CN114909747A

CN114909747A - Wind pressure generating system with protection function and method for generating protective air pressure difference

Info

Publication number: CN114909747A
Application number: CN202111651836.4A
Authority: CN
Inventors: 刘志伟
Original assignee: Ruisheng Technology Co ltd
Current assignee: Ruisheng Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-12-31
Publication date: 2022-08-16
Also published as: CN218846352U

Abstract

The invention provides a wind pressure generating system with a protection function and a method for generating protective air pressure difference, which are applied to a protection space, and the wind pressure generating system with the protection function comprises: a human recognition system, a matrix type wind power generation system, a filtering system and a wind field control system; the wind field control system calculates a wind field control range parameter by using a character range coordinate transmitted by the character recognition system, and then the wind field control range parameter is mapped to the matrix type wind power generation system to select a first range ring, and a wind field control instruction is output to the matrix type wind power generation system, so that the wind speed of part of the first range ring in the matrix type wind power generation system is different from that of other parts, and the protection wind pressure is formed on the character.

Description

Wind pressure generating system with protection function and method for generating protective air pressure difference

Technical Field

The present invention relates to a wind field system, and more particularly, to a wind pressure generating system with protection function and a method for generating a protective air pressure difference.

Background

Severe specific infectious pneumonia (Coronavir disease 2019, abbreviation: COVID-19), one of the epidemic diseases which historically have been the most fatal in humans, has infected more than one hundred million people at present. Since COVID-19 is a disease transmitted through the respiratory tract, it is an epidemic disease easily causing large-scale infection, like the common cold virus.

Due to the global large-scale infection of COVID-19, serious problems of strict control of global infectious diseases, disc collapse of medical systems, impact of economic systems and the like are caused. The medical system itself must accept COVID-19 patients, and therefore, is the most important place for controlling infectious diseases. Accordingly, the ward receiving the COVID-19 patient is prioritized for entering the negative pressure ward due to the high infection, so as to prevent the virus in the ward from spreading to other places outside the ward. In addition, the medical personnel who contact the patient with COVID-19 must also wear protective clothing and other equipment to prevent infection.

Even if the ward is a negative pressure ward and passes through the standard wearing procedure, the disinfection procedure and the like of the protective clothing, the situation that medical personnel are infected in the process of treating the COVID-19 patient cannot be avoided. The condition of nosocomial mass infection caused by patients in taiwan hospital is that the doctor gets infected in the process of diagnosing and treating the patients. It can be seen that the existing protective clothing has considerable room for improvement in combination with the mode of infectious disease control in the negative pressure ward.

Therefore, how to configure an active air protection system for medical care personnel or other related personnel in an infectious disease control ward or other application places requiring user protection, so that the medical care personnel or the local periphery of each personnel is covered by positive pressure to form a protection layer thereon, so as to further reduce the risk of viral or bacterial infection of patients or other application places in the infectious disease control ward of the medical care personnel or other personnel, becomes an important subject for the development of active protection technology.

Disclosure of Invention

In view of the above, the present invention provides a wind pressure generating system with a protection function, which uses the principle of hydrodynamics to identify the existence and position of a person through a person identification system, and then controls a matrix type wind generating system to generate a flow rate different from other parts in a space corresponding to the person, so as to generate a positive pressure or a negative pressure in the space where the person exists, thereby generating an air shield for the person.

To achieve the above object, the present invention provides a wind pressure generating system with protection function, applied to a protection space, comprising: the system comprises a person identification system, a person identification system and a person recognition system, wherein the person identification system is used for identifying at least one person and generating at least one person range coordinate of the at least one person in the protection space; a matrix wind generating system, comprising an air supply matrix and an air discharge matrix, wherein the air supply matrix is configured on the top surface of the protection space and the air discharge matrix is configured on the bottom surface of the protection space, the air supply matrix and the air discharge matrix are respectively provided with a plurality of air supply devices and a plurality of air discharge devices, each air supply device and each air discharge device are arranged in a way of facing each other and are respectively provided with an air supply device coordinate and an air discharge device coordinate, and each air supply device and each air discharge device receive an air field control command to generate corresponding air supply speed and air discharge speed; the filtering system is connected with the air supply matrix and the air exhaust matrix through a ventilation pipeline, so that air flowing through the air supply matrix and the air exhaust matrix can be filtered and disinfected; and the wind field control system is connected with the character recognition system, receives the at least one character range coordinate, calculates a wind field control range parameter according to the at least one character range coordinate, maps the wind field control range parameter to the air supply matrix and the air exhaust matrix according to the wind field control range parameter so as to select each air supply device and each air exhaust device of at least one first range ring, and outputs the wind field control instruction, so that the air supply speed of each air supply device of the first range ring is different from the air supply speed of each air supply device of the non-first range ring, and the air exhaust speed of each air exhaust device of the first range ring is different from the air exhaust speed of each air exhaust device of the non-first range ring so as to form protection wind pressure for at least one character.

The present invention further provides a method for generating a protective air pressure difference, which is applied to a protection space provided with a human identification system and a matrix type wind power generation system, wherein the matrix type wind power generation system is provided with an air supply matrix and an air exhaust matrix which are respectively arranged on the top surface and the bottom surface of the protection space, the air supply matrix and the air exhaust matrix are respectively provided with a plurality of air supply devices and a plurality of air exhaust devices, each air supply device and each air exhaust device face each other, and the method comprises the following steps: performing character recognition by the character recognition system, and generating a character range coordinate when a character is detected, wherein the character range coordinate is defined according to the projection coordinate of the protection space; defining the respective projection coordinates of each air supply device and each air exhaust device in the protective space; and defining each air supply device and each air exhaust device corresponding to the character range coordinate as a first range ring according to the character range coordinate, so that the wind speed generated by each air supply device and each air exhaust device of the first range ring is different from the wind speed generated by each air supply device and each air exhaust device of the non-first range ring, thereby forming a first differential pressure range ring.

Optionally, the method further comprises: when the identified person has a label, forming the first pressure difference range ring according to the person range coordinate; when the identified person has no label, selecting each air supply device and each air exhaust device corresponding to the person range coordinate as a first range ring according to the person range coordinate, so that the air speeds generated by each air supply device and each air exhaust device of the first range ring are different from the air speeds generated by each air supply device and each air exhaust device of the non-first range ring, and further forming a second differential pressure range ring, wherein the differential pressure of the second differential pressure range ring is opposite to that of the first differential pressure range ring.

Optionally, when the identified person has a first label, forming the first pressure difference range ring according to the person range coordinate; when the identified person has a second tag, a second pressure differential range loop is formed, the second pressure differential range loop having a pressure differential opposite that of the first pressure differential range loop.

