JP5389556B2 - Navigation device and display control method - Google Patents

Description

  The present invention relates to a display control technique in a navigation device mounted on a golf cart at a golf course.

  Conventionally, golf carts can be manually driven manually or automatically driven by electromagnetic induction. The manual type is a method that allows a golf cart to be driven by a user's operation, and the electromagnetic induction type is a method that automatically runs on a guide line embedded in a traveling road.

  In such a system, data necessary for detecting the running position of the golf cart in the golf course is provided by a cart navigation having a GPS (Global Positioning System) mounted on the golf cart. . In cart navigation, the latitude and longitude can be calculated at the base station, and the position of the golf cart can be displayed as a course map.

  In addition, by managing the operation of the golf cart in the golf course with the management station, the golf station can share the necessary information in the golf course and can communicate with the user wirelessly etc. . Furthermore, in the system using the golf cart as described above, various services can be provided by mounting a display on the golf cart, and the service contents are diversifying.

  As related technology, Patent Document 1 discloses an operation management system for an automatic transport cart of a golf course. This system drives a pile with a built-in data carrier in which the route information of the automatic transport cart is stored in advance for each point on the route of the automatic transport cart on the golf course. The carrier data is read and moved in the golf course accordingly. In Patent Document 1, the location of the automatic transport cart can be detected based on the start point of each hole.

  In Patent Document 2, a golf course communication system is shown. This system is installed in a golf course having a plurality of wireless access points arranged in or near the outer periphery, and provides support for various types of subscriber communication and communication regarding infrastructure information of the golf course. is there.

  On the other hand, in a navigation device mounted on a golf cart, information that is helpful for playing is provided to a player through a display device constituted by a display LCD or LED. Always turning on the display device is not usually done because it increases power consumption and shortens the life of the device. In general, the display device should be turned off when it is considered that the display will not be used. I have to. When the display is turned off, the display data is not erased, the data signal is always output, and the display backlight is controlled to be turned on / off. Turning off the backlight contributes to reducing power consumption. Also in the case of the LED, the data signal is always in an output state, and ON / OFF of the power supply for lighting is controlled. Of course, the display data can be erased.

The following two methods are known as display control methods for display devices of navigation devices mounted on golf carts.
The first method is an auto power off method. In this system, the display is turned on (started) when an operation is performed on a switch or key attached to the apparatus, and the display is turned off when there is no operation continuously for a certain time (for example, 30 seconds).

  The second method is a human sensor method. In this method, when a person approaches, for example, within a certain distance by a person sensor, the person's heat is sensed, and when a signal corresponding to the person's heat is detected, the display is turned on (started), and for a certain period of time ( (For example, 30 seconds to 60 seconds) If the state where the signal corresponding to the person's heat is not detected continues, the display is turned off. In order to prevent an error in the detection signal, it is confirmed that a state in which no signal is detected continues. When the display is turned on, there is no practical problem even if the influence of the detection signal error is not taken into consideration.

JP-A-8-286743 Special table 2007-525117 gazette

  It is an object of the present invention to provide a navigation device and a display control method mounted on a golf cart that can more efficiently reduce the power consumption of the device without affecting the information provision to the player. And

  The proposed navigation device is a navigation device mounted on a golf cart, and it provides a GPS device that receives GPS data at regular intervals, a human sensor that senses human heat, and information that can be referenced during play. When a display device and a signal corresponding to human heat are detected, the display of the display device is turned on, and a signal corresponding to the human heat continues to be detected for a certain period of time. Sometimes, a display control unit that performs control to turn off the display of the display device, and an area calculation unit that calculates the current area in the course using the position of the own cart calculated from the received GPS data, And the display control unit changes the length of the predetermined time for turning off the display according to the type of the area currently calculated by the area calculation unit. It is.

  For example, when the current area is a green area, the display control unit makes the length of the predetermined time for turning off the display shorter than other areas.

