TWI790544B - Method for generating protective air pressure difference with peripheral wind outlets device - Google Patents

Abstract

A method for generating protective air pressure difference with peripheral wind outlets device, comprise: using a human recognition system for human recognition, when a human is detected, human range coordinates are generated, which is based on the projection coordinates of the protective space definition; define the individual projection coordinates of the air outlets of the air supply devices and the air outlets of the exhaust devices in the protective space; calculate one of the center coordinates of the human range coordinates; and based on the human's range coordinates, define the air outlets of the air supply devices and the air outlets of the air exhaust devices corresponding to the range coordinates of the character as a first range circle, so that the wind speed generated by all the air outlets of the air supply devices and the air outlets of the air exhaust devices in the first range circle is different from the other from the air outlets of the air supply devices and the air outlets of the air exhaust devices in the first range circle, and then form a first differential pressure range circle.

Description

Peripheral method of generating a protective air pressure differential

The present invention relates to a wind field system, in particular to a method for generating a protective air pressure difference around the perimeter.

Severe special infectious pneumonia (Coronavirus disease 2019, abbreviated: COVID-19, referred to as new coronary pneumonia), is one of the most deadly epidemics in human history, and has infected more than 100 million people. Since COVID-19 is a disease transmitted through the respiratory tract, it is an epidemic that is likely to cause large-scale infection, just like the cold virus.

Due to the large-scale global infection of COVID-19, it has led to major problems such as the strict control of global infectious diseases, the collapse of the medical system, and the impact of the economic system. The medical system itself, because it has to treat patients with COVID-19, has instead become the most important place for infectious disease control. Therefore, due to the high infectivity of COVID-19 patients in the ward, it is a priority to allow them to enter the negative pressure ward to prevent the virus in the ward from spreading to other places outside the ward. In addition, medical staff who come into contact with COVID-19 patients must also wear protective clothing and other equipment to prevent them from being infected.

Even if the ward is a negative pressure ward, and has gone through the standard wearing procedures and disinfection procedures of protective clothing, it is still unavoidable for medical staff to be infected during the treatment of COVID-19 patients. Based on the symptoms of nosocomial cluster infection caused by No. In this case, doctors are infected during the process of diagnosing and treating patients. It can be seen that there is considerable room for improvement in the existing infectious disease control mode of protective clothing with negative pressure wards.

Therefore, how to configure an active air protection system for medical staff or other related personnel in the infectious disease control ward or other application places that require user protection, so that the local surroundings of the medical staff or these personnel are protected by positive pressure. Covering and forming a protective layer to further reduce the risk of virus or bacterial infection of medical staff or other personnel from patients in infection control wards or other application places has become an important issue in the development of active protection technology.

In view of this, the present invention proposes a method for generating a protective air pressure difference around the perimeter, using the principle of fluid mechanics to identify the existence and position of a person through a person identification system, and then controlling the matrix wind field generation system to correspond to the person The space in the space produces a flow velocity different from other parts, so as to generate positive or negative pressure in the space where the character exists, so as to produce the special technical effect of the air shield on the character.

In order to achieve the above-mentioned purpose, the present invention proposes a method for generating a protective air pressure difference around the perimeter, which is applied to a protective space equipped with a person identification system and a matrix type wind power generation system. The matrix type wind power generation system has separately configured An air supply matrix and an exhaust matrix on the top and bottom of the protected space, the air supply matrix and the exhaust matrix each have a plurality of air supply devices and a plurality of exhaust devices, and the air supply devices and the exhaust devices are connected to each other Facing each other, each of the air supply device and the exhaust device has a plurality of peripheral air supply outlets and a plurality of peripheral air exhaust outlets, including: using the person recognition system to perform person recognition, when a person is detected, a person is generated Range coordinates, the character range coordinates are defined according to the projected coordinates of the protective space; define the air supply The individual projection coordinates of the air supply outlets of the device and the exhaust outlets of the exhaust devices in the protected space; calculate one of the center coordinates among the coordinates of the character range; and define the range corresponding to the character according to the coordinates of the character range The air outlets of the air supply devices and the air exhaust outlets of the air exhaust devices in the coordinates are a first range circle, so that the air supply outlets and the air outlets of all the air supply devices in the first range circle The wind speed produced by the air outlets of the air exhaust device is different from the wind speed produced by the air supply ports of the air supply devices not in the first range circle, and the wind speed produced by the air outlets of the air exhaust devices, thereby forming a first A differential pressure range circle.

The detailed features and advantages of the present invention are described in detail below in the implementation mode, and its content is enough to make any person familiar with the related art understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of the patent application and the drawings , anyone skilled in the art can easily understand the purpose and advantages of the present invention.

1: Protective space

2: floor

3: Patient

100: People Recognition System

110: Character recognition controller

121, 122, 12N: people recognition sensor

200: Wind field control system

300: matrix wind power generation system

310-1, 310-2, 310-N, 330, 340, 350, 350N-M, 350-(N+1)-(M+1), 360, 360-N-M, 360-(N-1)- (M+1), 370: air supply device

310-C0, 350-C0, 360-C0: Center Range Circle

310-C1, 350-C1, 360-C1: First range circle

310-C2: second range circle

310-C3: Third Range Circle

310a, 320a, 350a, 370a: motors

310b, 320b, 320b, 350b, 370b: controllers

310c, 320c, 350c, 370c: air inlet

310d, 320d, 350d, 370d: fan

310e, 320e, 350e-1, 350e-2, 350e-3, 350e-4, 370e-1, 370e-2, 370e-3, 370e-4: Damper

310f, 320f, 350f-1, 350f-2, 350f-3, 350f-4, 370f-1, 370f-2, 370f-3, 370f-4: screen

310g, 320g, 350g-1, 350g-2, 350g-3, 350g-4, 370g-1, 370g-2, 370g-3, 370g-4: air outlet

320-1, 320-2, 320-N: Exhaust device

400: Filtration system

500: ventilation duct

611, 611-1, 611-2, 611-3, 611-4, 612, 621, 622, 630, 640, 650: Wind

700: character

810-1, 810-2: character range

901, 902, 903: projection space

Figure 1 is a schematic cross-sectional view of a protected space in a specific embodiment of the present invention.

Fig. 2A is a system architecture diagram of the wind pressure generation system with protection function of the present invention.

Fig. 2B is a schematic diagram of the cross-sectional space configuration and sensing of the person recognition system of the present invention.

Figure 2C is a schematic diagram of the cross-sectional space configuration of the matrix wind field generating system of the present invention.

3A and 3B are functional block diagrams of the air blowing device 310 and the air exhausting device 320 of the present invention.

Fig. 4A is a schematic diagram of the upward projection space 901 of the protected space 1 of the present invention.

Fig. 4B is a schematic diagram of image data captured by the person recognition system of the present invention.

Figure 4C is a schematic diagram of the projected space of the upward-looking air supply device of the protected space 1 of the present invention.

Figures 4D to 4E are schematic diagrams of the projected space of the first circle defined by the central coordinates of the present invention.

Figure 4F to Figure 4L are schematic diagrams of different implementations of the air supply matrix of the present invention.

