An antenna radiation angle indication and setting device

Abstract

The utility model relates to antenna safety technical field discloses a kind of antenna radiation angle indication and setting device.The device is composed of LED lamp strip (1), several LED lamp beads (2) in lamp strip middle distance distribution, power module (3), lamp strip control panel (4) and adjusting knob (5).When using, install LED lamp strip outside antenna cover, through the bright-out of LED lamp strip inner lamp bead indicates the radiatable range of antenna, through the color indication of lamp bead the radiation intensity of different regions of antenna, to help staff to intuitively judge the microwave radiation intensity of the position where oneself is located, and then far away from radiation harm.The device uses the current pointing angle and microwave emission source switch state information transmitted by antenna equipment, controls the color change of LED lamp bead according to radiation intensity, and also can set a certain angle range of radiation forbidden zone, and reports antenna through protocol, controls microwave emission source to be closed in the area of antenna, finally realizes the safe application of antenna.

Description

Technical Field

[0001] This utility model belongs to the technical field of antenna safety auxiliary equipment, specifically an innovative design addressing the radiation safety issue during antenna operation. Background Technology

[0002] In the fields of radar and wireless communication, signals generally need to be radiated into space by means of microwaves through antennas. In high-power microwave applications, the main lobe energy radiated by directional antennas is very strong. If it is directly irradiated by the human body, it will cause certain health hazards. Long-term exposure may even cause permanent diseases.

[0003] Generally, to ensure no microwave radiation harm to personnel, antennas are installed in relatively high, unobstructed locations. However, in some special applications, such as when space is limited on ships or during temporary installations for testing, antennas cannot be installed far from personnel. Due to structural strength and wave transmission requirements, radomes are typically opaque, making it impossible for nearby personnel to visually determine whether the antenna's microwave emission source is operational or its current orientation. When approaching the equipment, their location may be within the main lobe of the antenna's microwave radiation, posing a potential radiation hazard.

[0004] There are also some special cases, such as when the antenna's specific angle range is a living area or a temporary gathering place for people. During normal use of the antenna, the antenna surface may point towards that area, causing certain radiation damage to people. Utility Model Content

[0005] This invention aims to provide an antenna radiation angle indication and setting device, enabling personnel to intuitively judge the microwave radiation intensity at different angles of the antenna even when they cannot observe the working status of the equipment inside the radome, thus helping them quickly determine whether their position is safe. It also allows for the arbitrary setting of any area around the antenna as a radiation exclusion zone, automatically shutting off the microwave emission source when the antenna surface points towards that area, ensuring that personnel within that area are protected from radiation hazards.

[0006] To achieve the above functions, the technical solution adopted by this utility model is as follows: The device mainly includes a light strip control board, an LED light strip, an adjustment knob, and a power module. The light strip control board is installed inside the antenna cover and is used to realize data transmission between the light strip control and the antenna equipment; the LED light strip wraps around the outside of the antenna cover to indicate the radiation area; the adjustment knob is installed on the outside of the antenna cover and connected to the light strip control board on the inside, and is used to set the radiation exclusion zone, specifically the starting and ending angles of the radiation exclusion zone; the power module is used to power the entire device. The light strip control board controls the partial lighting and color display of the LED light strip according to the control information, where the red area represents the radiation area, the green area represents the safe area, and the off area represents the radiation exclusion zone, ultimately realizing the indication of the radiation exclusion zone and radiation intensity.

[0007] In operation, the LED strip control board reports the radiation exclusion zone angle indicated by the adjustment knob to the antenna equipment. The antenna transmits its current pointing angle and the microwave transmitter's on / off status to the LED strip control board via the antenna interface module in real time. Based on a preset algorithm and the antenna aperture, the LED strip control board calculates the current angle range of the antenna facing the corresponding radiation area. Simultaneously, it controls the LED beads in the corresponding area of ​​the LED strip to display red or green based on the microwave transmitter's on / off status. The LED control board also monitors the indicated angle of the adjustment knob in real time, turning off the LED beads in the area and reporting the radiation exclusion zone angle to the antenna. When the antenna points to the radiation exclusion zone angle, it triggers the shutdown of the microwave radiation source. By observing the color and on / off status of the LED strip, staff can quickly determine whether they are within the radiation range and proactively avoid it.