Alternatively, the manner of defining each of the air blowing devices and each of the air discharging devices corresponding to the person range coordinates as the first range ring is: each of the air blowing devices and each of the air discharging devices passing through the character range coordinates are defined as the first range ring.

Optionally, the air supply speed and the air exhaust speed of each air supply device and each air exhaust device in the first range ring are controlled to be smaller than those of each air supply device and each air exhaust device which are not in the first range ring.

Optionally, the air supply speed and the air exhaust speed of each air supply device and each air exhaust device of the first range ring are controlled to be greater than those of each air supply device and each air exhaust device which are not the first range ring.

Drawings

Fig. 1 is a schematic cross-sectional view of a protection space according to an embodiment of the present invention.

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

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

Fig. 2C is a schematic cross-sectional spatial arrangement of the matrix-type wind generating system of the present invention.

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

Fig. 4A is a schematic view of an upward projection space 901 of the protected space 1 according to the present invention.

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

Fig. 4C is a schematic projection space diagram of the top-view blower of the protection space 1 according to the present invention.

Fig. 4D to 4E are schematic projection space diagrams of defining the first range by the center coordinates according to the present invention.

Fig. 4F to 4L are schematic views of different embodiments of the blowing matrix of the present invention.

Fig. 5A to 5B are schematic diagrams of projection spaces with center coordinates defining a first range ring according to another embodiment of the present invention.

Fig. 6A and 6B are a functional block diagram and an air blowing surface of a four-in-one type all-covering type air blowing device according to the present invention.

Fig. 7A and 7B are a blowing surface and a functional block diagram of the peripheral blowing device according to the present invention.

Fig. 7C is a schematic diagram of a matrix arrangement of the peripheral air blowing devices of fig. 7A and 7B according to the present invention.

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

Fig. 8A is a schematic view of an air blowing surface of the peripheral air blowing device of the present invention.

FIG. 8B is a schematic diagram of a matrix arrangement of the peripheral air blowing device of FIG. 8A according to the present invention.

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

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

Fig. 10A to 10D are flowcharts of a method for peripherally generating a protective air pressure difference according to a first embodiment of the present invention.

Fig. 11 is a schematic view of another embodiment of the present invention.

In the figure:

1: a protection space; 2: a floor; 3: a patient; 100: a person identification system; 110: a person recognition controller; 121. 122, 12N: a person identification sensor;

200: a wind farm control system; 300: a matrix type wind generating system;

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

310-C0, 350-C0, 360-C0: a central range circle;

310-C1, 350-C1, 360-C1: a first range ring;

310-C2: a second range ring;

310-C3: a third range loop;

310a, 320a, 350a, 370 a: a motor;

310b, 320b, 350b, 370 b: a controller;

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

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

310e, 320e, 350e-1, 350e-2, 350e-3, 350e-4, 370e-1, 370e-2, 370e-3, 370 e-4: a damper;

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

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

320-1, 320-2, 320-3, 320-4, 320-5, 320-6, 320-7, 320-8, 320-9, 320-10, 320-11, 320-12, 320-N: an air exhaust device;

400: a filtration system;

500: a ventilation duct;

611. 611-1, 611-2, 611-3, 611-4, 612, 621, 622, 630, 640, 650: wind;

700: a character;

810-1, 810-2: a range of people;

901. 902, 903: a projection space.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

The invention applies the natural law of hydrodynamics, detects the position of a person, and selects the air supply device above and the air exhaust device below the position of the person to ensure that the air speed of the air supply device is different from that of the air exhaust device at other positions, so that the air pressure of the space where the person is positioned is different from that of the space where the person is positioned, and further positive pressure or negative pressure can be generated at the position of the person, and further the special technical effect of the air protection layer within the range of the position of the person is realized.

Referring to fig. 1, a cross-sectional view of a protection space according to an embodiment of the invention is shown. The invention utilizes a plurality of systems to produce positive pressure or negative pressure at the position of the character. Referring to fig. 2A, a system architecture diagram of a wind pressure generating system with protection function according to the present invention is shown. As shown in fig. 1, the present invention employs a matrix type wind generating system 300 disposed on the top and bottom surfaces (above the floor 2) of a protected space 1, so that the wind speed can be varied within the range of the position of a human 700.

In order to achieve the purpose of making the wind speed of the position of the character 700 different from that of other positions, the invention adopts two systems: the character recognition system 100 and the matrix-type wind generating system 300 can achieve positive pressure at the location of the character 700 (e.g., a medical staff) and negative pressure at the location of the patient 3 by a series of technical means, thereby achieving a special technical effect of the air protection layer. As shown in the drawing, when the matrix-type wind power generation system 300 is controlled such that the wind speed of the air blowing device located above the position of the human figure 700 and the wind discharging device located below the position of the human figure is "lower" than that of the other air blowing devices and wind discharging devices located nearby, a hydrodynamic pressure difference is generated, and the space where the human figure 700 is located is in a positive pressure state, as shown in fig. 1. On the contrary, when the matrix-type wind power generation system 300 is controlled such that the wind speed of the air blowing device located above the position of the human figure 700 and the wind speed of the air discharging device located below the position of the human figure 700 are "greater than" the wind speeds of the other air blowing devices and the wind speed of the other air discharging devices located beside the position of the human figure 700, a hydrodynamic pressure difference is generated, and the space where the human figure 700 is located is in a negative pressure state. The person recognition system 100 that accurately confirms the position of the person 700 is very important.

Many techniques are currently available for the person recognition system 100, such as an image recognition system, an ultrasonic image recognition system, a radar image recognition system, an infrared thermal image recognition system, a pressure pad system, etc., which are effective in recognizing the presence and location of the moving person 700. The position of the person recognition system 100 can be set according to the size of the protected space 1 and the specification 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 … …, and a person recognition sensor 12N. In the present embodiment, the human recognition sensor is disposed on the top surface of the protection space, and has scanning spaces that are staggered with each other, so that the position of the human 700 and the moving state thereof can be accurately sensed.

