JP2024069235A - Electronic devices and programs - Google Patents

Abstract

[Problem] To provide a control system etc. capable of displaying a screen in a format required by the user. [Solution] This radar detector is a control system that controls the display of screens in different formats that display information about the current situation in a predetermined order as described above at predetermined time intervals, such as one minute intervals. It also has a selection function that allows the user to select a screen in a format to be subject to this display switching, and the screen in the format selected by the selection function is subject to display switching. [Selected Figure] Figure 17

Description

The present invention relates to a control system that controls switching between screens of different formats that display information about the current situation.

For example, in a control system that warns of approaching a target such as a vehicle speed measuring device, the position information of the target is stored and an alarm is issued when the vehicle's position detected by GPS and the target's position come into a predetermined proximity relationship (see, for example, Patent Document 1, etc.).

In the case of the control system of Patent Document 1, for example, when the detected object to be notified and the current position of the vehicle reach a set distance (for example, 1 km or 500 m), a voice warning such as "500 m ahead, XX" (XX is information identifying the target (loop coil, etc.) is output, or the relevant information is output as text on the display.

These control systems, for example, contribute to preventing drivers from unwittingly driving too fast by informing them of the approach of a vehicle speed measuring device. In particular, since vehicle speed measuring devices are generally installed in places where it is easy to exceed the speed limit, they can alert drivers to the risk of speeding in dangerous areas.

In such a control system, when the vehicle is not approaching a notification target such as a vehicle speed measurement device, the system has the function of displaying the current situation by displaying a map screen of the area around the current position, displaying the acceleration acting on the vehicle, and displaying a clock (Patent Documents 2 and 3).

The user sets the display of a desired screen from among these different formats of screens that display information about the current situation, and the set screen is then displayed. However, in recent years, the number of types of sensors installed has increased, and vehicles have become equipped with the function of acquiring data sensed on the vehicle side from a connector connected to the vehicle and displaying various vehicle conditions, and as a result, many screens of different formats have been provided. Therefore, for example, a function that controls the display of these many different screen formats in a specified order at specified time intervals can be considered.

Utility Model Registration No. 3070388 Patent Publication No. 2009-9546 Patent Publication 2010-76740

However, when screens of different formats are switched and displayed in a predetermined order at a predetermined time interval, there is a problem that screens of formats unnecessary for the user are also displayed, and the screen desired by the user is often not displayed when desired. In such cases, the user is forced to wait until the desired screen is switched and displayed.
SUMMARY OF THE PRESENT EMBODIMENTS An object of the present invention is to provide a control system etc. capable of displaying a screen in a format required by the user.

To achieve the above-mentioned object, the control system according to the present invention is (1) a control system that controls switching between screens of different formats that display information about the current situation in a predetermined order at predetermined time intervals, and is configured to include a selection function that allows a user to select a screen of a format to be subject to the switching display, and to subject the screen of the format selected by the selection function to the switching display.

In this way, a screen in a format necessary for the user can be displayed. For example, if a screen in a format unnecessary for the user is not selected as a screen in a format to be switched to, the screen in a format unnecessary for the user will not be displayed. As a result, the screen in the desired format is more likely to be displayed when the user desires it. It is also possible to shorten the time it takes to switch to the desired screen.

Examples of information related to the current situation include the current time, the current date, the current location, the current situation of the person viewing the display of this system, and the current situation of the location where the display unit displayed by this control system is installed.

The current situation may be, for example, the situation at this very moment, or may be a situation some time before now, i.e., a situation close enough in the past that the user recognizes it as the current situation.
The predetermined order may be, for example, a fixed order that is determined in advance, an order that is set by the user, or a random order.

The specified time interval may be a fixed time interval that is determined in advance, such as an interval of one minute, or may be a time interval that varies depending on the status of the acquired information. The specified time interval may be a time interval set by the user. Also, for example, the time from displaying a screen in the first format to switching to displaying a screen in the second format and the time from displaying a screen in the second format to switching to displaying a screen in the third format may be the same or different.

The switching display may be configured, for example, so that the screen area is rewritten to another screen area. The screen may be, for example, the entire display area of the display means, but may also be a part of the display area of the display means. When rewriting, a predetermined switching effect display may be performed, for example, by gradually scrolling out the screen area while scrolling in another screen area, or by fading in and out in a similar manner.

(2) The information relating to the current situation may include a plurality of different pieces of information acquired about a moving object, and the different format screens may include a plurality of screens in a format that simultaneously displays the plurality of different pieces of information. In this way, for example, the plurality of different pieces of information acquired about a moving object may change as the moving object moves, and these changes may be grasped simultaneously by looking at the screen in a format that simultaneously displays the plurality of different pieces of information. Furthermore, since a plurality of screens in a format that simultaneously displays such a plurality of different pieces of information are provided, and control is performed to switch between the displays in a predetermined order at predetermined time intervals, it is possible to grasp, for example, a large amount of information that changes as the moving object moves in a short period of time.

The moving object may be, for example, a person or a vehicle. In the case of a person, the information may be acquired by sensing physiological phenomena such as the person's heart rate and body temperature, or by sensing the person's position and surrounding conditions. In the case of a vehicle, for example, the information may be acquired by sensing and generated by the vehicle itself, or the vehicle may be equipped with a GPS, acceleration sensor, gyro sensor, etc., and information may be acquired from these sensors.

(3) The selection function may be configured such that in the default state, screens of all selectable formats are subject to the switching display, and the user may select screens of formats that are not subject to the switching display. In this way, in the default state, screens of all selectable formats are switched and displayed in a predetermined order at predetermined time intervals. This allows the user to know screens of all formats that can be selected by this control system. Then, for example, after using the device in this state for a while, the user can select screens of formats that are not required for the user as screens of formats that are not subject to switching display, thereby switching and displaying only screens of formats that are required by the user.

(4) The selection function may be configured to display information representing the screen of each format for selection, and when switching between the formats, display information relating to the represented information together with the screen of the format. In this way, it is easy to determine which screen to select when executing the selection function by looking at the display of the information representing the screen of each format, and when the screen is switched to, it is possible to check that the settings have been properly made by looking at the information representing the screen of the format.

The information representing each screen format may be, for example, a character string of the name given to each screen, a thumbnail image of each screen in a reduced size, or an illustration or icon showing the content of each screen.

(5) The information representing the screen of the format is displayed in the screen of the format when the information is switched and erased when a predetermined time has passed since the switching, and the predetermined time until the erasure is shorter than the predetermined time from the display of the screen of the format to the switching to the screen of another format. In this way, the information representing the screen of the format is displayed in the screen of the format for a predetermined time and then erased. After that, the screen of the format is displayed without the information representing the screen of the format being displayed, and then the screen is switched to the screen of another format. Therefore, for example, when the screen is switched, it is possible to know what information the screen of the format displays from the information representing the screen of the format, and further, when this knowledge is obtained, the information representing the screen of the format is erased, so that information regarding the current situation can be confirmed without being disturbed by the display of the information representing the screen of the format.

(6) It is preferable that at least one of the selectable screens of the format is controlled to switch between a predetermined display area in the screen of the format at a predetermined time interval, and the predetermined time interval for switching from the screen of the format to a screen of another format is longer than the predetermined time interval for switching between a predetermined display area in the screen of the format. In this way, the predetermined display area in the screen of the format is switched between at a time interval shorter than the time interval for switching from the screen of the format to the screen of another format. Therefore, it is not possible to switch to a screen of another format without switching between a predetermined display area in the screen of the format. Therefore, by switching between a predetermined display area in the screen of the format and the screen of the format itself, it is possible to visually confirm a large amount of information about the current situation in a short period of time.

(7) At least one of the selectable screen formats may be a screen format that allows the current situation to be understood by comparing the current situation with a past situation, and the specified time interval for switching from the screen format to a screen of another format may be a time interval that allows the current situation to be understood by comparing the current situation with a past situation. In this way, it is possible to visually compare the current situation with a past situation before the screen of the currently displayed format is switched to a screen of the other format. Note that an example of a format that allows the current situation to be understood by comparing the current situation with a past situation may be a screen that displays a graph showing both the current situation and the past situation.

(8) It is preferable to have an event screen display switching function that switches to a screen notifying the occurrence of a predetermined event when a predetermined event occurs during execution of a function for switching between screens of different formats in a predetermined order at predetermined time intervals, and not have a screen of the same format as the screen notifying the occurrence of the event as a screen of a format selectable as a target for the switching display. In this way, the screen of the same format as the screen notifying the occurrence of an event is not switched in a predetermined order at predetermined time intervals, so that the user can be sure that an event has occurred and will not mistakenly recognize the screen that is switched in a predetermined order at predetermined time intervals as an event occurrence screen.
(10) The functions of the control system described in any one of (1) to (9) may be configured as a program for causing a computer to realize the functions.

The present invention provides a control system that can display a screen in a format required by the user.