Fig. 5A to Fig. 5B are schematic diagrams of the projection space of the first circle defined by the central coordinates of the present invention, another embodiment.

Fig. 6A and Fig. 6B are the air supply surface and functional block diagrams of the four-in-one full-cover air supply device of the present invention.

Fig. 7A and Fig. 7B are the air supply surface and functional block diagrams of the peripheral air supply device of the present invention.

Figure 7C is a schematic diagram of the matrix arrangement of the peripheral air blowers of Figure 7A and Figure 7B of the present invention.

Fig. 7D to Fig. 7E are schematic diagrams of the movement of the first range circle with the peripheral air blowing device of the present invention moving with the person.

Figure 8A is a schematic view of the air supply side of the peripheral air supply device of the present invention.

Fig. 8B is a schematic diagram of the matrix arrangement of the peripheral air blowing device in Fig. 8A of the present invention.

Fig. 8C to Fig. 8D are schematic diagrams of the movement of the first range circle with the peripheral air blowing device of the present invention moving with the person.

Fig. 9A to Fig. 9C are flow charts of the method for producing a protective air pressure difference in full coverage according to the first embodiment of the present invention.

Fig. 10A to Fig. 10D are flow charts of the method for producing a protective air pressure difference around the periphery of the first embodiment of the present invention.

The present invention uses the natural law of fluid mechanics to detect the position of the character, and select the air supply device above and the exhaust device below the position corresponding to the character, so that the wind speed of the air supply device and the exhaust device at other non-character positions are different , so that the wind pressure of the space where the character is located is different from the wind pressure of the space where the character is not, and then can generate positive or negative pressure on the position of the character, and then realize the special technology of the air protection layer in the range of the character's position effect.

Please refer to FIG. 1 , which is a schematic cross-sectional view of a protected space in a specific embodiment of the present invention. The present invention uses several systems to create positive or negative pressure at the location of the character. Please also refer to FIG. 2A, which is a system architecture diagram of the wind pressure generating system with protection function of the present invention. As shown in FIG. 1 , the present invention employs a matrix-type wind power generation system 300 arranged on the top and bottom surfaces (on the floor 2 ) of the protected space 1 , so that the wind speed can be different in the range where the person 700 is located.

In order to achieve the purpose of making the wind speed of the character 700 different from other positions, the present invention adopts two systems: the character recognition system 100 and the matrix wind power generation system 300, and realizes the character 700 ( For example, the positive pressure at the location of the medical staff) and the negative pressure at the location of the patient 3, thereby achieving the special technical effect of the air protection layer. As shown in the figure, when the matrix-type wind power generation system 300 is controlled, the air supply device above and the exhaust device below the position of the character 700 are controlled so that the wind speed is "lower" than other air supply devices and exhaust devices next to it, a The pressure difference of hydrodynamics further makes the space where the character 700 is in a positive pressure state, as shown in FIG. 1 . Conversely, when the matrix wind power generation system 300 is controlled, the air supply device above and the exhaust device below where the character 700 is located, so that the wind speed is "greater than" other air supply devices and exhaust devices next to it, a hydrodynamic force will be generated. The pressure difference further makes the space where the character 700 is located a negative pressure condition. And the person recognition system 100 that confirms the person 700 position accurately, just very important.

There are many technologies available for the person recognition system 100 at present, for example, image recognition systems, ultrasonic image recognition systems, lidar image recognition systems, infrared thermal image recognition systems, pressure pad systems, etc., these person recognition systems can all be Effectively identify the presence and location of the moving person 700 . The installation position of the person recognition system 100 can be set according to the size of the protected space 1 and according to the specifications provided by the person recognition system 100 . As shown in FIG. 2B , the person recognition system 100 employs a person recognition controller 110 , a person recognition sensor 121 , a person recognition sensor 122 . . . a person recognition sensor 12N. In this embodiment, the person recognition sensors are arranged on the top surface of the protective space, and have interlaced scanning spaces, so the position of the person 700 and its moving state can be accurately sensed.

Next, please refer back to FIG. 2A and FIG. 2C , the wind pressure generation system with protective function includes several main systems: person recognition system 100 , wind field control system 200 , matrix wind power generation system 300 and filter system 400 . The person identification system 100 is used to identify at least one person and generate at least one person range coordinate of the at least one person in the protected space 1 , for example, the person 700 in FIG. 1 . The matrix wind field generation system 300 includes an air supply matrix and an exhaust matrix, wherein the air supply matrix is arranged on the top surface of the protected space 1 and the exhaust matrix is arranged on the bottom surface of the protected space 1 . The air supply matrix and the exhaust matrix each have a plurality of air supply devices and a plurality of exhaust devices, and the air supply devices and the exhaust devices are arranged facing each other (one-to-one, many-to-one or one-to-many modes can be adopted) And each has a coordinate of an air supply device and a coordinate of an exhaust device. The air supply devices and the air exhaust devices receive a wind field control command to generate corresponding air supply wind speeds and exhaust wind speeds. The filter system 400 uses a ventilation duct 500 to connect the air supply matrix and the exhaust matrix, so that the air flowing through the air supply matrix and the exhaust matrix can be filtered and sterilized. Wind field control system 200 (for example, adopts PLC/programmable logic series controller, server for industrial computer, etc.), connected to the person recognition system 100, the matrix wind field generation system 300, receives at least one person range coordinate transmitted from the person recognition system 100, and calculates one based on at least one person range coordinate Wind field control range parameters, and according to the wind field control range parameters are mapped to the air supply matrix and exhaust air matrix in the matrix wind field generation system 300, so as to select at least one of the first range circles of the air supply devices and these exhaust devices , and output the wind field control command, so that the air supply wind speed of the air supply devices in the first range circle is different from that of the air supply devices in the non-first range circle, and make the air supply speed of the air supply devices in the first range circle The exhaust wind speeds of the exhaust devices are different from those of the exhaust devices not within the first range circle.

As shown in Figure 2C, in the protected space 1, the air supply device 310-1, the air supply device 310-2 ... the air supply device 310-N are arranged on the top surface, and the air exhaust device 320 is arranged on the bottom surface. -1. The air exhaust device 320 - 2 . . . the air exhaust device 320 -N is arranged one to one up and down, and they are respectively connected to the air duct 500 . The direction (wind direction) of the whole air flow is: the wind 611, the wind 612... produced by the air supply device 310-1, the air supply device 310-2..., the air supply device 310-N, downward After blowing, the wind 621, wind 622... discharged by the exhaust device 320-1, the exhaust device 320-2 ... the exhaust device 320-N, and then before the filter system 400 The wind 630 becomes clean wind 640 after passing through the filter system 400, and then turns to the wind 650 at the air inlet of the air supply device 310-1.... And so on and on. And the main driving force of this air circulation is the air supply device 310-1, the air supply device 310-2...the air supply device 310-N, and the exhaust device 320-1, the exhaust device 320-2..... .Exhaust device 320-N.

