CN107945610A - A kind of virtual fire fighting training system - Google Patents

Abstract

The invention belongs to the field of virtual emergency training equipment, and in particular relates to a virtual fire-fighting training device. The virtual fire extinguishing training device of the present invention has the advantages of strong interaction, safety, no pollution, reusability, and low cost. The fire extinguisher filled with tap water is driven by compressed air to form a fire extinguishing water column, which is sprayed on the projection display glass curtain wall with the video of the fire scene, and the position of the water column is detected by the photoelectric sensor array, and compared with the position of the fire source in the fire scene in the video By comparison, it can be judged whether the fire extinguishing position is correct, and the position and speed of video playback can be further controlled, so as to realize the virtual fire extinguishing operation. The virtual fire extinguishing device of the present invention can satisfy single and multiple experience, and plays a very important role in cultivating fire fighting ability, improving fire safety awareness, mastering fire extinguishing skills, cultivating cooperative fire extinguishing ability, and accumulating fire extinguishing operation experience.

Description

A virtual fire fighting training device

technical field

The invention belongs to the field of virtual emergency training equipment, and in particular relates to a virtual fire extinguishing training device.

Background technique

Fire is a kind of disaster with high frequency, great harm, and serious personal injury and property loss among the frequent disasters in human society. According to incomplete statistics, there are about 6 million to 7 million fires in the world every year, and most of these fires are caused by human factors. At the same time, people's awareness of fire protection is weak at this stage, and they lack fire fighting skills. When a fire occurs, most people lack the corresponding skills and handling experience, so it is very easy to cause huge property losses and even lose precious lives. Therefore, through fire-fighting drills, mastering the use of fire-fighting equipment and fire-fighting skills, and accumulating a certain amount of experience in fire-fighting disposal, it is extremely critical to extinguish the fire at the initial stage and reduce fire losses. The fire-fighting drill is the key way to master fire-fighting skills and accumulate fire-fighting experience, so fire-fighting drills are very important. At present, there are many kinds of equipment and methods for fire drills, but the traditional oil basin fire drills have disadvantages such as high risk, high cost, environmental pollution, and complicated preparations, which greatly restrict their application in fire drills. The virtual fire extinguishing system can effectively overcome the shortcomings of the oil basin fire extinguishing drill, but the existing virtual fire extinguishing system lacks interactivity and poor experience, and there is a huge difference between the fire extinguishing experience and the actual fire extinguishing operation. Most of the devices are emitted by infrared to replace the operation of fire extinguishers, and the infrared position is captured by means of cameras and other means, so as to realize virtual fire extinguishing. Obviously, the practice effect of the existing virtual fire extinguishing system is poor, and there are obvious deficiencies in mastering the use of fire extinguishers and fire extinguishing skills.

The virtual fire extinguishing device proposed by the present invention overcomes the disadvantages of poor experience of the existing virtual fire extinguishing system. At the same time, it has real fire extinguishing operation, strong interaction, and the fire extinguishing process is very similar to the real fire extinguishing operation. At the same time, the fire extinguishing tank in the virtual fire extinguishing system It can be reinstalled and used repeatedly, and the fire extinguishing agent uses tap water, etc., which has no pollution to the environment. The proposed virtual fire extinguishing system solves the shortcomings of the traditional fire extinguishing drill method and the current virtual fire extinguishing system, and provides means and methods for improving the fire awareness of the whole people, mastering the use of fire extinguishers, mastering fire extinguishing skills, and accumulating fire extinguishing experience.

Contents of the invention

The purpose of the present invention is to provide a virtual fire extinguishing system, through the virtual fire extinguishing operation to master the correct use of fire extinguishers, master the correct fire extinguishing method, and improve fire awareness and fire skills.

The virtual fire extinguishing system proposed by the present invention includes:

1. Refillable Fire Extinguisher

The fire extinguisher can be refilled with fire extinguishing water and compressed air efficiently and quickly. Through the use of the fire extinguisher, the fire extinguisher can spray out the fire extinguishing water column, so that the fire driller can obtain the real fire extinguisher operation experience and master the use method of the fire extinguisher.

2. Video playback system

The video playback system plays the video of the fire scene and projects it onto the video playback glass curtain wall.

3. Photoelectric sensor array

When the fire extinguisher is used by the trainer, the water jet of the fire extinguisher will be sprayed on the glass curtain wall of the video playback system, and the photoelectric sensor array can obtain the position of the jet water jet on the video playback curtain wall, providing logic control signals for the realization of virtual fire extinguishing.