1 is a diagram showing the configuration of a radar detector according to a preferred embodiment of the present invention; FIG. 1 is a block diagram of a radar detector. FIG. 13 is a diagram showing a display example of a display screen selection screen. 13A and 13B are diagrams illustrating display examples of a map screen and a clock screen. 13A to 13C are diagrams illustrating display examples of a speed screen, an eco-driving screen, and an acceleration screen. 13A to 13C are diagrams showing display examples of an inclination screen, a tide information screen, and a graph screen. 11A to 11C are diagrams showing display examples of a preset A screen, a preset B screen, and a preset C screen. 11A to 11C are diagrams illustrating display examples of a positioning information screen, a fuel consumption screen, and an OBD data screen. 13A to 13C are diagrams illustrating a display example of screen transition of a map screen due to a GPS alarm function. 13A to 13C are diagrams illustrating a display example of screen transition of a map screen due to a GPS alarm function. 13A to 13C are diagrams illustrating a display example of screen transition of a map screen due to a radar wave warning function. 13A to 13C are diagrams illustrating a display example of screen transition of a map screen due to a radar wave warning function. 13A to 13C are diagrams illustrating a display example of screen transition of a map screen due to a radar wave warning function. 13A to 13C are diagrams illustrating a display example of screen transition of a map screen by a wireless alarm function. 13A and 13B are diagrams showing display examples of a setting screen and a standby screen setting screen. FIG. 13 is a diagram showing a display example of an automatic item setting screen. FIG. 13 is a diagram showing a display example of an automatic item setting screen. FIG. 13 is a diagram showing a display example of an automatic item setting screen. FIG. 13 is a diagram showing an example of a preset meter setting screen display. FIG. 13 is a diagram showing a display example of a meter type selection screen. FIG. 13 is a diagram showing a display example of a meter type selection screen. FIG. 13 is a diagram showing a display example of a meter type selection screen. FIG. 13 is a diagram showing a display example of a preset A screen. FIG. 13 is a diagram showing a display example when the screen is switched. 11A and 11B are diagrams illustrating an example of switching of a predetermined display area within a screen. FIG. 26 is a diagram showing an example of a tide information screen displayed on the day shown in FIG. 25 .

1 and 2 show the configuration of a radar detector, which is a preferred embodiment of the control system of the present invention. This radar detector is usually attached to a dashboard. This radar detector is usually fixed to the dashboard by attaching the bottom surface of the plate 33b of the base 33. A ball joint receiving portion 33a is provided on the upper portion of the base 33, and a ball portion provided at the lower end of the support portion 31 extending downward from the bottom surface of the case body 1 can be inserted into this ball joint receiving portion 33a to hold the ball portion at any angle and position within its movable range. The base 33 has a spherical recess at a predetermined position on its upper surface, and the base 33 is made of a material such as rubber that is elastically deformable and has an appropriate friction coefficient. The outer diameter of the ball portion and the inner diameter of the recess are set to be approximately equal. As a result, when the ball portion is inserted into the recess, the outer shape of the ball portion and the inner shape of the recess approximately match, and the ball portion can rotate and move in any direction along the spherical surface. By making the diameters of both almost the same and giving the inner shape of the recess an appropriate friction coefficient, the ball part can be held at any angle and posture. Furthermore, since the base 33 can be elastically deformed, when the case body 1 is urged in a direction to be pulled upward while holding the base 33 from the state shown in FIG. 1, the diameter of the opening of the recess widens and the ball part can be removed from the recess. Conversely, when the base 33 and the ball part are in a separated state, if the ball part is pressed against the opening of the recess and urged toward the base 33 in that state, the opening widens due to the elastic deformation of the recess and the ball part is stored in the recess. After that, the shape of the recess returns to its original shape due to the elastic restoring force of the base 33, and the ball part is prevented from easily coming off the recess. In addition, one side of an adhesive member such as an adhesive sheet, double-sided adhesive tape, or hook-and-loop fastener is attached to the bottom surface of the base 33, and the other side of the adhesive member is attached to a predetermined position in the vehicle interior such as the dashboard. As a result, the base 33 is fixed in a predetermined position visible to the driver in the vehicle interior.

As shown in Figure 1, this radar detector has a solar panel 2 and a switch section 3 arranged on the top surface of the case body 1, and a microwave receiver 4 that detects microwaves in the frequency band emitted by the speed measuring device arranged inside the front side of the case body 1 (the side that is arranged toward the front of the vehicle (windshield side)). On the other hand, the rear side of the case body 1 (the side arranged toward the rear of the vehicle (user side (driver side))) is provided with a display unit 5, a warning lamp 6, an infrared communication device 7, and a remote control receiver 16. A GPS receiver 8 is also provided inside the top side of the case body 1. Furthermore, an adapter jack 9 is provided on one side of the case body 1, and a power switch 10 and a DC jack (not shown) are provided on the other side. A battery is provided inside the bottom side of the case body, and this battery is charged with power supplied from the solar panel 2 and the DC jack, and power is supplied to each part. A speaker 20 is also built into the case body 1. In this embodiment, the display unit 5 is a small 3-inch color dot matrix liquid crystal display with a backlight, and the rear side of the case body 1 (the side arranged toward the rear of the vehicle (user side (driver side))) is used as the display surface, and a touch panel is provided on the display surface side so that the position touched on the liquid crystal display can be detected. The height H of the rear side of the case body 1 on which the display unit 5 is mounted is greater than the height H0 of the other parts.

2, the infrared communication device 7 transmits and receives data to and from a communication device having an infrared communication device built in, such as a mobile phone 12. The adapter jack 9 is a terminal for connecting the memory card reader 13. By connecting the memory card reader 13 to the adapter jack 9, data stored in the memory card 14 attached to the memory card reader 13 can be imported into the device, and the contents of the database 19 and the memory of the control unit 18 can be written to the memory card 14. More specifically, if the data stored in the memory card 14 includes updated information such as information on a new target (location information including longitude and latitude, type information, etc.), the control unit 18 stores (downloads) the updated information in the database 19 built in the radar detector, and updates the data in the database 19. The function of the memory card reader 13 may be configured to be built in the main body case 1, or at least a part of the database 19 may be provided in the memory card 14.

The database 19 is a non-volatile memory (for example, an EEPROM) that is either inside the microcomputer of the control unit 18 or external to the microcomputer. At the time of shipment, the database 19 stores registered information such as map data similar to that provided in navigation devices, including information on certain landmarks, roads, facilities, and place names, public traffic enforcement information including the dates and locations of traffic enforcement actions released by prefectural police, and parameters for tide stations and the like used to calculate tidal information, and data added later can be updated as described above. Data updates can also be performed via the infrared communication device 7.

The DC jack is for connecting a cigarette plug cord (not shown), which can be connected to the vehicle's cigarette lighter socket to receive power.

The radio receiver 15 receives incoming radio waves of a specific frequency. The remote control receiver 16 communicates data with the remote control (portable device: child device) 17 via infrared rays and performs various settings for this device. The remote control 17 is equipped with screen selection buttons, a setting button, a selection button, a cancel button, a decision button, a reset button, and up, down, left, and right cross buttons. The switch unit 3 is also connected to the control unit 18 (not shown), and is equipped with screen selection buttons, a setting button, a selection button, a cancel button, a decision button, and a reset button that operate in the same way as the remote control 17.

Furthermore, the radar detector of this embodiment is provided with a connection cable 22 that connects to an OBD-II (II is the Roman numeral "2", and "OBD-II" will be referred to as "OBD2") connector installed in the vehicle as shown in FIG. 2, and a connector terminal 23 that can be detachably attached to the OBD2 connector of the vehicle is attached to the tip of this connection cable 22. The OBD2 connector is also called a fault diagnosis connector, and is connected to the ECU of the vehicle and outputs various vehicle information. Furthermore, in this embodiment, a connector terminal 25 is provided at the other end of the connection cable 22 for connecting to a socket port 24 provided on the side of the case body 1 of the radar detector, so that the connection cable 22 can be detached from the radar detector as well. Of course, the connection cable 22 may be directly connected to the radar detector.

Then, by connecting the connector terminal 23 attached to the connection cable 22 with the OBD2 connector on the vehicle body, the control unit 18 acquires various vehicle information every 0.5 seconds. This vehicle information includes, for example, vehicle speed, engine RPM, engine load factor, throttle degree, ignition timing, percentage of remaining fuel, intake manifold pressure, intake air volume (MAF), injection open time, engine coolant temperature (coolant temperature), temperature of air taken into the engine (intake temperature), air temperature outside the vehicle (outside air temperature), amount of remaining fuel in the fuel tank (remaining fuel amount), fuel flow rate, instantaneous fuel consumption, accelerator opening, turn signal information (operation of left and right turn signals (ON/OFF)), brake opening, steering wheel rotation angle information, etc.

The acceleration sensor 27 is provided inside the case body 1 and is a sensor that detects the acceleration of the vehicle in the forward/backward, left/right, and up/down directions. The geomagnetic sensor is provided inside the case body 1 and is a sensor that detects the geomagnetism to determine which direction north is in relative to the direction of travel.

The control unit 18 is a microcomputer equipped with a CPU, ROM, RAM, I/O, etc., and executes predetermined processing based on information input from the various input devices described above, and outputs predetermined alarms, messages, and information using the various output devices described above. Note that the basic configuration of these can basically be the same as that of conventional devices.

The functions of the radar detector of this embodiment are stored in the EEPROM of the control unit 18 as a program executed by the computer in the control unit 18, and are realized by the computer in the control unit 18 executing this program.

Functions that the computer realizes using the programs in the control unit 18 include a GPS log function, a current information display function, a GPS warning function, a radar wave warning function, and a wireless warning function.

The GPS log function is a function that associates the current position output from the GPS receiver 8 every second with the time and speed (vehicle speed) at which the control unit 18 detected the current position, and stores this in the database 19 as a position history. This position history is recorded in, for example, the NMEA format.