Next, please refer to FIG. 3A and FIG. 3B , which are functional block diagrams of the air supply device 310 and the air exhaust device 320 of the present invention. The air supply device 310 includes: an air inlet 310c, connected to the ventilation duct 500; a fan 310d, arranged facing the air inlet 310c; a motor 310a, which drives the fan 310d, and after rotation, the fan 310d brings the air (wind 650) of the air inlet 310c into: the damper 310e, set on the fan 310d The air outlet of the fan 310d is used to control the air output of the fan 310d; the screen 310f is arranged at the air outlet of the air door 310e to even out the air output of the air door 310e; the air outlet 310g is arranged at the air outlet of the screen 310f , and facing the protective space 1; the controller 310b is connected to the motor 310a and the damper 310e, and after receiving the wind field control command (from the wind field control system 200), adjusts the speed of the motor 310a and the size of the damper 310e to adjust the air supply speed. The air exhaust device 320 includes: an air inlet 320c facing the protective space 1; a fan is arranged facing the air inlet 320c; a damper 320e is arranged at the outlet of the fan 320d to control the exhaust air volume of the fan 320d; a motor 320a, Drive the fan 320d, and after the rotation, the fan 320d will bring the air (wind 611) of the air inlet 320c into: the air outlet 320f is arranged at the air outlet of the damper 320e, facing the ventilation duct 500, and exhausts the air 621; the controller 320b, Connect the motor 320a and the damper 320e, and after receiving the wind farm control command (from the wind farm control system 200), adjust the speed of the motor 310a and the size of the damper 320e to adjust the exhaust wind speed.

It can be seen from the above description of FIG. 2 that the wind farm control system 200 of the present invention dominates the entire system flow. The wind field control system 200 generates a corresponding first range circle after calculation of at least one person range coordinate received from the person recognition system 100 . The air supply device and the air exhaust device delimited by the first range circle are the objects for which the wind field control system 200 mainly adjusts the wind speed. Generally speaking, the wind field control system 200 can issue wind field control commands in the manner of equal wind speed when there is no one in the state, that is, the wind speed generated by each air supply device is the same, and the wind speed generated by each air exhaust device is the same. The exhaust wind speed is the same. What's more, the exhaust wind speed is greater than the supply air wind speed, which is the basic condition for achieving a negative pressure ward.

Obviously, the present invention can generate the corresponding first range circle through the person range coordinates sent by the person recognition system 100, because the person recognition system 100 of the present invention and the matrix type wind power generation system 300 share the protective space, that is, , both have a common projection plane. wind field The control system 200 clearly grasps the character range coordinates of the person 700 generated by the person recognition system 100 and the coordinates of each air supply device and exhaust device of the matrix wind power generation system 300 , so the two can be mapped to each other.

However, compared with the range coordinates of the character 700 which can be a point or a linear range, the coordinates of the air supply device and the air exhaust device represented by the first range circle are discontinuous. Therefore, in fact, the character range coordinates of the character 700 cannot directly correspond to the coordinates of the air supply device and the air exhaust device represented by the first range circle, and therefore must be redefined.

Next, please refer to FIG. 4A to FIG. 4E , which are a specific embodiment of the present invention using the character range coordinates of the character 700 to set the first range circle. Fig. 4A is a top-view projection space 901 of the protected space 1, in which it can be seen that the person 700 moves from point P1 to point P2. At this time, for the person recognition system 100 (for example, an image recognition system or an infrared image recognition system, an ultrasonic image recognition system), the captured image data is shown in FIG. 4B, and the person recognition system in the protected space 1 In the projected space 902 identified by 100, the person 700 is displayed as a person range 810-1 and a person range 810-2. The person recognition system 100 transmits the person range coordinates representing the person range 810 - 1 and the person range 810 - 2 to the wind farm control system 200 . The wind farm control system 200 can calculate the center coordinates according to the character range coordinates of the character range 810-1 and the character range 810-2. Next, please refer to Figure 4C, the projection space 903 of the upward-looking air supply device in the protected space 1. After the wind field control system 200 converts the projection space to the projection space 903 of the air supply device, the character range 810-1, the character range The coordinates of the person's range of 810-2 are superimposed on the projection space 903 of the air supply device, wherein the center coordinates of point P1 and point P2 are (X1, Y1) and (X2, Y1) respectively. Next, the wind farm control system 200 can define the first range circle according to the character range coordinates of the character range 810-1 and the character range 810-2.

There are many specific embodiments of the manner in which the present invention defines the first range circle, for example, Center coordinate definition method, character range coordinate definition method. In the following, the center coordinate definition method will be introduced first, please refer to Figure 4D to Figure 4E. In Figure 4D, the wind farm control system 200 designates the central air supply device by the calculated central coordinates (X1, Y1) of point P1, and also specifies the central air exhaust device, that is, the central air supply device and the central exhaust air device The device is one that wraps around the coordinates of point P1. However, this embodiment is exactly: the air supply device and the exhaust device covering the central coordinates (X1, Y1) of the point P1 are one. Between air supply devices, or between four air supply devices. Therefore, the central coordinate of the point P1 may substantially correspond to at least one central air supply device and central air exhaust device. The quantity of the central air supply device and the central air exhaust device is also affected by the structure of the air supply matrix and the exhaust matrix. For example, Figure 4C is a matrix with a square compact structure, and the maximum number of central air supply devices associated with point P1 is 4; Figure 4K is a matrix with 340 square air supply devices arranged in a staggered manner, and the maximum number of central air supply devices associated with point P1 is 3 Figure 4L shows the hexagonal honeycomb structure matrix of the air supply device 330, and the maximum number of central air supply devices associated with point P1 is 3.

Returning to Figure 4D, the central coordinates (X1, Y1) correspond to an air supply device, which is defined by the wind farm control system 200 as the central air supply device 310-C0, and the nine air supply devices surrounding the central air supply device 310-C0 are It is defined as the air supply device 310-C1 in the first range circle, and the 14 air supply devices surrounding the air supply device 310-C1 in the first range circle are defined as the air supply device 310-C2 in the second range circle, and so on. For the air exhaust device, its procedure is the same, so it is not repeated here.

In Figure 4E, the character 700 has moved to point P2, and its central coordinates (X2, Y1) also correspond to an air supply device, which is defined by the wind field control system 200 as the central air supply device 310-C0, and surrounds the central air supply device 310-C0 The nine air supply devices outside it are then defined as the air supply device 310-C1 of the first range circle, and the 14 air supply devices outside the air supply device 310-C1 surrounding the first range circle The location is defined as the air supply device 310-C2 of the second range circle, and so on. For the air exhaust device, its procedure is the same, so it is not repeated here.

After defining the central air supply device (more than 1) as the central range circle and the first range circle, then control the corresponding central air supply device, and the wind speed of the first range circle air supply device is different from other wind speeds, for example, the central air supply device, The wind speed of the air supply device in the first range circle is lower than the wind speed of other air supply devices, which can cause positive pressure in the space of the first range circle. On the contrary, it can cause negative pressure. Or, the wind speed of the air supply device in the center is the smallest, the wind speed of the air supply device in the first range circle is the second, and the wind speed of the air supply devices in other parts is the largest; or, vice versa. These controls are all executed by the control program of the wind farm control system 200 . This is the control mode of the embodiments of Fig. 4D and Fig. 4E.

