A millimeter wave radar-based work area safety monitoring device

Abstract

This utility model discloses a work area safety monitoring device based on millimeter-wave radar, including a detection box. A display screen is fixedly installed on the outer wall of the detection box, and an audible and visual alarm is fixedly installed on one side of the outer wall of the detection box. An adjustment structure is provided on the front side of the detection box. The adjustment structure includes a positioning seat fixedly installed on the outer wall of the detection box. An adjustment motor is fixedly installed on the outer wall of the positioning seat, and a worm gear is fixedly connected to the output end of the adjustment motor. A worm wheel is meshed with the outer wall of the worm gear, and a rotating rod is fixedly connected to the middle of the worm wheel. An adjustment plate is provided on the outer wall of the rotating rod. A drive motor is provided above one end of the adjustment plate, and a fixed support plate is provided below the adjustment plate. Three sets of long-range millimeter-wave radars are provided on the upper end of the fixed support plate, which can realize multi-angle adjustment of the millimeter-wave radar to facilitate multi-directional detection of the work area, improve the monitoring coverage, and avoid monitoring blind spots.

Description

Technical Field

[0001] This utility model relates to the field of safety monitoring technology, and in particular to a work area safety monitoring device based on millimeter-wave radar. Background Technology

[0002] Millimeter-wave radar is a radar system that uses millimeter waves for detection and ranging. Millimeter waves typically refer to electromagnetic waves with wavelengths between 1 and 10 millimeters, corresponding to a frequency range of 30 GHz to 300 GHz. Compared with radars in other bands, millimeter-wave radar has unique advantages. Its shorter wavelength allows the radar antenna to be made smaller, making it easier to integrate into various devices. At the same time, it can achieve higher angular resolution, enabling more accurate identification of the shape and details of targets.

[0003] In many work scenarios, such as industrial production workshops, construction sites, and power maintenance areas, ensuring the safety of the work area is of paramount importance. Traditional millimeter-wave radar modules have a fixed installation angle, making it difficult to flexibly adjust the detection direction according to the dynamic changes of the work area. For irregularly shaped work areas, monitoring blind spots and omissions are likely to occur. To address these issues, a work area safety monitoring device based on millimeter-wave radar is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a work area safety monitoring device based on millimeter-wave radar to solve the problems mentioned in the background art.

[0005] To address the aforementioned issues, the following technical solution is provided: a work area safety monitoring device based on millimeter-wave radar, comprising a detection housing, a display screen fixedly mounted on the outer wall of the detection housing, and an audible and visual alarm fixedly mounted on one side of the outer wall of the detection housing. An adjustment structure is provided on the front side of the detection housing, the adjustment structure including a positioning seat fixedly mounted on the outer wall of the detection housing, an adjustment motor fixedly mounted on the outer wall of the positioning seat, and a worm gear fixedly connected to the output end of the adjustment motor. A worm wheel is meshed with the outer wall of the worm gear, and a rotating rod is fixedly connected to the middle of the worm wheel. An adjustment plate is provided on the outer wall of the rotating rod, a drive motor is provided above one end of the adjustment plate, and a fixed support plate is provided below the adjustment plate. Three sets of long-range millimeter-wave radars are provided at the upper end of the fixed support plate, and two short-range millimeter-wave radars are respectively provided at the bottom of the three sets of long-range millimeter-wave radars. A data processing box is provided inside the detection housing.

[0006] As a preferred embodiment of the above technical solution, a data display screen is fixedly installed on the outer wall of the detection box, the worm and worm wheel are matched in position and are rotatably installed inside the limiting sleeve, and the limiting sleeve is fixedly installed on the outer wall of the positioning seat.

[0007] As a preferred embodiment of the above technical solution, the rotating rod is rotatably installed inside the positioning seat, and the rotating rod and the adjusting plate are fixedly connected, and a protective cover is provided on the outer wall of the drive motor.