Next, referring back to fig. 2A and fig. 2C, the wind pressure generating system with protection function includes several main systems: a human recognition system 100, a wind farm control system 200, a matrix-type wind generating system 300, and a filtering system 400. The character recognition system 100 is used for recognizing at least one character and generating at least one character range coordinate of the at least one character located in the protected space 1, such as the character 700 in fig. 1. The matrix wind generating system 300 includes an air supply matrix and an air discharge matrix, wherein the air supply matrix is disposed on the top surface of the protection space 1 and the air discharge matrix is disposed on the bottom surface of the protection space 1. The air supply matrix and the air exhaust matrix are respectively provided with a plurality of air supply devices and a plurality of air exhaust devices, each air supply device and each air exhaust device are arranged in a mutually facing way (a one-to-one mode, a many-to-one mode or a one-to-many mode can be adopted), and each air supply device coordinate and an air exhaust device coordinate are respectively provided. And each air supply device and each air exhaust device receive a wind field control instruction to generate corresponding air supply speed and air exhaust speed. The filtering system 400 is connected to the air supply matrix and the air exhaust matrix by a ventilation duct 500, so that the air flowing through the air supply matrix and the air exhaust matrix can be filtered and disinfected. The wind field control system 200 (for example, using PLC/PLC, server for industrial computer, etc.) is connected to the character recognition system 100 and the matrix type wind power generation system 300, receives at least one character range coordinate transmitted from the character recognition system 100, calculates a wind field control range parameter according to the at least one character range coordinate, and maps to the blowing matrix and the exhausting matrix in the matrix type wind power generation system 300 according to the wind field control range parameters, so as to select each air supply device and each air exhaust device of at least one first range ring and output the wind field control instruction, so that the air supply speed of each air supply device of the first range ring is different from the air supply speed of each air supply device of the non-first range ring, and the air exhaust speed of each air exhaust device of the first range ring is different from the air exhaust speed of each air exhaust device of the second range ring.

As shown in fig. 2C, in the protected space 1, the air blowing device 310-1 and the air blowing device 310-2 … … disposed on the top surface, and the air discharging device 320-1 and the air discharging device 320-2 … … disposed on the bottom surface are disposed in a one-to-one vertical correspondence, and are connected to the ventilation duct 500, respectively. The direction of the overall air flow (wind direction) is: the air 611 and the air 612 … … generated by the air supply device 310-1 and the air supply device 310-N of the air supply device 310-2 … … are blown downwards, and then the air 621 and the air 622 … … exhausted by the air exhaust device 320-1 and the air exhaust device 320-2 … … and the air 630 in front of the filter system 400 are changed into clean air 640 after passing through the filter system 400 and then are turned to the air 650 at the air inlet of the air supply device 310-1 … …. The cycle is not completed. The main power of the air circulation is the air supply device 310-1, the air supply device 310-2 … …, the air supply device 310-N, the air exhaust device 320-1, the air exhaust device 320-2 … … and the air exhaust device 320-N.

Referring to fig. 3A and 3B, a functional block diagram of the blowing device 310 and the exhausting device 320 of the present invention is shown. The air blowing device 310 includes: the air inlet 310c is connected with the ventilation pipeline 500; a fan 310d disposed to face the intake vent 310 c; the motor 310a drives the fan 310d to rotate, so that the fan 310d brings the air (wind 650) from the wind inlet 310c into: the air door 310e is arranged at the air outlet of the fan 310d and used for controlling the air outlet quantity of the fan 310 d; the screen 310f is arranged at the air outlet of the air door 310e and used for homogenizing the air outlet quantity of the air door 310 e; an air supply outlet 310g disposed at an air outlet of the screen 310f and facing the protection space 1; the controller 310b is connected to the motor 310a and the damper 310e, and adjusts the speed of the motor 310a and the size of the damper 310e after receiving the wind field control command (from the wind field control system 200) to adjust the wind speed. The air exhaust device 320 includes: an air inlet 320c facing the protection space 1; a fan disposed to face the air inlet 320 c; the air door 320e is arranged at the air outlet of the fan 320d and used for controlling the air exhaust amount of the fan 320 d; the motor 320a drives the fan 320d to rotate, so that the fan 320d brings the air (wind 611) from the air inlet 320c into: an air outlet 320f disposed at an air outlet of the air door 320e, facing the ventilation duct 500, for exhausting air 621; the controller 320b is connected to the motor 320a and the damper 320e, and adjusts the rotation speed of the motor 310a and the size of the damper 320e after receiving the wind field control command (from the wind field control system 200), thereby adjusting the wind speed of the discharged wind.

As can be seen from the above description of fig. 2A to 2C, the wind farm control system 200 of the present invention dominates the overall system flow. The wind farm control system 200 calculates at least one human range coordinate transmitted from the received human recognition system 100 to generate a corresponding first range ring. The air supply device and the air exhaust device defined by the first range are the objects of the wind farm control system 200, which mainly adjust the wind speed. Generally, the wind farm control system 200 can issue the wind farm control command in an unmanned state by using a constant wind speed manner, that is, the wind speed generated by each of the wind blowing devices is the same, and the wind speed generated by each of the air discharging devices is the same. Furthermore, the air exhaust speed is larger than the air supply speed, which is the basic condition for reaching the negative pressure ward.

Obviously, the present invention can generate the corresponding first range ring through the character range coordinates transmitted from the character recognition system 100 because the character recognition system 100 of the present invention and the matrix-type wind power generation system 300 share the protection space, i.e. both have the same projection plane. The wind farm control system 200 clearly grasps the coordinates of the character range of the character 700 generated by the character recognition system 100 and the coordinates of each of the blowing devices and the exhaust devices of the matrix type wind power generation system 300, so that they can be mapped to each other.

However, the coordinates of the blowing device and the exhausting device represented by the first range ring are not continuous, compared to the coordinate of the character range for the character 700, which may be a point or a linear range. Therefore, in practice, the coordinates of the character range of the character 700 and the coordinates of the blowing device and the exhausting device represented by the first range ring cannot be directly corresponded, and therefore, the coordinates must be redefined.

Next, please refer to fig. 4A to 4E, which are an embodiment of setting the first range ring by using the character range coordinates of the character 700 according to the present invention. Fig. 4A shows the projected space 901 of the protected space 1, where the person 700 is found to move from the point P1 to the point P2. At this time, for the person identification system 100 (e.g., the image identification system, the infrared image identification system, or the ultrasonic image identification system), the captured image data is as shown in fig. 4B, the projected space 902 identified by the person identification system 100 in the protected space 1, the person 700 is shown as the person range 810-1 and the person range 810-2. The character recognition system 100 transmits the coordinates of the character ranges representing the character ranges 810-1 and 810-2 to the wind park control system 200. The wind farm control system 200 can calculate the center coordinates thereof according to the coordinates of the character range 810-1 and the character range 810-2. Next, referring to fig. 4C, after the projected space 903 of the top view blower in the protected space 1 is converted into the projected space 903 of the blower by the wind field control system 200, the coordinates of the human range 810-1 and the human range 810-2 are superimposed on the projected space 903 of the blower, wherein the coordinates of the centers of the point P1 and the point P2 are (X1, Y1), (X2, Y1), respectively. Next, the wind farm control system 200 defines a first range circle according to the coordinates of the character range 810-1 and the character range 810-2.