The current information display function is a function that displays a screen of a format to be displayed selected by the user. The screen of the format to be displayed is selected by displaying the display screen selection screen shown in FIG. 3 and selecting screen 1 when the pressing of the screen selection button of the remote control 17 or the switch unit 3 is detected. FIG. 3(a) is a display screen selection screen displayed when the radar detector and the vehicle's ECU are connected by a connection cable 22 or the like (this state is called the OBD2 connection state). FIG. 3(c) is a display screen selection screen displayed when the radar detector and the vehicle's ECU are not connected by a connection cable 22 or the like (this state is called the OBD2 non-connection state). There are 14 types of formats that can be selected in the OBDII non-connection state, and 16 types of formats that can be selected in the OBD2 connection state. The 14 types of screen formats that can be selected in the non-OBD2 connected state include a map screen as illustrated in FIG. 4(a), a clock screen as illustrated in FIG. 4(b), a speed screen as illustrated in FIG. 5(a), an eco-driving screen as illustrated in FIG. 5(b), an acceleration screen as illustrated in FIG. 5(c), an inclination screen as illustrated in FIG. 6(a), a tide information screen as illustrated in FIG. 6(b), a graph screen as illustrated in FIG. 6(c), a preset A screen as illustrated in FIG. 7(a), a preset B screen as illustrated in FIG. 7(b), a preset C screen as illustrated in FIG. 7(c), a positioning information screen as illustrated in FIG. 8(a), an OFF screen which is a completely black screen that does not display anything, and an AUTO display screen which, in the default state, switches between all of these screen formats other than the map screen and the OFF screen every minute. The 16 types of screen formats that can be selected when OBD2 is connected are, in addition to the 14 types of screen formats that can be selected when OBD2 is not connected, the fuel economy screen shown in FIG. 8(b) and the OBD data screen shown in FIG. 8(c), and in the default state, the AUTO display screen switches between all of these screen formats, including the map screen and the OFF screen, every minute.

As shown in Figure 3, the display screen selection screen displays reduced screens of each of the above-mentioned formats in a 4-row by 4-column layout. The vertical direction will be described as the first, second, third, and fourth rows from top to bottom, and the horizontal direction will be described as the first, second, third, and fourth columns from left to right.

In the OBD2 non-connected state, the layout of the reduced screens is as shown in FIG. 3(c), with the map screen in the first row, first column (top left), the clock screen in the first row, the speed screen in the first row, the eco-drive screen in the first row, the acceleration screen in the second row, the inclination screen in the second row, the tide information screen in the second row, the graph screen in the fourth row, the preset A screen in the first row, the preset B screen in the second row, the preset C screen in the third row, the positioning information screen in the fourth row, the OFF screen in the third row, and the AUTO display screen in the fourth row, fourth column (bottom right). In the OBD2 connected state, as shown in FIG. 3(a), in addition to the reduced screens arranged in the same way as in the OBD2 non-connected state, the fuel consumption screen is in the first row, fourth column, and the OBD data screen is in the second row. In this way, the layout of the reduced screen can be made consistent between the OBD-disconnected state and the OBD-connected state, which helps to avoid operational confusion when the OBD connection state changes.

In the factory default settings, the map screen in the first row and first column is set and stored in the database 19 as the screen of the selected format, as shown in FIG. 3(a). The screen of the format selected on the display screen selection screen draws a focus frame, which is a frame surrounding the reduced screen of that format. When the press of any of the up, down, left, and right buttons of the remote control 17 is detected, the focus frame moves to one reduced screen in the direction indicated by the pressed button. For example, when the focus frame is on the map screen as shown in FIG. 3(a), if the down button of the remote control is pressed four times and the right button is pressed three times, the focus frame is moved to the AUTO display screen and displayed as shown in FIG. 3(b). Similarly, when a touch is detected at a position on the touch panel of the display unit 5 corresponding to the display position of the reduced screen, the focus frame is moved to that touch position. When the press of the decision button of the remote control 17 or the switch unit 3 is detected, the screen of the format corresponding to the reduced image of the format displaying the focus frame is set and stored in the database 19 as the screen of the format to be displayed selected by the user, and is displayed based on this stored setting. The next time the unit is turned on, the screen will be displayed in the selected format stored in the database 19.

For example, as shown in FIG. 3(a), when the focus frame is moved and displayed on the reduced map screen, pressing of the enter button on the remote control 17 or switch unit 3 is detected, the map screen displaying the focus frame is stored in the database 19 as the screen in the format to be displayed selected by the user, and is displayed on the display unit 5 in this format as shown in FIG. 4(a). Similarly, as shown in FIG. 3(b), when the focus frame is displayed on the AUTO display screen and pressing of the enter button on the remote control 17 is detected, the AUTO screen is displayed.

Next, the format (configuration) of each screen will be explained with reference to Figs. 4 to 8. As shown in Figs. 4 to 8, all of these screens except for the OFF screen have a clock display section in the upper right corner of the screen, and are formatted to display the hour and minute of the current time received from a satellite by the GPS receiver 8.

As shown in FIG. 4(a), the map screen has a direction display section at the top left that displays which direction the north direction is relative to the map display direction based on the direction of geomagnetism detected by the geomagnetic sensor 28, and a vehicle speed display section to the right of the direction display section that displays the vehicle speed detected by the GPS receiver 8. On the other hand, the lower part of the screen has a strip-shaped telop display section in the left-right direction, a place name display section to the left of the left-right center that searches the database 19 for and displays the current place name corresponding to the current position detected by the GPS receiver 8, and a public enforcement information display section to the right of the left-right center that searches the database 19 for and displays public enforcement information related to the current position and the current date and time. A map display section is provided in the screen area of the display unit 5, excluding the direction display section, vehicle speed display section, and clock display section at the top of the screen, and the strip-shaped display section at the bottom of the screen. The map display section can be set in the setting screen to display either the so-called north-up display (display where north is at the top of the screen) or the head-up display (heading-up display) (display where the traveling direction is at the top of the screen), and displays in the set direction. The example in Fig. 4(a) is an example of a display when the head-up display is set. The map display section displays the current position detected by the GPS receiver 8 as an arrow-shaped current position icon in the center of the screen in the horizontal direction and near the bottom edge of the map display area above the strip-shaped display section at the bottom of the screen, and map data for an area approximately 300 m above, 300 m to the left, and 300 m to the right from that point (map data within the range that can be displayed on the map display section) is read from the database 19 and displayed.

As shown in FIG. 4(b), the clock screen has an analog clock display section on the left that displays the current time obtained from the GPS receiver 8 in the style of an analog clock using hour and minute hands, and a date and other information display section on the right that displays the current date and day of the week obtained from the GPS receiver 8.

As shown in FIG. 5(a), the speed screen displays the current travel speed (vehicle speed in this embodiment) obtained from the GPS receiver 8 on the left side using an analog meter with a needle (in the example of FIG. 5(a), the needle overlaps with the scale of 60 km/h), and also has a speed display section that displays the speed numerically slightly to the right of the center of the analog meter, and a direction display section on the right side that displays the north direction obtained from the geomagnetic sensor using an image of a compass (magnetic needle).

As shown in FIG. 5B, the eco-driving screen has a radar chart display section on the left, an overall evaluation display section on the upper right, and a driving speed display section on the lower right. The radar chart display section displays sudden acceleration on the upper side, sudden deceleration on the right, idling on the lower side, and economical speed on the left, in points. Each point is displayed with an upper limit of 100 points (displayed as 100pt) and a lower limit of 0pt. The initial value of each point is 70pt, and points are subtracted when the acceleration output of the acceleration sensor 27 and the speed output from the GPS receiver 8 become an output state that is determined not to be eco-driving, and points are added when the output state becomes an output state that is determined to be eco-driving, and the numerical value of each point and a graph in which the numerical value is plotted on the radar chart are displayed. The overall evaluation display section displays the average value of each point displayed on the radar chart display section. The driving speed display section displays the current speed obtained from the GPS receiver 8.

As shown in FIG. 5(c), the acceleration screen has an acceleration image display section on the left and an acceleration numerical value display section on the right. The acceleration image display section displays a vehicle image in a circular frame with the front direction of the vehicle on the top and the rear direction on the bottom, and displays a scale that is a point that radiates from the center. The direction and strength of the acceleration obtained from the acceleration sensor 27 are displayed as the direction and magnitude of the arrow (vector). When the vehicle accelerates forward, the arrow is displayed in a corresponding relationship that the arrow is backward. The acceleration numerical value display section displays, from top to bottom, the character strings "Speed", "F/R", "L/R", "Current Acceleration", "Maximum Acceleration", and "Maximum Deceleration", and the value to the right of each character string. The numerical value of "Speed" displays the current speed obtained from the GPS receiver 8. The numerical value of "F/R" displays the magnitude of the current acceleration in the front-rear direction of the vehicle obtained from the acceleration sensor 27. The numerical value of "L/R" displays the magnitude of the current acceleration in the left-right direction of the vehicle obtained from the acceleration sensor 27. The numerical value of "Current Acceleration" displays the magnitude of the current acceleration vector obtained from the acceleration sensor 27. "Maximum acceleration" displays the maximum value of acceleration in the vehicle's longitudinal direction (maximum value in the positive direction of "F/R") from the time when power was supplied from the DC jack, i.e., from the time when the vehicle's ACC was turned on, to the present. "Maximum deceleration" displays the maximum value of acceleration in the vehicle's longitudinal direction (maximum value in the negative direction of "F/R") from the time when power was supplied from the DC jack, i.e., from the time when the vehicle's ACC was turned on, to the present.