In addition to controlling the wind speed of the central air supply device and the air supply device of the central range circle (the embodiment of Fig. 4D and Fig. 4E), another way is to control the wind speed of other air supply devices of the non-central air supply device and the air supply device of the central range circle , so that it is less than or greater than the wind speed of the central air supply device and the air supply device of the central range circle. Please refer to FIG. 5A and FIG. 5B. In this embodiment, the central range circle is defined as all the air supply devices 310-C0 included in the character range coordinates of the character range 810-1. There are 9 air supply devices in the illustration. The air supply device 310-C1 surrounded by the first range circle is 24 in total; the air supply device 310-C2 of the second range circle outside the first range circle is surrounded; the third range circle outside the second range circle is surrounded. The blower 310-C3 of the range circle, and so on. Control the air supply devices of the first range circle, the second range circle and the third range circle so that the wind speeds of the air supply devices of the center range circle are different from those of the central range circle. Similarly, when the wind speed of the central range circle is minimum, positive pressure can be generated in its spatial range, otherwise, negative pressure can be generated.

In any way, the present invention can define the first range circle, the central range circle, etc. by the character range coordinates, and then use the wind speed in the central range circle or the first range circle and other In order to achieve the special technical effect of local space positive pressure or local space negative pressure. Conceptually, regardless of whether it is the center range circle or the first range circle that covers the coordinates of the character range, the present invention is based on the corresponding air supply device that covers the coordinates of the character range to generate positive or negative pressure in the space where the character is located .

In the embodiments shown in FIG. 4D and FIG. 4E , the size of the first range circle can cover the character range 810 - 1 and the character range 810 - 2 . This is an embodiment in which the size of the air supply device is 20 centimeters (cm) x 20 centimeters (cm), the size of the three air supply devices is 60 centimeters, and the shoulder width of an ordinary person is about 40 to 50 centimeters. If the size of the air supply device is larger or smaller, the number of projection planes of the air supply device corresponding to the character range 810-1 and the character range 810-2 may be different. In Figure 4F, the size of the air supply device 310 is 20 cm x 20 cm, and the character 700 can be covered by 6 to 12 air supply devices; in Figure 4G, the size of the air supply device 311 is 30 cm x 30 cm, and the character 700 can be covered by 4 to 9 air supply devices Covered by the air supply device; in Figure 4H, the size of the air supply device 312 is 40 cm x 40 cm, and the figure 700 can be covered by 2~6 air supply devices; in Figure 4I, the size of the air supply device 313 is 60 cm x 60 cm, the figure 700 can be covered by 1~4 air supply devices.

The method of defining the first range circle with the central coordinates is applicable when the size of the air supply device is small. However, when the size of the air supply device is larger, it may cause the situation that the first range circle is too large, as in the embodiment of Figure 4H, the first range circle may cover 12 air supply devices, and its range covers 240 cm x 240 centimeter, does not meet the actual needs. Therefore, Fig. 4J of the present invention has adopted another kind of approach, in an air supply device 370 of 40 centimeters x 40 centimeters, configured 4 air outlets, makes it become actually the air outlet of 20 centimeters x 20 centimeters.

The above embodiment of the air supply device is the technology of the full-cover air supply device, that is, the air supply port (or air outlet) of the air supply device is a way of blowing out the air over the entire area. In other words, the blower The area of square M cm x M cm is used to supply air at one time, and the wind speed sent by this area is the same.

Please refer to Figure 6A and Figure 6B, the four-in-one full-cover air supply device, the air supply device 370 includes: the air inlet 370c, connected to the ventilation duct 500; the fan 370d, set facing the air inlet 370c; the motor 370a, driving the fan 370d After turning, the fan 370d will bring the air (wind 650) of the air inlet 370c into: damper 370e-1, damper 370e-2, damper 370e-3, damper 370e-4, which are arranged at the outlet of the fan 370d for Control the air volume of the fan 370d; the screens 370f-1, 370f-2, 370f-3, and 370f-4 are respectively set on the damper 370e-1, the damper 370e-2, the damper 370e-3, and the damper The air outlet of 370e-4 is used to equalize the air output of damper 370e-1, damper 370e-2, damper 370e-3, damper 370e-4; air outlet 370g-1, air outlet 370g-2, air outlet 370g -3. Air outlet 370g-4, each set at the air outlet of screen 370f-1, screen 370f-2, screen 370f-3, screen 370f-4, and facing the protective space 1; controller 370b , connect the motor 370a and the damper 3703, after receiving the wind field control command (from the wind field control system 200), adjust the speed of the motor 370a and the size of the damper 370e-1, damper 370e-2, damper 370e-3, damper 370e-4, To adjust the wind speed of the air supply. The structure of the four-in-one full-coverage exhaust device can be the same as the four-in-one full-coverage air supply device, that is, multiple air inlets and multiple dampers. Among them, damper 370e-1, damper 370e-2, damper 370e-3, damper 370e-4 are adjustable opening proportional type. After the microcontroller 370b receives the wind field control command from the wind field control system 200, it controls the motor 370a and the damper 370e-1, the damper 370e-2, the damper 370e-3, and the damper 370e-4 to make the air outlet 370g-1 The wind 611-1, wind 611-1, wind 611-1, and wind 611-1 of the air outlet 370g-2, air outlet 370g-3, and air outlet 370g-4 may be different.

Next, another specific embodiment of the air supply device of the present invention, the peripheral air supply device and the peripheral air exhaust device will be described. Please refer to FIG. 7A to FIG. 7E for the shape, functional block diagram and embodiment of the method for defining the first range circle of the square peripheral air supply device 350 of the present invention. around Type air supply device 350 has included air supply port 350g-1, air supply port 350g-2, air supply port 350g-3, air supply port 350g-1, totally four. The air supply port 350g-1, the air supply port 350g-2, the air supply port 350g-3, and the air supply port 350g-1 are individually arranged on the periphery of the side of the peripheral air supply device 350 facing the protected space 1, as shown in FIG. 7A.

Please refer to Figure 7B, the peripheral air supply device 350 includes: an air inlet 350c, connected to the ventilation duct 500; a fan 350d, set facing the air inlet 350c; (Wind 650) brought in: four dampers 350e-1, damper 350e-2, damper 350e-3, damper 350e-4, arranged at the outlet of the fan 350d to control the air output of the fan 350d; four sieves Net 350f-1, sieve 350f-2, sieve 350f-3, and sieve 350f-4 are respectively arranged at the air outlets of air door 350e-1, air door 350e-2, air door 350e-3, air door 350e-4, It is used to equalize the air volume of damper 350e-1, damper 350e-2, damper 350e-3 and damper 350e-4; four air outlets 350g-1, air outlet 350g-2, air outlet 350g-3, air outlet 350g -4, each installed at the air outlet of the screen 350f-1, screen 350f-2, screen 350f-3, screen 350f-4, and facing the protective space 1; the controller 350b is connected to the motor 350a and the damper 3503. After receiving the wind field control command (from the wind field control system 200), adjust the rotation speed of the motor 350a and the sizes of the dampers 350e-1, 350e-2, 350e-3, and 350e-4, so as to adjust the air supply speed. The structure of the four-in-one peripheral air exhaust device can be the same as that of the four-in-one peripheral air supply device, that is, multiple air inlets and multiple air doors are adopted. Among them, damper 350e-1, damper 350e-2, damper 350e-3, damper 350e-4 are adjustable opening proportional type. After the microcontroller 350b receives the wind field control command from the wind field control system 200, it controls the motor 370a and the damper 370e-1, the damper 350e-2, the damper 350e-3, and the damper 350e-4 to make the air outlet 350g-1 The wind 611-1, wind 611-1, wind 611-1, and wind 611-1 of the air outlet 350g-2, air outlet 350g-3, and air outlet 350g-4 may be different.