[0008] As a preferred embodiment of the above technical solution, the output end of the drive motor is fixedly connected to a rotating disk, and the rotating disk is fixedly mounted on a fixed support plate. Three limiting frames are fixedly provided at the upper end of the fixed support plate, and both the long-range millimeter-wave radar and the short-range millimeter-wave radar are located inside the limiting frames.

[0009] As a preferred embodiment of the above technical solution, a power supply box is fixedly installed inside the detection box, the power supply box and the data processing box are positioned opposite each other, and a communication module is installed above the data processing box on the inner wall of the detection box.

[0010] As a preferred embodiment of the above technical solution, the power supply box, data processing box, communication module, and audible and visual alarm are all connected sequentially via cables.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model device is equipped with an adjustment structure. By starting the adjustment motor, the worm gear meshes with the worm wheel and rotates, causing the worm wheel to drive the adjustment plate on the rotating rod to rotate. This causes the long-range millimeter-wave radar and the short-range millimeter-wave radar to adjust vertically. At the same time, the drive motor starts to drive the fixed support plate on the rotating disk to rotate horizontally in multiple directions. Whether it is early warning of distant targets or precise monitoring at close range, it can be effectively completed, which greatly improves the accuracy and reliability of monitoring, avoids monitoring blind spots, and enables the device to adapt to the monitoring needs of various irregular working areas.

[0012] By incorporating a communication module, power supply box, data processing box, and audible and visual alarm, the data processing box employs advanced algorithms to predict and track the target's movement trajectory. Combined with pre-set safety rules, it performs intelligent analysis. Upon detecting a safety risk, it promptly issues various alarms via the audible and visual alarm, alerting relevant personnel to take measures and effectively prevent accidents. The communication module enables real-time communication between the monitoring device and the remote control center, allowing managers to remotely monitor and manage the work area, promptly understand the monitoring situation, and adjust monitoring parameters, thus improving management efficiency and facilitating effective monitoring of the work area.

[0013] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a work area safety monitoring device based on millimeter-wave radar according to this utility model; Figure 2 This is a schematic diagram of a partial adjustment structure of a work area safety monitoring device based on millimeter-wave radar according to the present invention; Figure 3 for Figure 2 A partial enlarged diagram of the split structure; Figure 4 for Figure 2 Internal structure diagram.

[0015] In the diagram: 1. Detection box; 2. Display screen; 3. Audible and visual alarm; 4. Long-range millimeter-wave radar; 5. Short-range millimeter-wave radar; 6. Adjustment structure; 61. Positioning seat; 62. Adjustment motor; 63. Worm gear; 64. Worm wheel; 65. Limit sleeve; 66. Rotating rod; 67. Drive motor; 671. Protective cover; 68. Rotating disk; 69. Fixed support plate; 691. Limit frame; 7. Adjustment plate; 8. Communication module; 9. Data processing box; 10. Power supply box. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1 to 4 As shown in the figure, this embodiment provides a work area safety monitoring device based on millimeter-wave radar, including a detection box 1. A display screen 2 is fixedly installed on the outer wall of the detection box 1, and an audible and visual alarm 3 is fixedly installed on one side of the outer wall of the detection box 1. An adjustment structure 6 is provided on the front side of the detection box 1. The adjustment structure 6 includes a positioning seat 61 fixedly installed on the outer wall of the detection box 1. An adjustment motor 62 is fixedly installed on the outer wall of the positioning seat 61, and a worm gear 63 is fixedly connected to the output end of the adjustment motor 62. A worm wheel 64 is meshed with the outer wall of the worm gear 63. A rotating rod 66 is fixedly connected to the middle of the worm wheel 64. An adjustment plate 7 is provided on the outer wall of the rotating rod 66. A drive motor 67 is provided above one end of the adjustment plate 7, and a fixed support plate 69 is provided below the adjustment plate 7. Three sets of long-range millimeter-wave radars 4 are provided on the upper end of the fixed support plate 69, and two short-range millimeter-wave radars 5 are respectively provided at the bottom of the three sets of long-range millimeter-wave radars 4. A data processing box 9 is provided inside the detection box 1.

