KR101008183B1 - Target image shooting simulation system using common frame grabber - Google Patents

Abstract

An image shooting simulation system using a commercial frame grabber is disclosed. An image shooting simulation system according to an embodiment of the present invention includes an image display unit for displaying a target image, at least one gun for firing an invisible laser to the image display unit, and image recognition for recognizing the target image displayed on the image display unit. An image shooting simulation system comprising: a gun controller for outputting a trigger signal when triggering the firearm and simultaneously controlling air to be introduced into the firearm for recoil of the firearm; The digital data of the target image recognized by the image recognition unit is converted into a coordinate value and stored, and when the trigger signal of the firearm is received, the invisibility of the stored coordinate values is stored so that the system controller can determine whether the target is hit. A commercial frame grabber that detects a coordinate value corresponding to an impact point of a laser and provides the coordinate to the system controller; And a commercial input / output interface for receiving the triggered signal output from the gun controller and transferring the triggered signal to the commercial frame grabber.

Visual shooting, commercial frame grabbers, invisible lasers, coordinates, impact points

Description

Image shooting simulation system using commercial frame grabber {TARGET IMAGE SHOOTING SIMULATION SYSTEM USING COMMON FRAME GRABBER}

The present invention relates to an image shooting simulation system. More particularly, the present invention relates to an image shooting simulation system using a commercial frame grabber, which can reduce the development cost of a system. .

In general, multimedia technology such as a DVD player, a CCD camera, etc. can be used to experience virtual reality that is almost the same as the actual situation. For example, in the driving training courses of automobiles, motorcycles and aircrafts, drivers are trained by driving these devices under virtual reality where multimedia technology is introduced, and experience in reality in virtual reality where multimedia technology is introduced in various entertainment and game fields. Entertainment and games are played.

In addition, a multimedia technology has been introduced in gun shooting training, for example, video shooting simulation.

Video shooting simulation is a system mainly used in shooting training and arcade games. It is a system that targets live image or image using invisible laser.

This video shooting simulation system is a type of simulation system that can increase the effectiveness of training while solving the problems of high economic burden, safety risks, noise generation, and civilian access control near the shooting range.

Conventional video shooting simulation system is a frame grabber (capture grabber) for capturing the image, using a dedicated grabber for the system.

Here, the dedicated frame grabber is an expensive equipment rather than a commonly used product among computer parts, and is a CCD camera image processing board used for industrial purposes.

Conventional systems use expensive frame equipment and dedicated frame grabbers, which is expensive to develop.

In addition, the simulation system equipment, especially the computer main body, must use equipment that satisfies the operation of the grabber and the interface card, and additional driving costs for the operating system corresponding to the operating system of the computer system must be developed. This may cause a burden on the product cost.

An object of the present invention is to provide an image shooting simulation system using a commercial frame grabber that can implement an image shooting simulation using a commercial frame grabber rather than an expensive dedicated frame grabber.

Another object of the present invention is to provide an image shooting simulation system using a commercial frame grabber that can reduce system development costs and shorten the development period by implementing image shooting simulation using a commercial frame grabber. .

In order to achieve the above object, an image shooting simulation system according to an aspect of the present invention includes an image display unit for displaying a target image, at least one firearm for firing an invisible laser to the image display unit, and the target displayed on the image display unit. An image shooting simulation system including an image recognizing unit for recognizing an image, comprising: a gun controller for outputting a trigger signal when triggering the firearm and simultaneously controlling air to be introduced into the firearm for recoil of the firearm; The digital data of the target image recognized by the image recognition unit is converted into a coordinate value and stored, and when the trigger signal of the firearm is received, the invisibility of the stored coordinate values is stored so that the system controller can determine whether the target is hit. A commercial frame grabber that detects a coordinate value corresponding to an impact point of a laser and provides the coordinate to the system controller; And a commercial input / output interface for receiving the triggered signal output from the gun controller and transferring the triggered signal to the commercial frame grabber.

In this case, when the trigger signal is received, the commercial frame grabber detects a coordinate value corresponding to the impact point of the invisible laser among the coordinate values of the stored target image immediately before the trigger signal is received, and transmits the detected signal to the system controller. Can provide.

In this case, the commercial frame grabber detects and stores coordinate values whose brightness value is greater than or equal to a preset threshold value among the coordinate values of the target image, and stores a coordinate value corresponding to the center of the detected and stored coordinate values of the invisible laser. It can be detected by the coordinate value corresponding to the impact point.