Next, please refer to FIG. 7D and FIG. 7E. When the center point A of the person’s range coordinates moves to the center point B, the wind field control system 200 correspondingly sets the center range circle 350-C0 and the first range circle 350 -C1 moves, and the center circle moves from the air supply device 350N-M to the air supply device 350-(N+1)-(M+1).

Next, please refer to FIG. 8A to FIG. 8D , the embodiment of the shape of the hexagonal peripheral air supply device 360 and the method for defining the first range circle of the present invention. Compared with the embodiments in Fig. 7A to Fig. 7E, it can be seen that the difference between the two lies in the number of air outlets. The hexagonal peripheral air supply device 360 in No. 8A has six air outlets in total, which are divided into: air outlet 360g-1 , air outlet 360g-2, air outlet 360g-3, air outlet 360g-4, air outlet 360g-5, air outlet 360g-6, the surface facing the protective space is specifically arranged in the honeycomb shape of the 8B figure. In Figure 8C and Figure 8D, when the center point A of the person's range coordinates moves to the center point B, the wind field control system 200 correspondingly sets the central range circle 360-C0 and the first range circle 360-C1 Moving, the central range circle is moved from the air supply device 360N-M to the air supply device 350-(N-1)-(M+1).

As can be seen from the above description, the present invention uses the wind field control system 200 to control the matrix wind power generation system, and realizes the character 700 by defining the first range circle or the central range circle according to the character range coordinates of the character recognition system 100 The positive or negative pressure of the space in which it is located. Hereinafter, several embodiments of the control method will be cited to illustrate the positive and negative pressure generation and control method of the present invention.

First of all, please refer to Fig. 9A to Fig. 9C, the method for producing a protective air pressure difference in the first specific embodiment of the present invention, the main process includes the following steps:

Step S101: Use the person recognition system to perform person recognition. When a person is detected, a person range coordinate is generated, and the person range coordinate is defined according to the projected coordinate of the protective space.

Step S102: Define individual projection coordinates of the air supply devices and the air exhaust devices in the protected space.

Step S103: According to the range coordinates of the person, define the air supply devices and the exhaust devices corresponding to the coordinates of the range of the person as a first range circle, so that the air supply devices and the exhaust devices of the first range circle The wind speed generated by the device is different from the wind speed generated by the air supply devices and the air exhaust devices not in the first range circle, thereby forming a first pressure difference range circle.

The process in Fig. 9A has two main technical features: the first range circle is defined by the character range coordinates, and the wind speed in the first range circle is controlled differently from the non-first range circle. In this way, an air pressure difference can be generated between the first range circle and the non-first range circle. As for how to define the first range circle by character range coordinates, the present invention provides some specific embodiments:

The process in FIG. 9B provides an embodiment of defining the first range circle: the first range circle is the air supply device passing through the range coordinates of the person. That is to say, the character range coordinates indicate the boundary coordinates of the character range, and all the air supply devices or exhaust devices covering this boundary belong to the first range circle. The embodiment of Fig. 9B includes the following steps:

Step S111: The air supply devices and the air exhaust devices passing through the person's range coordinates are defined as the first range circle.

Step S112: Check whether there are still undefined air supply devices and air exhaust devices in the space surrounded by the first area circle, and if so, define it as a central area circle. Taking the embodiment in FIG. 4F as an example, the character 700 may be covered by 6-12 air supply devices, and the outermost circle is approximately the first range circle. That is, the number of air supply devices in the first range circle may be 6, 8 or 10, while the number of the central range circle may be 0, 1 or 2. Therefore, when the first range circle is defined in the manner of this embodiment, there may be no central range circle in some cases.

Step S113: Make the wind speed generated by the central area circle, the air supply devices of the first area circle, and the exhaust air devices be compared with the wind speeds of the air supply devices and the exhaust air devices of the non-central area circle, the first area circle The wind speeds generated by the device are different, thereby forming a first pressure difference range circle.

The first differential pressure range ring can be positive pressure or negative pressure, depending on the application scenario. Take the negative pressure ward as an example. To protect the medical staff, provide a positive pressure environment for the medical staff and a negative pressure environment for the patients. In contrast, the second differential pressure range ring is the opposite of the first differential pressure range ring.

Among them, when there is no central range circle, the present invention provides several embodiments of controlling the positive pressure generated by the air supply device in the first range circle, that is, embodiments of adjusting the wind speed of the air supply and the wind speed of the exhaust air. Adjust the positive pressure in the first range circle: I. By adjusting the air supply wind speed and exhaust wind speed of these air supply devices and these exhaust air devices in the first range circle to be less than the initial set value, other air supply devices, exhaust air The wind speed of the device is the initial set value; II. By adjusting the air supply wind speed and the exhaust wind speed of the air supply devices not in the first range circle and the exhaust air devices are greater than the initial set value. Adjust the negative pressure in the first range circle: I. By adjusting the air supply wind speed and exhaust wind speed of the air supply devices and exhaust air devices in the first range circle to be greater than the initial set value; II. The air supply wind speed and the exhaust wind speed of the air supply devices and the air exhaust devices in a range circle are less than the initial set value, and the first range circle is the initial set value. The above two methods, one is to adjust the wind speed within the first range circle, and the other is to adjust the wind speed outside the first range circle. The objects of both adjustments are different, but the technical effects obtained are the same.

When there is a central range circle, the present invention provides several embodiments for controlling the positive pressure generated by the air supply device in the first range circle, that is, embodiments for adjusting the air supply velocity and the exhaust velocity. Adjust the positive pressure in the first range circle: I. By adjusting the air supply wind speed and exhaust wind speed of the center range circle, the air supply devices in the first range circle, and the exhaust air devices to be less than the initial setting value, other The wind speed of the air supply device and the exhaust device is the initial setting value, and the wind speed of the part of the central range circle is smaller than the first range circle, that is, the wind speed of the central range circle is the minimum. Adjust the negative pressure in the first range circle: I. By adjusting the central range circle, the air supply devices in the first range circle, and the air supply wind speed and exhaust wind speed of these exhaust devices are greater than the initial set value, and the center The wind speed of the part of the range circle is greater than that of the first range circle, that is, the wind speed of the central range circle is the highest. The above two methods, one is to adjust the wind speed within the first range circle, and the other is to adjust the wind speed outside the first range circle. The objects of both adjustments are different, but the technical effects obtained are the same.