[0018] like Figures 2 to 3As shown, a data display screen 2 is fixedly installed on the outer wall of the detection box 1. The worm gear 63 and worm wheel 64 are matched and rotatably installed inside the limiting sleeve 65. The limiting sleeve 65 is fixedly installed on the outer wall of the positioning seat 61. The rotating rod 66 is rotatably installed inside the positioning seat 61, and the rotating rod 66 is fixedly connected to the adjusting plate 7. The outer wall of the drive motor 67 is provided with a protective cover 671. The output end of the drive motor 67 is fixedly connected to a rotating disk 68, and the rotating disk 68 is fixedly installed on the fixed support plate 69. Three limiting frames 691 are fixedly installed on the upper end of the fixed support plate 69. The long-range millimeter-wave radar 4 and the short-range millimeter-wave radar 5 are both installed inside the limiting frames 691.

[0019] By rotatably positioning both the worm gear 63 and worm wheel 64 inside the limiting sleeve 65, their rotation is limited. A raised ring is provided at the upper end of the rotating disk 68 to ensure relative stability when the rotating disk 68 drives the fixed support plate 69 to rotate. Furthermore, both the long-range millimeter-wave radar 4 and the short-range millimeter-wave radar 5 are designed with waterproof and dustproof materials. The outer shell is made of high-strength aluminum alloy, and an internal vibration-damping buffer layer is installed to reduce the impact of mechanical vibration on the radar and other modules. like Figure 4 As shown, a power supply box 10 is fixedly installed inside the detection box 1. The power supply box 10 and the data processing box 9 are positioned opposite each other. A communication module 8 is installed above the data processing box 9 on the inner wall of the detection box 1. The power supply box 10, the data processing box 9, the communication module 8 and the audible and visual alarm 3 are all connected in sequence by cables.

[0020] By arranging the long-range millimeter-wave radar 4 and the short-range millimeter-wave radar 5 in a triangular pattern, multi-angle, all-around monitoring of the work area can be achieved. Each millimeter-wave radar can operate independently, simultaneously transmitting the detected radar echo data to the data processing box 9 in real time. Upon receiving the radar echo data from the millimeter-wave radar modules, the box first preprocesses the data, including noise removal and filtering, to improve data quality. Then, using a Doppler information decomposition algorithm, it extracts information such as the target's distance, velocity, and angle from the echo data. The data processing box 9 can also analyze and judge the target's behavior according to preset safety rules and thresholds, such as determining the target's... The sound and light alarm 3 is connected to the data processing box 9 to detect whether the target has entered a dangerous area or is speeding. When the data processing box 9 determines that the target has a safety risk, such as entering a preset dangerous area or having an abnormal movement, it immediately sends an alarm signal to the alarm module. The monitoring device can communicate with external devices through the communication module 8. Wireless communication technology, such as Wi-Fi or Bluetooth, can be used, or wired communication, such as Ethernet, can be used. Through the communication module 8, the monitoring device can transmit monitoring data and alarm information to the remote control center in real time, so that managers can conduct unified monitoring and management. The existing technology is relatively mature and widely used.