4. Data acquisition and control computer

The data acquisition system collects the signal of the photoelectric sensor and transmits it to the control computer. The control computer calculates the position of the sprayed water column on the video playback screen according to the signal of the photoelectric sensor. According to whether the spray water column is in the effective position of the fire extinguishing fire source, the video playback speed and position of the extinguishing fire source in the fire scene are controlled, so as to realize the interaction between the fire extinguishing operation and the fire extinguishing process.

The specific plan is:

A virtual fire extinguishing training system, characterized in that it includes a projection display glass curtain wall, a photoelectric sensor transmitter array, a data line, a rear projection short-focus projector, a video signal line, a photoelectric sensor receiving end array, a data line, and a data acquisition card , control computer, fire extinguisher, photoelectric sensor transmitting end array, photoelectric sensor receiving end array, computer display, the fire extinguisher can spray water jets, and the driller can spray the fire extinguishing water jets to the projection display glass curtain wall by operating the fire extinguisher, and the control computer passes through The video signal line sends the video data to the rear-projection short-focus projector, and the rear-projection short-focus projector projects the fire scene to the projection display glass curtain wall. The photoelectric sensor transmitter array and the photoelectric sensor transmitter array are installed on the upper and left sides of the projection display glass curtain wall , the lower end and the right side of the projection display glass curtain wall are respectively equipped with a photoelectric sensor receiving end array and the fire extinguishing water column cuts off the emission and receiving end channels of the photoelectric sensor in the injection area, and its electrical signal passes through the data line, and the data acquisition card enters the control Computer, the computer can accurately judge the injection position of the fire extinguishing water column through the processing of the electrical signal, and the control computer sends the video data to the rear-projection short-focus projector through the video signal line, and the position of the fire source in the video can be determined in advance. Calculate the position of the sprayed water column on the projection display glass curtain wall by controlling the computer, compare it with the position of the fire source determined in advance, and judge whether it is within the effective range of fire extinguishing according to the comparison between the sprayed water column and the position of the fire source in the video, so as to control the computer to control the video The position and speed of the playback, so that the entire virtual fire suppression system can be realized.

The present invention generally has following technical effect:

1. The fire extinguisher can be refilled repeatedly, and tap water is used as the filling water source, which is low cost and environmentally friendly.

2. The operation method of the fire extinguisher is exactly the same as the actual fire extinguisher, so that the trainer can master the use method of the fire extinguisher.

3. The photoelectric sensor array can accurately judge the spraying position of the fire extinguisher jet water column on the screen, so as to compare it with the fire source position of the video, and accurately control the playback position and progress of the fire extinguishing video, so that the virtual fire extinguishing operation is highly interactive, and the exerciser Obtain a real fire-fighting experience, and at the same time enable the driller to quickly master fire-fighting skills and skills.

Description of drawings

Fig. 1 is a system scheme diagram of a virtual fire extinguishing device provided by the present invention.

Figure 2 is a schematic diagram of the water column fire extinguishing position detection.

Figure 3 is a schematic diagram of a reusable fire extinguisher.

Detailed ways

The structure and working principle of the present invention will be further described below in conjunction with design examples and accompanying drawings.

Please refer to the system scheme diagram of the virtual fire extinguishing device shown in FIG. 1 , the driller operates the fire extinguisher 11 to spray the fire extinguishing water column 12 onto the projection display glass curtain wall 1 . The control computer 9 sends video data to the rear-projection short-focus projector 4 through the video signal line 5 , and the rear-projection short-focus projector 4 projects the fire scene to the projection display glass curtain wall 1 . The photoelectric sensor transmitter arrays 2 and 13 are installed on the upper end and the left side of the projection display glass curtain wall 1 respectively, and the photoelectric sensor receiving end arrays 6 and 14 are respectively installed on the lower end and the right side of the projection display glass curtain wall 1 . The fire extinguishing water column 12 cuts off the channel of the photoelectric sensor in the injection area and the receiving end, and its electrical signal enters the control computer 9 through the data lines 3, 7 and the data acquisition card 8. The computer can accurately judge the fire extinguishing water column by processing the electrical signal. 12's in spray position. The control computer 9 sends the video data to the rear-projection short-focus projector 4 through the video signal line 5 . The position of the fire source in the playing video can be determined in advance, and the position of the spray water column 12 on the projection display glass curtain wall is calculated by the control computer 9, and compared with the position of the fire source determined in advance. According to the comparison between the sprayed water column 12 and the position of the fire source in the video, it is judged whether it is in the effective range of fire extinguishing, so as to control the position and speed of the computer 9 to control the video playback, so as to realize the whole virtual fire extinguishing system.

