TWI440816B - Target device and impact position detection method - Google Patents

Description

Target device and method for detecting the position of the impact point

The invention relates to a target device, in particular to a target device capable of knowing the position of a projectile point by using fewer sensing units.

Shooting or darts is a common and interesting game. According to different game occasions, the scores of the target device can be roughly divided into two categories: manual scoring and electronic scoring.

The dart target device used in manual scoring can be made of cardboard or plastic, which is low in cost and easy to obtain, but relies on manual scoring, which is time consuming and inconvenient to use.

Electronic Targeting Device As shown in the first figure, the electronic target device 1 includes a target surface 10, a cushion 11, a thin film circuit 12, and a backing plate 14. The target surface 10 is used to block the impact of the shot; the cushion 11 is used to transmit the energy after the impact; the thin film circuit 12 includes a plurality of membrane switches 121, and the electronic target device 1 is based on the capacitance or voltage of the plurality of membrane switches 121. The change gets the position of the impact point.

When the shot hits the target surface 10, the impact force causes the cushion 11 to be deformed by the bending, and the impact force is transmitted to the thin film circuit 12 through the cushion 11, and the thin film circuit 12 strikes the plurality of thin films according to the impact point position of the target surface 10 being hit. One or more of the switches 121. However, the shooting object is usually a small object such as a BB bomb, and its shooting speed is fast, but the momentum is small, so that the thin film circuit 12 does not perform well.

In addition, the hit response efficiency of the thin film circuit 12 is related to the number of the plurality of membrane switches 121, that is, the more the number of the membrane switches 121, the better the hit response effect. However, the higher the required cost, and the thin film circuit 12 is not resistant to repeated impacts, it is easy to be damaged due to too large impact force, and there is a limitation in life in use.

In view of the above problems, the technical problem to be solved by the present invention is to reduce the number of components used in the target device, so as to improve the disadvantages of high cost and short life of the thin film circuit in the conventional target device. It is an object of the present invention to provide a target device that utilizes fewer sensing units to detect the impact vibration, thereby quickly obtaining the position of the impact point, achieving a compact structure and low cost.

In order to achieve the above object, an aspect of the present invention provides a target device including a target board, a sensing unit, a processing unit, and a prompting unit. The sensing unit is coupled to the target board, the processing unit is coupled to the plurality of sensing units, and the prompting unit is coupled to the processing unit. The sensing unit is disposed on one side of the target plate, and detects the vibration intensity of a position of the impact point when the target plate is impacted; the processing unit calculates a distance between the position of the impact point and the sensing unit according to the detection result of the sensing unit; The prompting unit outputs a prompt signal according to the calculation result of the processing unit.

In order to achieve the above object, the present invention provides another method for detecting a position of a projectile point of a target device, comprising: transmitting a sensing unit disposed on a side of the target plate when a target of the target device is impacted; Detecting the vibration intensity of the impact point of the target plate; the target device calculates a distance between the position of the impact point and the sensing unit according to the detection result; and the target device outputs a prompt signal corresponding to the position of the impact point according to the calculation result To provide user reference.

The above summary and the following detailed description are exemplary and are The scope of the patent application of the present invention is further explained. Other objects and advantages of the present invention will become apparent from the following description and appended claims.

The invention utilizes fewer sensing units to detect the position of the impact point, and can calculate the corresponding score of the position of the impact point to achieve the effect of accurately and quickly displaying the position of the impact point.

Please refer to FIG. 2A, which is a schematic diagram of an embodiment of a target device provided by the present invention. As shown in FIG. 2A, the target device 2a includes a back plate 20, a target plate 21, a sensing unit 210, a cushion 23, a prompting unit 25, and an operating unit 27. The target plate 21 is disposed in the back plate 20; the cushion pad 23 is disposed between the target plate 21 and the back plate 20; the sensing unit 210 is disposed on one side of the target plate 21 and interposed between the cushion pad 23 and the target plate 21 The prompting unit 25 and the operating unit 27 are disposed on the backboard 20.