  According to the proposed navigation device, the display control unit changes the length of the fixed time for turning off the display according to the type of the area currently calculated by the area calculation unit. For example, when the current area is a green area, the display control unit makes the length of a certain time for turning off the display shorter than other areas.

  In this way, in areas where it is unlikely that the player is close to the golf cart due to the player's behavior pattern, the lights are turned off for as long as possible, so that the power consumption of the device is not affected without affecting the information provided to the player. The amount can be reduced more efficiently.

It is a block diagram which shows the structure of the golf cart control system which concerns on one Embodiment of this invention. It is a figure which shows the data structure of the embedding information which embedded surveying data in the map data of a golf course. It is a figure which shows the embedding information displayed on the screen. It is an external appearance front view of a cart navigation device. It is a block diagram which shows the structure of the principal part of a navigation apparatus. It is a figure which shows the data structure of continuation time threshold value information without a sensor detection for every area. It is a flowchart of the display control process of this embodiment.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. This application uses Japanese Patent Application No. 2005-28311.
FIG. 1 is a block diagram showing a configuration of a golf cart control system according to an embodiment of the present invention. This system receives and processes signals from external GPS satellites 7 and 17.

As shown in FIG. 1, the golf cart control system includes a base station side and a mobile station (golf cart) side that moves within the golf course.
A mobile station (golf cart) 1 includes a mobile station device 2, a wireless device 3, an output device (display device, speaker, printer, etc.) 4, a GPS device 5, a GPS antenna 6, a cart control unit 8, a wireless LAN device 9, The antennas 10 and 11 are configured.

  Normally, the golf cart travels on a guide line provided in the golf course during automatic travel, but when switched to manual travel, places other than on the guide line can also be moved by the driver's driving.

  The base station and the mobile station (golf cart) communicate with each other via the wireless device 3 and the antenna 11 (at a time other than the start of the day or the start of play). The driver of the golf cart can communicate with the base station wirelessly using an input device (not shown in FIG. 1) such as a microphone.

  The GPS device 5 performs position measurement based on a signal from the GPS satellite 7 in order to measure the position information of the golf cart 1. It is also possible to further improve the accuracy by correcting the position measurement error by using a radio wave such as FM broadcast transmitted by a base station (reference station) whose position is known.

  The cart control unit 8 acquires a golf cart automatic / manual switch control signal, a brake control signal, a handle control signal, a motor control signal, a battery monitoring signal, a bumper switch signal, a main switch signal, etc., and controls the golf cart. . The automatic / manual switch control signal is used to receive a control signal transmitted by radio from the management station on the golf cart side and to switch the driving mode (automatic / manual) based on the content of the received signal. Used for.

  The mobile station device 2 obtains information received from the base station through the wireless device 3, the cart control unit 8, or the wireless LAN device 9, or information on the own cart, or obtains position information of the own cart through the GPS device 5. In addition, operation control and communication control of golf carts are performed. Note that (a large amount) of information is exchanged with the base station via the wireless LAN device 9 and the antenna 10 at the start of the day or the start of play.

The output device 4 acquires information, position information, and the like from the base station through the mobile station device 2, converts the information into a necessary form (image data, audio data, etc.), and outputs it.
In FIG. 1, the base station (management station) side includes a base station device 12, a wireless device 13, an output device (display device, speaker, printer, etc.) 14, a D-GPS device (Differential GPS) 15, a GPS antenna. 16, a wireless LAN device 18, antennas 19 and 20, a LAN device 21, and a front system 22.

  The base station and the mobile station (golf cart 1) communicate (via a time other than the start of the day or the start of play) via the wireless device 13 and the antenna 20 to exchange voice and data. For example, D-GPS correction data is transmitted to the golf cart 1 via the wireless device 13 and the antenna 20 using a frequency of about 300 MHz to 400 MHz, such as commercial radio, and the position information corrected from the golf cart 1 is used. Reception is performed via the wireless device 13 and the antenna 20.

