Radar-based ball detection system connectable to rangefinder

Abstract

The objective of the present invention is to provide a radar-based ball detection system connectable to a rangefinder, which combines functions of the rangefinder and a radar-based launch monitor so that the rangefinder and the radar-based launch monitor are connected to each other to transmit information to each other, thereby allowing the radar-based launch monitor to set a direction of a main lobe on the basis of information set by the rangefinder. In addition, by using information on a target position set by the rangefinder together with information analyzed by the radar-based launch monitor, it is possible to more accurately analyze and calculate shot information according to a golfer's golf shot.

Description

Radar-based ball detection system that can be connected to a range finder

[0001] The present invention relates to a radar-based ball detection system that can be connected to a launch monitor, which enables a golfer playing golf on a golf course to obtain information on the movement characteristics of a golf ball according to his or her golf shot, and a range finder that can identify a target location that the golfer intends to hit and measure the distance to that location, so that the launch monitor can utilize the information collected by the range finder.

[0002] Rangefinders are widely used on golf courses as a tool to assist golfers in their golf play.

[0003] A typical rangefinder is equipped with a telephoto device using a lens array and a laser pointer, so that the user can aim the laser at the target location from the current location and press a button to calculate and display the distance from the current location to the target location, so that the user can refer to the displayed information when making a golf shot.

[0004] Meanwhile, launch monitors that can measure information such as hitting information and ball trajectory information according to the user's golf shot are also widely used. These launch monitors include camera-based launch monitors equipped with a stereoscopic camera system and radar-based launch monitors equipped with a radar sensing system.

[0005] Camera-based launch monitors have a problem in that they have difficulty detecting a golf ball that flies far after being hit due to the limitations of the camera's field of view and resolution. Furthermore, they can only effectively detect the ball within a certain range relative to the location where it is impacted by the golf club. In other words, camera-based launch monitors can effectively detect the area around where the user makes a hit, but cannot detect the ball if it moves away from the camera. Therefore, camera-based launch monitors are primarily used for indoor golf practice rather than outdoor golf courses.

[0006] A radar-based launch monitor is a device that transmits a radar signal toward a moving ball, receives a signal reflected from the ball, and analyzes the received signal to derive information about various characteristics of the ball's movement. Since the radar has a wide sensing range, it can detect the ball even when the distance between the device and the ball is quite far, and it has the advantage of being able to sense information such as the ball's spin, which is difficult to detect through image analysis, with a considerable degree of accuracy. Therefore, it is mainly used when playing golf outdoors, such as on a golf course, rather than indoors.

[0007] Launch monitors are useful tools for golfers to improve their skills, as users can correct their shots based on the analysis results of the launch monitor.

[0008] However, since such radar-based launch monitors can sense the movement of the ball within the main lobe, which is the main area of ​​the radar signal, and such a main lobe does not cover all areas of the hole of a wide golf course, there is a problem in that if the target location where the user wants to send the ball by a golf shot is outside the main lobe, the launch monitor may not detect the ball according to the golf shot.

[0009] Prior art documents related to the present invention include U.S. Patent No. 11,480,676, Korean Patent No. 10-2417063, Korean Patent No. 10-2150493, and Korean Patent No. 10-2248980.

[0010] The present invention provides a radar-based ball detection system that can be connected to a range finder by combining the functions of a range finder and a radar-based launch monitor so that the range finder and the radar-based launch monitor can be connected to each other and transmit information to each other, thereby enabling the radar-based launch monitor to set the direction of the main lobe based on the information set by the range finder, and further enabling the information on the target position set by the range finder to be used together with the information analyzed by the radar-based launch monitor to more accurately analyze and produce hitting information according to the golf shot of the golfer.

[0011] A ball detection system according to one embodiment of the present invention is a radar-based ball detection system that can be connected to a range finder that detects a golf ball that is hit by a golfer and moves on a golf course, the range finder measuring a distance from a position of the golfer to a target point aimed by the golfer and calculating position information of the target point; and a launch monitor detecting the position of the moving golf ball by transmitting a radar signal and receiving and analyzing a reflected wave signal reflected from the moving golf ball, wherein the launch monitor is characterized in that it is configured to be coupled to or communicatively connected to the range finder to receive position information of the target point from the range finder and to guide or perform attitude control to form a main lobe, which is a sensing area by the radar signal, toward the target point.