According to another aspect of the present invention, an image shooting simulation system includes: at least one or more firearms for firing an invisible laser to an image display unit for displaying a target image; An image recognizing unit recognizing a target image including the invisible laser displayed on the image display unit; A commercial frame grabber; controlling a projection device to project the target image onto the image display unit; converting and storing the target image recognized by the image recognizing unit into coordinate values using the commercial frame grabber; And a system controller for detecting a coordinate value corresponding to an impact point of the invisible laser using the commercial frame grabber when the trigger signal of the firearm is received; And a firearm controller configured to transmit a trigger signal of the firearm to the system controller and simultaneously control air to be introduced into the firearm for kickback.

Other objects and features of the present invention in addition to the above objects will be apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, an image shooting simulation system using a commercial frame grabber according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Frame grabber is an imaging device that digitizes analog video signals appearing through video media into signals that can be processed by personal computers by digitizing them into defined bits per sample.

The object of the present invention is to implement an image shooting simulation using a commercially available commercial frame grabber rather than an expensive dedicated frame grabber used for professional use among frame grabbers.

1 is an image shooting simulation system using a commercial frame grabber according to an embodiment of the present invention.

Referring to FIG. 1, the system includes an air supplier 10, a system controller 20, a gun controller 30, a firearm 40, an image processor 50, a sound output unit 60, and an image display unit 70. Include.

The firearm 40 has a module for firing an invisible laser, and is powered by control by the gun controller 30, thereby firing the invisible laser.

In addition, the firearm 40 generates a recoil so that the gunner can feel the recoil generated in the actual firearm 40 when shooting by the gunner. When a trigger signal is input to the gun controller 30, the gun controller 30 is input to the gun controller 30. By applying air supplied from the air supplier 10 to the corresponding firearm 40 by the control by the control, gun recoil is generated.

In this case, the firearm 40 may include all kinds of firearms capable of shooting. For example, the firearm 40 may include a pistol, a rifle and a machine gun, and the number of firearms used in connection with the system is at least one. It may include, the number may vary depending on the situation.

The air supplier 10 is a device for inputting air to recoil the firearm 40, and supplies air to the firearm 40 through control by the firearm controller 30.

Of course, the air supplier 10 may also supply air to the firearm 40 through control by the system controller 20 rather than control by the firearm controller 30.

In this case, the air supplier 10 may be an air compressor.

The image display unit 70 is installed at a position facing the image processing unit 50 and displays a target image projected by the image processing unit 50.

In this case, the image display unit 70 preferably uses an anti-reflective screen.

The sound output unit 60 outputs a sound related to the target image displayed on the image display unit 70 or a gun shot when the firearm 40 is triggered. The installation position may vary depending on a situation. 70) is preferably provided on both the left and right sides.

The image processor 50 includes an image projector 51 and an image recognizer 52. The image projector 51 projects the target image to the image display unit 70 under the control of the system controller 20. .

In this case, the image projector 51 preferably uses an LCD or a DLP projector.

The image recognizer 52 recognizes the target image displayed by the image display unit 70 and the invisible laser included in the target image, converts the recognized image into digital data, and outputs the digital image to the system controller 20. It may include a filter that can recognize the laser.

At this time, the image recognition unit 52 uses a commercial frame grabber in the system controller 20, and since it is difficult to synchronize the commercial frame grabber with the image recognition unit 52, for example, a certain speed is 60 [frame / sec. It is preferable to include a high-speed IR (infrared) camera that can recognize the image above.

The firearm controller 30 is a device for controlling the firearm 40. When a control signal is input from the system controller 20, the firearm controller 30 controls the firearm 40 in accordance with the control signal, and a trigger signal is output from the firearm 40. When received, air from the air supply 10 is supplied to the firearm 40 to generate a firearm, and a trigger signal is provided to the system controller 20 so as to determine whether or not the target is hit.

In this case, when the gun controller 30 receives the control signal for starting the shooting from the system controller 20, the gun controller 40 supplies power to the gun 40 so as to turn on the invisible laser module provided in the gun. Can emit light.

Of course, when the gun controller 30 receives a control signal for turning on / off the gun power at a predetermined time period from the system controller 20, the gun controller 30 may emit the invisible laser at a predetermined time period. At this time, the control signal received by each gun controller 30 may have the same light emission period and different synchronization according to the corresponding firearm.

The system controller 20 includes a commercial frame grabber and a commercial input / output interface, and performs overall control of the image shooting simulation system.

