Intelligent wind power plant transformer substation fence mistaken entry alarm device and application method

Abstract

An intelligent wind power plant transformer substation fence mistaken entry alarm device comprises a fixing module and a detection module, and the detection module rotates around a pivot relative to the fixing module. The pivot enables the angle between the fixing module and the detection module to be freely adjusted; the detection module is provided with a detection top surface, and a photoelectric probe, a collimation light source and a reflection area are arranged on the detection top surface of the detection module from top to bottom; the alarm devices are matched in pairs for application, so that the calibration detection light path is convenient to operate; two redundant detection light paths are formed among the net bars, so that the safety and the reliability are higher. The installation is simple, the operation is easy, and the stability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of power electronics, and in particular to an intelligent wind farm transformer substation fence misentry alarm device and an application method thereof. Background Art

[0002] At present, wind farms in the new energy industry are developing rapidly, and the skills of practitioners and surrounding personnel are uneven. It is easy to encounter workers blindly and forcibly entering live intervals or live areas.

[0003] If someone illegally breaks into the power repair area without the knowledge of the operating workers, it is very likely to cause a power accident, which will endanger the workers and innocent people and cause property losses. The traditional method currently adopted in domestic maintenance is to set up physical facilities such as warning belts, warning columns or warning fences within a safe distance. This traditional method is not only time-consuming and labor-intensive, but also easily affected by many uncertain factors such as weather and human factors. Therefore, the equipment is often damaged and ultimately fails to play a warning role. Summary of the invention

[0004] The purpose of the present invention is to conveniently set up a warning fence and propose an intelligent wind farm substation fence mis-entry alarm device.

[0005] An intelligent wind farm substation fence misentry alarm device includes a fixing module and a detection module, and is characterized in that:

[0006] The two are connected by a pivot for rotation; the detection module rotates around the pivot relative to the fixed module; the pivot is located on the bottom surface of the connection between the fixed module and the detection module; the pivot allows the angle between the fixed module and the detection module to be adjusted at will;

[0007] The detection module has a detection top surface, which is a surface opposite to the connection bottom surface;

[0008] On the detection top surface of the detection module, photoelectric probes, collimated light sources and reflection areas are installed and arranged from top to bottom.

[0009] An application method of an intelligent wind farm substation fence misentry alarm device, characterized in that:

[0010] 1) Two alarm devices are paired as a group, and the two alarm devices are respectively installed on the fences on both sides;

[0011] 2) The first alarm device and the second alarm device are installed opposite to each other, and the detection top surface of the first alarm device faces the detection top surface of the second alarm device;

[0012] 3) Calibrate the infrared detection optical path;

[0013] 4) Connect to the host computer IoT system for fence monitoring.

[0014] The beneficial effects of the present invention are:

[0015] Compared with the existing technology, the alarm devices are used in pairs, which is convenient for operation and straightening of the detection optical path. Two redundant detection optical paths are formed between the fences, which is safer and more reliable. It has the advantages of simple installation, easy operation and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the structural diagram of the alarm device;

[0017] Figure 2 Layout for top surface detection

[0018] In the figure, there are a fixing module 1, a detection module 2, a pivot 3, a connecting bottom surface 4, a locking device 5, a photoelectric probe 6, a collimated light source 7, a reflection area 8, and a detection top surface 9. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] An intelligent wind farm substation fence misentry alarm device includes a fixing module and a detection module. Both are rectangular parallelepiped structures and are rotatably connected by a pivot.

[0021] The detection module rotates relative to the fixing module around a pivot, and the pivot is located on the connecting bottom surface of the fixing module and the detection module.

[0022] The pivot can adjust the angle between the fixed module and the detection module at will.

[0023] The fixing module can be made of Velcro, strong magnets, U-shaped hoops, etc. to adapt to fences of various widths or be directly attached to the box of live equipment such as box transformers.

[0024] The detection module is provided with a detection alarm circuit, which includes a controller, a photoelectric probe, a communication networking module, an alarm, a collimated light source, and a power supply.

[0025] The controller is electrically connected with the photoelectric probe, the communication networking module, the alarm, and the collimated light source, and the power supply supplies power to each circuit module.

[0026] The detection module has a detection top surface, which is a surface opposite to the connection bottom surface.

[0027] On the detection top surface of the detection module, photoelectric probes, collimated light sources and reflection areas are installed and arranged from top to bottom.