As shown in FIG. 6(a), the tilt screen has a tilt image display section on the left side that displays an image of the current tilt state of the vehicle based on the output value of the acceleration sensor 27, and a numerical display section on the right side. The tilt image display section displays a spherical image within a circular frame, with the upper side above the horizontal plane colored white, the lower side black, and the lines on the horizontal plane colored red, which is moved based on the output value of the acceleration sensor 27 to correspond to the current tilt state of the vehicle in the forward/rearward and left/right directions, with the vehicle state at the time of power-on as the reference horizontal state. The left/right tilt angle can be confirmed using a scale provided on the circular frame, and the forward/rear tilt angle can be confirmed using a scale provided on the spherical image. The numerical display section is a heading angle display section on the upper level that displays the angle of the current heading direction relative to the north direction obtained from the geomagnetic sensor as a numerical value, and a speed display section on the lower level that displays the current driving speed as a numerical value.

As shown in FIG. 6(b), the tide information screen has a horizontally striped place name, moon age, and tide name display section to the left of the clock section in the upper right corner of the display unit 5 screen, and a tide level graph display section below that, taking up almost the entire screen horizontally and vertically below that. The place name, moon age, and tide name display section displays the current date obtained from the GPS receiver 8, the place name of the tide gauge station closest to the current position at the current date and time, the moon age and tide name for the current date. The tide level graph display section displays the sunrise time for the current date, the current date, and the sunset time for the current date, from left to right in the horizontal direction at the top. Below that, a 24-hour tide level graph for the current date (today), with the left end at 0:00 and the right end at 24:00, is displayed. The tide level graph is calculated and displayed by a known method using the parameters of the tide gauge stations stored in the database 19 for the current date and the tide gauge stations near the current position. The graph also shows the tide levels of low and high tide at the positions of today's low and high tide times.

As shown in Figure 6 (c), the graph screen has a graph display section covering about two-thirds of the left side of the screen, and a numerical display section on the right side of the screen. The graph display section displays the type of graph set on the setting screen, and the numerical display section displays the current value of the type displayed on the graph as a numerical value. The types of graphs that can be set on the setting screen are speed, altitude, and acceleration. The right end of the graph shows the current value, and moving left shows the past state. For example, the left end could be the value from one minute ago.

The preset A screen shown in FIG. 7(a), the preset B screen shown in FIG. 7(b), and the preset C screen shown in FIG. 7(c) are screens that display three meters that are preset in the preset meter setting screen and stored in the database 19. Hereinafter, these screens are collectively referred to as preset screens. Each preset screen displays three meters: a left-position meter displayed in a circular frame centered on a position toward the left in the horizontal direction and toward the bottom in the vertical direction, a middle-position meter displayed in a circular frame centered on a position toward the top in the vertical direction and in the center in the horizontal direction, and a right-position meter displayed in a circular frame centered on a position toward the right in the horizontal direction and toward the bottom in the vertical direction. The three meters are symmetrical with respect to a virtual line drawn in the vertical direction that passes through the center of the circle of the middle-position meter as the axis of symmetry. This is called a triple meter. The circular frames of the left-position meter, middle-position meter, and right-position meter are arranged so that the display contents inside the meter are generally visible while partially overlapping, and the middle-position meter is displayed so that the entire circular frame can be seen. This makes it easy to position the center meter as the main meter and the right and left meters as sub meters. Also, the screen area can be effectively used to display each meter as large as possible. When OBD2 is not connected, the types of meters that can be preset include clock, satellite information, tide information, vehicle speed, eco-driving, acceleration, incline, and compass. When OBD2 is connected, in addition to these, there are instantaneous fuel consumption, average fuel consumption, general road average fuel consumption, highway average fuel consumption, current fuel consumption, lifetime fuel consumption, moving average fuel consumption, fuel flow, engine water temperature, intake air temperature, outside air temperature, battery voltage, throttle opening, engine load, intake manifold gauge, boost gauge, and tachometer.

As shown in FIG. 8(a), the positioning information screen depicts a globe in the center of the screen, and displays the positions of satellites currently being received by the GPS receiver 8 at the corresponding positions on the globe. It also displays the numbers of the four satellites with the highest reception levels and their reception levels on a display located around the periphery of the globe.

As shown in FIG. 8(b), the fuel economy screen displays an OBD data display section on the left side of the screen, an instantaneous fuel economy display section on the upper right side, and a current fuel economy display section on the lower right side. The OBD data display section displays numerical information (referred to as OBD data) based on vehicle information acquired from the vehicle side via the connector terminal 23. This OBD data display section displays an item selected from 56 items on the setting screen. As shown in FIG. 8(b), eight items can be displayed simultaneously, and if more than eight items are selected, the items are scrolled at a predetermined time interval to display all selected items.

As shown in FIG. 8(c), the OBD data screen is a screen in a format in which a display section similar to the OBD data display section in FIG. 8(b) is also displayed on the right side of the screen. In other words, the number of OBD data items that can be displayed simultaneously is 8 items on the right side and 8 items on the left side, and if more than a total of 16 items are selected, the display scrolls at a predetermined time interval to display all selected items.

The 56 items that can be selected as OBD data are "Speed", "Average Speed", "Maximum Speed", "5-second Speed", "Average 5-second Speed", "Maximum 5-second Speed", "RPM", "Average RPM", "Maximum RPM", "Engine Load", "Average Load", "Maximum Load", "Throttle Opening", "Average Throttle Opening", "Maximum Throttle Opening", "Ignition Timing", "Fuel Level", "Intake Manifold Pressure", "MAF", "INJ", "Coolant Temperature", "Intake Temperature", "Outside Air Temperature", "Remaining Fuel", "Fuel Flow", "Fuel Consumed", "Lifetime Fuel Consumed", "Instantaneous Fuel Consumption", "Current Fuel Consumption", "Lifetime Fuel Consumption", "Average ... "Idle ratio", "Distance travelled", "Lifetime mileage", "0-20km/h acceleration time", "0-20km/h average acceleration", "Shortest acceleration time for 0-20km/h", "0-40km/h acceleration time", "0-40km/h average acceleration", "Shortest acceleration time for 0-40km/h", "0-60km/h acceleration time", "0-60km/h average acceleration", "Shortest acceleration time for 0-60km/h", "0-80km/h acceleration time", "0-80km/h average acceleration", "Shortest acceleration time for 0-80km/h", "0-20km/h driving time", "20-40km/h driving time", "40-60km/h driving time", "60-80km/h driving time", and "Driving time over 80km/h".

"Speed" displays the current vehicle speed obtained from the vehicle in km/h units. "Average speed" displays the average vehicle speed obtained from the vehicle since the unit was turned on in km/h units. "Maximum speed" displays the highest vehicle speed obtained from the vehicle since the unit was turned on in km/h units. "5-second speed" displays the average vehicle speed obtained from the vehicle from 5 seconds ago to the present in km/h units. "Average 5-second speed" displays the average speed obtained from the vehicle every 5 seconds since the unit was turned on in km/h units. "Maximum 5-second speed" displays the highest speed obtained from the vehicle every 5 seconds since the unit was turned on in km/h units. "Revolutions" displays the current engine speed obtained from the vehicle in rpm units. "Average revolutions" displays the average engine revolutions obtained from the vehicle from the power on to the present in rpm units. "Maximum revolutions" displays the highest engine revolutions obtained from the vehicle from the power on to the present in rpm units. "Engine load" displays the current engine load rate obtained from the vehicle in units of %. "Average load" displays the average value of the engine load rate obtained from the vehicle from power-on to the present in units of %. "Average load" displays the average value of the engine load rate obtained from the vehicle from power-on to the present in units of %. "Maximum load" displays the maximum value of the engine load rate obtained from the vehicle from power-on to the present in units of %. "Throttle opening" displays the current throttle opening obtained from the vehicle in units of %. "Average throttle opening" displays the average value of the throttle opening obtained from the vehicle from power-on to the present in units of %. "Maximum throttle opening" displays the maximum value of the throttle opening obtained from the vehicle from power-on to the present in units of %. "Ignition timing" displays the current ignition timing obtained from the vehicle in units of degrees. "Average throttle opening" displays the average value of the throttle opening obtained from the vehicle from power-on to the present in units of %. "Maximum throttle opening" displays the maximum throttle opening obtained from the vehicle from the time the power was turned on in %, in %. "Fuel level" displays the current remaining fuel percentage obtained from the vehicle in %, ... "Fuel flow rate" displays the current fuel flow rate obtained from the vehicle in ml/m. "Fuel consumed" displays the difference between the remaining fuel amount obtained from the vehicle when the power is turned on and the current remaining fuel amount in ml. "Lifetime fuel consumed" displays the cumulative value of fuel consumed since the unit was first installed or reset in L. "Instantaneous fuel consumption" displays the current instantaneous fuel consumption obtained from the vehicle in km/l. "Current fuel consumption" displays the fuel consumption for the current trip, etc., calculated based on the instantaneous fuel consumption obtained from the vehicle from the time the power was turned on to the present, in km/l. "Lifetime fuel consumption" displays the fuel consumption in km/l calculated based on the instantaneous fuel from the time the unit was first installed or the all reset was performed on the setting screen to the present. "Average fuel consumption" displays the fuel consumption in km/l calculated based on the instantaneous fuel from the time the unit was first installed or the average fuel consumption was reset on the setting screen to the present. "Average fuel economy on general roads" determines whether the current location corresponds to a general road location based on the map data stored in the database 19 and the current location acquired by the GPS receiver 8, and displays the average fuel economy on general roads from the time the device was first installed or from the time the average fuel economy was reset on the setting screen to the present in km/l units based on the instantaneous fuel economy acquired from the vehicle side at the general road location. Similarly, "Average fuel economy on expressways" displays the average fuel economy on expressways in km/l units. "Driving time" displays the time from power-on to the present in the format of hours:minutes:seconds. "Running time" displays the time during which the vehicle speed acquired from the vehicle side exceeded 0 from the time power-on to the present in the format of hours:minutes:seconds. "Idle time" displays the time during which the vehicle was stopped from the time power-on to the present, i.e., the time during which the vehicle speed acquired from the vehicle side was 0, in the format of hours:minutes:seconds. "Idle ratio" displays the ratio in % between the time during which the vehicle was running, i.e., the time during which the vehicle speed exceeded 0 (running time), and the time during which the vehicle was stopped, i.e., the time during which the vehicle speed acquired from the vehicle side was 0 (stopped time), from the time power-on to the present. "Distance traveled" displays the distance traveled in km from when the power was turned on to the present, calculated from the vehicle speed and elapsed time obtained from the vehicle side. "Lifetime mileage" displays the cumulative distance traveled in km from when the unit was first installed or reset. "0-20km/h acceleration time" displays the time taken to reach 20km/h from the most recent stopped state in seconds. "0-20km/h average acceleration" displays the average time taken to reach 20km/h from a stopped state in seconds. "0-20km/h minimum acceleration" displays the minimum time taken to reach 20km/h from a stopped state in seconds. "0-40km/h acceleration time" displays the time taken to reach 40km/h from the most recent stopped state in seconds. "0-40km/h average acceleration" displays the average time taken to reach 40km/h from a stopped state in seconds. "0-40km/h Fastest Acceleration" displays the fastest time taken to reach 40km/h from a stopped state in seconds. "0-60km/h Acceleration Time" displays the fastest time taken to reach 60km/h from a stopped state in seconds. "0-60km/h Average Acceleration" displays the average time taken to reach 60km/h from a stopped state in seconds. "0-60km/h Fastest Acceleration" displays the fastest time taken to reach 60km/h from a stopped state in seconds. "0-80km/h Acceleration Time" displays the fastest time taken to reach 80km/h from a stopped state in seconds. "0-80km/h Average Acceleration" displays the average time taken to reach 80km/h from a stopped state in seconds. "0-80km/h Fastest Acceleration" displays the fastest time taken to reach 80km/h from a stopped state in seconds. "0-20km/h driving time" displays the total time traveled from a stopped state at a speed of 20km/h in the format of hours:minutes:seconds. "20-40km/h driving time" displays the total time traveled between 20km/h and 40km/h in the format of hours:minutes:seconds. "40-60km/h driving time" displays the total time traveled between 40km/h and 60km/h in the format of hours:minutes:seconds. "60-80km/h driving time" displays the total time traveled between 60km/h and 80km/h in the format of hours:minutes:seconds. "Time traveled over 80km/h"
displays the total time traveled at a speed of 80km/h or faster in the format hours:minutes:seconds.