The principle of detecting the position of the water column 12 sprayed by the fire extinguisher 11 and the process of virtual fire extinguishing will be described in detail below. In Fig. 2, a photoelectric sensor transmitter array 2 is installed on the upper end of the projection display glass curtain wall 1, a photoelectric sensor receiver array 6, a photoelectric sensor transmitter array 2 and a photoelectric sensor receiver array 6 are installed at the lower end of the projection display glass curtain wall 1 The numbers are exactly the same, and there is a one-to-one correspondence between the positions of a transmitter and a receiver. A photoelectric sensor transmitting end array 13 is installed on the left end of the projection display glass curtain wall 1 , and a photoelectric sensor receiving end array 14 is installed on the right end of the projection display glass curtain wall 1 . The number of the photoelectric sensor transmitting end array 13 and the photoelectric sensor receiving array 14 are exactly the same, and the positions of one transmitting end and one receiving end are in one-to-one correspondence. The grid 15 is the position detection network of the jet water column 12 composed of optical signals between the photoelectric sensor transmitter array and the receiver array (infrared light source is used in practical applications, which is invisible to human eyes). When the spray water column 12 is sprayed on the glass curtain wall, the spray water column 12 will intercept the transmission path between some transmitters and receivers between the transmitter array 2 and the receiver array 6, and the corresponding receiver output level will occur Variety. At the same time, spraying the water column 12 will also cut off some transmission paths between the transmitting end array 13 and the receiving end array 14, and the output level of the corresponding receiving end will change. The signals of the receiving end arrays 6 and 14 are collected by the data acquisition card 8 into the control computer 9, and the control computer 9 can accurately determine the position of the sprayed water column 12 on the projection glass curtain wall 1 by analyzing the collected signals. The position 16 of the fire source in the fire scene video played by the control computer 9 can be determined in advance according to the fire scene video, so that the exact position where the fire scene video is projected onto the projection display glass curtain wall 1 can be determined. When the control computer 9 analyzes the position of the water jet through software analysis, and compares it with the fire source position 16 determined in advance, if the position of the sprayed water column 12 is within the area of the fire source position 16, then the control computer 9 controls the video playback of the fire source The position and speed are used to realize the playback of the extinguishing process of the fire source. Simultaneously, the playback speed and position of the fire extinguishing video can be controlled according to the sprayed water column 12 in different regions of the fire source position 16 (such as at the root of the fire source, the playback speed can be fast, as the playback speed at the top of the flame can be slowed down, or even Keep the current fire state to play)

At the same time, according to the injection time of the water column injection position in different areas of the fire source position 16, the accumulation is carried out. If the injection time does not meet the preset time length, then the video playback can be controlled by the control computer 9 to realize re-ignition. If the sprayed water column 12 area is not at the fire source position 16, then keep the current state of fire by the control computer 9 to play in a loop, and the fire source in the video will always be in a burning state.

Obviously, the whole fire extinguishing process can be effectively simulated by the above method. It has the characteristics of good dynamics and high degree of simulation, which significantly improves the interaction and experience of fire fighting.

Fig. 3 is a supporting reusable fire extinguisher 11 in the virtual fire extinguishing system of the present invention. In this fire extinguisher, 17 is a one-way water injection valve, and 18 is a one-way air injection valve. The fire extinguishing water 22 is injected into the tank through the one-way water injection valve 17, and the high-pressure air 20 is injected into the inside of the tank through 18. The control of the injection pressure can realize the control of the pressure in the tank body 24. Pressure gauge 19 is used for indicating the current tank body pressure. When the messenger presses the handle valve 25, the virtual fire extinguishing water 22 in the tank body 24 is driven by the high-pressure air 20, passes through the water outlet pipe 21, and sprays out from the nozzle 23, thereby forming the fire extinguishing water column 12. Through the above method, the fire extinguisher 11 can enable the trainer to obtain the real use process and operation experience of the fire extinguisher, and can realize repeated filling and use at the same time, greatly reducing the cost of the virtual fire extinguishing operation.

The above description is only a preferred implementation example of the present invention, but the present invention should not be limited to the content disclosed in the embodiment and accompanying drawings. Therefore, all equivalents or modifications that do not deviate from the spirit disclosed in the present invention fall within the protection scope of the present invention.