The technical feature of the present invention is that the vibration intensity of the surface of the target plate 21 when being hit by a BB bomb or the like is detected by the simple sensing unit 210, and the different vibration intensity is converted into a corresponding one of the sensing signals; The processing unit (not shown) calculates the distance between the impact point position and the sensing unit 210 according to the sensing signal, or further calculates the score corresponding to the position of the impact point; the processing unit further controls the prompting unit 25 to output a prompt signal to provide the use. View the results of the shot.

In actual implementation, the target device 2a can be used on one side or both sides. The sensing unit 210 can be fixed on the target plate 21 by using an elastic colloid such as silicone rubber to detect the vibration intensity of the target plate 21 under impact, and output corresponding sensing signals according to different magnitudes of vibration intensity. Test The number can be voltage or current; the cushion 23 can be a soft or elastic material such as a foam pad for absorbing the vibration strength of the target plate 21, and protecting the electronic components such as the processing unit in the back plate 20 from vibration or being broken. The prompting unit 25 may be one or a combination of the display unit 251 and the speaker unit 253, wherein the display unit 251 displays information representative of the score for the user's reference, and the display unit 251 may be a liquid crystal display screen. The subtitle or the number is displayed around the target board 21; the display unit 251 can also be a plurality of LED lights, which are disposed behind the transparent target board 21 for displaying the position of the impact point position; the score unit 253 sends a fractional voice signal or represents Score music. The operation unit 27 can be a button or a knob, and provides a user input operation instruction, including opening, closing, or setting a game.

The material of the target plate 21 may be a rigid material such as an aluminum plate or a transparent polymer plate, and the shape thereof may be a circle or a square, and the surface thereof has a patterned area, and the number of regions divided by the patterned shape on the target plate 21 is matched. The sensing unit 210 may include one sensor 211 or a plurality of sensors 211, 213, and the sensors 211, 213 may be piezoelectric films or buzzers, and the number of the sensors 211, 213 may be two. Or more than two. As the number of patterned regions increases, the more score levels, the more sensors 211, 213 are needed, thereby detecting more accurate locations.

For a simpler annular patterned region, as shown in FIG. 2A, the shape of the target plate 21 is circular, and the patterned region on the surface thereof may include a center circle 21a, a first annular region 21b, and a second ring. The region 21c and the third annular region 21d are each designed to represent a fractional level corresponding to the position at which the impact point is located, and a single sensor 211 is used to detect the position of the impact point on the entire target 21. The position is preferably set at the center of the center circle 21a, and the vibration generated by the impact of the target plate 21 when the bomb is hit is detected by the sensor 211. The intensity is obtained, and the distance between the position of the impact point and the position of the sensor 211 is obtained. When the distance is closer to the vibration intensity sensed by the sensor 211, the voltage signal output by the sensor 211 is relatively large; the farther the distance is, the sensor 211 The smaller the sensed vibration intensity is, the smaller the voltage signal outputted by the sensor 211 is, thereby judging the patterned area where the impact point is located, and further converting the number of components.

For example, when a position of the impact point occurs at the point P1, since the vibration intensity generated by the sensor 211 disposed at the center of the center circle 21a is the same for the impact occurring at the same radius r _a , the target device 2a With a single sensor 211, it can be determined that the pattern area where the impact point position is located is within the center circle 21a or the plurality of loop regions 21b, 21c, 21d, and it is not known that the impact point position is on the target board 21. The half, the lower half, the left half, or the right half, so the scoring rank is less classified, and the game mode is simpler.

In an embodiment, the target device 2a uses two sensors 211, 213, which are respectively a first sensor 211 and a second sensor 213, and a preferred embodiment of the position is set at the same time in a circle. any of the target plate-shaped, wherein a diameter of 21, as provided on the diameter parallel or perpendicular to the ground, or any straight line passing through the center position of a circular target plate 21, the point of impact position occurs when there is a point P ₁ in when, by the processing unit 211 and a vibration intensity detected by the second sensor 213 of the first sensor, obtained from the first sensor 211 and the point P ₁ is r _1, and a second sensor 213 _2, to obtain the position of the point of impact and the position of the processing unit 211 according to the second sensor 213, and r ₁ and r ₂ of the first sensor and the distance r of the point P _1.