Next, we will explain the processing that is executed in response to an event that occurs while the current information display function is being executed. While the current information display function is being executed, processing is executed to realize each function, such as a GPS warning function, a radar wave warning function, a wireless warning function, etc., in response to an event that occurs, and when the processing of that function is completed, the processing returns to the original execution processing of the current information display function. The priority of each function is set in the order of highest to lowest: radar wave warning function, wireless warning function, and GPS warning function.

The GPS warning function is a process that is triggered by the position information output every second from the GPS receiver 8, and calculates the distance between the two from the latitude and longitude of the target stored in the database 19 and the latitude and longitude of the current position detected by the GPS receiver 8, and when the calculated distance becomes a predetermined approach distance (for example, within 1 km), outputs an approach warning sound from the speaker 20. When a screen other than the map screen is currently displayed as the information display function (including the OFF screen), the process of outputting the sound is performed in this manner. On the other hand, when the map screen is currently displayed as the information display function, in addition to the sound output, an alarm window that draws an image based on the schematic diagram of the approach warning or photo data, etc., is drawn on top of (in front of) the map displayed in the map display section of the map screen in the order of Figures 9(a), (b), (c), and 10(a), (b), and (c). That is, Figure 9(a) shows a state in which the distance between the two is not yet within 1 km, and the map is displayed in the map display section of the map screen, but the alarm window is not displayed. When the distance between the two is within 1 km, as shown in FIG. 9(b), the size of the warning window is gradually increased from the upper left to the lower right of the map display section until the right edge of the warning window is slightly to the right of the center in the horizontal direction of the map display section, while the brightness of the display is brightened. The gradual increase in brightness of the display is illustrated as a change from FIG. 9(a) to FIG. 9(b). The size of the window is a display process similar to the drawing process in the order of FIG. 11(a), (b), and (c) described later. As for the animation, an object showing the shape of the target displayed inside the warning window is rotated, and characters stored in the database 19 for each target, such as "WARNING", are displayed in front of it in order from the character at the left end to the right. A mini radar is displayed on the upper right side of the map display section, superimposed on the map (foreground). The mini radar is a circular window with a diameter of about a quarter of the screen in the horizontal direction, and is displayed in the upper right position of the map display section. The mini radar displays a triangular vehicle position object in the center of the circle, and draws the position of the target as seen from the current position as a round object within the circle. The radius of the circle corresponds to a distance of 1 km. In the example of Fig. 9(b)(c), the current position and the position of the target, the H system, are displayed. The distance from the current position to the target is displayed within this circle. In Fig. 9(b)(c), the distance from the current position to the target is 580 m, in Fig. 10(a) it is 500 m, and in Fig. 10(b) it is 480 m. When the target is passed, the warning window is erased in the reverse process to the warning window (Fig. 10(c)). As shown in Fig. 9(c), Fig. 10(a), and Fig. 10(b) in order, when the distance to the target is 500 m or less, the animation is gradually changed to a real image. When the distance between the current position and the target is considered to be 0, it is determined that the target has passed, and the warning window displaying the real image is faded out as shown in Fig. 10(c), and the warning window is erased. The real image is actual photographic data taken of the target's position.

Such targets include locations of drowsy driving accidents, radar, H system, LH system, speed limit change points, enforcement areas, checkpoint areas, parking ban monitoring areas, N system, traffic monitoring system, intersection monitoring points, red light ignoring prevention systems, police stations, accident-prone areas, areas with high rates of vehicle theft, sharp/continuous curves (expressways), branching/merging points (expressways), ETC lane advance guidance (expressways), service areas (expressways), parking areas (expressways), highway oases (expressways), smart interchanges (expressways), PA/SA gas stations (expressways), tunnels (expressways), highway radio receiving areas (expressways), prefectural border notices, roadside stations, and viewpoint parking. Information on the types of targets, latitude and longitude information indicating their positions, and schematic or photographic data and audio data to be displayed on the display unit 5 are associated with each other and stored in the database 19, and an approach warning is issued by referring to these.

The radar wave warning function is a warning function that displays a warning screen on the display unit 5 and outputs a warning sound from the speaker 20 when the microwave receiver 4 detects a signal corresponding to microwaves (radar waves) in a frequency band emitted by a speed measuring device (such as a mobile radar (hereinafter simply referred to as "radar")). For example, when microwaves in the frequency band of microwaves emitted by a radar are detected by the microwave receiver 4, the voice data stored in the database 19 is read and a voice saying "It's radar. Watch your speed" is output from the speaker 20. During the voice output, the warning lamp 6 is turned on. When a screen other than the map screen is currently displayed as the information display function (including the OFF screen), the voice output process is performed in this manner. On the other hand, when the map screen is currently displayed as the information display function, in addition to the voice output, an animation of a warning window that draws a schematic diagram of a radar wave warning or an image based on photo data, etc., is drawn superimposed on (in front of) the map displayed in the map display unit of the map screen, as shown in the order of Figures 11 (a), (b), (c), and 12 (a), (b), and (c). That is, FIG. 11(a) shows a state where the microwave receiver 4 is not receiving radar waves, and the map is displayed on the map display section of the map screen, but the warning window is not displayed. When the microwave receiver 4 receives radar waves, as shown in the order of FIG. 11(b)(c), the size of the warning window is gradually increased from the upper left to the lower right of the map display section until the right edge of the warning window is slightly to the right of the center in the horizontal direction of the map display section, while the display brightness is brightened. As an animation, an object showing the shape of the target displayed inside the warning window is rotated, and characters stored in the database 19, such as "WARNING", are displayed in front of it in order from the leftmost character to the right. After this display is performed for a certain period of time (for example, 10 seconds), as shown in the order of FIG. 12(a), (b), (c), the animation is gradually changed to a photographic image of the speed measuring device, and when the radar waves are no longer received, the warning window displaying the photographic image is faded out as shown in the order of FIG. 13(a), (b), (c).

The radio warning function is a function that issues a warning when a radio wave emitted by an emergency vehicle or the like is received by the radio receiver 15 so as not to interfere with the driving of the vehicle. In the radio warning function, the frequencies of police radio, car location radio, digital radio, special small radio, station activity radio, police telephone, police activity radio, tow radio, helicopter radio, fire helicopter radio, fire radio, emergency radio, highway radio, security radio, etc. are scanned, and when a radio signal is received at the scanned frequency, a schematic diagram indicating that a radio signal corresponding to the frequency stored in the database 19 for each radio type is received is displayed on the display unit 5 as a warning screen, and audio data stored in the database 19 for each radio type is read out, and an alarm sound indicating the type of radio signal is output from the speaker 20. For example, when a police radio signal is received, a sound such as "This is a police radio. Watch your speed" is output. During the sound output, the alarm lamp 6 is turned on. When a screen other than the map screen is currently displayed as the information display function (including the OFF screen), the sound output process is performed in this manner. On the other hand, if the map screen is currently being displayed as the information display function, the same processing as the radar wave warning function is performed, except that a display indicating that it is a wireless warning is displayed, as shown in part of the changes in Figures 14(a), (b), and (c).