Claims (5)

1. A virtual fire-fighting training system, characterized in that: it includes a projection display glass curtain wall (1), a photoelectric sensor transmitter array (2), a data line (3), a rear-projection short-focus projector (4), a video signal line (5), photoelectric sensor receiver array (6), data line (7), data acquisition card (8), control computer (9), computer monitor (10), fire extinguisher (11), photoelectric sensor transmitter array ( 13), the photoelectric sensor receiving end array (14), the fire extinguisher (11) can spray water jets (12), and the driller operates the fire extinguisher (11) to spray the fire extinguishing water jets (12) onto the projection display glass curtain wall ( 1), the control computer (9) sends the video data to the rear-projection short-focus projector (4) through the video signal line (5), and the rear-projection short-focus projector (4) projects the fire scene to the projection display glass curtain wall (1 ), the photoelectric sensor transmitter arrays (2) and (13) are respectively installed on the upper and left sides of the projection display glass curtain wall (1), and the photoelectric sensor receiving end arrays (2) and (13) are respectively installed on the lower and right sides of the projection display glass curtain wall (1) end arrays (6) and (14), the fire extinguishing water column (12) cuts off the emission and receiving end channels of the photoelectric sensors in the spray area, and its electrical signals pass through the data lines (3), (7) and data acquisition card (8) Enter the control computer (9), the computer can accurately judge the injection position of the fire extinguishing water column (12) through the processing of the electrical signal, and the control computer (9) sends the video data to the rear projection short-focus projector through the video signal line (5) (4), the position of the fire source in the video playback can be determined in advance, and the position of the sprayed water column (12) on the projection display glass curtain wall is calculated by the control computer (9), and compared with the position of the fire source determined in advance, according to The sprayed water column (12) is compared with the position of the fire source in the video to determine whether it is within the effective range of fire extinguishing, thereby controlling the computer (9) to control the position and speed of video playback, thereby realizing the entire virtual fire extinguishing system. 2. A virtual fire extinguishing training system according to claim 1, characterized in that: the fire extinguisher (11) includes a one-way water injection valve (17), a one-way gas injection valve (18), a pressure gauge (19 ), high pressure air (20), water outlet pipe (21), fire extinguishing water (22), nozzle pipe (23), tank body (24), handle valve (25). Inject fire extinguishing water (22) into the tank, inject high-pressure air (20) into the tank through (18), and control the pressure inside the tank (24) by controlling the injection pressure of the compressed air (20). The gauge (19) is used to indicate the current tank pressure. When the messenger presses the handle valve (25), the virtual fire extinguishing water (22) in the tank (24) is driven by the high-pressure air (20). The water outlet pipe (21) sprays out from the nozzle (23), thereby forming a fire extinguishing water column (12). 3. A virtual fire extinguishing training system according to claim 1, characterized in that: the photoelectric sensor transmitter array (2) and the photoelectric sensor receiver array (6) have exactly the same number, and one transmitter and The positions of one receiving end are in one-to-one correspondence, the number of photoelectric sensor transmitting end arrays (13) and photoelectric sensor receiving arrays (14) are exactly the same, and the positions of one transmitting end and one receiving transmission end are in one-to-one correspondence. 4. A virtual fire extinguishing training system according to claim 1, characterized in that: the spray water column (12) position detection grid grid ( 15), when the spray water column (12) is sprayed on the glass curtain wall, the spray water column (12) will cut off the transfer between some transmitters and receivers between the transmitter array (2) and the receiver array (6) path, the output level of the corresponding receiving end will change, and at the same time, spraying water column (12) water column will also cut off the transfer between some transmitting end and receiving end between the transmitting end array (13) and receiving end array (14) path, the corresponding receiver output level will change. 5. A virtual fire extinguishing training system according to claim 1, characterized in that: said virtual fire extinguishing training system determines in advance that there is a fire source location (16), when the control computer (9) obtains the water column injection through software analysis Compared with the fire source position (16) determined in advance, if the spray water column (12) position is within the area range of the fire source position (16), then the control computer (9) controls the fire source video playback position and speed To realize the playback of the extinguishing process of the fire source. At the same time, the playback speed and position of the fire extinguishing video can be controlled according to the different areas of the sprayed water column (12) at the fire source position (16). (16) The injection time of different areas is accumulated. If the injection time does not meet the preset time length, the control computer (9) can control the video playback to achieve re-ignition. If the injection water column (12) area is not in the fire source position (16), then by controlling the computer (9) to keep the current state of fire for loop playback, the fire source in the video will always be in a burning state.