In more detail, the first sensor axis 211 and the second sensor 213 is located in the axis of symmetry, and point symmetry P ₁ P ₁ 'and the second sensing point 211 of the first sensor The detector 213 has the same r ₁ and r ₂ , so the first sensor 211 and the second sensor 213 detect the same vibration intensity of the two points P ₁ , P ₁ '. Thereby, the target device 2a can use the first sensor 211 and the second sensor 213 to determine not only that the pattern area where the impact point position is located is within the center circle 21a or the plurality of annular regions 21b, 21c, 21d. It is also known that the position of the impact point is in the upper half or the lower half of the target plate 21, so that the classification of the score is more than that of using a single sensor 211. If the first sensor 211 and the second sensor 213 are respectively disposed on a diameter parallel to the ground, the target device 2a can determine whether the impact point position is in the left half or the right half of the target 21.

Please refer to FIG. 2B, which is a schematic diagram of an embodiment of a target device provided by the present invention. The second B diagram is substantially the same as the second A diagram, and the difference is that the target device 2b includes three sensors using the sensing unit 210', in addition to the first sensor 211 and the second sensor 213, The third sensor 212. The first sensor 211, the second sensor 213, and the third sensor 212 may be arbitrarily disposed on the target plate 21'. In one embodiment, three sensors 211, 212, and 213 are respectively disposed on the target On the edge of the plate 21', for example, one is disposed above the target plate 21', and the other two are disposed on the left and right sides of the target plate 21', respectively. When a position of the impact point occurs at the point P1, the target device 2b detects the impact of the target plate 21' by the first sensor 211, the second sensor 213, and the third sensor 212, respectively. vibration strength, obtained from the first sensor 211 and the point P ₁ is r _1, the second sensor 213 and the distance from the point P ₁ is r _2, and the third distance sensor 212 and the point P ₁ For r ₃ , the processing unit (not shown) can accurately calculate the position of the impact point and the patterned area where the impact point is located according to the positions of the three sensors 211, 212, 213 and r ₁ , r ₂ and r ₃ , To further convert the number of components.

Please refer to FIG. 2C, which is a schematic diagram of an embodiment of a target device provided by the present invention. The second C picture is substantially the same as the second B picture, the difference being that the target plate 21' of the target device 2c has a rectangular shape, and the patterned area on the surface thereof may include a central square 21a' and a first block area 21b. ', the second box area 21c' and the third party frame area 21d', each of the box areas is designed to represent a score level corresponding to the position of the impact point position.

The vibration intensity of the impact point position is detected by the sensing unit 210' disposed behind the target plate 21', and the precise impact point position is calculated by the processing unit (not shown), and the calculation method can be as follows:

1. The coordinates of the first sensor 211 are defined as (x ₁ , y ₁ ), the coordinates of the second sensor 213 are (x ₂ , y ₂ ), and the coordinates of the third sensor 212 are (x ₃ , y ₃ ).

2. The first sensor 211, the second sensor 213, and the third sensor 212 respectively detect the vibration intensity of the impact point, and the distance between the position of the impact point and the first sensor 211 is converted to r ₁ by the processing unit, and The distance of the second sensor 213 is r ₂ , and the distance from the third sensor 212 is r ₃ .

3. Assuming that the coordinates of the unknown impact point P ₂ are (x, y), the position of the impact point is calculated by the following simultaneous equation:

Please refer to the third figure, which is a block diagram of an embodiment of a target device provided by the present invention. As shown in the third figure, the target device 2 includes a sensing unit 210, an analog-to-digital conversion unit 215, a processing unit 217, and an operation list. Element 27, memory unit 28, wireless transceiver unit 29, and prompt unit 25. The sensing unit 210 includes a first sensor 211, a second sensor 213, and a third sensor 212, which are respectively coupled to the analog-to-digital conversion unit 215, the analog-to-digital conversion unit 215, the operation unit 27, and the memory. The unit 28, the wireless transceiver unit 29 and the prompting unit 25 are respectively coupled to the processing unit 217.