[0012] Also preferably, the range finder comprises a housing that is provided so that the golfer can hold and use it by hand, a lens module provided in the housing, a view window that allows the golfer to aim at a target point through the lens module, a laser measuring unit that measures the distance to the target point aimed by the golfer, a GPS position detection unit that detects a current location by a satellite signal, a direction detection sensor that detects the direction in which the golfer is aiming, a position calculation unit that calculates position information of the target point aimed by the golfer based on map data of a golf course on which the golfer is playing, and a monitor connection unit that supports a connection through mechanical coupling with the launch monitor or a wireless communication connection.

[0013] Also preferably, the launch monitor comprises a monitor body having a signal transmitter for transmitting the radar signal, a signal receiver for receiving a reflected wave signal reflected from a moving golf ball in response to a signal from the signal transmitter, a finder connection unit for supporting a connection through mechanical coupling with the range finder or a wireless communication connection, a body drive unit for rotating the monitor body, and a control unit for receiving position information of the target point from the range finder connected through the finder connection unit and controlling the body drive unit to form a main lobe of the radar signal toward the target point.

[0014] Also preferably, the launch monitor comprises a monitor body having a signal transmitter for transmitting the radar signal, a signal receiver for receiving a reflected wave signal reflected from a moving golf ball in response to a signal from the signal transmitter, a finder connection unit for supporting a connection through mechanical coupling with the range finder or a wireless communication connection, a direction guide for guiding a direction in which the monitor body faces using a visual element, and a control unit for controlling the direction guide to provide direction information in which the monitor body faces the target point by receiving position information of the target point from the range finder connected through the finder connection unit, thereby guiding the golfer to change the posture of the monitor body so that a main lobe of the radar signal can be formed toward the target point.

[0015] Also preferably, the launch monitor comprises a signal transmitting unit that transmits the radar signal, a signal receiving unit that receives a reflected wave signal reflected from a moving ball in response to a signal from the signal transmitting unit, a finder connecting unit that supports a connection through mechanical coupling with the range finder or a wireless communication connection, and a control unit that calculates information on the trajectory of the moving golf ball and the arrival point of the golf ball by analyzing a signal received from the signal receiving unit for the golf ball moving according to the golfer's golf shot, and calculates ball characteristic information according to the golfer's golf shot using the location of the target point, the location of the arrival point of the golf ball, and the trajectory information of the golf ball.

[0016] Meanwhile, according to another embodiment of the present invention, a ball detection system is a radar-based ball detection system that can be connected to a range finder that detects a golf ball that is hit by a golfer and moves on a golf course, the range finder measuring a distance from a position of the golfer to a target point aimed by the golfer and calculating position information of the target point; and a signal transmitter that transmits a radar signal, a signal receiver that receives a reflected wave signal reflected from the moving golf ball in response to a signal from the signal transmitter, a finder connection unit that supports a connection through mechanical coupling with the range finder or a wireless communication connection, and a control unit that calculates a trajectory of the moving golf ball and position information of an arrival point of the golf ball by analyzing a received signal from the signal receiver for the moving golf ball, and a launch monitor configured to receive the position information of the target point from the range finder and calculate hit characteristic information according to a golf shot of the golfer using the calculated trajectory of the golf ball and position information of the arrival point.

[0017] A radar-based ball detection system connectable to a range finder according to the present invention combines the functions of a range finder and a radar-based launch monitor so that the range finder and the radar-based launch monitor are connected to each other and can transmit information to each other, thereby enabling the radar-based launch monitor to set the direction of the main lobe based on the information set by the range finder to enable accurate ball detection, and furthermore, by utilizing the information on the target position set by the range finder together with the information analyzed by the radar-based launch monitor, there is an effect of more accurately analyzing and producing hitting information according to a golfer's golf shot.

[0018] FIG. 1 is a diagram illustrating an example of a radar-based ball detection system connectable to a range finder according to one embodiment of the present invention.

[0019] FIG. 2 is a block diagram showing the configuration of a radar-based ball detection system connectable to a range finder according to one embodiment of the present invention.

[0020] FIGS. 3 and 4 are diagrams illustrating examples of playing golf using a radar-based ball detection system connectable to a range finder according to one embodiment of the present invention.

[0021] FIG. 5 is a diagram illustrating that a radar-based ball detection system connectable to a range finder according to another embodiment of the present invention can produce more improved golf shot information by fusing information set by the range finder and information analyzed by the launch monitor.

[0022] The details of a radar-based ball detection system connectable to a range finder according to the present invention are described with reference to the drawings.