[0008] The features of this utility model compared with the prior art are as follows:

[0009] Intuitive display: The on / off state of the LED light strip visually displays the antenna's radiation angle, and red and green colors distinguish between radiation hazard areas and safe areas, making it easy for staff to quickly identify them.

[0010] Real-time updates: Enables real-time information exchange with antenna equipment to ensure the timeliness and accuracy of notification information.

[0011] Improved safety: Effectively prevents staff from accidentally entering radiation areas, reducing the risk of radiation damage, while also ensuring that personnel within radiation-free zones are protected from radiation harm. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the components of this utility model.

[0013] Figure 2 Schematic diagram of LED strip installation method

[0014] Figure 3 Schematic diagram of antenna surface radiation angle

[0015] Figure 4 Three-dimensional field lobe diagram and horizontal radiation intensity cross-section diagram of a directional antenna

[0016] Figure 5 System operation flowchart

[0017] In the attached diagram: 1 is the LED light strip, 2 is the LED bead, 3 is the power module, 4 is the light strip control board, 5 is the adjustment knob, 6 is the buckle, 7 is the antenna lower cover, 8 is the antenna radiation normal, 9 is the servo turntable, 10 is the antenna surface, 11 is the antenna main lobe, 12 is the antenna side lobe, 13 is the antenna back lobe, 14 is the antenna three-dimensional field lobe diagram, P is the connection between the antenna surface and the rear waveguide, θ is the antenna beam normal deviation angle, and S is the direct radiation area of ​​the antenna surface. Detailed Implementation

[0018] To better illustrate the technical solution of this utility model, further detailed description is provided below in conjunction with the accompanying drawings and specific embodiments.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides an antenna radiation angle indication and setting device, such as... Figure 1 As shown, the LED light strip (1) uses RGB full-color LED light strip. Several LED beads (2) are evenly distributed on the LED light strip (1). The power supply voltage is DC12V. It is sealed with a flexible transparent silicone sleeve and the protection level is required to be IP67 to meet the outdoor use requirements of the equipment. One end of the LED light strip (1) leads out a control cable, which is connected to the inside of the antenna cover through a waterproof aviation plug and connected to the light strip control board (4) integrated in the cover. One end of the light strip control board (4) is connected to the power module (3), and the other end is connected to the antenna controller through a serial port for information exchange with the antenna equipment. The two adjustment knobs (5) are absolute encoders, which are installed on the lower cover (7) of the antenna. The rotating adjustment end is on the outside of the lower cover, and the other end is inside the antenna cover and connected to the light strip control board (4). The adjustment knobs (5) and the light strip control board (4) communicate through a serial port. Rotating the two adjustment knobs (5) can change the starting angle and ending angle of the radiation exclusion zone. The two adjustment knobs (5) are required to have an IP67 protection level to meet the outdoor use requirements of the equipment. The power supply module (3) is an AC220V to DC12V module used to supply power to the LED strip control board (4) and the LED strip (1).

[0021] like Figure 2 As shown, the LED light strip (1) is fixed to the outside of the antenna cover (7) by the buckle (6) installed on the antenna cover (7). The installation method is that the LED beads (2) face outward, the first LED bead (2) at the output end of the LED light strip (1) coincides with the antenna azimuth angle of 0°, and is inserted into the buckle (6) in a clockwise direction around the antenna cover (7).

[0022] like Figure 3 As shown, the antenna surface (10) is mounted on the servo turntable (9), the antenna radiation normal (8) is aligned with the antenna surface (10), and the antenna beam normal deviation angle (θ) represents the angle between a certain direction in space and the antenna radiation normal (8).

