JP3054240B2 - Golf cart position display system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a system for displaying the position of a golf cart at a golf course.

[0002]

2. Description of the Related Art As a conventional system for displaying a golf cart position at a golf course, a current position of the golf cart is calculated in accordance with an output of a direction sensor or a distance sensor, and a golf course map and a golf cart are displayed on a display. Japanese Patent Application Laid-Open No. 2-126875 discloses a display that combines and displays the current position.

[0003] By the way, when playing golf, it is necessary to grasp the progress of each group of players from the viewpoint of safety. In particular, when the visibility is poor due to weather such as fog, the progress of the preceding group is not known, and the vehicle may approach the preceding group extremely. In such a case,
The hit ball from the succeeding group reaches the vicinity of the preceding group and is dangerous.

In the conventional golf cart position display system, only the position of the golf cart of the own vehicle is displayed.
It was not possible to grasp the progress of the preceding group and the rear group.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a golf cart position display system capable of grasping the progress between players in a golf course.

[0006]

A golf cart position display system according to the present invention is provided for each golf cart and displays the current position of the golf cart.
A sensor that detects and obtains current location data, and for each golf cart
The current location data obtained by the sensor
Transmission means for transmitting by line signal and transmission of each golf cart
Receiving the first wireless signal transmitted from the means, and
Collect current location data for each
Receiving / transmitting means for transmitting data by a second wireless signal;
The second wireless signal provided for each car is received and the golf car is received.
Receiving display means for obtaining current position data for each golf course and displaying, on a display, an image in which current positions of a plurality of golf carts are superimposed in a pattern on a map of a golf course in accordance with the current position data.
It is characterized by comprising.

[0007]

In the golf cart position display system of the present invention , a sensor, a transmitting means and a transmitting means are provided for each golf cart.
A reception display means is provided, and the current location data obtained from the sensor is provided.
The transmitting means transmits the first radio signal, and the first
The line signal is received by the receiving and transmitting means and the golf cart
Collected as current location data for each
The geographical data is transmitted by the second wireless signal and each golf cart
The current position data of each golf cart is received, and the image in which the current positions of a plurality of golf carts are superimposed on the map of the golf course in a pattern according to the current position data is received. Display on the display is performed.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. The golf cart position display system according to the present invention includes a terminal device and a central device. FIG. 1 shows a terminal device mounted on a golf cart (not shown). In this terminal device, the direction sensor 1 detects the traveling direction of the cart, the angular velocity sensor 2 detects the angular velocity of the cart, and the distance sensor 3 detects the traveling distance of the cart. A GPS (Global Positioning System) device 4 is for detecting the absolute position of a cart from latitude and longitude information and the like, and the detection output of each of these sensors (devices) is supplied to a system controller 5. Is done. As the azimuth sensor 1, for example, a terrestrial magnetism sensor that detects the traveling azimuth of the cart by terrestrial magnetism (earth magnetic field) is used. The distance sensor 3 comprises a pulse generator for generating a pulse each time a shaft (not shown) of a cart wheel rotates at a predetermined angle. This pulse generator is a known type that generates a pulse by magnetically or optically detecting the rotational angle position of the shaft. The azimuth sensor 1 needs to be reset at a reference position in order to remove the accumulated error. Since the GPS device 4 receives a radio wave from a satellite, the GPS device 4 cannot detect a position in a tunnel or a shadow.

A system controller 5 receives an output of each of the sensors (devices) 1 to 4 as an input and performs an A / D (analog / digital) conversion or the like interface 6.
And performs various image data processing and, based on the output data of each of the sensors (devices) 1 to 4 sequentially transmitted from the interface 6, the travel distance, travel direction and travel direction of the cart. A CPU (Central Processing Circuit) 7 for calculating the current position coordinates (longitude, latitude) and the like, and a ROM (read only) in which various processing programs of the CPU 7 and other necessary information are written in advance.
(Only memory) 8 and a RAM (random access memory) 9 for writing and reading information necessary for executing a program.