There are many embodiments of the invention for defining the first exemplary area, such as a center coordinate definition method, a character area coordinate definition method. Hereinafter, the center coordinate defining method will be described with reference to fig. 4D to 4E. In fig. 4D, the wind farm control system 200 designates the central blower from the calculated coordinates (X1, Y1) of the center point P1, and also designates the central exhaust device, that is, the central blower and the central exhaust device are coordinates covering the point P1. However, this embodiment happens to be: one blower and one exhaust device covering the center coordinates (X1, Y1) of the point P1, however, other situations may be the center coordinate of the point P1 is just located between two blowers or between four blowers. Therefore, the center coordinate of the point P1 may substantially correspond to at least one of the central air blowing device and the central air exhausting device. The number of the central air supply devices and the central air exhaust devices is influenced by the structures of the air supply matrix and the air exhaust matrix. As shown in fig. 4C, which is a matrix of a square compact structure, the number of the associated maximum central blowing devices of the point P1 is 4; FIG. 4K shows a matrix with the blowing devices 340 staggered in a square pattern, where the maximum number of associated central blowing devices at point P1 is 3; fig. 4L shows a hexagonal honeycomb matrix of blowing devices 330, and the maximum number of associated central blowing devices at point P1 is 3.

Returning to FIG. 4D, center coordinates (X1, Y1) correspond to one blower, and wind farm control system 200 defines it as center blower 310-C0, and the nine blowers surrounding center blower 310-C0 are defined as first range blower 310-C1, the 14 blowers surrounding first range blower 310-C1 are defined as second range blower 310-C2, and so on. For the air exhausting device, the procedure is the same, and the description is not repeated.

In FIG. 4E, character 700 has moved to point P2 with its center coordinates (X2, Y1) again corresponding to a single blower, and wind farm control system 200 defines it as center blower 310-C0, with the nine blowers outside of center blower 310-C0 being defined as first range blower 310-C1, the 14 blowers outside of first range blower 310-C1 being defined as second range blower 310-C2, and so on. For the air exhausting device, the procedure is the same, and the description is not repeated.

After the central air supply devices (more than 1) are defined as the central range ring and the first range ring, the air speeds of the corresponding central air supply devices and the corresponding first range ring air supply devices are controlled to be different from other air speeds, for example, the air speeds of the central air supply devices and the first range ring air supply devices are smaller than the air speeds of other air supply devices, and positive pressure of the space of the first range ring can be caused. Otherwise, negative pressure may be created. Or the wind speed of the central air supply device is the minimum, the wind speed of the air supply device in the first range is the second highest, and the wind speed of the air supply devices in other parts is the maximum; or vice versa. These controls are performed by the control program of the wind farm control system 200. This is the control method of the embodiment of fig. 4D and 4E.

In addition to controlling the air speeds of the central blower and the blowers in the center area circle (the embodiments of fig. 4D and 4E), another method is to control the air speeds of the other blowers of the non-central blower and the blowers in the center area circle to be smaller or larger than the air speeds of the central blower and the blowers in the center area circle. Referring to fig. 5A and 5B, this embodiment defines the center area as all of the blowing devices 310-C0 included in the coordinates of the character area 810-1, which is 9 blowing devices in the illustration. The air supply devices 310-C1 of the first range ring are surrounded by the air supply devices, and the number of the air supply devices is 24; air blowing devices 310-C2 surrounding a second range ring outside the first range ring; blower 310-C3 surrounding a third range ring outside the second range ring, and so on. And controlling the air supply devices of the first range ring, the second range ring and the third range ring to have different air speeds from the air supply device of the central range ring. Similarly, when the wind speed in the central range ring is minimum, the space range can generate positive pressure, and conversely, negative pressure is generated.

In any way, the invention can define the first range ring, the central range ring and the like by the character range coordinates, and then achieves the special technical effect of the positive pressure or the negative pressure of the local space by the difference of the wind speed in the central range ring or the first range ring and other wind speeds. In the concept of covering the coordinates of the character area with the center area circle or the first area circle, the present invention is based on the corresponding blowing device covering the coordinates of the character area to generate positive or negative pressure in the space where the character is located (here, the so-called positive or negative pressure is the pressure difference between the adjacent portions of the center area circle or the portions of the first area circle).

In the embodiment of fig. 4D and 4E, the size of the first range ring covers the character range 810-1 and the character range 810-2. This is an embodiment where the size of the blowing devices is 20 centimeters (cm) × 20 centimeters (cm), the size of the three blowing devices is 60 centimeters, and the shoulder width of a typical character is between about 40-50 centimeters. If the size of the blower is larger or smaller, the number of the projection planes of the blower corresponding to the human ranges 810-1 and 810-2 may be different. FIG. 4F shows the size of the blower 310 is 20 cm × 20 cm, and the character 700 can be covered by 6 to 12 blowers; FIG. 4G shows the size of the blower 311 is 30 cm × 30 cm, and the character 700 can be covered by 4-9 blowers; FIG. 4H, the size of the blower 312 is 40 cm × 40 cm, and the character 700 can be covered by 2-6 blowers; in fig. 4I, the size of the blowing device 313 is 60 cm x60 cm, and the character 700 can be covered by 1-4 blowing devices.

The first range is defined by the center coordinates, which is applicable when the blower is small in size. However, the larger the size of the blowing device, the larger the first range ring may be, as in the embodiment of fig. 4H, the first range ring may cover 12 blowing devices, and the range thereof covers 240 cm × 240 cm, which is not suitable for practical requirements. Thus, in the alternative embodiment of the present invention, shown in FIG. 4J, a single blower 370 of 40 cm x40 cm is provided with 4 outlets, which may be substantially 20 cm x20 cm.

The above embodiments of the air blowing device are the technology of the full-coverage type air blowing device, that is, the air blowing port (or air blowing port) of the air blowing device is a full-area air blowing mode. In other words, the air supply device supplies air once in an area of square M cm xM cm, and the air speed sent by the area is the same.