[0023] First, the configuration of a radar-based ball detection system connectable to a range finder according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a drawing showing an example of a radar-based ball detection system connectable to a range finder according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of a radar-based ball detection system connectable to a range finder according to an embodiment of the present invention.

[0024] A ball detection system according to one embodiment of the present invention basically detects a golf ball that is hit by a golfer and moves on a golf course, and using the detection result, calculates and provides information on the movement characteristics of the moving golf ball, such as trajectory information of the moving golf ball and arrival point information of the moving golf ball, to the golfer. In addition, the system can also generate analyzed hitting information using this information and provide it to the golfer.

[0025] As illustrated in FIGS. 1 and 2, a ball detection system according to one embodiment of the present invention includes a range finder (100) that enables a golfer to set a target point and measure the distance thereto, and a launch monitor (200) that detects the position of a moving golf ball based on a radar signal and calculates golf ball movement characteristic information such as a ball trajectory, and the launch monitor (200) is configured to be connected or communicatively coupled to the range finder (100) so that the launch monitor (200) can receive information from the range finder (100) and use the information for ball detection or calculation of analysis information.

[0026] At this time, at least one of the range finder (100) and the launch monitor (200) is configured to communicate with a golf course information providing server (SV), for example, a golf course server or a separate server providing golf course information, so that map data of the golf course where the golfer is currently playing golf can be received and used from the server (SV).

[0027] The above-described range finder (100), like a conventional rangefinder, can be carried by a golfer while playing golf and configured to measure the distance to a target point and provide the golfer with the information. However, the range finder (100) used in the ball detection system according to the present invention can perform additional functions different from those of a conventional rangefinder.

[0028] As shown in FIGS. 1 and 2, the range finder (100) may be configured to include a housing (101) that is provided so that a golfer can hold and use it by hand, a lens module (not shown) provided in the housing (101), a view window (102) that allows the golfer to aim at a target point through the lens module, a laser measuring unit (110) that irradiates a measuring laser (ML) to the target point aimed by the golfer and receives the reflected light to measure the distance, a GPS position detection unit (120) that detects the current position by a satellite signal, a direction detection sensor (130) that detects the direction in which the golfer is aiming, and a position calculation unit (140) that calculates position information of the target point aimed by the golfer based on map data of the golf course on which the golfer is playing, and may further be configured to include a monitor connection unit (150) that supports a connection through a mechanical combination with a launch monitor (200) or a wireless communication connection. there is.

[0029] As illustrated in Fig. 1, the range finder (100) allows the golfer to view the front view through the view window (102) via the lens module provided inside the housing (101). The view window (102) is configured to enable a see-through display, so that a crosshair (AC) can be displayed to enable the golfer to aim, and the target distance (DA) to the target position measured by the laser measuring unit (110) can be displayed.

[0030] The range finder (100) as described above can calculate current location information on the golf course by using location information detected by the GPS location detection unit (120) using golf course map data, and when a golfer aims at a target point through the view window (102), the direction detection sensor (130) calculates direction information of the target point aimed by the golfer, and the laser measurement unit (110) can calculate target distance information, which is the distance to the target point. In addition, the location calculation unit (140) of the range finder (100) can calculate location information of the target point aimed by the golfer on the golf course map data by using the current location information, the direction information of the target point, and the target distance information.

[0031] Meanwhile, the above-described launch monitor (200) may be configured to include a monitor body (202), a signal transmitter (210) provided inside the monitor body (202) and configured to transmit a radar signal to form a main lobe, which is a sensing area of ​​the radar, through the front part (203) of the monitor body (202), a signal receiver (220) configured to receive a reflected wave signal reflected from a moving golf ball in response to a signal from the signal transmitter (210), a control unit (250) configured to analyze the radar reflected signal received by the signal receiver (220) and calculate location information of the moving golf ball, and a finder connection unit (260) that supports a connection through mechanical coupling with the monitor connection unit (150) of the range finder (100) or a wireless communication connection.

[0032] The above-described launch monitor (200) may include a body drive unit (230) that rotates the monitor body (202), and as illustrated in FIG. 1, the monitor body (202) may be configured to rotate relative to a base (201) placed on the floor, and the body drive unit (230) may be configured to rotate the monitor body (202) under the control of the control unit (250).

[0033] In a state where the above-described range finder (100) is connected to the above-described launch monitor (200), the control unit (250) of the launch monitor (200) can receive location information of the target point from the range finder (100).