[0028] The photoelectric probe is a reflective photoelectric switch with a transmitting end and a receiving end, which is used to transmit and detect infrared light and receive reflected infrared light.

[0029] The collimated light source is a laser lamp, which can emit a beam of collimated light, and the collimated light is perpendicular to the detection top surface.

[0030] The reflective area is used to reflect the detection infrared light from external irradiation, and the reflective area can be machined to form a smooth surface or covered with a reflective film.

[0031] An alignment calibration pattern is also formed on the surface of the reflection area, and the alignment calibration pattern can be a multi-ring target-shaped pattern.

[0032] When in use, two alarm devices form a group in pairs, and the two alarm devices are respectively arranged on the fences on both sides.

[0033] The first alarm device is installed in a forward direction, with its pivot perpendicular to the ground, and the detection top surface faces the middle area of ​​the fences on both sides. The detection top surface is composed of a photoelectric probe, a collimated light source and a reflection area from top to bottom.

[0034] The second alarm device is installed vertically and reversely. The second alarm device rotates 180 degrees around the horizontal axis relative to the first alarm device. Its pivot is perpendicular to the ground, and the detection top surface faces the middle area of ​​the fence on both sides. The detection top surface from top to bottom is respectively a reflection area, a collimated light source and a photoelectric probe.

[0035] Install the two alarm devices at the same level first.

[0036] Control to turn on the laser light on the first alarm device, rotate and adjust the detection module of the first alarm device and the detection module of the second alarm device, adjust so that the first collimated light can irradiate the reflection area of ​​the second alarm device, and further make the beam point of the first collimated light be located at the center of the target.

[0037] The laser light on the second alarm device is controlled to be turned on, and the detection module of the second alarm device is further fine-tuned and rotated. The second collimated light is adjusted so that it can also irradiate the reflection area of ​​the first alarm device, and further the beam point of the second collimated light is located at the center of the target.

[0038] After adjusting the beam points of the first collimated light and the second collimated light to the corresponding bull's eye positions, a horizontal relative working state can be formed between the detection top surfaces of the two alarm devices, that is, after the infrared light beam from the transmitting end of the first alarm device is projected onto the reflection area of ​​the second alarm device, the reflected infrared light beam can return along the original route and be received by the receiving end of the first alarm device, thus forming an infrared detection optical path with good performance.

[0039] Similarly, after the infrared light beam from the transmitting end of the second alarm device is projected onto the reflecting area of ​​the first alarm device, the reflected infrared light beam can return along the original route to be received by the receiving end of the second alarm device.

[0040] After the alignment adjustment is completed, the pivot is locked using a locking device, so that the angle cannot be adjusted at will, and the correct alignment position is maintained during work.

[0041] Turn off the collimated light sources of the two alarm devices.

[0042] A warning fence with two independent infrared detection light paths can be formed between the two alarm devices. When one of the alarm devices fails to work, the other alarm device can still work and detect, providing redundant reliability.

[0043] In addition, when both alarm devices are in normal operation, the host computer can compare the detection signals sent by the two devices to prevent false alarms in the event of interference.

[0044] The alarm uses an audible and visual alarm.

[0045] In practical applications, multiple alarm devices are used to form a closed warning area, which includes multiple warning fences formed between pairs of alarm devices.

[0046] Each alarm device forms an Internet of Things system with the host computer through a communication networking module. The host computer is a web alarm platform located in the monitoring room.

[0047] If someone approaches the warning fence of the warning area, the infrared detection light path of the warning fence is blocked, and the alarm will flash and sound to warn the unauthorized personnel who are trying to enter the warning zone that there is danger ahead and they should take a detour. After the unauthorized personnel leave, the infrared detection light path returns to normal.

[0048] The alarm signal can be transmitted to the monitoring room for alarm through the communication networking module. The communication networking module can adopt a WIFI module.

[0049] The power supply is a 12V battery, which can meet the operation of the device for 48 hours when fully charged. The battery is reduced from 12V to 5V to power the device. That is, the external +12V power supply can be converted into a stable +5V DC voltage through a step-down chopper circuit, and can provide a maximum continuous power output of 15W. In this way, power supply is achieved. The battery has the characteristics of small size, stable voltage, strong endurance, and easy replacement.