The radar detector of this embodiment has an AUTO display target screen selection function that selects a screen of a format that is to be the target of switching the AUTO display screen. When the AUTO display screen is selected on the display screen selection screen of FIG. 3, the screen of the format that is switched and displayed every minute is only the screen of the format selected by this AUTO display target screen selection function, and screens of a format that are not selected by the AUTO display target screen selection function are not subject to switching display. In the default state, all screens are set in the database 19 as targets for switching display, and as described above, all screens are targets for switching display, but the setting of the target of switching display in this database 19 can be changed by the AUTO display target screen selection function.

The AUTO display target screen selection function starts with a screen transition due to the detection of the following operations. First, regardless of the screen display state, if pressing of the setting button on the remote control 17 or switch unit 3 is detected, the setting screen of FIG. 15 is displayed. In this state, if a touch on the display position of the "Standby" button on the top left is detected by the touch panel of the display unit 5 (hereinafter, the case where a touch on the display position of that button is detected by the touch panel of the display unit 5 is simply referred to as a case where a touch is detected), the standby screen setting screen shown in FIG. 15(b) is displayed. If a touch on the "Auto item" button on the top right is detected on this screen, the auto item setting screen 1/2 shown in FIG. 16(a) is displayed.

This auto item setting screen 1/2 has a screen title display section called "Auto Item 1/2" at the top, and a control button display section at the bottom that has an "EXIT" button, a "BACK" button, a blank space, and a right arrow button in that order from left to right. A switching screen selection button display section is provided between the screen title section and the control button display section. The switching screen selection button display section displays a total of seven toggle buttons, with four buttons on the first row and three buttons on the second row. When a touch to the right arrow button provided on the control button display section is detected, in the OBD2 connected state, the auto item setting screen 2/2 shown in FIG. 16(b) is displayed, and in the OBD2 unconnected state, the auto item setting screen 2/2 shown in FIG. 16(c) is displayed. The auto item setting screen 2/2 also has the same configuration as the auto item setting screen 1/1, and displays a total of six toggle buttons, with four buttons on the first row and two buttons on the second row. The auto item setting screen 2/2 in the OBD2 connected state and the OBD2 unconnected state is the same except that in the OBD2 unconnected state, the fuel consumption screen and the OBD data screen that are not the target of the switching display are displayed in gray and cannot be selected. Hereinafter, an example of the OBD2 connected state will be described. In the control button display section at the bottom of the auto item setting screen 2/2, the right arrow button displayed in the auto item setting screen 1/1 is blanked, and a left arrow button is displayed in the blank area in the auto item setting screen 1/1. When a touch on the left arrow button is detected, the auto item setting screen 1/2 shown in FIG. 16(a) is displayed. In this way, the auto item setting screen 1/2 shown in FIG. 16(a) and the auto item setting screen 2/2 shown in FIG. 16(b) can be switched between each other by the right arrow button and the left arrow button (page switching is possible), and a toggle button for whether or not to switch the 13 items in the auto item setting screen 1/2 and the auto item setting screen 2/2 is displayed. If a touch to the "EXIT" button is detected, the process returns to the process before a touch to a setting button on the remote control 17 or the switch unit 3 was detected. If a touch to the "BACK" button is detected, the process returns to the standby screen setting screen shown in FIG. 15(b), which is the screen that was displayed one screen before. The process when a button on the control button display unit is touched is the same as in the other figures of this embodiment.

The auto item setting screen 1/2 in Figure 16 (a) includes a "Clock" button in the first row, first column for setting whether the clock screen is to be displayed as a switchable screen, a "Speed" button in the second row, second column for setting whether the speed screen is to be displayed as a switchable screen, an "Eco Drive" button in the third row, first column for setting whether the eco drive screen is to be displayed as a switchable screen, an "Acceleration" button in the fourth row, first column for setting whether the acceleration screen is to be displayed as a switchable screen, a "Tilt" button in the first row, second column for setting whether the tilt screen is to be displayed as a switchable screen, a "Tide Information" button in the second row, second column for setting whether the tide information screen is to be displayed as a switchable screen, and a "Graph" button in the third row, second column for setting whether the graph screen is to be displayed as a switchable screen. The auto item setting screen 2/2 in FIG. 16(b) includes a "Preset A" button in the first row, first column for setting whether the preset A screen is to be displayed as a switchable display, a "Preset B" button in the second row, second column for setting whether the preset A screen is to be displayed as a switchable display, a "Preset C" button in the third row, first column for setting whether the preset C screen is to be displayed as a switchable display, a "Positioning Information" button in the fourth row, first column for setting whether the positioning information screen is to be displayed as a switchable display, a "Fuel Efficiency" button in the first row, second column for setting whether the fuel economy screen is to be displayed as a switchable display, and an "OBD Data" button in the second row, second column for setting whether the OBD data screen is to be displayed as a switchable display. The button name is displayed on the surface of each of these buttons. The button name of each button is displayed as the characters enclosed in brackets in the above text. For example, the "Clock" button displays the "Clock" enclosed in brackets as the button name. Each button is a rectangular button of the same size with the long sides in the left-right direction surrounding these characters. A space of a predetermined width is provided between each button to prevent erroneous touching.

An indicator section is provided at the left end of each button, which displays an image of a strip-shaped LED lamp that lights up in green and has a width thinner than the button width, from the top to the bottom of the button. This indicator can be in a lit state or a non-lit state. When a touch is detected at the position of any button on the touch panel of the display section 5, the lit state of the indicator of the touched button is inverted. That is, if the indicator is in a lit state, it is set to a non-lit state, and if the indicator is in a non-lit state, it is set to a lit state. When the indicator is in a lit state, the screen corresponding to that button is set to be subject to switching display, and when the indicator is in a non-lit state, the setting is stored in the database 19 as a setting that the screen corresponding to that button is not subject to switching display. This storage process is performed when there is a change in the lit state of the indicator.
When pressing of the "EXIT" button is detected, if the display of the AUTO screen is selected as shown in Fig. 3(b) above, processing of the AUTO display screen is started, and processing of switching every minute is performed only for the screens stored in the database 19 as targets for switching display. The following description will be given assuming that the display of the AUTO screen is selected as shown in Fig. 3(b).

Figures 16(a) and (b) show an example in which the indicators for all buttons are lit. This state is the default state described above. If a touch on the "EXIT" button is detected in this state, all screens will be subject to switching display. That is, the screens of each format will be switched to and displayed every minute in the following order: clock screen, speed screen, eco-driving screen, acceleration screen, incline screen, tide information screen, graph screen, preset A screen, preset B screen, preset C screen, positioning information screen, fuel consumption screen, and OBD data screen (each screen is displayed for one minute before switching to the screen of the next format, and so on). After displaying the OBD data screen for one minute, it will return to the clock screen, and switching displays will continue in the same manner thereafter.

17(a) shows an example in which the indicator of the "clock" button on the auto item setting screen 1/2 is not lit and the indicators of the other buttons are lit. In the auto item setting screen 2/2, as shown in FIG. 16(b), all the button indicators are lit. In this state, if a touch on the "EXIT" button is detected, all screens except the clock screen are subject to switching display. That is, the screens of each format are switched every minute in the order of speed screen, eco drive screen, acceleration screen, inclination screen, tide information screen, graph screen, preset A screen, preset B screen, preset C screen, positioning information screen, fuel consumption screen, and OBD data screen. After displaying the OBD data screen for one minute, the screen returns to the speed screen, and switching display is performed in the same manner thereafter. Since the clock is displayed in the upper right corner of the screen of each format, a user who does not think it is necessary to switch the display can touch and set each button so that the indicator is in this state, so that the clock screen is not switched.

Figure 17(b) shows an example in which the indicators of the "Clock" button and the "Tide Information" button are not lit, and the indicators of the other buttons are lit. Assume that the indicators of all buttons are lit on the auto item setting screen 2/2, as shown in Figure 16(b). In this state, if a touch on the "EXIT" button is detected, all screens except the clock screen and the tide information screen are subject to switching display. That is, the screens of each format are switched every minute in the order of the speed screen, eco-driving screen, acceleration screen, inclination screen, graph screen, preset A screen, preset B screen, preset C screen, positioning information screen, fuel consumption screen, and OBD data screen. After displaying the OBD data screen for one minute, it returns to the speed screen, and switching display is performed in the same manner thereafter. The clock screen and the tide information screen mainly depend only on the date and time, and do not change in real time as the vehicle travels. Therefore, a user who wants to know the current real-time status that changes as the vehicle travels can touch and set each button to this indicator state, preventing the display from switching between the clock screen and the tide information screen, and allowing the display to switch between only the screen format that shows the current real-time status that changes as the vehicle travels.

Figure 17(c) is an example in which the indicators of all seven buttons on the auto item setting screen 1/2 are in a non-illuminated state. As shown in Figure 18(a) , the indicators of the "Preset A" button, "Preset B" button, and "Preset C" button are in a lit state on the auto item setting screen 2/2, and the indicators of the "Positioning Information" button, "Fuel Efficiency" button, and "OBD Data" button are in a non-illuminated state. In this state, if a touch on the "EXIT" button is detected, the screens of each format are switched every minute in the order of the preset A screen, the preset B screen, and the preset C screen. After displaying the preset C screen for one minute, the screen returns to the preset A screen, and the screens are switched in the same manner thereafter. In this way, the user can repeatedly display three types of triple meters preset by the user, and can prevent screens of other formats from being displayed. By reducing the number of screens to be selected in this way, the time required for one repeated display (in this example, the time required for one repeated display is three minutes) can be shortened. Also, for example, if the meters on these three preset screens are all set to different types of meters, a total of nine types of meters can be checked in three minutes.