[0034] The control unit (250) of the launch monitor (200) can perform attitude control to rotate the monitor body (202) by controlling the body drive unit (230) so that a main lobe, which is a sensing area by the radar signal, can be formed toward the target point when the direction of the front part (203), which is the part where the radar signal for detecting a moving golf ball is transmitted and received, is different by a predetermined range or more from the direction of the target point received from the range finder as described above.

[0035] Meanwhile, the launch monitor (200) may include a direction guide (240) instead of the above-mentioned body driving unit.

[0036] That is, the launch monitor (200) is not implemented in a configuration in which the monitor body (202) can rotate with respect to the base (201), but is simply configured so that the launch monitor is formed as a single monitor body, and the golfer is allowed to change the direction of the monitor body through the direction guide (240).

[0037] In a state where the range finder (100) is connected to the launch monitor (200) including the direction guide (240) as described above, the control unit (250) of the launch monitor (200) receives the position information of the target point from the range finder (100), and if the direction in which the front part (203) where the radar signal is transmitted and received is different from the direction of the target point by a predetermined range or more, the control unit (250) can calculate the amount of rotation from the direction in which the current launch monitor is directed to the direction of the target point and guide the golfer through the direction guide (240).

[0038] For example, as illustrated in FIG. 1, the direction guide (240) can be configured to light up the left and right arrows, respectively, and when the control unit needs to change the posture to a left (right) rotation in the direction of the target point, the left arrow (right arrow) of the direction guide can be displayed in red or flashed to guide the left rotation (right rotation), and when the direction of the launch monitor matches the direction of the target point within a predetermined range, the left and right arrows can be illuminated in blue to guide that the posture change is complete.

[0039] In this way, the direction guide can be used to guide the change of posture of the monitor body, and as the posture change is completed so that the monitor body faces the target point, the main lobe of the radar signal of the launch monitor can be formed toward the target point set by the golfer using the range finder.

[0040] An example of golf play using a ball detection system according to one embodiment of the present invention as described above is described with reference to FIGS. 3 and 4.

[0041] Figures 3 (a) to (c) illustrate golf play in one hole of a golf course. Figure 3 (a) illustrates a case where a golf shot is made from the golfer's position (GP) in the hole the golfer is playing.

[0042] As illustrated in (a) of FIG. 3, a golfer may attempt a shot from his current position (GP) toward the pin (PIN) position on the green (GR), and for this purpose, the launch monitor (200) may be positioned approximately in the direction of the pin (PIN). At this time, it is quite difficult to precisely position the front of the launch monitor so that it faces the direction the golfer is aiming at, so it is sufficient to position it roughly.

[0043] As shown in (b) of FIG. 3, a golfer can set a target point (TP1) to which a golf ball is to be sent as a pin (PIN) position using a range finder (100), and the range finder (100) can calculate position coordinate information of the corresponding target point (TP1) on map data using the current position (GP) information by the GPS position detection unit, the distance information measured using a laser (ML1), and the direction information by the direction detection sensor.

[0044] The range finder (100) can be mechanically connected to the launch monitor (200) or can be connected wirelessly, such as via Bluetooth, and the location information of the target point (TP1) set by the golfer using the range finder (100) can be transmitted to the launch monitor (200).

[0045] The launch monitor (200) can receive position information of the target point (TP1) from the range finder (100) and use a direction guide to guide the golfer to change direction by forming a main lobe by radar signal toward the target point (TP1), or can perform attitude control by controlling the body drive unit to rotate the body of the launch monitor toward the target point.

[0046] Accordingly, as shown in (c) of Fig. 3, the direction in which the launch monitor faces can be adjusted so that the main lobe (RL1) by the radar signal is formed toward the target point (TP1).

[0047] As the main lobe of the radar signal is formed toward the target point, the launch monitor can accurately sense the golf ball struck by the golfer within the main lobe.

[0048] Meanwhile, in a state as shown in (c) of the above-mentioned Fig. 3, since there are bunkers and hazards around the green (GR), the golfer may consider a strategy of sending the golf ball to a safer location to easily get on the green rather than directly targeting the pin (PIN) from the current position (GP) and making a shot.

[0049] Accordingly, the golfer can consider the target point of TP2, which can be safely laid up from the current position (GP) to the pin (PIN), as shown in (a) of FIG. 4, and set the second target point (TP2) by transmitting a laser (ML2) with the range finder (100).