[0050] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; 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 the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0052] Finally, it should be noted that the above description is only an explanation of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail, those skilled in the art can still modify the technical solutions described above or replace some of the technical features with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent wind farm substation fence misentry alarm device, comprising a fixing module and a detection module, characterized in that: The two are connected by a pivot for rotation; The detection module rotates relative to the fixed module around a pivot; the pivot is located on the connecting bottom surface of the fixed module and the detection module; the pivot enables the angle between the fixed module and the detection module to be adjusted at will; The detection module has a detection top surface, which is a surface opposite to the connection bottom surface; On the detection top surface of the detection module, photoelectric probes, collimated light sources and reflection areas are installed and arranged from top to bottom.

2. According to claim 1, a smart wind farm substation fence misentry alarm device is characterized in that: The detection module is provided with a detection alarm circuit, which includes a controller, a photoelectric probe, a communication networking module, an alarm, a collimated light source, and a power supply; The controller is electrically connected with the photoelectric probe, the communication networking module, the alarm, and the collimated light source, and the power supply supplies power to each circuit module.

3. According to claim 1, a smart wind farm substation fence misentry alarm device is characterized in that: The photoelectric probe is a reflective photoelectric switch with a transmitting end and a receiving end, which is used to transmit and detect infrared light and receive reflected infrared light.

4. According to claim 1, a smart wind farm substation fence misentry alarm device is characterized in that: The collimated light source is a laser lamp, which can emit a beam of collimated light, and the collimated light is perpendicular to the detection top surface.

5. According to claim 1, a smart wind farm substation fence misentry alarm device is characterized in that: The reflective area is used to reflect the detection infrared light from external irradiation, and the reflective area can be machined to form a smooth surface or covered with a reflective film.

6. According to claim 5, a smart wind farm substation fence misentry alarm device is characterized in that: An alignment calibration pattern is formed on the surface of the reflection area, and the alignment calibration pattern adopts a multi-circle ring-shaped target pattern.

7. According to claim 1, a smart wind farm substation fence misentry alarm device is characterized in that: The modules are fixed with Velcro, strong magnets or U-shaped hoops.

8. An application method of the intelligent wind farm substation fence misentry alarm device as claimed in claim 1, characterized in that: 1) Two alarm devices are paired as a group, and the two alarm devices are respectively installed on the fences on both sides; 2) The first alarm device and the second alarm device are installed opposite to each other, and the detection top surface of the first alarm device faces the detection top surface of the second alarm device; 3) Calibrate the infrared detection optical path; 4) Connect to the host computer IoT system to monitor the fence.

9. The application method according to claim 8, characterized in that: In step 2), Install the two alarm devices at the same level first; The first alarm device is installed in a forward direction, with its pivot perpendicular to the ground, and the detection top surface faces the middle area of ​​the fences on both sides; the detection top surface is composed of a photoelectric probe, a collimated light source and a reflection area from top to bottom; The second alarm device is installed vertically and reversely, and the second alarm device rotates 180 degrees around the horizontal axis relative to the first alarm device; its pivot is perpendicular to the ground, and the detection top surface faces the middle area of ​​the fences on both sides; the detection top surface from top to bottom are the reflection area, collimated light source and photoelectric probe.

10. The method of use according to claim 9, characterized in that: In step 3), Controlling to turn on the laser light on the first alarm device, rotating and adjusting the detection module of the first alarm device and the detection module of the second alarm device, adjusting so that the first collimated light can irradiate the reflection area of ​​the second alarm device, and further making the beam point of the first collimated light be located at the center of the target; Control to turn on the laser light on the second alarm device, and continue to fine-tune and rotate the detection module of the second alarm device; adjust so that the second collimated light can also irradiate the reflection area of ​​the first alarm device, and further make the beam point of the second collimated light be located at the center of the target; After adjusting the beam points of the first collimated light and the second collimated light to the corresponding bull's eye positions, a horizontal state is formed between the detection top surfaces of the two alarm devices, that is, after the infrared light beam from the transmitting end of the first alarm device is projected onto the reflection area of ​​the second alarm device, the reflected infrared light beam can return along the original route to be received by the receiving end of the first alarm device, thus forming an infrared detection optical path with good performance; Similarly, after the infrared light beam from the transmitting end of the second alarm device is projected onto the reflecting area of ​​the first alarm device, the reflected infrared light beam can return along the original route to be received by the receiving end of the second alarm device.

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