[0021] The working principle and process of this utility model are as follows: When detecting the work area using millimeter-wave radar, the radar module first continuously transmits millimeter-wave signals into the work area and receives radar echo signals reflected back from the target. The long-range millimeter-wave radar 4 first detects distant targets. When the target enters the detection range of the short-range millimeter-wave radar 5, the short-range millimeter-wave radar 5 starts working to monitor the target more accurately. Each millimeter-wave radar transmits the received echo data to the data processing module in real time. The data processing box 9 preprocesses the received radar echo data, removing noise and interference signals. Then, it utilizes Doppler information... The decomposition algorithm extracts information such as the target's distance, speed, and angle from the echo data. The data processing box 9 judges whether the target's behavior is safe according to preset safety rules and thresholds. If the data processing box 9 judges that the target has a safety risk, it immediately sends an alarm signal to the alarm module. The audible and visual alarm 3 simultaneously issues an audible and visual alarm and a voice alarm. The management personnel of the remote control center can view the real-time monitoring of the work area through the monitoring software and take corresponding measures as needed. The detection equipment is continuously powered by the power supply box 10 during operation, which can effectively monitor the work area and issue alarms to the staff in a timely manner. Meanwhile, during operation, the thin-film wave radar activates the adjusting motor 62 to drive the worm gear 63 to mesh with the worm wheel 64, causing the worm wheel 64 to drive the adjusting plate 7 on the rotating rod 66 to rotate. This causes the long-range millimeter-wave radar 4 and the short-range millimeter-wave radar 5 to rotate vertically. At the same time, the drive motor 67 activates the fixed support plate 69 on the rotating disk 68 to rotate horizontally in multiple directions, effectively eliminating monitoring blind spots and enabling the device to adapt to the monitoring needs of various irregular operating areas.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. A millimeter-wave radar-based work area safety monitoring device, characterized by comprising: The system includes a detection housing (1), on which a display screen (2) is fixedly mounted on the outer wall and an audible and visual alarm (3) is fixedly mounted on one side of the outer wall. An adjustment structure (6) is provided on the front side of the detection housing (1). The adjustment structure (6) includes a positioning seat (61) fixedly mounted on the outer wall of the detection housing (1). An adjustment motor (62) is fixedly mounted on the outer wall of the positioning seat (61), and a worm gear (63) is fixedly connected to the output end of the adjustment motor (62). A worm gear (63) is meshed with the outer wall of the worm gear (63). The worm gear (64) has a rotating rod (66) fixedly connected in the middle. An adjusting plate (7) is provided on the outer wall of the rotating rod (66). A drive motor (67) is provided above one end of the adjusting plate (7) and a fixed support plate (69) is provided below the adjusting plate (7). Three sets of long-range millimeter-wave radars (4) are provided on the upper end of the fixed support plate (69), and two short-range millimeter-wave radars (5) are provided at the bottom of the three sets of long-range millimeter-wave radars (4). A data processing box (9) is provided inside the detection box (1).

2. The millimeter wave radar-based work area safety monitoring device of claim 1, wherein, The outer wall of the detection box (1) is fixedly installed with a data display screen (2). The worm (63) and worm wheel (64) are matched and rotatably installed inside the limiting sleeve (65). The limiting sleeve (65) is fixedly installed on the outer wall of the positioning seat (61).

3. The millimeter-wave radar-based work area safety monitoring device according to claim 2, characterized by The rotating rod (66) is rotatably installed inside the positioning seat (61), and the rotating rod (66) and the adjusting plate (7) are fixedly connected. The outer wall of the drive motor (67) is provided with a protective cover (671).

4. The millimeter-wave radar-based work area safety monitoring device according to claim 3, characterized by The output end of the drive motor (67) is fixedly connected to a rotating disk (68), and the rotating disk (68) is fixedly installed on a fixed support plate (69). Three limiting frames (691) are fixedly set on the upper end of the fixed support plate (69). The long-range millimeter-wave radar (4) and the short-range millimeter-wave radar (5) are both set inside the limiting frames (691).

5. The millimeter wave radar-based work area safety monitoring device of claim 1, wherein, A power supply box (10) is fixedly installed inside the detection box (1). The power supply box (10) and the data processing box (9) are positioned opposite each other. A communication module (8) is installed above the data processing box (9) on the inner wall of the detection box (1).

6. The millimeter-wave radar-based work area safety monitoring device according to claim 5, characterized by The power supply box (10), data processing box (9), communication module (8) and audible and visual alarm (3) are all connected in sequence by cables.

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