Referring to fig. 6A and 6B, the air blowing device 370 includes: the air inlet 370c is connected with the ventilation duct 500; a fan 370d disposed to face the air inlet 370 c; the motor 370a drives the fan 370d to rotate, so that the fan 370d brings the air (wind 650) from the wind inlet 370c into: the air door 370e-1, the air door 370e-2, the air door 370e-3 and the air door 370e-4 are arranged at the air outlet of the fan 370d and used for controlling the air outlet quantity of the fan 370 d; the screen mesh 370f-1, the screen mesh 370f-2, the screen mesh 370f-3 and the screen mesh 370f-4 are respectively arranged at the air outlet positions of the air door 370e-1, the air door 370e-2, the air door 370e-3 and the air door 370e-4 and used for homogenizing the air outlet amount of the air door 370e-1, the air door 370e-2, the air door 370e-3 and the air door 370 e-4; an air supply outlet 370g-1, an air supply outlet 370g-2, an air supply outlet 370g-3 and an air supply outlet 370g-4 which are respectively arranged at the air outlet positions of the screen 370f-1, the screen 370f-2, the screen 370f-3 and the screen 370f-4 and face the protection space 1; the controller 370b is connected to the motor 370a and the damper 3703, and adjusts the rotation speed of the motor 370a and the sizes of the damper 370e-1, the damper 370e-2, the damper 370e-3, and the damper 370e-4 to adjust the blowing air speed after receiving the wind field control command (from the wind field control system 200). The structure of the four-in-one full-covering type air exhaust device can be the same as that of the four-in-one full-covering type air supply device, namely, a plurality of air inlets and a plurality of air doors are adopted. Wherein, the air doors 370e-1, 370e-2, 370e-3 and 370e-4 are of a fully open/fully closed type or an opening ratio adjustable type. After receiving the wind field control instruction transmitted by the wind field control system 200, the microcontroller 370b controls the motor 370a, the air door 370e-1, the air door 370e-2, the air door 370e-3 and the air door 370e-4 to enable the air supply outlet 370g-1, the air supply outlet 370g-2, the air supply outlet 370g-3 and the air 611-1, the air 611-1 and the air 611-1 of the air supply outlet 370g-4 to be different.

Next, another embodiment of the air blowing device of the present invention, a peripheral air blowing device and a peripheral air discharging device, will be described. Referring to fig. 7A to 7E, the shape, functional block diagram and method embodiment of the first range of the square-shaped peripheral type blowing device 350 of the present invention are shown. The peripheral air supply device 350 comprises four air supply outlets 350g-1, 350g-2, 350g-3 and 350 g-1. The air outlet 350g-1, the air outlet 350g-2, the air outlet 350g-3, and the air outlet 350g-1 are respectively provided at the periphery of the surface of the peripheral air supply device 350 facing the protection space 1, as shown in fig. 7A.

Referring to fig. 7B, the peripheral air-blowing device 350 includes: the air inlet 350c is connected with the ventilation pipeline 500; a fan 350d disposed to face the intake vent 350 c; the motor 350a drives the fan 350d to rotate, so that the fan 350d brings the air (wind 650) from the wind inlet 350c into: the four air doors 350e-1, 350e-2, 350e-3 and 350e-4 are arranged at the air outlet of the fan 350d and used for controlling the air outlet quantity of the fan 350 d; the four screens 350f-1, 350f-2, 350f-3 and 350f-4 are respectively arranged at the air outlet positions of the air doors 350e-1, 350e-2, 350e-3 and 350e-4 and used for homogenizing the air outlet quantities of the air doors 350e-1, 350e-2, 350e-3 and 350 e-4; the four air supply outlets 350g-1, 350g-2, 350g-3 and 350g-4 are respectively arranged at the air outlet positions of the screen 350f-1, 350f-2, 350f-3 and 350f-4 and face the protection space 1; the controller 350b, which is connected to the motor 350a and the damper 3503, receives the wind field control command (from the wind field control system 200), and then adjusts the rotation speed of the motor 350a and the sizes of the damper 350e-1, the damper 350e-2, the damper 350e-3, and the damper 350e-4, so as to adjust the wind 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, namely, a plurality of air inlets and a plurality of air doors are adopted. Wherein, the air door 350e-1, the air door 350e-2, the air door 350e-3 and the air door 350e-4 are of a fully open/fully closed type or an opening ratio adjustable type. After the microcontroller 350b receives the wind field control instruction transmitted by the wind field control system 200, the motor 370a, the air door 370e-1, the air door 350e-2, the air door 350e-3 and the air door 350e-4 are controlled to enable the air supply outlet 350g-1, the air supply outlet 350g-2, the air supply outlet 350g-3 and the air 611-1, the air 611-1 and the air 611-1 of the air supply outlet 350g-4 to be different.

Referring to FIG. 7D and FIG. 7E, when the center point A of the character range coordinates moves to the center point B, the wind farm control system 200 correspondingly moves the center range ring 350-C0 and the first range ring 350-C1, and the center range ring moves from the blowing devices 350N-M to the blowing devices 350- (N +1) - (M + 1).

Referring to fig. 8A to 8D, the present invention relates to a method for forming a hexagonal peripheral blowing device 360 and defining a first range. As compared with the embodiment shown in fig. 7A to 7E, the difference between them is the number of air blowing ports, and the six air blowing ports of the hexagonal peripheral type air blowing device 360 of the 8A are: an air supply opening 360g-1, an air supply opening 360g-2, an air supply opening 360g-3, an air supply opening 360g-4, an air supply opening 360g-5 and an air supply opening 360g-6, which are arranged in a honeycomb shape in fig. 8B. In FIGS. 8C and 8D, when center point A of the character range coordinates moves to center point B, wind farm control system 200 moves center range circle 360-C0 and first range circle 360-C1 accordingly, and center range circle moves from blowing devices 360N-M to blowing devices 350- (N-1) - (M + 1).

As can be seen from the above description, the wind farm control system 200 controls the matrix wind power generation system according to the present invention, and the positive or negative pressure of the space where the character 700 is located is realized by defining the first range ring or the central range ring according to the character range coordinates of the character recognition system 100. Several embodiments of the control method will be described below to describe the positive and negative pressure generation and control method of the present invention.

Referring to fig. 9A to 9C, in a method for generating a protective air pressure difference in a full-coverage manner according to a first embodiment of the present invention, a main process includes the following steps:

step S101: and performing character recognition by using the character recognition system, and generating a character range coordinate when a character is detected, wherein the character range coordinate is defined according to the projection coordinate of the protection space.

Step S102: defining the respective projection coordinates of each air supply device and each air exhaust device in the protection space.

Step S103: according to the character range coordinate, each air supply device and each air exhaust device corresponding to the character range coordinate are defined to be a first range ring, so that the air speed generated by each air supply device and each air exhaust device of the first range ring is different from the air speed generated by each air supply device and each air exhaust device of the non-first range ring, and a first differential pressure range ring is formed.