[0050] As shown in (a) of FIG. 4, the new target point TP2 is somewhat far from the pin position and thus is out of the range of the main lobe (RL1) of the radar signal of the launch monitor. Therefore, if the direction of the launch monitor is not changed, the launch monitor may not detect the golf ball moving toward the golfer's TP2 target point by one shot.

[0051] However, a ball detection system according to one embodiment of the present invention can transmit target point location information set by a range finder to a launch monitor, and the launch monitor can change direction using the target point location information so that a main lobe can be formed centered on the target point aimed by the golfer.

[0052] As shown in (a) of Fig. 4, a golfer can set a target point (TP2) to which a golf ball is to be sent using a range finder (100), and the range finder (100) can calculate the position coordinate information of the corresponding target point (TP2) on the map data using the current position (GP) information by the GPS position detection unit, the distance information measured using a laser (ML2), and the direction information by the direction detection sensor.

[0053] The range finder (100) is connected to the launch monitor (200) so that it can exchange information with the launch monitor, so that the golfer can transmit the location information of the target point (TP2) set using the range finder (100) to the launch monitor (200).

[0054] The launch monitor (200) can receive position information of the target point (TP2) from the range finder (100) and use a direction guide to guide the golfer to change direction by forming a main lobe by radar signal toward the target point (TP2), or can perform posture control by controlling the body drive unit to rotate the body of the launch monitor toward the target point.

[0055] Accordingly, as shown in (b) of Fig. 4, the direction in which the launch monitor faces can be adjusted so that the main lobe (RL2) by the radar signal is formed toward the target point (TP2).

[0056] Accordingly, a radar-based ball detection system connectable to a range finder according to the present invention connects a range finder used by a golfer to set a target position and a radar-based launch monitor that detects a hit and produces hit analysis information, so that the radar-based launch monitor can set the direction of the main lobe based on the information set by the range finder, thereby enabling accurate ball detection.

[0057] Meanwhile, together with or separately from the function of adjusting the direction of the launch monitor as described above, the launch monitor can more accurately analyze and produce hitting information according to the golfer's golf shot by using the information of the target position set by the range finder together with the information analyzed by the launch monitor, and this will be described with reference to FIG. 5.

[0058] A radar-based ball detection system connectable to a range finder according to another embodiment of the present invention may be configured such that the range finder and the launch monitor can be connected to each other as described above, and in this case, the range finder can perform the same functions as described above, such as measuring the distance from the position of the golfer to the target point aimed by the golfer and calculating the position information of the target point.

[0059] In addition, the launch monitor includes a signal transmitter that transmits a radar signal and a signal receiver that receives a reflected wave signal reflected from a moving golf ball in response to the transmitted signal, and may include a finder connection that supports a connection through a mechanical connection with a monitor connection of a range finder or a wireless communication connection.

[0060] The launch monitor has a control unit that calculates the trajectory of a moving golf ball and the position information of the arrival point of the golf ball by analyzing the signal received by the signal receiving unit for the moving golf ball, and can be configured to receive the position information of the target point set by the range finder and use the previously calculated trajectory of the golf ball and the position information of the arrival point of the golf ball together to calculate the hitting characteristic information according to the golfer's golf shot.

[0061] In this regard, looking at (a) of Fig. 5, when a ball is hit from the ball (B) position and the ball trajectory is formed with TR to the arrival position (Pa), it is impossible to know whether the ball trajectory (TR) is the correct trajectory intended by the golfer because the golfer does not know the intended target point.

[0062] Looking at (b) of Fig. 5, if the golfer sets the T1 position to the target point position, the ball trajectory (TR) that is struck from the ball (B) position and reaches the Pa position has a significant difference between the target point (T1) and the arrival point (Pa), so the ball trajectory (TR) can be judged to be a slice ball formed differently from what the golfer intended.

[0063] In (b) of Fig. 5, if the golfer set the T2 position to the position of the target point, the ball trajectory (TR) that was hit from the ball (B) position and reached the Pa position reached near the target point intended by the golfer, so the ball trajectory (TR) can be judged to have been shot with a fade trajectory as intended by the golfer.

[0064] Therefore, a radar-based ball detection system connectable to a range finder according to another embodiment of the present invention has a special advantage in that it can analyze and produce more accurate and diverse golf shot information by adding location information of a target point intended by a golfer set by a range finder to the movement characteristic information of a golf ball detected and analyzed by a radar-based launch monitor.