  The D-GPS device 15 receives a signal from the GPS satellite 17 via the GPS antenna 16, and uses a radio wave such as an FM broadcast transmitted from a base station (reference station) whose position is known to obtain a measurement result. The GPS measurement is performed by correcting the error, and the difference between the actual position and the position calculated by the GPS is transmitted by terrestrial waves such as FM broadcast, thereby correcting the result measured by the signal from the GPS satellite 17 To do.

  The base station device 12 obtains information from the mobile station (golf cart) through the wireless device 13 or the wireless LAN device 18, or obtains information for correcting the result measured through the D-GPS device 15, Information necessary for employees to manage golf courses is controlled. Note that (a large amount) of information is exchanged with the mobile station (golf cart) via the wireless LAN device 18 and the antenna 19 at the start of the day or the start of play.

The output device 14 includes a display device (not shown in FIG. 1) that displays information such as a map of the entire golf course, a green diagram, a capture method, and weather information.
The LAN device 21 communicates with the front system 22 installed at the front of the golf course, and acquires data input by the front system 22.

  In advance, survey is performed at each map point in the golf course, and survey data of each map point is actually measured. Then, embedded information is created by embedding the measured survey data in the map data of the golf course.

The data structure of the embedded information is shown in FIG.
As shown in FIG. 2, the embedded information 24 includes “Hall ID”, “Area number”, “Area name”, “Latitude”, “Longitude”, “Area classification”, “Blind area”, “Blind OK”, Each item includes “blind NG”, “DOP (Dilution of Precision) value”, “area effective radius”, “standard elapsed time”, “evacuation destination ID”, and “traveling direction”.

  Enter the hole number in “Hall ID”. For example, if the first hole, enter “1”. In the “area number”, the map point number (Pt) for each hole is input. It is also possible to give the name of the area to the “area name”. In the “longitude” and “latitude”, data measured by GPS is input for each Pt.

  The area on the course corresponding to the point number is assigned to “area classification (also referred to as“ area information ”). Areas include the area before entering the course (B), front interval (Ib), green (G), tee (T), rear interval (Ia), fairway 1 (F1), fairway 2 (F2), course There is an area (A) after leaving. In FIG. 2, these eight sections are identified by integers.

In the “blind area”, the blind setting is set to 0 or 1. In this example, “0” is not blind, and “1” is blind.
The safety distance from the golf cart in front when the map point is blind (OK) and when there is no blind (NG) is set to “blind OK” and “blind NG”, respectively.

  “DOP value” sets the accuracy of GPS. The altitude measurement by GPS may be inaccurate due to the arrangement of satellites. Therefore, approximate accuracy is calculated from the arrangement state of the satellite, and the accuracy of the measured value is compared with the value set by the DOP value as the adoption condition to determine whether there is reliability. For example, the vicinity of the set DOP value is set to ± 10% or the like, and a threshold is set in this range to determine whether there is reliability. In addition, reliability is improved by setting 20 m or the like as the area effective range in FIG. Further, a general traveling azimuth is measured, compared with the traveling azimuth (0 to 359 degrees) in the figure, and based on the result, the adoption condition of the traveling azimuth is set to “traveling azimuth”. Also, in order to manage the play time at the map point, the standard elapsed time from the start time is set to “standard elapsed time”.

  Note that the embedded information in FIG. 2 actually has data of the display position of each map point on the screen, so that the embedded information is displayed on the terminal on the base station side as shown in FIG. Can be displayed on the department. Further, before the play, the embedded information is transmitted from the base station to the golf cart side, so that the embedded information can be displayed on the display unit of the navigation device mounted on the golf cart as shown in FIG. it can.

Then, the display control method of the display apparatus in the navigation apparatus mounted in a golf cart is demonstrated.
FIG. 4 is a diagram illustrating an appearance of the navigation device. As shown in FIG. 4, the navigation device 25 includes a human sensor 26 that detects human heat in the upper right portion thereof. The human sensor may be provided at a position on the casing of the navigation device 25 other than the above, or at an external position connected to the navigation device 25 through a signal line.