Next, the setting process for each meter displayed on the preset A screen, preset B screen, and preset C screen will be described. This setting process begins with a screen transition due to the detection of the following operations. As described above, first, regardless of the screen display state, if pressing of the setting button on the remote control 17 or switch unit 3 is detected, the setting screen of FIG. 15 is displayed. In this state, if a touch is detected on the "Standby" button on the top left, the standby screen setting screen shown in FIG. 15(b) is displayed. On this screen, if a touch is detected on either the "Preset A", "Preset B", or "Preset C" button in the second row, the preset meter setting screen for that preset is displayed. Here, an example will be described in which the "Preset A" button is touched. The same process is performed when the "Preset B" or "Preset C" button is touched.

When the "Preset A" button is touched, a preset meter setting screen as shown in FIG. 19(a) is displayed. The preset meter setting screen, like the auto item setting screen, has a screen title display section called "Preset A" at the top, a control button display section with an "EXIT" button and a "BACK" button in order from left to right at the bottom, and a meter setting button display section with three meter setting buttons arranged at positions corresponding to the left position meter, center position meter, and right position meter in FIG. 7(a) between the screen title section and the control button display section. That is, the meter setting button display section has a left position meter setting button arranged at the lower left position for setting the type of the left position meter, a center position meter setting button arranged at the upper center position for setting the type of the center position meter, and a right position meter setting button arranged at the lower right position for setting the type of the right position meter. A character string indicating the type of the meter currently set is displayed on each button. In the default state, for the preset A screen, the left position meter is set to the clock, the center position meter is set to the vehicle speed, and the right position meter is set to eco-drive, as shown in FIG. 19(a). In this state, the example of the preset A screen displayed is shown in Figure 7(a). That is, according to the settings of each meter setting button, the left meter displays the clock, the center meter displays the vehicle speed, and the right meter displays eco-driving.

The default settings for the preset B screen are as follows: the left meter is the clock, the center meter is the acceleration, and the right meter is the vehicle speed, with an example display as shown in Figure 7(b). The default settings for the preset C screen are as follows: the left meter is the compass, the center meter is the inclination, and the right meter is the tide information, with an example display as shown in Figure 7(c).

In the display state shown in FIG. 19(a), the process of changing the type of the center meter from vehicle speed to acceleration as shown in FIG. 19(b) will be described. The same process is used to change the meter type for the left and right meters.

When a touch on the middle meter setting button is detected, the meter type selection screen shown in Figure 20(a) is displayed. The meter type selection screen has a control button display section on the right side with a back button, blank space, up arrow button, and down arrow button from the top, and four meter type buttons on the left side in the vertical direction. As shown in Figure 20(a), the currently set meter type is displayed second from the top. Since the setting for the middle meter setting button in Figure 19(a) is "vehicle speed", "vehicle speed" is displayed in the second meter type button from the top, and this meter type button is highlighted to indicate that it is the currently selected state.

In this state, if a touch on the down arrow button is detected, the display shown in FIG. 19(b) is displayed. That is, the meter type button displayed second from the top is moved to the top, the meter type button displayed third from the top is moved to the second from the top, the meter type button displayed fourth from the top (bottom) is moved to the third from the top, and the meter type button newly set in the next order is displayed fourth from the top (bottom). As a result, in this example, the meter type button for the vehicle speed has moved to the top as shown in FIG. 20(b). FIG. 20(c) shows an example of the display when the touch on the down arrow button is detected three more times from the state shown in FIG. 20(c). FIG. 21(a) shows an example of the display when the touch on the down arrow button is detected three more times from the state shown in FIG. 21(a). FIG. 21(b) shows an example of the display when the touch on the down arrow button is detected three more times from the state shown in FIG. 21(b). FIG. 21(c) shows an example of the display when the touch on the down arrow button is detected three more times from the state shown in FIG. 21(b). FIG. 22(a) shows an example of the display when the down arrow button is detected being touched three more times from the state of FIG. 21(c). FIG. 22(b) shows an example of the display when the down arrow button is detected being touched three more times from the state of FIG. 22(a). FIG. 22(c) shows an example of the display when the down arrow button is detected being touched several more times from the state of FIG. 22(b). The display state of FIG. 22(c) is the same as the display state of FIG. 20(a). In this way, by cyclically scrolling the meter type buttons, options for the settable meter types are presented.

As shown in Figures 20(a) and 20(b), when a touch is detected at the position of the meter type button for acceleration as a meter type button, the highlight is moved to the meter type button for acceleration that is the touched button, and the setting of the type of the middle meter in preset A of database 19 is changed to "acceleration" and stored. When a touch is detected on the back button in this state, the display on the middle meter setting button is changed to this "acceleration" as shown in Figure 19(b). When the screen of preset A is displayed with this setting, as shown in Figure 23, the middle meter becomes the "acceleration" meter as shown in Figure 23.
In this way, the user can set what type of meter should be used for each position on each preset screen.

In this way, when the AUTO display setting is selected and a preset screen is selected as the target for switching display, the preset screen set by the user in this way can be the target for switching display.

The radar detector, which is an example of the control system according to the present invention, is a control system that controls the display of different formats of screens displaying information about the current situation at predetermined time intervals, such as one minute intervals, in a predetermined order as described above. The system is equipped with a selection function that allows the user to select the screen format to be displayed, and the screen area of the format selected by the selection function is the target of the display. Therefore, the screen of the format required by the user can be displayed. Information about the current situation, such as the current time, the current date, the current location, and information about the current situation of the vehicle in which the display unit displayed by the control system is installed, are displayed. In addition to or instead of these, a screen of a format that acquires and displays the current situation of the person viewing the display of the system, such as the driver himself, may be provided. The current situation may be, for example, the situation at this very moment, but in this embodiment, for example, the position information is output from the GPS receiver 8 every second, so the situation from the past is displayed within a range of up to about one second. The vehicle information acquired via the OBD2 connector is also acquired at 0.5 second intervals, so the situation from the past is displayed within a range of up to about one second. Depending on the type and nature of the information to be displayed, information about the current situation may be a past situation close enough to the present that the user can recognize it as the current situation.

As described above, in this embodiment, the predetermined order is the order displayed on the setting screen, etc. However, instead of a fixed, predetermined order, the order may be set by the user, or may be a random order.

In this embodiment, the specified time interval is a fixed, predetermined time interval such as one minute, but it may be a variable time interval depending on the status of the acquired information. The specified time interval may also be a time interval set by the user on a settings screen or the like. For example, the time from displaying the screen in the first format to switching to displaying the screen in the second format and the time from displaying the screen in the second format to switching to displaying the screen in the third format may be the same or different.

The switching display of this embodiment is configured to rewrite the current screen area to the next screen area in the time between frames. In other words, the current screen and the next screen are displayed as if they were switched abruptly. However, when rewriting, a predetermined switching effect display may be performed, for example, by gradually scrolling out the screen area while scrolling in another screen area, or by fading in and out in a similar manner.

In this embodiment, the information about the current situation is provided with multiple different pieces of information acquired about the moving object, and multiple triple-meter format screens are provided, such as preset A, preset B, and preset C, which simultaneously display the multiple different pieces of information as screens with different formats. Therefore, the multiple different pieces of information acquired about the moving object change as the moving object moves, and these changes can be grasped simultaneously by looking at the triple-meter format screen that simultaneously displays the multiple different pieces of information. Furthermore, since multiple triple-meter format screens that simultaneously display such multiple different pieces of information are provided, and the display function of the AUTO screen controls the display to switch between them in a predetermined order at predetermined time intervals, it is possible to grasp, for example, a large amount of information that changes as the moving object moves in a short period of time.

In this embodiment, the moving object is a vehicle, but it may also be, for example, a person. In the case of a person, physiological phenomena such as the person's heart rate and body temperature may be sensed and acquired, and the person's position and surrounding conditions may be sensed and acquired.

In the auto item setting screen, as shown in Fig. 16(a) and (b), the indicators of all buttons are set to be lit. In this way, the selection function is configured so that in the default state, all selectable format screens are subject to switching display, and the user can select a format screen that is not subject to switching display by touching it. Therefore, in the default state, all selectable format screens are switched display in a predetermined order at predetermined time intervals. This allows the user to know all the formats of screens that can be selected with this radar detector. Then, for example, after using it in this state for a while, the user can select a format screen that is not necessary for the user as a format screen that is not subject to switching display, as described above, and can switch display only the formats of the screen that is necessary for the user.