The process of FIG. 9C provides another embodiment of defining the first range circle: the first range circle is defined by the central coordinates. That is, the center coordinates calculated from the coordinates of the range of the person define the range of the first range circle. The embodiment of Figure 9C includes the following steps:

Step S121: Calculate one of the center coordinates of the character according to the range coordinates of the character.

Step S122: According to the center coordinate, select at least one of the air supply device and at least one of the air exhaust device closest to the center coordinate as a center circle. As mentioned above, the number of air supply devices in the central range circle may be 1, 2 or 4, taking Figure 4F as an example. In the embodiment of Fig. 4K and Fig. 4L, there may be 1, 2 or 3.

Step S123: Define the air supply devices and the air exhaust devices covering the central circle as a first circle, and check whether the range covered by the first circle completely covers the coordinates of the character range.

Step S124: If the range covered by the first range circle does not completely cover the character range coordinates, add and select at least one of the air supply device and the exhaust device that can cover the character range coordinates to the first range circle.

Step S125: Make the air supply devices of the central range circle and the first range circle The wind speeds produced by these exhaust devices are different from the wind speeds produced by these air supply devices and these exhaust devices that are not in the central range circle and the first range circle, thereby forming a first pressure difference range circle.

Comparing the embodiments in FIG. 9B and FIG. 9C, it can be known that the first range circles defined by the two may be the same or different. In the embodiment of Fig. 9B, there may be no center circle, but in the embodiment of Fig. 9C, there must be a center circle. Therefore, different methods of defining the first circle of scope may lead to the first circle of the same scope, or may be different. Once the central range circle and the first range circle are defined, the method for generating positive pressure and negative pressure is the same as that described above, and will not be repeated here.

The wind field control method above refers to the control method when the full-cover air supply device and the full-cover air exhaust device are used as examples. Hereinafter, the control method of the peripheral air blower and the exhaust device will be described. Please refer to Fig. 10A to Fig. 10C, the method of producing a protective air pressure difference around the perimeter, the main process includes the following steps:

Step S201: Use the person recognition system to perform person recognition. When a person is detected, a person range coordinate is generated, and the person range coordinate is defined according to the projected coordinate of the protective space.

Step S202: Define individual projected coordinates of the air outlets of the air supply devices and the exhaust outlets of the air exhaust devices in the protected space.

Step S203: Calculate one of the center coordinates of the person's range coordinates. Different from the full-cover air supply device, the air outlet of the peripheral air supply device is located at the periphery, while the air outlet of the full-cover air supply device is the entire surface. Therefore, the center of the air outlet of the peripheral air supply device is located at the center of each side, while the center of the air outlet of the full-cover air supply device is located at the center of the entire surface. Therefore, when the character range coordinates pass through a peripheral air supply device, it is possible to pass only one, two or three air outlets mouth. It is difficult to determine whether the passing position is inside or outside. Therefore, by using the center coordinates of the character range coordinates as a reference point, the relationship between the air outlets of the peripheral air supply device and the character range coordinates can be grasped more accurately.

Step S204: According to the range coordinates of the person, define the air supply outlets of the air supply devices and the exhaust outlets of the air exhaust devices corresponding to the range coordinates of the person as a first range circle, so that the first range circle The wind speed generated by the air outlets of all the air supply devices and the exhaust outlets of the air exhaust devices is different from that of the air supply outlets and exhaust devices of the air supply devices that are not in the first range The wind speeds generated by the exhaust outlets are different, thereby forming a first pressure difference range circle.

An embodiment of defining the first range circle is shown in FIG. 10B.

Step S211: According to the character range coordinates, select the air supply outlets and the air exhaust devices of the air supply devices that are larger and closest to the distance between the character range coordinates and the center coordinates as one A first range circle, and the air outlets of the first range circle can surround the range coordinates of the character. Different from the full-coverage air supply device, because the full-coverage air supply device can "cover" the coordinate range of the character, it forms a closed structure; and the peripheral air supply device has the air outlet located on the periphery, so the outlet through which the character coordinate range passes The outlets may be open to each other, but not connected to each other. Therefore, one embodiment of the present invention is to form a closed structure connected to each other by the air outlets.

Step S212: Make the wind speed generated by the air outlets of all the air supply devices and the air exhaust outlets of the air exhaust devices in the first range circle be smaller than the wind speed generated by the air supply devices not in the first range circle The wind speeds produced by the air outlets of the air outlets and the air exhaust devices form a positive pressure difference range circle.

Step S213: Make the wind speed generated by the air outlets of all the air supply devices and the air outlets of the air exhaust devices in the first range circle be greater than the wind speed of the air supply devices not in the first range circle The wind speeds produced by the air outlets of the air supply ports and the air exhaust devices form a negative pressure differential range circle.

Another embodiment of defining the first circle of range is shown in Fig. 10C.

Step S221: According to the range coordinates of the person, select the air supply outlets of the air supply devices and the exhaust outlets of the air exhaust devices corresponding to the person range coordinates as a first range circle.

Step S222: Make the wind speed generated by the air outlets of all the air supply devices and the air exhaust outlets of the air exhaust devices in the first range circle be smaller than the wind speed generated by the air supply devices not in the first range circle The wind speeds produced by the air outlets of the air outlets and the air exhaust devices form a positive pressure difference range circle.

Step S223: Make the wind speed generated by the air outlets of all the air supply devices and the air exhaust outlets of the air exhaust devices in the first range circle be greater than the wind speed generated by the air supply devices not in the first range circle The wind speeds produced by the air outlets of the air supply ports and the air exhaust devices form a negative pressure differential range circle.

Both steps S211 to S213 and steps S221 to S223 are methods for defining the first circle. In addition, the central range circle can be further defined, as shown in Figure 10D.

Step S231 : Define the air supply openings of the air supply devices and the air exhaust outlets of the air exhaust devices surrounding the central coordinate as a central circle. As in the aforementioned embodiment, the central circle here is based on the concept of encirclement, similar to steps S211 to S213. Since the central coordinate is a point, it may be located at the air outlet of the peripheral air supply device, or it may be located at the outlet of the air outlet. outside. Taking the embodiment in Figure 4F as an example, if it is just at the air outlet, the number of air outlets of the peripheral air supply device surrounding the central coordinates may be five, that is, an adjacent air outlet and the peripheral air supply The four air outlets of the device itself; it can also be one, that is, the air outlet. If the central coordinates are just between the two air outlets, then the number of air outlets of the peripheral air supply device surrounding the central coordinates is eight (closed surround), or two (open surrounded). If the central coordinate is exactly located between the four air outlets, then the number of air outlets of the peripheral sealing delivery device surrounding the central coordinate is four. So on and so forth. The concept of encirclement here can be interpreted not only by the concept of closed encirclement in steps S111 to S113 , but also by the concept of open encirclement. .

Step S232: Make the wind speed generated by the air outlets of all the air supply devices and the air exhaust outlets of the air exhaust devices in the first range circle be smaller than the wind speed generated by the air supply devices not in the first range circle The air speeds produced by the air supply outlets and the exhaust outlets of the air exhaust devices, and the wind speeds generated by the air supply outlets of all the air supply devices and the exhaust outlets of the exhaust devices in the central range circle The wind speed is lower than the wind speed generated by the air outlets of the air supply devices and the air outlets of the air exhaust devices in the first range circle, thereby forming a positive pressure difference range circle.