[0023] like Figure 4 As shown, the left side is the three-dimensional field lobe diagram of the antenna surface (14), and the right side is the cross-sectional diagram of the horizontal radiation intensity of the antenna surface. The right figure shows the radiation intensity at different antenna beam normal deviation angles (θ). The area with the strongest antenna radiation is directly in front of the antenna surface. As the antenna beam normal deviation angle (θ) increases, the radiation intensity gradually weakens. When the radiation intensity is lower than the safety threshold, the system judges it as a safe area. The antenna beam normal deviation angle (θ) at this time is defined as the radiation angle Q. That is, the area with a deviation greater than Q is a safe area, and the area with a deviation less than Q is a radiation area. Generally, the side lobes (12) and back lobes (13) of the antenna have low radiation intensity and can be regarded as safe areas. The specific threshold can be obtained through actual testing, and the corresponding radiation angle Q can be obtained. The selection of the Q angle should be slightly larger than the direct radiation area (S) of the antenna surface to warn relevant personnel to avoid direct microwave radiation.

[0024] like Figure 5 The system operation flowchart shown is as follows. The system first enters the initialization, and at the same time lights up all LED beads (2), and switches the RGB bead colors in sequence. At this time, the user needs to judge by visual inspection whether all LED beads (2) are working properly. If there are individual lights or abnormal colors, they need to be repaired or replaced in time to ensure the accuracy of the LED strip (1) indication.

[0025] After initialization, the system enters the handshake state. At this time, all LED beads (2) flash at low brightness and actively report the angle of the radiation exclusion zone. After receiving the antenna return instruction, the initial handshake is completed. If the LED strip (1) remains in a low brightness flashing state for a long time, the staff should immediately investigate the cause of the problem.

[0026] After a successful handshake, the antenna controller actively sends the real-time pointing angle and microwave transmitter switch status to the LED strip control board (4). The LED strip control board (4) will automatically determine whether to turn off or on the LED strip (1) in a certain area according to the internal algorithm, and at the same time control the color of the LED beads (2) in the illuminated area, so as to realize the antenna radiation angle indication. When the communication between the antenna device and the LED strip control board (4) is interrupted, all LED beads (2) of the LED strip (1) enter a low brightness flashing state. At this time, the LED strip (1) does not have the radiation indication function, and the fault should be checked in time.

[0027] The internal algorithm is implemented as follows:

[0028] Since the LED beads (2) are evenly distributed on the LED strip (1), after receiving the control command, the strip control board (4) first calculates the angle range indicated by each LED bead (2) as B=360° / A according to the number A of the LED beads (2), and defines the LED bead (2) corresponding to azimuth 0° as 1, and the last LED bead (2) is numbered A clockwise; then calculates the number of LED beads (2) corresponding to this area as C=Q / B according to the radiation angle Q; finally calculates the number of LED beads (2) directly opposite to this angle as D according to the current angle of the antenna, let E= D+C, F=DC, add the LED bead (2) number boundary judgment, if E>A, then E=EA, if F<1, then F=F+A, the area between the LED bead (2) number E and F is the equivalent radiation area in the horizontal direction of the antenna surface. When the microwave source is turned on, the LED strip control board (4) lights up the LED beads (2) between E and F as red, the LED beads (2) in the radiation exclusion zone are turned off, and the LED beads (2) in other areas are green; when the microwave source is turned off, the LED strip control board (4) controls the LED beads (2) in the radiation exclusion zone to turn off, and the LED beads (2) in other areas are green; finally, the indication of the antenna radiation area is realized.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0030] In summary, this utility model is not limited to the above-described embodiments. Those skilled in the art can easily understand the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An antenna radiation angle indication and setting device, characterized in that, include: LED light strip (1), on which a number of LED beads (2) are distributed at equal intervals; The LED strip control board (4) is connected to the LED strip (1); The power module (3) supplies power to the light strip control board (4); Adjustment knob (5) is connected to the light strip control board (4); The LED light strip (1) is installed on the outside of the antenna cover, and the first LED bead (2) at the output end of the LED light strip (1) coincides with the antenna azimuth at 0°. The LED light strip (1) is wrapped clockwise around the outside of the antenna cover.

2. The antenna radiation angle indication and setting device according to claim 1, characterized in that: The LED light strip (1) has an IP67 protection rating.

3. The antenna radiation angle indication and setting device according to claim 1, characterized in that: The adjustment knob (5) has an IP67 protection rating.

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