For example, the system controller 20 may control the firearm by controlling the image projector to project an image target to the image display unit 70 and output a control signal for controlling the firearm power to the firearm controller 30. .

In this case, when each of the plurality of firearms fires a separate image target, the system controller 20 transmits a control signal for starting fire to the firearm controller 30 to apply power to the firearm, whereby the invisible laser ends shooting. Can be fired until the target is fired, and when multiple guns fire one image target, when the trigger signal is received, the target fired from the target image should be identified to detect the impact point of the gun's invisible laser. .

Here, the system controller 20 controls the invisible laser of each firearm to emit light at a predetermined time period so as to distinguish a plurality of firearms, and controls the emission time of the invisible laser of each firearm to be synchronized with the grab period of a commercial frame grabber. It is desirable to. For example, if the system is equipped with four firearms, the system controller 20 causes the invisible lasers of the first to fourth firearms to emit light sequentially at regular time intervals, where N time is set as a period and grab is N /. When performed every 4 hours, the first firearm is powered from 0 to 1 / N hours, the second firearm is powered from N / 4 to 2N / 4 hours, and the fourth firearm is 3N / 4 hours. By controlling the power to be applied for up to N hours, firearms can be classified based on the time of application when the trigger signal is received.

Furthermore, the commercial frame grabber included in the system controller 20 converts and stores digital data output from the image recognition unit 52 into coordinate values, and when a trigger signal is received, among the coordinate values of the target image stored sequentially. A coordinate value corresponding to the impact point of the invisible laser is detected from the coordinate values of the target image immediately before the trigger signal is received, and provided as the coordinate value at the triggering time. Here, the digital data may include a time for the corresponding image, and the commercial frame grabber may detect a coordinate value corresponding to the impact point at the time of triggering by comparing the image time with the triggering signal reception time.

In this case, the commercial frame grabber may receive a trigger signal output from the gun controller 30 through a commercial input / output interface.

At this time, the system controller 20 may determine whether the target is hit by comparing the target position with the coordinate value at the time of the trigger provided from the commercial frame grabber.

Of course, the commercial frame grabber may calculate the coordinate value of the invisible laser from the coordinate values of the image. For example, if a pixel having a brightness value greater than or equal to a threshold value specified for each pixel in the target image exists, the center of the existing pixels is present. The coordinates can be calculated as the impact point coordinates of the invisible laser.

Furthermore, the system controller 20 may control the image projector 51 to display the shooting result on one side of the image display unit 70 or may be displayed through a screen provided by the system controller 20 itself. have.

As described above, the system according to an embodiment of the present invention may implement a commercial shooting simulation by configuring a commercial input / output interface, a commercial frame grabber, and a gun controller 30, and thus do not need to use an expensive dedicated frame grabber. Configuration costs and development costs can be reduced.

In addition, the use of a commercially available frame grabber allows you to quickly update the product and reduce the cost of expensive equipment that can satisfy the interface with the existing dedicated frame grabber. System controller 20 may, for example, broaden the choice in selecting computers and peripherals.

In addition, in order to reduce the minute error between the coordinate value of the target image and the coordinate value of the image recognized by the image recognition unit 52, the image recognition unit 52, for example, adjusts the coordinate value through camera zero adjustment. In addition, the angle of the invisible laser emitted from the gun and the aiming point aimed by the user should be horizontal, but since it is difficult to make the horizontal state, the gun zero adjustment is performed to make the zero point data of the gun. The description is omitted because it may distract from the gist of

The system according to an embodiment of the present invention provides an image shooting simulation by applying the corrected data to the system after performing the calibration as described above.

FIG. 2 is a diagram for explaining the system controller shown in FIG. 1.

Referring to FIG. 2, the system controller 20 includes a commercial frame grabber 21 and a commercial input / output interface 22.

As shown in FIG. 2, the commercial frame grabber 21 receives the impact points of the target image and the invisible laser converted into digital data by the image recognition unit 52, converts the coordinates into coordinate values, and stores them. When the trigger signal is received from the sensor 22, the coordinate value corresponding to the point of impact of the invisible laser corresponding to the trigger point is detected and provided to a control unit of the system controller 20, for example, a central processing unit (CPU) (not shown). do.

At this time, the commercial frame grabber 21 converts and stores the digital data of the image converted by the image recognition unit 52 into a coordinate value, and the brightness value of the pixel among the stored coordinate values is greater than or equal to a preset threshold value. The coordinate value corresponding to the center pixel may be calculated as the coordinate value corresponding to the impact point of the invisible laser.