Step S233: Make the wind speed generated by the air outlets of all the air supply devices and the air outlets of the air exhaust devices in the first range circle be greater than the wind speed of the air supply devices not in the first range circle The air speeds produced by the air supply outlets and the exhaust outlets of the air exhaust devices, and the wind speeds generated by the air supply outlets of all the air supply devices and the exhaust outlets of the exhaust devices in the central range circle The wind speed is greater than the wind speed generated by the air outlets of the air supply devices and the air outlets of the air exhaust devices in the first range circle, thereby forming a negative pressure difference range circle.

In the embodiment of step S231 ~ step S233, its purpose is also in the creation center The wind speed of different layers such as the surrounding circle and the first range circle is expected to reach the state of increasing or decreasing wind speed in the first range circle, or from the central range circle to the first range circle to other parts.

Similarly, steps S231 to S233 may also control the air outlets outside the first range to make their speeds different from the wind speeds of the air outlets within the first range. The method is as mentioned above and will not be repeated here.

However, after detecting a person, who is the person judged? Whether it is a medical staff or a patient, the next thing is to know how to protect the character from the pressure difference. Hereinafter, several embodiments will be listed for illustration.

In one embodiment of the present invention, only one specific object has a label, that is, a single label, such as a medical staff or a patient, that is, the concept of either black or white. The specific method is: when the identified person has a label, form the first pressure difference range circle; These air supply devices and these air exhaust devices are a first range circle, so that the wind speed produced by these air supply devices and these air exhaust devices in the first range circle . The wind speeds generated by the air exhaust devices are different, thereby forming a second differential pressure range circle, and the second differential pressure range circle is opposite to the first differential pressure range circle.

Next, in another embodiment of the present invention, a double-label approach is adopted. That is, when the identified person has a first label, the first pressure difference range circle is formed; when the identified person has a second label, a second pressure difference range circle is formed, and the second pressure difference range circle is formed. The range ring is opposite the first differential pressure range ring.

The tag is a physical tag of a radio frequency identification tag, or a software tag (Soft Tag) generated by the person identification system to judge a specific person. The so-called software label, It is based on the judgment of the system of the person recognition device, for example, judging the material (protective clothing) worn by medical staff and the material (cotton clothing) worn by patients, and then judging their identities to generate corresponding software tags.

It can be known from the above various embodiments that the present invention realizes the recognition of the person 700, the definition of the range of the person (the first range circle) and the generation of different wind speeds, thereby generating different wind pressures around the person, and creating A protective wind pressure space, thereby realizing active protection for medical staff or other people who need to be protected. This active protection is equivalent to an air shield, and it is accompanied by the side, moving with the position of the medical staff. Therefore, implementing the technology of the present invention allows medical staff to add a layer of protective net to the medical staff under the condition that modern negative pressure wards still have defects, so as to reduce the possibility of medical staff being infected.

Although the technical content of the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any modification and modification made by those skilled in the art without departing from the spirit of the present invention should be covered by the present invention. Therefore, the scope of protection of the present invention should be defined by the scope of the appended patent application.

1: Protective space

2: floor

3: Patient

100: People Recognition System

300: matrix wind power generation system

700: character

Claims (25)