As an external storage medium, for example, a CD-ROM is used as a read-only nonvolatile storage medium. The external storage medium is not limited to the CD-ROM, but may be a non-volatile storage medium such as a DAT or an IC card. The CD-ROM stores in advance map data obtained by digitizing a map including the periphery of at least 18 holes of the golf course. The stored information is read from this CD-ROM by a CD-ROM driver-10. CD-ROM drive 1
The read output of 0 is decoded by the CD-ROM decoder 11 and sent to the bus line L.

The transceiver 12 transmits and receives a carrier wave of a predetermined frequency, for example, by pulse code modulation in accordance with data or a command sent from the CPU 7 and held in the buffer 13 from the antenna 12a as a radio signal. Data is demodulated from the radio signal and supplied to the input / output buffer 13. The buffer 13 is connected to the bus line L. C
The PU 7 calculates the running azimuth of the cart based on the output data of the azimuth sensor 1 at a predetermined cycle by a timer interrupt,
In addition, an interruption for every fixed distance based on the output data of the distance sensor 3 is used to calculate the distance from the traveling distance and the traveling direction, or from the GPS.
From the output of the device 4, longitude and latitude data indicating the coordinates of the current position of the golf cart of the vehicle are obtained, and the current position data is stored in the RAM 9.
To be stored. The map data of the hole area including the coordinates of the current point is read from the CD-ROM, and the read data is supplied to the display device 16.

The display device 16 includes a display 17 such as a CRT or an LCD, a graphic memory 18 such as a V (Video) -RAM, and map data sent from the system controller 5 to the graphic memory 18. A graphic controller 19 for drawing as image data and outputting the image data, and a control for displaying a map on the display 17 based on the image data output from the graphic controller 19 And a display controller 20 for performing the operations. The input device 21 includes a keyboard or the like, and issues various commands to the system controller 5 by a key operation by a user. This terminal device operates using a battery mounted on the cart as a power supply.

FIG. 2 shows a central device arranged in a golf house of a golf course. In this central unit, C
PU 31, ROM 32, RAM 33, buffer 34, transceiver 35, CD-ROM drive 36, CD-ROM
Decoder 37, input device 38, graphic memory 3
9, a graphic controller 40, a display controller 41, and a display 42 are provided. CPU3
1, a ROM 32, a RAM 33 and a buffer 34 constitute a system controller 44;
9. The graphic controller 40, the display controller 41, and the display 42 constitute a display device 45.
The configuration of the central device is the same as that of the terminal device except for the azimuth sensor 1, the angular velocity sensor 2, the distance sensor 3, the GPS device 4, and the interface 6. However, RO
Data and programs stored in M32, RAM33
The capacity of the buffer 34 or the size of the display surface of the display 42 is different from that of the terminal device. RAM33
Figure 3 shows the number of carts for each hole as shown in Fig. 3.
A cart data table for writing the car number data and the current location data is formed. The cart number data indicates the number of golf carts present on each hole. All golf cars
The numbers different from each other are assigned in advance as cart numbers. The current position data is composed of latitude and longitude data and indicates the current position of the golf cart. The cart number data and the current location data are written in the RAM 33 as a pair.
Although only three pairs can be written in FIG. 3,
A greater number of cart numbers and current location data pairs may be writable.

The transmission frequency of the transceiver 12 of the terminal device is equal to the reception frequency of the transceiver 35 of the central device, and the reception frequency of the transceiver 12 of the terminal device is the same as that of the central device.
Is equal to the transmission frequency. However, the transmitting and receiving frequencies of the transceiver 12 of the terminal device and the transceiver 35 of the central device may be the same. Further, the transmission frequencies of the plurality of terminal devices may be different. Further, the transceiver 12,
35 are normally in a receiving state, and transmission is performed only when necessary for operation.