When the firearm 40 is triggered by a user, that is, a gunner, the firearm controller 30 transmits a trigger signal to the commercial frame grabber 21 through the commercial input / output interface 22, and the commercial frame grabber 21 is triggered. By detecting and providing the coordinate values at the time of triggering from the coordinate values of the stored image just before the signal is received, it is possible to determine whether the target hit.

Here, the reason for detecting the coordinate value from the target image immediately before the trigger signal reception is to correct the difference between the point of grabbing and the point of time when the trigger signal is received, and the point of time when the trigger signal is received and the actual trigger time Depending on the system, the process of detecting the coordinate values of the impact point for the trigger may also vary depending on the situation.

The commercial input / output interface 22 transmits the firearm control signal transmitted from the CPU of the system controller 20 to the firearm controller 30 when the shooting is started, thereby applying power to the firearm 40, and simultaneously using the commercial frame grabber ( 21) by transmitting a signal for the start of the shooting, to perform the real-time grab of the digital data for the image output from the image recognition unit 52.

Of course, the commercial input / output interface 22 may transfer the control signal for the shooting termination to the gun controller 30 and the commercial frame grabber 21 when the shooting is terminated to terminate the power off and real time grab of the gun.

In addition, when the trigger signal is received from the gun controller 30, the commercial input / output interface 22 transmits the triggered signal to the commercial frame grabber 21 to detect the coordinate value at the triggering time.

In this case, the commercial input / output interface 22 may provide the CPU with information about the trigger signal and supply the air of the air supplier 10 to the firearm through the control of the CPU. That is, the commercial input / output interface 22 receives a control signal for firearm recoil from the CPU and provides the control signal to the firearm controller 30, and the firearm controller 30 controls the air supply 10 based on the control signal, thereby controlling the firearm. Air can also be provided to cause gun recoil.

Of course, the control of the air supply for firearm recoil is more preferably carried out independently in the gun controller 30 at the time of the trigger signal generation.

3 is a flowchart of operation in a commercial frame grabber of a system according to an embodiment of the present invention.

Referring to FIG. 3, when shooting starts, the commercial frame grabber receives power to the gun through control of the system controller, and grabs the converted digital data of the target image in real time when a signal for starting shooting is received (S310). .

When the digital data of the target image is received through the real time grab, the process of converting the occasional digital data into coordinate values and storing them is sequentially performed (S320 and S330).

When the trigger signal is received while performing the above steps S320 and S330, that is, when the trigger signal is received from the commercial input / output interface, the invisibility is invisible from the coordinate values of the stored target image just before the trigger signal is received among the stored coordinate values. A coordinate value corresponding to the impact point of the laser is detected, and the coordinate value detected by the control unit, for example, the CPU of the computer is provided to determine whether the target is hit by using the detected coordinate value (S350).

3 illustrates a case where a target image is separately provided for each firearm, and a brief description of the case where a plurality of firearms are fired by a common target is as follows.

The commercial frame grabber can distinguish firearms by using different firing times of invisible lasers set for each of the plurality of firearms, thereby distinguishing the guns of shooters who hit a common target when shooting. Of course, the firing time of the gun can be confirmed by the CPU, and in the commercial frame grabber, only the coordinate values of the impact point for the trigger signal can be provided to the CPU, so that the firing result can be sorted by classifying the firearms hit by the CPU.

4 is an example operation flowchart for step S350 shown in FIG.

Referring to FIG. 4, step S350 sequentially compares brightness values of coordinate values of an image target immediately before a trigger signal reception time.

That is, it is determined whether the brightness value is greater than or equal to the threshold value by comparing the brightness value of the pixel (coordinate value) with the preset threshold value (S410 and S420).

If the brightness value is greater than or equal to the threshold value, the corresponding pixel is determined as the pixel in which the invisible laser is located, and the coordinate value of the pixel is stored (S430).

The processes S410 to S430 are performed on all pixels of the corresponding image. That is, it is determined by comparing the brightness value and the threshold value with respect to the coordinate values of all the pixels, and when there is an uncompared pixel, the brightness value and the threshold value of the next pixel, that is, the coordinate value, can be compared (S440, S460).

When the comparison of the brightness value and the threshold value for all the pixels of the corresponding image is performed in operation S440, the coordinate value corresponding to the impact point of the invisible laser is detected by using the coordinate values whose brightness value is determined to be greater than or equal to the threshold value.