FIG. 5 is a block diagram showing a configuration of a main part of the navigation device.
As shown in FIG. 5, this main part has a display 32 and a backlight 33, and displays a display device 31, a backlight lighting circuit 34, a human sensor 35, a display for providing the player with reference information during play, The GPS device 36, the embedded information 24 received from the base station before the start of play, the per-area sensor non-detection duration threshold information 38, and the mobile station device 40 are configured. The GPS device 36 and the mobile station device 40 correspond to the GPS device 5 and the mobile station device 2 in FIG. 1, respectively, and the display device 31 shows one function of the output device 4 in FIG.

The backlight lighting circuit 34 controls turning on / off of the backlight.
The human sensor 35 is a sensor that detects human heat.
The GPS device 36 receives GPS data at regular intervals (for example, 1 second).

  When the mobile station device 40 detects a signal corresponding to human heat from the human sensor 35, the mobile station device 40 turns on the backlight 33 of the display device 31 through the backlight lighting circuit 34 and continues from the human sensor 35 for a certain period of time. A display control unit 44 that controls to turn off the backlight 33 of the display device 31 through the backlight lighting circuit 34 when a signal corresponding to human heat is not detected, and GPS data received through the GPS device 36 And the point calculation unit 41 for calculating the map point corresponding to the position of the own cart from the embedded information 24, the map point of the own cart calculated by the point calculation unit 41, and the embedded information 24. An area calculation unit 42 for calculating the current area, and a non-detection duration threshold information 38 for each area. Irradiation to have a threshold acquiring unit 43 which acquires a sensor detects absence duration threshold, and outputs to the display control unit 44 corresponding to the area where the area calculation unit 42 has calculated, the.

  A player's playing behavior on a golf course is characterized for each area in the course. If this behavior pattern is analyzed and combined with a human sensor signal, more efficient display control can be performed.

A golf cart runs on a predetermined course of a golf course. The area where golf carts run is divided into tees, fairways, greens, and intervals.
In the tee area, the player acts near the tee ground or cart.

In the fairway area, players act near the fairway, rough or cart.
In the green area, players act on and around the green.
In the interval area, the player is mainly in the cart.

  That is, it is found from the action pattern that the display (backlight) of the display device may be turned off in an area where the player is not near the golf cart. Especially in the green area, the cart cannot get close to the green. And since the player is hitting the ball with a putter on the green, the display of the navigation device cannot be seen, and it is not necessary to see. Even if the display on the display device is turned off only during the puttering time, it does not affect the provision of information to the player.

That is, the display on the display device is unconditionally turned off when entering the green area, and the unconditional turn-off of the display on the display device is released when leaving the green area.
Alternatively, when entering the green area, the duration threshold value in the absence of detection of the sensor signal of the human sensor is shortened (10 to 30 seconds) and turned off, and the duration threshold value in other areas (30 to 60 seconds) A shorter value may be set. FIG. 6 shows the sensor-free duration threshold information 38 for each area when the duration threshold of the sensor signal detection state of the human sensor is “20 seconds” in the green area and “40 seconds” in the other areas. The data structure is shown.

FIG. 7 is a flowchart of the display control process of the present embodiment. The processing of this flowchart is activated and executed at predetermined intervals (for example, 1 second).
In step S21 of FIG. 7, the GPS data is received by the GPS device 36, and in step S22, the point calculation unit 41 calculates a map point corresponding to the position of the own cart from the received GPS data and the embedded information 24. Calculated. That is, the map point (area number) in the embedded information 24 closest to the received GPS data is obtained.

  In step S23, the area calculation unit 42 obtains area information (area classification) corresponding to the map point calculated in step S22 in the embedded information 24. That is, the current area of the cart is calculated.