The flow of fig. 9A has two main technical features: a first range ring is defined by the character range coordinates, and the wind speed within the first range ring is controlled to be different from the wind speed within the non-first range ring. Thus, the air pressure difference can be generated between the first range ring and the non-first range ring. As to how the first range circle is defined by the character range coordinates, the present invention provides some specific embodiments:

FIG. 9B is a flow chart providing one embodiment of defining a first range ring: and taking the air supply device passing through the character range coordinate as a first range ring. That is, the coordinate of the figure range is marked as the coordinate of the boundary of the figure range, and all the air blowing devices or air exhausting devices covering the boundary are the first range ring. The embodiment of fig. 9B includes the following steps:

step S111: each of the air blowing devices and each of the air discharging devices passing through the character range coordinates are defined as the first range ring.

Step S112: and inspecting whether each undefined air supply device and each undefined air exhaust device exist in the space surrounded by the first range ring, and if so, defining the space as a central range ring. For the embodiment of FIG. 4F, the character 700 may be covered by 6-12 air blowing devices, and the first range is the outermost circle. That is, the number of the blowing devices of the first range ring may be 6, 8 or 10, and the number of the center range ring may be 0, 1 or 2. Therefore, when the first range ring is defined in the manner of the present embodiment, there are some cases where the center range ring is absent.

Step S113: the wind speeds generated by the central range ring, the air supply devices and the air exhaust devices of the first range ring are different from the wind speeds generated by the non-central range ring, the air supply devices and the air exhaust devices of the first range ring, and a first differential pressure range ring is formed.

The first pressure difference range loop can be positive pressure or negative pressure, depending on the application. Taking the negative pressure ward as an example, if the medical care personnel need to be protected, the positive pressure environment is provided for the medical care personnel, and the negative pressure environment is provided for the patient. In contrast, the second differential pressure range loop is opposite to the differential pressure of the first differential pressure range loop.

In the case of no central range, the present invention provides several embodiments for controlling the blower within the first range to generate positive pressure, i.e., adjusting the velocity of the supply air and the velocity of the exhaust air. Adjusting the positive pressure within the first range circle: I. adjusting the air supply speed and the air exhaust speed of each air supply device and each air exhaust device in the first range to be smaller than initial set values, wherein the air speeds of other air supply devices and other air exhaust devices are the initial set values; and II, adjusting the air supply speed and the air exhaust speed of each air supply device and each air exhaust device which are not in the first range to be larger than an initial set value. Adjusting the negative pressure in the first range ring: I. adjusting the air supply speed and the air exhaust speed of each air supply device and each air exhaust device in the first range ring to be larger than an initial set value; and II, adjusting the air supply speed and the air exhaust speed of each air supply device and each air exhaust device which are not in the first range ring to be smaller than initial set values, wherein the first range ring is the initial set values. In the two methods, one is to adjust the wind speed in the first range ring, and the other is to adjust the wind speed in the non-first range ring, and the two methods have different adjustment objects but have the same technical effect.

When the central range enclosure is available, the present invention provides several embodiments for controlling the blower within the first range enclosure to generate positive pressure, i.e., adjusting the velocity of the supply air and the velocity of the exhaust air. Adjusting the positive pressure within the first range circle: I. by adjusting the air supply speed and the air exhaust speed of the central range ring and each air supply device and each air exhaust device in the first range ring to be less than the initial set values, the air speeds of other air supply devices and air exhaust devices are the initial set values, and the air speed of the central range ring is less than that of the first range ring, namely the air speed of the central range ring is the minimum. Adjusting the negative pressure in the first range ring: I. the air speed of the central range ring is larger than that of the first range ring, namely the air speed of the central range ring is the maximum. In the two methods, one method is to adjust the wind speed in the first range ring, and the other method is to adjust the wind speed in the non-first range ring, and the objects of the two adjustments are different, but the obtained technical effects are the same.

FIG. 9C, flow, provides another embodiment for defining a first range ring: a first range circle is defined by the center coordinates. That is, the range of the first range ring is defined by the center coordinates calculated from the coordinates of the range of the person. The embodiment of fig. 9C includes the following steps:

step S121: and calculating a center coordinate of the character according to the character range coordinate.

Step S122: and selecting at least one air supply device and at least one air exhaust device which are closest to the central coordinate as a central range ring according to the central coordinate. As described above, the number of air blowing devices in the center range ring may be 1, 2, or 4, as illustrated in fig. 4F. For the embodiments of fig. 4K and 4L, there may be 1, 2 or 3.

Step S123: defining each air supply device and each air exhaust device covering the central range ring as a first range ring, and inspecting whether the range covered by the first range ring completely covers the character range coordinate.

Step S124: if the range covered by the first range ring does not completely cover the character range coordinate, at least one air supply device and at least one air exhaust device which can cover the character range coordinate are additionally selected to the first range ring.

Step S125: the wind speeds generated by the central range ring, the air supply devices of the first range ring and the air exhaust devices are different from the wind speeds generated by the central range ring, the air supply devices of the first range ring and the air exhaust devices, so that a first differential pressure range ring is formed.

Comparing the embodiments of fig. 9B and 9C, it can be seen that the first range circles defined by the two embodiments may be the same or different. In the embodiment of FIG. 9B, there may be no central range ring, whereas in the embodiment of FIG. 9C, there must be a central range ring. Therefore, the first range rings may be defined in different ways, and the first range rings of the same range may be derived and may be different. Once the central range ring and the first range ring are defined, the method for generating the positive pressure and the negative pressure is the same as the aforementioned method, which is not repeated herein.

The above wind field control method is a control method using a full-coverage type air blowing device and a full-coverage type air exhausting device as embodiments. Hereinafter, the peripheral air blowing device and the control method of the air discharging device will be described. Referring to fig. 10A to 10C, the main process of the method for peripherally generating a protective air pressure difference includes the following steps:

step S201: the character recognition system is used for recognizing characters, when a character is detected, a character range coordinate is generated, and the character range coordinate is defined according to the projection coordinate of the protection space.

Step S202: defining respective projection coordinates of each air supply outlet of each air supply device and each air outlet of each air exhaust device in the protection space.

Step S203: calculating a center coordinate among the character range coordinates. Unlike the full-coverage type air supply device, the air supply outlet of the peripheral type air supply device is positioned at the periphery, and the air supply outlet of the full-coverage type air supply device is a whole surface. Therefore, the centers of the air outlets of the peripheral air supply devices are all positioned at the centers of all the sides, and the center of the air outlet of the full-covering air supply device is positioned at the center of the whole surface. Therefore, when the character range coordinates pass through one peripheral air blowing device, it is possible to pass through only one, two or three air blowing ports. And the position where it passes is inside or outside, which is difficult to determine. Therefore, the relationship between the air outlets of the peripheral air blowing device and the character range coordinates can be accurately grasped by using the center coordinates of the character range coordinates as the reference point.