In the auto item setting screen, as shown in FIG. 16, the characters representing the screen of each format are displayed on the button to allow the user to select it. Therefore, it is preferable to display the characters displayed on the button when switching between the screens. For example, when switching to the speed screen as shown in FIG. 5(a), a horizontal strip-shaped telop area is displayed at the top as shown in FIG. 24, and the characters on the button "speed" are displayed within the telop area. This display is displayed for 3 seconds from the time of switching and then erased. In this way, it is easy to determine which screen to select when executing the selection function by looking at the display of information representing the screen of each format (in this example, the telop displayed for a certain period of time when the screen is switched), and when the screen is switched to, it is possible to check that the information representing the screen of the format is properly set. The information representing the screen of each format may be, for example, a character string of the name given to each screen, a thumbnail screen of each screen in a reduced size, or an illustration or icon showing the content of each screen. When the information representing the screen of this format is switched, it is displayed within the screen of that format and is erased when a predetermined time has passed since the switching. The predetermined time until the erasure is three seconds, which is shorter than the predetermined time of one minute from the display of the screen of that format to switching to a screen of another format. In this way, the information representing the screen of that format is displayed within the screen of that format for a predetermined time and then erased. After that, the screen of that format is displayed without the information representing the screen of that format being displayed, and then the screen is switched to a screen of another format. Therefore, when the screen is switched, it is possible to know what information the screen of that format displays from the information representing the screen of that format, and further, when this knowledge is obtained, the information representing the screen of that format can be erased, and a display in a predetermined format using the entire screen can be performed.

Furthermore, as at least one of the format screens selectable on the auto item setting screen, a format screen that controls switching display of a predetermined display area in the format screen at a predetermined time interval may be provided. The predetermined time interval for switching display from the format screen to another format screen may be longer than the predetermined time interval for switching display of a predetermined display area in the format screen (1 minute as described above in this embodiment). For example, when the tide information meter shown in the right position meter of the preset screen in FIG. 25 is used as the predetermined display area, and when this preset screen is switched to, a tide information meter that displays the place name of the tide observation station closest to the current position, the moon age of the current date, and the tide name as shown in FIG. 25(a) is displayed. Then, after 10 seconds have passed, a tide information meter that displays the time and tide level of the first low tide of the day and the time and tide level of the first high tide of the day as shown in FIG. 25(b) is displayed. Then, when 10 seconds have passed since the tide information meter shown in Fig. 25(b) was displayed, a tide information meter that displays the time and tide level of the second low tide of the day and the time and tide level of the high tide is displayed as shown in Fig. 25(c). Then, when 10 seconds have passed since the tide information meter shown in Fig. 25(c) was displayed, the display returns to the tide information meter shown in Fig. 25(a). Then, the tide information meter on the screen of Fig. 25(a) is displayed again for 10 seconds, and the display switches to the tide information meter on the screen of Fig. 25(b), and then the tide information meter on the screen of Fig. 25(b) is displayed for 10 seconds, and the display switches to the tide information meter on the screen of Fig. 25(c). Then, when the tide information meter on the screen of Fig. 25(c) is displayed for 10 seconds, one minute has passed since the display switched to this preset screen, and the display switches to the screen of the next format. In this way, the contents of the tide information meter, which is a predetermined display area in the screen of the format, are switched and displayed at a time interval (10 seconds in this embodiment) shorter than the time interval (1 minute in this embodiment) between the display of the screen of the format and the switching to the screen of another format. Therefore, the screen of the format is not switched to the screen of another format without the switching display of the predetermined display area (the tide information meter in this example) in the screen of the format being performed at all. Therefore, by the switching display of the predetermined display area in the screen of the format and the switching display of the screen of the format itself, it is possible to visually confirm a large amount of information in a short time. In addition, this information can be confirmed without waiting for the rotation of the notice of the switching display. For example, when the tide information screen of the day shown in FIG. 25 is displayed, the screen shown in FIG. 26 is displayed, but the contents can be confirmed by switching the display of the contents of the tide information meter in a narrower area, and all the contents can be confirmed within the display time (1 minute) of the preset display screen without waiting for the next preset screen to be displayed. In addition, on days when there is no second low tide time or high tide time, the field may be left blank or the meter display may be skipped.

In this embodiment, a graph screen as shown in FIG. 6(c) is provided as at least one of the screens of a format selectable on the auto item setting screen. A screen of a format that allows the current situation to be understood by comparing the current situation with a past situation, like this graph screen, is provided, and the specified time interval for switching the display from the screen of that format to a screen of another format is preferably set to a time interval that allows the current situation to be understood by comparing the current situation with a past situation. The graph screen has a display time of one minute, and the current situation can be understood by comparing the current situation with a past situation. In this way, it becomes possible to visually compare the current situation with a past situation before the screen of the currently displayed format switches to a screen of another format.

In this embodiment, when a screen other than the map screen is currently displayed as the information display function, if an alarm is issued by the GPS alarm function, the radar wave alarm function, or the wireless alarm function, a process of outputting sound is performed. However, while the alarm sound is being output, the screen may be switched to the map screen and an alarm may be issued by an alarm window or the like similar to the alarm when the map screen is displayed. In this case, it is preferable that the screen format selectable on the AUTO item setting screen does not include the map screen. In this way, while the function of switching between screens of different formats at a predetermined time interval in a predetermined order is being executed, an event screen display switching function is provided that switches to a screen notifying the occurrence of the event when a predetermined event (an alarm in this embodiment) occurs, and a screen of the same format as the screen notifying the occurrence of the event is not provided as a screen of the format selectable for switching display. In this way, the screen of the same format as the screen notifying the occurrence of the event is not switched and displayed at a predetermined time interval in a predetermined order by the display function of the AUTO screen, so that the user can be sure that an event has occurred, and there is no risk of mistaking the screen that is switched and displayed at a predetermined time interval in a predetermined order as the screen of the occurrence of the event.

In this embodiment, the display unit 5 is provided with a touch panel, but the display unit 5 may be provided with only the remote control 17 or the switch unit 3. For example, the selection target may be indicated by moving the focus frame in response to detection of button operation, and when the press of the decision button is detected, the item with the focus frame may be stored in the database 19 as the selected item, and the stored item may be referred to for screen switching processing. For example, in the standby screen setting screen shown in FIG. 15(b), when the focus frame is moved in response to detection of pressing of the up, down, left, right, and right buttons of the remote control and the focus frame is on "Auto Item" at the top right end and the press of the decision button of the remote control 17 is detected, the auto item setting screen 1/2 shown in FIG. 16(a) is displayed. When the focus frame is on any button in the second row and the press of the down button is detected, or when the focus frame is on the "Graph" button in the second row and the third column and the press of the right button is detected, the auto item setting screen 2/2 shown in FIG. 16(b) is displayed. The auto item setting screen 2/2 also displays a total of seven toggle buttons, four buttons on the first row and three buttons on the second row. When the focus frame is on any button in the first row of the auto item setting screen 2/2 and the up button is pressed, or when the focus frame is on the "Preset A" button in the first row and first column and the right button is pressed, the auto item setting screen 2/2 shown in FIG. 16(a) is displayed. When the decision button is pressed, the item with the focus frame is stored in the database 19 as the selected item, and the stored item is referenced to perform screen switching processing, etc.

The type of current information is not limited to the example in this embodiment. For example, a three-axis gyro sensor similar to the acceleration sensor 27 may be provided to display the current state of the angular velocity acting on the vehicle, or the information may be obtained from various other sensors or communication means.

In addition, although the present embodiment has been described with the example of a radar detector, it can be implemented as a function of various electronic devices. For example, it may be incorporated as a function of a navigation device, a drive recorder, or a car audio device. The numerical values described in this embodiment may be changed to values that are effective as appropriate through experiments, etc. The screen size of the display unit 5 may also be arbitrary. The control unit 18 may also be provided with a function for setting the priority of each function and alarm based on instructions from the user via the remote control 17, etc., and the control unit 18 may be configured to perform processing according to this set priority.

Furthermore, in the above-described embodiment, the device is provided with a database 19 that stores various information, and the control unit 18 accesses the database 19 to read out the necessary information and perform various processes, but the present invention is not limited to this. For example, some or all of the information to be registered in the database 19 may be registered in a server. The radar detector and other electronic devices and devices may then have a function for communicating with the server, and the control unit 18 may access the server as appropriate, obtain the necessary information, and execute the processes. Furthermore, the system may be such that at least some of the functions of the control unit 18 are stored in the server, the functions are executed by the server, and the electronic device held by the user obtains the results of the execution.

The functions of the control system in the above-described embodiment are configured as a program to be implemented by a computer provided in the control unit 18, but the program may also be distributed among multiple computers for distributed processing.

LIST OF REFERENCE NUMERALS 1 Case body 2 Solar panel 3 Switch section 4 Microwave receiver 5 Display section 6 Lamp 7 Infrared communication device 8 GPS receiver 9 Adapter jack 10 Power switch 12 Mobile phone 13 Memory card reader 14 Memory card 15 Wireless receiver 16 Remote control receiver 17 Remote control 18 Control section 19 Database 20 Speaker 22 Connection cable 23 Connector terminal 24 Socket 25 Connector terminal 27 Acceleration sensor 28 Geomagnetic sensor 33 Base

Claims (7)

A function to switch between different formats of screens, each of which displays information about the current situation, over time;
a function of allowing a user to select a screen of a format to be switched and displayed;
The function of switching the display is
an electronic device which switches the display of a screen of a format selected by said selection function at a timing appropriate to a current situation. The electronic device according to claim 1, wherein the timing according to the current situation is a timing according to a user setting. The electronic device according to claim 1 or 2, wherein the screens of different formats include a screen that displays information about a vehicle. The electronic device according to any one of claims 1 to 3, wherein the selection function varies the screen that the user can select depending on whether or not the device is connected to a vehicle-side connector. The electronic device according to any one of claims 1 to 4, wherein the function of switching the display switches the display at a timing according to the vehicle speed as the current situation. The electronic device according to any one of claims 1 to 5, wherein the screens of different formats include a screen that displays the time. A program for causing a computer to realize the functions of the electronic device according to any one of claims 1 to 6.