Next, the operation of the golf cart position display system having such a configuration will be described. In the operation of the central unit, the following routines are stored in the ROM 32 as a program in advance, and in the operation of the terminal unit, the routines are stored in the ROM 8 as a program in advance. The CPU 31 of the central unit executes a data collection routine at a predetermined cycle. In the data collection routine, the CPU 31 firstly stores the cart data in the RAM 33 as shown in FIG.
Erase the written data in the table (step S
1), the number-of-carts data is set to data indicating 0 for each hole in the cart data table (step S2). After the execution of step S2, the cart number m is set to 1 (step S3), and a cart information data transmission instruction for the golf cart of the cart number m is generated (step S4). This data transmission command is supplied from the CPU 31 to the transceiver 35 via the bus line 43 and the buffer 34, and the
5 is transmitted as a radio signal via the antenna 35a.

After execution of step S4, it is determined whether or not data has been transmitted (step S5). This is because when the transceiver 35 receives the radio signal, it demodulates the data from the radio signal and supplies it to the buffer 34.
Is determined based on whether or not data is held in the memory. If no data has been transmitted, it is determined whether or not a predetermined time t1 has elapsed since the execution of step S4 (step S6). This predetermined time t1 is the maximum time required from the issuance of the cart information data transmission instruction to the transmission of the cart information data from the golf cart. If the predetermined time t1 has not elapsed, the process returns to step S5. If the predetermined time t1 or more has elapsed, it is considered that the golf cart with the cart number m is not currently used, and 1 is added to the cart number m (step S7). It is determined whether or not the number is greater than the number n (step S8). If m ≦ n, the process proceeds to step S4,
If m> n, terminate the data collection routine.

On the other hand, if the cart information data has been transmitted in step S5, the received cart information data is read from the buffer 34 (step S9). As shown in FIG. 5, the cart information data includes cart number data,
It consists of hole number data and current location data, and has a start bit and a stop bit before and after. The hole number of the read hole number data is set to h, and the RAM 3
The cart number data C (h) at the hole number h is read from the cart data table No. 3 (step S10), and 1 is added to the cart number data C (h). (Step S1
1) Update the cart number data C (h) of the cart data table in the RAM 33 (step S12). The read cart number data and the current location data are used as the cart data.
The C (h) -th data position of the hole number h of the bull is written (step S13). After execution of step S13, the process proceeds to step S7, and the above operation is repeated. As a result, the cart information data of all golf carts currently used are written in the cart data table.

Next, the operation of transmitting the cart information data in response to the cart information data transmission command in the terminal device will be described. The CPU 7 of the terminal device always determines whether or not a cart information data sending command for the golf cart is held in the buffer 13, and the cart information data sending command is held in the buffer 13. Then, the cart information data transmission routine is executed by the interrupt processing. In the routine for sending the cart information data, the CPU 7 executes the routine shown in FIG.
The card number data stored in the RAM 9 as shown in FIG.
The data, the hole number data and the current position data are read out (step S21), and are composed of the start number and the stop bit together with the cart number data, the hole number data and the current position data. Create cart information data (step S2)
2) Buffer 1 for transmitting cart information data
3 (step S23). The cart information data held in the buffer 13 is modulated by a transmitter / receiver 12 to modulate a carrier of a predetermined frequency and converted into a radio signal as an antenna 12 a
Sent from.

Next, in the central unit, the CPU 31 executes the data collection routine and then executes all the golf cards in use.
A display data transmission routine for transmitting display data to the host is executed. In the display data transmission routine, the CPU 31 first makes the hole number h equal to 1 as shown in FIG. 7 (step S31). The cart number data of the hole number h of the cart data table in the RAM 33 is read out as C (h) (step S32), and the cart number data C (h) is 0. Is determined (step S3).
3). If C (h) = 0, it is considered that there is no golf cart in the hole of the golf course with the hole number h, and 1 is added to the hole number h (step S34), It is determined whether or not the number h is larger than 18 (step S3).
5). The number of holes in the golf course is 18. h ≦ 1
If it is 8, the process proceeds to step S32. If h> 18,
The display data transmission routine ends.