When the target device 2 is struck by a BB bomb or the like, the first sensor 211, the second sensor 213, and the third sensor 212 respectively convert the detected vibration intensity into the first sensing signal. The second sensing signal and the third sensing signal are converted by the analog-to-digital conversion unit 215 and input to the processing unit 217. The processing unit 217 is configured according to the first sensing signal, the second sensing signal, and the third sensing signal. from the point of impact in terms of the size and the position of the first sensor 211 r _1, r is the distance from the impact point 213 and the position sensor _2, and a second position with the impact point of the third sensor 212 _{r. 3;} the memory unit 28 of storage The coordinates of a sensor 211, the second sensor 213, and the third sensor 212, and store the score represented by the patterned area, the game software, the number of hits, and the score.

The processing unit 217 receives an operation instruction via the operation unit 27 to operate the target device 2 in different game modes, including single player, multiplayer or different game difficulty levels; the processing unit 217 is based on the plurality of sensors 211, 212 The coordinates of 213 and r ₁ , r ₂ , and r ₃ calculate the coordinates of the position of the impact point, and further calculate the score represented by the graphical area where the impact point position is located; the processing unit 217 can also receive a remote control signal via the wireless transceiver unit 29. The user can remotely control the target device 2 by using a remote controller (not shown), and the remote control signal can be a user identity code, store a score, clear a score, clear a bullet mark, or display a score; The unit 25 may be one or a combination of the display unit 251 and the speaker unit 253. The prompt unit 25 displays the score number corresponding to the position of the impact point, the position of the impact point position, or the voice signal according to the calculation result of the processing unit 217.

Please refer to the fourth figure, which is a flowchart of an embodiment of detecting a projectile point position provided by the present invention. As shown in the fourth figure, first, the user sets the target device 2 in a normalized manner, including setting the distance between the user and the target device 2 and the quality of the fired object to overcome different distances and quality of the fired object. The influence of the target plate 21. The user must also set the level of the game and the number of people participating in the game; then, after the game starts, the target device 2 waits for the launch of a shot, and the target device 2 can judge whether there is a drop according to the waiting time; When the target plate 21 of the device 2 is impacted, the vibration intensity on the target plate 21 is detected by a sensing unit 210 disposed on the back surface of the target plate 21, wherein the sensing unit 210 includes at least one sensor 211, 212, 213. Converting different vibration intensities into corresponding sensing signals respectively (S401); the processing unit 217 calculates the distance between the position of the impact point and the plurality of sensors 211, 212, 213 according to different sensing signals, and according to the plurality of The position of the sensors 211, 212, 213 calculates the precise coordinates of the position of the impact point (S403); the processing unit 217 determines the score represented by the patterned area where the impact point position is located (S405); is calculated by the prompting unit 25 according to the processing unit 217 The result outputs a prompt signal corresponding to the position of the impact point, including a score corresponding to the position of the impact point position, the position of the impact point position, or the position of the impact point by the display unit 251, or The speaker unit 253 emits the score corresponding to the tone or off an alarm sound (S407).

In combination with the above-mentioned embodiments, it can be seen that the present invention effectively detects the position of the impact point by using a simple sensing unit, and further analyzes the score represented by the area where the impact point is located, and outputs the position of the impact point by using the prompting unit. The relevant information is for the user's reference. As such, the present invention The target device and the method for detecting the position of the impact point can solve the problems of high cost of the conventional target device and poor effect of the sensing sensitivity.

The drawings and the descriptions of the present invention are only examples of the present invention, and are not intended to limit the present invention. Anyone skilled in the art can make various changes and refinements according to the above description. The simple equivalent changes and modifications made by the scope of the invention and the description of the invention are still within the scope of the invention.

Convention:

1‧‧‧Targeting device

10‧‧‧ Target surface

11‧‧‧ cushion

12‧‧‧Film circuit

121‧‧‧ Membrane switch

14‧‧‧ Backplane

this invention:

2a, 2b, 2c‧‧‧ target devices

20‧‧‧ Backplane

21, 21'‧‧‧ target board

21a, 21b, 21c, 21d, 21a', 21b', 21c', 21d' ‧ ‧ patterned area

23‧‧‧ cushion

P ₁ , P ₂ , P ₁ '‧‧‧

r _a ‧‧‧radius

r ₁ , r ₂ , r ₃ ‧‧‧ distance

210, 210'‧‧‧Sensor unit

211‧‧‧first sensor

213‧‧‧Second sensor

212‧‧‧ third sensor

215‧‧‧ analog to digital conversion unit

217‧‧‧Processing unit

25‧‧‧Cue unit

251‧‧‧Display unit

253‧‧‧ Speaker unit

27‧‧‧Operating unit

28‧‧‧ memory unit

29‧‧‧Wireless transceiver unit

S401~S407‧‧‧ Method steps for detecting the location of the impact point

The first figure is a schematic diagram of an embodiment of a conventional target device; the second A to the second C are schematic views of an embodiment of the target device of the present invention; and the third figure is one of the target devices of the present invention. The block diagram of the example; and the fourth diagram is a flow chart of an embodiment of the method for detecting the position of the impact point of the present invention.

2a‧‧‧Target device

20‧‧‧ Backplane

21‧‧‧ Target

21a, 21b, 21c, 21d‧‧‧ patterned areas

23‧‧‧ cushion

P ₁ , P ₁ '‧‧‧

r _a ‧‧‧radius

r ₁ , r ₂ ‧‧‧ distance

210‧‧‧Sensor unit

211‧‧‧first sensor

213‧‧‧Second sensor

25‧‧‧Cue unit

251‧‧‧Display unit

253‧‧‧ Speaker unit

27‧‧‧Operating unit

Claims (7)

A target device includes: a target plate comprising a plurality of annular regions; a sensing unit disposed on a side of the target plate, the sensing unit detecting a vibration intensity of a target position of the target plate when being impacted, And outputting a corresponding sensing signal according to the vibration intensity of the impact point position; a processing unit calculates a distance between the impact point position and the sensing unit according to the detection result of the sensing unit; and a prompting unit, and The processing unit is coupled to output a prompt signal according to the calculated distance of the processing unit; wherein the sensing unit is a sensor, and the sensor is disposed at a center position of the target. A target device includes: a target plate; a sensing unit disposed on a side of the target plate, the sensing unit detects a vibration intensity of a target position of the target plate when the target is impacted, and a vibration according to the position of the impact point a sensing signal corresponding to the intensity output; a processing unit, calculating a distance between the location of the impact point and the sensing unit according to the detection result of the sensing unit; and a prompting unit coupled to the processing unit, according to The distance calculated by the processing unit outputs a prompt signal; wherein the sensing unit includes two sensors, and the two sensors are respectively disposed on a straight line passing through a center position of the target board, and the processing unit respectively According to the sensing signal and the two sensors The position gets the position of the impact point. The target device of claim 2, wherein the prompting unit is one of a display unit and a speaker unit or a combination thereof. The target device of claim 2, further comprising a backing plate for accommodating the target plate; and a cushioning pad disposed between the target plate and the backing plate. The target device of claim 2, wherein the sensing unit is a piezoelectric film or a buzzer. A method for detecting a position of a projectile point of a target device includes: detecting a impact point of the target plate by a sensing unit disposed on a side of the target plate when a target plate of the target device is impacted a vibration intensity of the position, the sensing unit outputs a corresponding sensing signal according to the vibration intensity of the impact point position; the target device calculates the impact point position and the sensing unit according to the sensing signal output by the sensing unit a distance between the target device and the target device outputting a prompt signal corresponding to the position of the impact point to provide a user reference; wherein the sensing unit is a sensor when the target When the target of the device is impacted, the sensing signal is output by the sensor disposed at a central position of the target. A method for detecting a position of a projectile point of a target device includes: detecting a impact point of the target plate by a sensing unit disposed on a side of the target plate when a target plate of the target device is impacted a sensing intensity of the position, the sensing unit outputs a corresponding sensing signal according to the vibration intensity of the impact point position; the sensing device according to the output of the sensing unit Calculating a distance between the position of the impact point and the sensing unit; and the target device outputs a prompt signal corresponding to the position of the impact point according to the calculation result of the distance to provide a user reference; wherein the sensing unit is The two sensors are respectively disposed on a straight line passing through a center position of the target plate; wherein the prompt signal is a score corresponding to the target position of the projectile point.