Step S204: according to the character range coordinate, each air supply outlet of each air supply device and each air outlet of each air exhaust device corresponding to the character range coordinate are defined as a first range ring, and the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device in the first range ring is different from the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device in the non-first range ring, so that a first differential pressure range ring is formed.

One embodiment of the first range ring is defined, as shown in FIG. 10B.

Step S211: and selecting the air supply outlets of the air supply devices and the air exhaust outlets of the air exhaust devices corresponding to the distance between the figure range coordinate and the center coordinate to be larger than or closest to the figure range coordinate as a first range ring according to the figure range coordinate, wherein the air supply outlets of the first range ring can surround the figure range coordinate. Different from the full-covering type air supply device, the full-covering type air supply device can cover the coordinate range of the figure to form a closed structure; since the peripheral type air blowing devices have air blowing ports at the periphery, the air blowing ports through which the coordinate range of the character passes may be open and not connected to each other. Thus, one embodiment of the invention is to form a closed structure with the supply ports connected to each other.

Step S212: and the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device in the first range ring is smaller than the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device which are not in the first range ring, so that a positive pressure difference range ring is formed.

Step S213: and enabling the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device in the first range ring to be larger than the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device which are not in the first range ring, and further forming a negative pressure difference range ring.

Another embodiment of the first range ring is defined as shown in FIG. 10C.

Step S221: and selecting each air supply outlet of each air supply device and each air outlet of each air exhaust device corresponding to the character range coordinate as a first range ring according to the character range coordinate.

Step S222: and the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device in the first range ring is smaller than the wind speed generated by each air supply outlet of each air supply device and each air outlet of each air exhaust device which are not in the first range ring, so that a positive pressure difference range ring is formed.

Step S223: and enabling the wind speed generated by each air supply opening of each air supply device and each air outlet of each air exhaust device in the first range ring to be larger than the wind speed generated by each air supply opening of each air supply device and each air outlet of each air exhaust device which are not in the first range ring, thereby forming a negative pressure difference range ring.

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

Step S231: and defining the air supply outlets of the air supply devices and the air exhaust outlets of the air exhaust devices surrounding the central coordinates as a central range ring. As in the previous embodiments, the center range ring is a surrounding concept, similar to steps S211 to S213. Since the center coordinates are points, they may be located at the air blowing ports of the peripheral type air blowing device or may be located outside the air blowing ports. Taking the embodiment of fig. 4F as an example, if the air blowing ports are located right at the air blowing ports, the number of the air blowing ports of the peripheral air blowing device surrounding the center coordinate may be five, that is, one air blowing port adjacent to the other air blowing port and four air blowing ports including the peripheral air blowing device itself; or may be one, i.e. the one supply air opening. If the center coordinate is located right between two air supply ports, the number of air supply ports of the peripheral air supply device surrounding the center coordinate is eight (closed surrounding), and two air supply ports (open surrounding) may be used. If the center coordinate is located exactly between the four air blowing ports, the number of air blowing ports of the peripheral type air blowing device surrounding the center coordinate is four. And so on. The concept of enclosure here can be interpreted not only as the concept of closed enclosure in steps S111 to S113, but also as the concept of open enclosure.

Step S232: and the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices in the first range ring are smaller than the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices which are not in the first range ring, and the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices in the central range ring are smaller than the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices in the first range ring, so that a positive pressure difference range ring is formed.

Step S233: and the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices in the first range ring are larger than the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices which are not in the first range ring, and the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices in the central range ring are larger than the wind speeds generated by the air supply ports of all the air supply devices and the air exhaust ports of all the air exhaust devices in the first range ring, so that a negative pressure difference range ring is formed.

In the embodiments of steps S231 to S233, the purpose is to create wind speeds of different layers, such as the central range ring and the first range ring, so as to achieve a state that the wind speed increases or decreases in the first range ring or from the central range ring to the first range ring to other parts.

Similarly, the air blowing ports outside the first range of circle may be controlled to have a speed different from the air blowing port speed within the first range of circle in steps S231 to S233. The operation is as described above, and will not be described herein.

However, when a person is detected, it is determined whether the person is a health care provider or a patient, and it is then known how to protect the person from pressure differentials. Hereinafter, several examples will be described.

In one embodiment of the invention, the concept of only one specific object having a label, i.e. a single label, e.g. a medical staff, or a patient, i.e. not black or white, is used. The specific method comprises the following steps: forming the first pressure differential range circle when the identified person has a tag; when the identified person has no label, selecting each air supply device and each air exhaust device corresponding to the person range coordinate as a first range ring according to the person range coordinate, so that the air speeds generated by each air supply device and each air exhaust device of the first range ring are different from the air speeds generated by each air supply device and each air exhaust device of the non-first range ring, and further forming a second differential pressure range ring, wherein the differential pressure of the second differential pressure range ring is opposite to that of the first differential pressure range ring.

Next, in another embodiment of the present invention, a double-labeling approach is used. That is, when the identified person has a first tag, the first differential pressure range circle is formed; when the identified person has a second tag, a second pressure differential range loop is formed, the second pressure differential range loop having a pressure differential opposite that of the first pressure differential range loop.

Wherein the Tag is a physical Tag of a radio frequency identification Tag (RFID) or a Soft Tag (Soft Tag) determined by a specific person generated by the person identification system. The soft label is generated by the person identification device according to the system judgment, for example, judging the wearing material (protective clothing) of the medical staff and the wearing material (cotton clothing) of the patient, and further judging the identity of the person identification device.

Next, please refer to fig. 11, which is a configuration example of an air discharge matrix disposed on the floor 2 according to another embodiment of the present invention. As can be seen from FIG. 11, the exhaust devices 320-1, 320-2, 320-3, 320-4, 320-5, 320-6, 320-7, 320-8, 320-9, 320-10, 320-11, and 320-12 are disposed at the periphery of the floor 2 (bottom corner of the surrounding wall). In some locations, the ventilation matrix as in the previous embodiment is not suitable for arranging the ventilation devices in most of the space of the floor 2, but needs to be arranged around the floor. Further, the exhaust devices 320-1, 320-2, 320-3 … and the like may be the above-described full-coverage type exhaust devices or peripheral type exhaust devices, or a mixture of both. Similarly, the blowing devices in the blowing matrix can be mixed with the full-coverage blowing device or the peripheral blowing device.