If C (h) ≠ 0 in step S32, the cart number data corresponding to the hole number h of the cart data table and the current location data are converted into the cart number data. TA C
(h) only (step S36), and the read data
The display data is created by the data (step S37),
The display data is supplied to the buffer 34 for transmission (step S38). That is, the display data is shown in FIG.
After the start bit, the hole number data,
Cart number data, at least one pair of cart number data and current position data, and stop bits in that order. The display data held in the buffer 34 is modulated by a transmitter / receiver 35 at a carrier having a predetermined frequency and transmitted as a radio signal from an antenna 35a. After execution of step S38, the process proceeds to step S34.

Next, the CPU 7 of the terminal device always determines whether or not the display data is stored in the buffer 13. If the display data is stored in the buffer 13,
Executes the terminal display routine by interrupt processing. The CPU 7 calculates the traveling azimuth of the cart based on the output data of the azimuth sensor 1 at a predetermined cycle by the timer interrupt as described above, and performs a predetermined distance based on the output data of the distance sensor 3. From the travel distance and travel direction by the interruption for each travel, or from the output of the GPS device 4,
Find longitude and latitude data indicating the coordinates of the current location of the
The AM 9 stores the current location data as the current location data, and stores the map data of the hole area including the current location coordinates in the CD-RO.
M, and reads the read data from the display device 16.
And a map is displayed on the display 17.
The graphic memory 18 in the display device 16 stores two V-
A RAM (not shown) is provided, and map data is stored in the first V
-Written to RAM.

In the terminal display routine, the CPU 7 first reads the received display data from the buffer 13 (step S41) as shown in FIG.
It is determined whether the data is the map of the hole number being displayed on the display 17 (step S42). This is determined by whether or not the hole number data obtained from the display data is equal to the hole number of the map being displayed. If the received display data does not correspond to the map of the hall number being displayed, this routine ends. On the other hand, if the received display data is for the hall area being displayed, the number of cart number data and the current location data indicated by the number of cart data are displayed in the graphic control. To the controller 19 (step S43). The graphic controller 19 stores the display pattern data corresponding to the cart number data at the storage position corresponding to the coordinates indicated by the current position data among the storage positions of the second V-RAM of the graphic memory 18. Write. The display pattern data corresponding to the cart number data is stored in the ROM (not shown) of the graphic controller 19 in advance. Further, the graphic controller 19 accesses and reads the image data from the first and second V-RAMs of the graphic memory 18 in synchronization with each other, and reads the first V-RAM.
-Supply image data from the RAM to the display controller 20, and when image data indicating display pattern data is obtained from the second V-RAM, replace the image data with the image data from the first V-RAM. To supply the display controller 20 with the image data from the second V-RAM. The display controller 20 displays the image on the display 17 based on the supplied image data, for example, as shown in FIG.
As shown at 0, a map of the hole is displayed together with a cart position existing in the hole by a cart number.

On the other hand, in the central device, a central display routine is repeatedly executed by the CPU 31. In the center display routine, the CPU 31 first determines whether or not a ball number has been input by a key operation on the input device 38 (step S51). If the hall number has not been input, it is determined whether or not a map is displayed on the display 42 (step S52). If the map is being displayed, the process proceeds to step S55 described later. If the map is not being displayed, the routine ends. When the hall number is inputted, the map data of the hall number i is read from the CD-ROM with the hall number being i (step S53), and the read data is read by the graphic controller. (Step S54). Also,
The cart number data C (i) of the hole number i of the cart data table in the RAM 33 is read out (step S55), and whether the cart number data C (i) is 0 or not. It is determined whether or not it is (step S56). If C (i) = 0, it is considered that there is no golf cart on the hole of the golf course with the hole number h, and the routine ends. If C (i) ≠ 0, the chart data
A card which is write data of the hole number i of the table.
The car number data and the current location data are converted into cart number data C (i).
Only (step S57), the number of cart data C
The number of cart number data and the current position data as many as the number indicated by (i) are supplied to the graphic controller 40 (step S58). The graphic memory 39 has two V-RAMs (not shown), like the graphic memory 18, and the graphic controller 40 operates in the same manner as the graphic controller 19 of the above terminal device. The map of the selected hole is displayed on the display 42 along with the cart position existing in the hole by the cart number.