  Then, in the subsequent step S24, the duration threshold of the sensor signal non-detection state for each area stored in the area-by-area sensor non-detection duration threshold information 38 is set to the area corresponding to the current location (the area obtained in step S23). Information) is searched for as a key, a duration threshold value corresponding to the found area is acquired as a duration threshold value corresponding to the current area, and is output to the display control unit 44.

  Subsequently, in step S25, the display control unit 44 determines whether or not the actual duration of the detection state of the sensor signal of the human sensor 35 counted by a timer (not shown) is equal to or greater than the threshold obtained in step S24. Determined.

  If it is determined in step S25 that the actual duration of the non-detection state is equal to or greater than the threshold value, in step S26, the display control unit 44 turns off the backlight (if the backlight is turned on at that time). Or, if the backlight is turned off at that time, the light-off state is continued. Then, a series of processing ends.

  If it is determined in step S25 that the actual duration of the non-detection state is smaller than the threshold, the display control unit 44 turns on the backlight (if the backlight is turned off at that time) in step S27, Alternatively, the lighting state is continued (if the backlight is turned on at that time). Then, a series of processing ends.

1 Mobile station (golf cart)
2 Mobile station device 3, 13 Wireless device 4, 14 Output device 5 GPS device 6, 16 GPS antenna 7, 17 GPS satellite 8 Cart control unit 9, 18 Wireless LAN device 10, 11, 19, 20 Antenna 12 Base station device 15 D-GPS device 21 LAN device 22 Front system 24 Embedded information 25 Navigation device 31 Display device 32 Display 33 Backlight 34 Backlight lighting circuit 35, 26 Human sensor 36 GPS device 38 No-sensor-detected duration threshold information 40 Mobile station Device 41 Point calculation unit 42 Area calculation unit 43 Threshold acquisition unit 44 Display control unit

Claims (5)

In a navigation device mounted on a golf cart,
A GPS device that receives GPS data at regular intervals;
A human sensor that senses human heat,
A display device that displays information for reference during play;
When a signal corresponding to human heat is detected, the display of the display device is turned on, and when the signal corresponding to human heat continues to be detected for a certain period of time, the display of the display device is displayed. A display control unit for controlling to turn off
An area calculation unit that calculates the current area in the course using the position of the cart calculated from the received GPS data;
The navigation apparatus according to claim 1, wherein the display control unit changes the length of the predetermined time for turning off the display in accordance with the type of the area that is currently calculated by the area calculation unit.   The navigation device according to claim 1, wherein the display control unit makes the length of the predetermined time for turning off the display shorter than other areas when the current area is a green area. . In a navigation device mounted on a golf cart,
A GPS device that receives GPS data at regular intervals;
A human sensor that senses human heat,
A display device that displays information for reference during play;
When a signal corresponding to human heat is detected, the display of the display device is turned on, and when the signal corresponding to human heat continues to be detected for a certain period of time, the display of the display device is displayed. A display control unit for controlling to turn off
An area calculation unit that calculates the current area in the course using the position of the cart calculated from the received GPS data;
The display control unit unconditionally turns off the display when the current area calculated by the area calculation unit is a green area.   The area calculation unit calculates the position of the current cart by calculating the position of the own cart from the received GPS data using the embedded information obtained by embedding the survey result information stored in the memory in the map information. The navigation device according to claim 1 or 3, characterized in that A GPS device that receives GPS data at regular intervals;
A human sensor that senses human heat,
A display device that displays information for reference during play, and a display control method for the display device executed by a navigation device mounted on a golf cart.
An area calculation step for calculating the current area in the course using the position of the cart calculated from the received GPS data;
When a signal corresponding to human heat is detected, the display of the display device is turned on, and when the signal corresponding to human heat continues to be detected for a certain period of time, the display of the display device is displayed. A display control step for performing control to turn off the light,
In the display control step, the length of the predetermined time for turning off the display is changed in accordance with the type of the area currently calculated by the area calculation unit.