[0065] The radar-based ball detection system connectable to a range finder according to the present invention can be used in industries related to golf-related devices and instruments, such as a launch monitor or range finder based on radar sensing, which can analyze and produce ball hitting information according to a user's golf shot at a golf course or similar location.

Claims

1. A radar-based ball detection system that can be connected to a range finder to detect a golf ball moving after being hit by a golfer on a golf course. A range finder that measures the distance from the position of the golfer to the target point aimed by the golfer and calculates the location information of the target point; and A launch monitor that detects the position of a moving golf ball by transmitting a radar signal and receiving and analyzing a reflected wave signal reflected from the moving golf ball, The above launch monitor is, A radar-based ball detection system connectable to a range finder, characterized in that it is configured to receive position information of the target point from the range finder by being connected or communicatively coupled to the range finder and to guide or perform attitude control to form a main lobe, which is a sensing area by the radar signal, toward the target point.

2. In the first paragraph, the range finder, A housing provided so that the golfer can hold it with his / her hand and use it, A lens module provided in the above housing, A view window that allows the golfer to aim at the target point through the lens module, A laser measuring unit that measures the distance to the target point aimed by the golfer; A GPS location detection unit that detects the current location using satellite signals, A direction detection sensor that detects the direction in which the golfer is aiming, A location calculation unit that calculates location information of the target point aimed by the golfer based on the map data of the golf course where the golfer is playing; A radar-based ball detection system connectable to a range finder, characterized in that it includes a monitor connection unit that supports connection through mechanical coupling with the launch monitor or wireless communication connection.

3. In the first or second paragraph, the launch monitor, A monitor body having a signal transmitter for transmitting the radar signal and a signal receiver for receiving a reflected wave signal reflected from a moving golf ball in response to the signal of the signal transmitter, A finder connection unit that supports connection through mechanical coupling with the above range finder or wireless communication connection, A body drive unit that rotates the above monitor body, A radar-based ball detection system connectable to a range finder, characterized in that it includes a control unit that receives location information of the target point from the range finder connected through the finder connection unit and controls the body drive unit to form a main lobe of the radar signal toward the target point.

4. In the first or second paragraph, the launch monitor, A monitor body having a signal transmitter for transmitting the radar signal and a signal receiver for receiving a reflected wave signal reflected from a moving golf ball in response to the signal of the signal transmitter, A finder connection unit that supports connection through mechanical coupling with the above range finder or wireless communication connection, A direction guide that guides the direction in which the monitor body faces using visual elements, A radar-based ball detection system connectable to a range finder, characterized in that it includes a control unit that controls the direction guide to provide direction information of the monitor body toward the target point by receiving position information of the target point from the range finder connected through the finder connection unit, thereby guiding the golfer to change the posture of the monitor body so that the main lobe of the radar signal can be formed toward the target point.

5. In the first or second paragraph, the launch monitor, A signal transmitter for transmitting the above radar signal, A signal receiving unit that receives a reflected wave signal reflected from a moving ball in response to a signal from the signal transmitting unit; A finder connection unit that supports connection through mechanical coupling with the above range finder or wireless communication connection, A radar-based ball detection system connectable to a range finder, characterized in that it includes a control unit that calculates information on the trajectory of the moving golf ball and the position of the arrival point of the golf ball by analyzing the reception signal of the signal receiving unit for the golf ball moving according to the golf shot of the golfer, and calculates information on the characteristics of the hit according to the golf shot of the golfer by using the position of the target point, the position of the arrival point of the golf ball, and the trajectory information of the golf ball.

6. A radar-based ball detection system that can be connected to a range finder to detect a golf ball moving after being hit by a golfer on a golf course. A range finder that measures the distance from the position of the golfer to the target point aimed by the golfer and calculates the location information of the target point; and A launch monitor comprising a signal transmitter for transmitting a radar signal, a signal receiver for receiving a reflected wave signal reflected from the moving golf ball in response to a signal from the signal transmitter, a finder connection unit for supporting a connection through mechanical coupling with the range finder or a wireless communication connection, and a control unit for calculating a trajectory of the moving golf ball and position information of an arrival point of the golf ball by analyzing a received signal from the signal receiver for the moving golf ball, and configured to receive position information of the target point from the range finder and calculate ball characteristic information according to the golfer's golf shot using the calculated trajectory of the golf ball and position information of the arrival point; A radar-based ball detection system connectable to a range finder including:

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