In the above-described embodiment, the golf cart is provided with a sensor for detecting data indicating the current position. However, the present invention is not limited to this. For example, a golf cart generates a timing-modulated oscillation signal such as a radio wave or an ultrasonic wave from a golf cart, and detects the oscillation position at a plurality of reception poles in a golf course based on the arrival time difference of the reception wave. A reception port method for obtaining the current location data may be used. Alternatively, a sign post method may be used in which a position signal from a reference sign post is received by a cart, position data is obtained based on the arrival time difference, and the position data is transmitted from the cart to the central unit.

In the above-described embodiment, the terminal device mounted on the golf cart has a map of the hole on which the golf cart is located and the position of the cart including the own vehicle located on the hole. Is displayed by the cart number, but the input device 2
The user is allowed to select the number of an arbitrary ball by 1 and the position of the cart present in the selected hole is displayed along with the map of the selected hole other than the one where the golf cart is present. It is also possible to display by default number. For example, each time the reset key of the input device 21 is operated, the hole number is advanced one by one, or the hole number can be directly selected by operating the numeric keypad.

Further, in the above-described embodiment, the display device is mounted on the golf cart, but the golf cart detects the current location and transmits the cart number data and the current location data. Only the functional part is provided, and the cart number data and the current location data are received from the central unit, and the cart position existing in the hall is displayed by the cart number together with the map of the hall. The functional part may be a portable one separate from the golf cart.

Further, it is also possible to communicate between devices provided on each golf cart without using the central device and obtain data on each golf cart position and display the cart position.
Further, a general liquid crystal television can be used as a display provided in the golf cart. In this case, the radio wave from the central unit may be received on a specific channel and the cart position may be displayed together with the map of the hall.

[0028]

As described above, according to the present invention, the player
The progress between the preceding and following pairs in each golf cart
Since the player himself can grasp, the safety of golf play can be enhanced. In addition, it is possible to prevent delay or excessive progress of play, and to promote appropriate progress of play.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a terminal device as an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a central device as an embodiment of the present invention.

FIG. 3 is a diagram showing a cart data table.

FIG. 4 is a flowchart showing a data collection routine.

FIG. 5 is a diagram showing a configuration of cart information data.

FIG. 6 is a flowchart showing a cart information data transmission routine.

FIG. 7 is a flowchart showing a display data transmission routine.

FIG. 8 is a diagram showing a configuration of display data.

FIG. 9 is a flowchart showing a terminal display routine.

FIG. 10 is a diagram showing a display example on a display.

FIG. 11 is a flowchart showing a center display routine.

[Description of Signs of Main Parts]

 5,44 System controller 12,35 Transceiver 16,45 Display device 21,38 Input device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A63B 71/06 A63B 55/08

Claims (1)

(57) [Claims] A golf cart provided for each golf cart
A sensor for detecting the current position of the golf club and obtaining current position data; and a current sensor provided for each golf cart and obtained by the sensor.
Transmitting means for transmitting the location data by a first wireless signal, and a first wireless signal transmitted from the transmitting means of each golf cart;
Receive signals and collect current location data for each golf cart
And transmits the collected current location data via a second wireless signal.
Receiving and transmitting means for receiving the second radio signal provided for each golf cart, obtaining current location data for each golf cart, and displaying a plurality of maps on a golf course in accordance with the current location data. of Gorufuka - DOO location of pattern - Gorufuka characterized in that a receiving display means for displaying on the display an image superimposed by down -
G position display system .