In addition, for another embodiment of the present invention, the air supply matrix may be disposed on the bottom surface of the protection space, and the air exhaust matrix may be disposed on the top surface of the protection space. The structure of fig. 11 can also be configured in reverse as the present embodiment.

From the above embodiments, the present invention creates a protective wind pressure space by implementing the person identification for the person 700, the range definition (the first range ring) of the person, and the generation of different wind speeds, so as to generate different wind pressures around the person, thereby implementing active protection for medical staff or other persons to be protected. This active guard acts as an air shield and follows the side, following the position of the medical staff. Therefore, by implementing the technology of the invention, medical care personnel can add a layer of protective net to the medical care personnel under the condition that the modern negative pressure ward is still defective, thereby reducing the possibility of infection of the medical care personnel.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.

Claims

1. The utility model provides a wind pressure generation system of utensil safeguard function, applies to a guard space, its characterized in that contains:

the system comprises a human body identification system, a human body identification system and a human body identification system, wherein the human body identification system is used for identifying at least one human body and generating at least one human body range coordinate of the at least one human body in the protection space;

a matrix wind generating system, comprising an air supply matrix and an air discharge matrix, wherein the air supply matrix is configured on the top surface of the protection space and the air discharge matrix is configured on the bottom surface of the protection space, the air supply matrix and the air discharge matrix are respectively provided with a plurality of air supply devices and a plurality of air discharge devices, each air supply device and each air discharge device are arranged in a way of facing each other and are respectively provided with an air supply device coordinate and an air discharge device coordinate, and each air supply device and each air discharge device receive an air field control command to generate corresponding air supply speed and air discharge speed;

the filtering system is connected with the air supply matrix and the air exhaust matrix through a ventilation pipeline, so that air flowing through the air supply matrix and the air exhaust matrix can be filtered and disinfected; and

and the wind field control system is connected with the character recognition system, receives the at least one character range coordinate, calculates a wind field control range parameter according to the at least one character range coordinate, maps the wind field control range parameter to the air supply matrix and the air exhaust matrix according to the wind field control range parameter so as to select each air supply device and each air exhaust device of at least one first range ring, and outputs the wind field control instruction, so that the air supply speed of each air supply device of the first range ring is different from the air supply speed of each air supply device of the non-first range ring, and the air exhaust speed of each air exhaust device of the first range ring is different from the air exhaust speed of each air exhaust device of the non-first range ring so as to form a first pressure difference range ring, so that the protection wind pressure is formed on at least one character.

2. The wind pressure generating system with protection function according to claim 1, further comprising:

when the identified person has a label, forming the first pressure difference range ring according to the person range coordinate; when the identified person has no label, selecting each air supply device and each air exhaust device corresponding to the person range coordinate as a first range ring according to the person range coordinate, so that the air speeds generated by each air supply device and each air exhaust device of the first range ring are different from the air speeds generated by each air supply device and each air exhaust device of the non-first range ring, and further forming a second differential pressure range ring, wherein the differential pressure of the second differential pressure range ring is opposite to that of the first differential pressure range ring.

3. The protective wind pressure generating system according to claim 1, wherein when the identified person has a first tag, the first pressure difference range ring is formed according to the person range coordinates; when the identified person has a second label, forming a second pressure difference range ring according to the person range coordinate, wherein the pressure difference of the second pressure difference range ring is opposite to that of the first pressure difference range ring.

4. The system of claim 1, wherein the wind farm control system generates a wind speed for each of the blowing devices and the discharging devices within the first range ring that is less than a wind speed for each of the blowing devices and the discharging devices not within the first range ring by the matrix wind generating system.

5. The system of claim 1, wherein the wind park control system generates a wind speed for each of the air blowing devices and each of the air exhausting devices within the first range ring greater than a wind speed for each of the air blowing devices and each of the air exhausting devices not within the first range ring by the matrix-type wind generating system.

6. A method for generating a protective air pressure difference, applied to a protection space configured with a human identification system and a matrix type wind generating system, wherein the matrix type wind generating system has a wind supply matrix and a wind discharge matrix respectively configured on the top surface and the bottom surface of the protection space, the wind supply matrix and the wind discharge matrix respectively have a plurality of wind supply devices and a plurality of wind discharge devices, each of the wind supply devices and each of the wind discharge devices face each other, comprising:

performing character recognition by using the character recognition system, and generating a character range coordinate when a character is detected, wherein the character range coordinate is defined according to the projection coordinate of the protection space;

defining individual projection coordinates of each air supply device and each air exhaust device in the protection space; and

according to the figure range coordinate, each air supply device and each air exhaust device corresponding to the figure range coordinate are defined to be a first range ring, so that the air speed generated by each air supply device and each air exhaust device of the first range ring is different from the air speed generated by each air supply device and each air exhaust device of the non-first range ring, and a first differential pressure range ring is formed.

7. The method of generating a protective differential air pressure of claim 6, further comprising:

when the identified person has a label, forming the first pressure difference range ring according to the person range coordinate; when the identified person has no label, according to the person range coordinate, selecting each air supply device and each air exhaust device corresponding to the person range coordinate as a first range ring, so that the air speeds generated by each air supply device and each air exhaust device of the first range ring are different from the air speeds generated by each air supply device and each air exhaust device of the first range ring, and further forming a second differential pressure range ring, wherein the differential pressure of the second differential pressure range ring is opposite to that of the first differential pressure range ring.

8. The method of generating a protective differential air pressure of claim 6, wherein when the identified person has a first tag, forming the first differential pressure range circle according to the person range coordinates; when the person identified has a second tag, a second pressure difference range loop is formed, the second pressure difference range loop having a pressure difference opposite to the pressure difference of the first pressure difference range loop.

9. The method of generating a protective air pressure difference according to claim 6, wherein the air blowing devices and the air discharging devices corresponding to the coordinates of the human figure range are defined as the first range ring by:

each of the air blowing devices and each of the air discharging devices passing through the character range coordinate are defined as the first range ring.

10. The method of generating a protective air pressure difference according to claim 6, wherein a supply air speed and an exhaust air speed of each of the supply air devices and each of the exhaust air devices in the first range are controlled to be smaller than those of each of the supply air devices and each of the exhaust air devices other than the first range.

11. The method of generating a protective air pressure difference according to claim 6, wherein a supply air speed and an exhaust air speed of each of the supply air devices and each of the exhaust air devices of the first range are controlled to be greater than those of each of the supply air devices and each of the exhaust air devices other than the first range.