A method for generating a protective air pressure difference around the perimeter, which is applied to a protective space equipped with a person identification system and a matrix wind power generation system, and the matrix wind power generation system is respectively arranged on the top and bottom of the protective space An air supply matrix and an exhaust matrix, the air supply matrix and the exhaust matrix each have a plurality of air supply devices and a plurality of exhaust devices, the air supply devices and the exhaust devices face each other, and each of the air supply The device and the exhaust device each have a plurality of peripheral air supply outlets and a plurality of peripheral exhaust outlets, including: using the person recognition system to perform person identification, when a person is detected, a person range coordinate is generated, and the person range coordinate system Define according to the projection space of a protective space, the projection space of the protective space is identified and defined by the person recognition system; define the air supply outlets of the air supply devices and the exhaust outlets of the air exhaust devices in the protection A plurality of individual projection coordinates of the projected space of the space; calculate one of the center coordinates among the character range coordinates; and define the air supply outlets and the rows of the air supply devices corresponding to the character range coordinates according to the character range coordinates The air outlets of the wind devices are a first range circle, so that the wind speeds produced by the air outlets of the air supply devices and the air outlets of the exhaust devices in the first range circle are not the same as those of the air outlets of the air outlets. The wind speeds generated by the air outlets of the air supply devices and the air exhaust outlets of the air exhaust devices in the first range circle are different, thereby forming a first pressure difference range circle; wherein, the definition corresponds to the character range coordinates The air supply devices and the air exhaust devices are in the first range circle: according to the character range coordinates, select the air supply devices that are larger than and adjacent to the distance between the character range coordinates and the center coordinates The air outlets, the exhaust The exhaust outlets of the device form a first range circle. The method for generating a protective air pressure difference around the perimeter as described in Claim 1 further includes: forming the first pressure difference range circle when the identified person has a tag; when the identified person does not have the tag , according to the character range coordinates, select the air supply outlets and the exhaust outlets of the air supply devices that are larger than and adjacent to the distance between the character range coordinates and the center coordinates as a first range circle, so that the wind speeds produced by the air outlets of the air supply devices and the exhaust outlets of the exhaust devices in the first range circle are the same as those of the air supply devices not in the first range circle The wind speeds generated by the air outlets and the exhaust outlets of the air exhaust devices are different, thereby forming a second pressure difference range circle, which is opposite to the first pressure difference range circle. The method for producing a protective air pressure difference around the perimeter as described in claim 1, wherein, when the identified person has a first label, the first pressure difference range circle is formed; when the identified person has a second When labeling, a second differential pressure range ring is formed, and the second differential pressure range ring is opposite to the first differential pressure range ring. The method for generating a protective air pressure difference around the periphery as described in claim 2 and 3, wherein the tag is a physical tag of a radio frequency identification tag, or a software tag for identifying a specific person generated by the person identification system. The method for producing a protective air pressure difference around the periphery as described in claim 4, wherein the air supply speed of the air supply ports of the air supply devices and the air discharge ports of the air discharge devices within the first range is controlled The air supply wind speed and the exhaust wind speed of the air supply outlets of the air supply devices and the exhaust air outlets of the exhaust air devices are smaller than the exhaust wind speed. speed to produce a positive differential pressure range circle. The method for generating a protective air pressure difference around the periphery as described in claim 5, wherein the mode of adjusting the air supply wind speed and the exhaust air wind speed is by adjusting the air supply ports, the air supply devices of the air supply devices in the first range circle The air supply velocity and the exhaust velocity of the exhaust outlets of the exhaust devices are lower than the initial set values. The method for generating a protective air pressure difference around the perimeter as described in Claim 5, wherein the method of adjusting the air supply wind speed and the exhaust wind speed is by adjusting the air supply devices and the air exhaust devices that are not in the first range circle The supply air speed and exhaust air speed are greater than the initial set value. The method for generating a protective air pressure difference around the periphery as described in claim 4, wherein the air supply speed and the air speed of the air supply ports of the air supply devices in the first range circle and the exhaust ports of the exhaust devices are controlled. The exhaust wind speed is greater than the air supply wind speed and exhaust wind speed of the air supply ports of the air supply devices and the air exhaust ports of the air exhaust devices other than the first range circle, so as to generate a negative pressure difference range circle. The method for producing a protective air pressure difference around the periphery as described in claim 8, wherein the mode of adjusting the air supply wind speed and the exhaust air wind speed is by adjusting the air supply ports and the air supply devices of the first range circle. The air supply velocity and the exhaust velocity of the exhaust outlets of the exhaust device are greater than the initial set values. The method for generating a protective air pressure difference around the periphery as described in Claim 8, wherein the mode of adjusting the air supply wind speed and the exhaust air wind speed is by adjusting the air supply ports, the air supply devices of the air supply devices that are not in the first range circle. The air supply velocity and the exhaust velocity of the exhaust outlets of the exhaust devices are lower than the initial set values. The method for producing a protective air pressure difference in a peripheral type as described in Claim 1, wherein , the method of defining the air supply devices and the exhaust devices corresponding to the coordinates of the character range as the first range circle is: according to the coordinates of the range of the character, select the air supply devices corresponding to the coordinates of the range of the character The air supply ports and the air exhaust ports of the air exhaust devices form a first range circle. The method for producing a protective air pressure difference around the periphery as described in claim 11, wherein the air supply speed of the air supply ports of the air supply devices and the air discharge ports of the air discharge devices within the first range is controlled The air supply wind speed and the exhaust wind speed of the air supply outlets of the air supply devices and the exhaust outlets of the air exhaust devices are smaller than the exhaust wind speed, so as to generate a positive pressure difference range circle. The method for generating a protective air pressure difference around the periphery as described in claim 12, wherein the mode of adjusting the air supply wind speed and the exhaust air wind speed is by adjusting the air supply ports, the air supply devices of the air supply devices in the first range circle. The air supply velocity and the exhaust velocity of the exhaust outlets of the exhaust devices are lower than the initial set values. The method for generating a protective air pressure difference around the periphery as described in claim 12, wherein the method of adjusting the air supply wind speed and the exhaust wind speed is by adjusting the air supply devices and the air exhaust devices that are not in the first range circle The supply air speed and exhaust air speed are greater than the initial set value. The method for generating a protective air pressure difference around the periphery as described in claim 11, wherein the air supply wind speed and the air speed of the air supply ports of the air supply devices in the first range circle, the air discharge ports of the exhaust devices are controlled The exhaust wind speed is greater than the air supply wind speed and exhaust wind speed of the air supply ports of the air supply devices and the air exhaust ports of the air exhaust devices other than the first range circle, so as to generate a negative pressure difference range circle. The method for producing a protective air pressure difference in a peripheral type as described in claim 15, wherein The way to adjust the air supply wind speed and exhaust wind speed is to adjust the air supply wind speed and exhaust wind speed of the air supply outlets of the air supply devices in the first range circle and the exhaust air outlets of the exhaust devices to be greater than the initial setting. value. The method for generating a protective air pressure difference around the periphery as described in claim 15, wherein the method of adjusting the air supply wind speed and the exhaust wind speed is by adjusting the air supply outlets, the air supply devices of the air supply devices that are not in the first range circle. The air supply velocity and the exhaust velocity of the exhaust outlets of the exhaust devices are lower than the initial set values. The method for producing a protective air pressure difference in the peripheral type as described in claim 4 or 11 further includes: defining the air supply ports of the air supply devices surrounding the central coordinate and the air discharge ports of the exhaust devices as A central range circle. The method for generating a protective air pressure difference in a peripheral type as described in claim 18, further comprising: controlling the air supply speed of the air supply ports of the at least one air supply device and the air discharge ports of the air exhaust device in the central range circle , The exhaust wind speed is different from the air supply wind speed and the exhaust wind speed of the air supply outlets of all the other air supply devices in the first range circle, and the exhaust air outlets of the exhaust devices. The method for generating a protective air pressure difference in a peripheral type as described in claim 19, wherein the air outlets of the central circle and all other air supply devices in the first circle are controlled, and the air outlets of the air exhaust devices are controlled. The air supply wind speed and exhaust wind speed of these air outlets are lower than the air supply wind speed and exhaust wind speed of the air supply outlets of the air supply devices and the exhaust air outlets of the air exhaust devices outside the first range circle, and the The air supply wind speed and the exhaust wind speed of the air supply outlets of the air supply devices and the exhaust outlets of the air exhaust devices in the central range circle are less than The air supply wind speed and exhaust wind speed of the air supply outlets of the other air supply devices and the air exhaust outlets of the air exhaust devices in the first range circle, so as to generate a positive pressure difference range circle. The method for generating a protective air pressure difference around the periphery as described in claim 20, wherein the method of adjusting the air supply velocity and the exhaust velocity is by adjusting the central area circle and all other air supply devices in the first area circle The air supply wind speed and the exhaust wind speed of the air supply outlets and the exhaust outlets of the exhaust devices are less than the initial set value. The method for producing a protective air pressure difference around the periphery as described in claim 20, wherein the mode of adjusting the air supply wind speed and the exhaust air wind speed is by adjusting all the other air supply winds not in the central range circle and the first range circle The air supply wind speed and the exhaust air wind speed of the air supply ports of the device and the air exhaust ports of the air exhaust devices are greater than the initial setting values. The method for generating a protective air pressure difference in a peripheral type as described in claim 19, wherein the air outlets of the central circle and all other air supply devices in the first circle are controlled, and the air outlets of the air exhaust devices are controlled. The air supply wind speed and the exhaust wind speed of the air outlets are greater than the air supply wind speeds of the air supply outlets and the air outlets of the air exhaust devices in all other air supply devices not in the central range circle and the first range circle and exhaust wind speed, and the air supply wind speed and exhaust wind speed of the air supply outlets of the air supply devices and the exhaust outlets of the air exhaust devices in the central range circle are greater than those of all the other ones in the first range circle The air supply wind speed and exhaust wind speed of the air supply ports of the air supply device and the air exhaust ports of the air exhaust devices are used to generate a negative pressure difference range circle. The method for generating a protective air pressure difference around the perimeter as described in claim 23, wherein the method of adjusting the air supply velocity and the exhaust velocity is by adjusting the central area circle and all other air supply devices in the first area circle The air supply outlets, the exhaust devices The air supply velocity and the exhaust velocity of the exhaust outlets are greater than the initial set values. The method for producing a protective air pressure difference around the periphery as described in claim 23, wherein the method of adjusting the air supply wind speed and the exhaust air wind speed is by adjusting all the other air supply winds not in the central range circle and the first range circle The air supply wind speed and the exhaust air wind speed of the air supply ports of the device and the air exhaust ports of the air exhaust devices are lower than the initial setting values.

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