That is, a coordinate value having an intermediate value is calculated by using a minimum value and a maximum value among a plurality of coordinate values, and the target coordinate value is provided to the CPU by determining the calculated coordinate value as a coordinate value corresponding to the impact point. It can be determined whether the hit of (S450).

Image shooting simulation system using a commercial frame grabber according to the present invention can be modified and applied in various forms within the scope of the technical idea of the present invention and is not limited to the above embodiments. In addition, the embodiments and drawings are merely for the purpose of describing the contents of the invention in detail, not intended to limit the scope of the technical idea of the invention, the present invention described above is common knowledge in the technical field to which the present invention belongs As those skilled in the art can have various substitutions, modifications, and changes without departing from the spirit of the present invention, it is not limited to the embodiments and the accompanying drawings. And should be judged to include equality.

1 is an image shooting simulation system using a commercial frame grabber according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining the system controller shown in FIG. 1.

3 is a flowchart of operation in a commercial frame grabber of a system according to an embodiment of the present invention.

4 is an example operation flowchart for step S350 shown in FIG.

<Description of Symbols for Main Parts of Drawings>

10: air supply

20: system controller

21: Commercial Frame Grabber

22: Commercial I / O Interface

30: gun controller

40: firearms

50: image processing unit

51: image projection unit

52: image recognition unit

60: sound output unit

70: video display unit

Claims (10)

An image display unit 70 for displaying a target image, at least one gun 40 for firing an invisible laser to the image display unit, and an image recognition unit 52 for recognizing the target image displayed on the image display unit; In the video shooting simulation system, A firearm controller (30) which outputs a trigger signal when triggering the firearm and controls air to be recoiled into the firearm at the same time; The digital data of the target image recognized by the image recognizing unit is converted into a coordinate value and stored, and when the trigger signal of the firearm is received, the system controller 20 may determine whether the target is hit. The system detects and stores coordinate values whose brightness value is greater than or equal to a preset threshold value, and detects coordinate values corresponding to the centers of the detected and stored coordinate values as coordinate values corresponding to the impact point of the invisible laser. A frame grabber 21 provided to the controller; And Input / output interface 22 for receiving the trigger signal output from the gun controller and transmitting to the frame grabber Image shooting simulation system comprising a. The method of claim 1, The input and output interface 22 Receives a control signal of whether or not the invisible laser of the firearm from the system controller and outputs to the firearm controller, The firearm controller 30 And an image shooting simulation system for controlling whether or not the gun emits light based on the control signal. The method of claim 1, The frame grabber 21 is And when the trigger signal is received, a coordinate value corresponding to an impact point of the invisible laser is detected and provided to the system controller among coordinate values of a stored target image immediately before the trigger signal is received. delete At least one gun 40 for firing an invisible laser to an image display unit 70 for displaying a target image; An image recognition unit 52 for recognizing a target image including the invisible laser displayed on the image display unit; And a frame grabber 212, controlling a projection device to project the target image onto the image display unit, and converting and storing the target image recognized by the image recognition unit into coordinate values using the frame grabber. When the trigger signal of the firearm is received, a coordinate value corresponding to the impact point of the invisible laser that can determine whether the target is hit is detected using the frame grabber, and when the firearm is plural, the plurality of firearms A system for controlling each non-visible laser to sequentially emit light at a predetermined time interval of a predetermined period to determine whether to hit the target for each of the plurality of firearms based on the light emission time of the invisible laser set for the firearm Controller 20; And Firearm controller 30 for transmitting the trigger signal of the firearm to the system controller, and at the same time to control the air for gun recoil flow into the firearm Image shooting simulation system comprising a. The method of claim 5, The system controller 20 Among the coordinate values of each of the stored image targets, the position of the target is compared with the coordinate value corresponding to the impact point of the invisible laser detected from the coordinate values of the image target immediately before the trigger signal of the firearm is received. Image shooting simulation system for determining whether the target hit. delete The method of claim 5, When the invisible laser of each firearm is emitted And an image shooting simulation system synchronized with the set grab time of the frame grabber. The method of claim 5, The system controller 20 An input / output interface for receiving a trigger signal of the firearm output from the firearm controller and outputting the trigger signal to the frame grabber, and receiving a control signal for controlling the emission of the invisible laser of the firearm from the system controller and providing the control signal to the firearm controller ( 22) Video shooting simulation system further comprising. The method of claim 5, The image recognition unit 52 Imaging fire simulation system including an infrared camera having a speed of 60 [frame / sec] or more per second.

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