Equipment isolation system

Abstract

The utility model discloses an equipment isolation system, including unilateral diffuse reflection light curtains, projection lamps, alarm device and controller, a plurality of unilateral diffuse reflection light curtains are used for being installed above the periphery of the equipment, at least one projection lamp is also used for being installed above the periphery of the equipment, and the head of the projection lamp faces the ground and is used for projecting to the ground. The at least one alarm device is used for being installed on the periphery of the equipment, and the unilateral diffuse reflection light curtain, the projection lamp and the alarm device are electrically connected with the controller. The equipment is isolated through the unilateral diffuse reflection light curtain, when a person passes through the light curtain illegally, the unilateral diffuse reflection light curtain transmits a signal to the controller, the controller controls the alarm device to give an alarm, and the projection lamp is used for projecting an alarm or indicating projection on the ground, so that a worker can conveniently know the working state of the current isolation system.

Description

Technical Field

[0001] This utility model relates to the field of security technology for hydropower station equipment, and in particular to an equipment isolation system. Background Technology

[0002] Some critical equipment within hydropower stations requires isolation during operation, particularly in areas such as speed control systems. Currently, equipment is isolated using fencing. While this method effectively isolates the equipment, it is cumbersome, requiring removal for maintenance and replacement afterward. Furthermore, the fencing partially obscures the equipment, hindering inspection. Additionally, the lack of alarms if personnel illegally cross the fencing creates a management loophole. Therefore, based on the current site conditions, a new equipment isolation system is proposed. Utility Model Content

[0003] The purpose of this invention is to provide an equipment isolation system that uses a single-sided diffuse reflection light curtain to isolate equipment. When personnel illegally cross the light curtain, the curtain transmits a signal to the controller, which then activates an alarm device. A projection lamp projects a warning or indicator onto the ground, allowing staff to easily understand the current operational status of the isolation system. This eliminates the need for barriers for isolation, eliminates obstructions during inspections, and provides timely alarm response when personnel illegally cross the line.

[0004] To achieve the above objectives, this utility model provides a device isolation system, including a single-sided diffuse reflection light curtain, a projection lamp, an alarm device, and a controller. Multiple single-sided diffuse reflection light curtains are installed above the periphery of the device, and at least one projection lamp is also installed above the periphery of the device with its head facing the ground for projecting onto the ground. At least one alarm device is installed around the periphery of the device, and the single-sided diffuse reflection light curtain, projection lamp, and alarm device are electrically connected to the controller.

[0005] It also includes a bracket, on which the single-sided diffuse reflection light screen, projection lamp and alarm device are mounted.

[0006] The support structure, viewed from above, is a polygonal structure, a U-shaped structure, or an L-shaped structure.

[0007] The support structure includes uprights and crossbars, with at least one crossbar installed at the top between two uprights on each side.

[0008] Both the uprights and the horizontal railings are made of industrial aluminum profiles, and the uprights and the horizontal railings are connected by matching connectors.

[0009] Two horizontal bars are installed at the top between the two pillars on each side. Multiple projection lights are installed on the upper horizontal bars between the two pillars on each side. A single-sided diffuse reflection light curtain is installed on the lower horizontal bar. An alarm device is installed on the horizontal bars or pillars.

[0010] The projection light includes a first light fixture and a second light fixture, which project different warning patterns onto the ground.

[0011] It also includes cameras, which are used to monitor the equipment.

[0012] Compared with the prior art, this utility model has the following technical effects:

[0013] This invention uses a single-sided diffuse reflection light curtain to isolate equipment. When personnel illegally cross the light curtain, the curtain transmits a signal to the controller, which then activates the alarm device. A projection lamp projects a warning or indicator onto the ground, allowing staff to easily understand the current operational status of the isolation system. Using this system eliminates the need for barriers for isolation, eliminates obstructions during inspections, and provides timely alarm response when personnel illegally cross the line. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below:

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a diagram showing the usage state of this utility model;

[0018] Figure 4 This is a top view of the U-shaped structure of the bracket of this utility model;

[0019] Figure 5 This is a top view of the L-shaped structure of the bracket of this utility model.

[0020] Figure label:

[0021] 10 Single-sided diffuse reflection light curtain, 20 Projector lamp, 21 First lamp, 22 Second lamp, 30 Alarm device, 40 Bracket, 41 Column, 42 Horizontal bar, 43 Connector, 50 Controller, 60 Camera, 70 Equipment. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1:

[0024] Please see Figure 1-5 A device isolation system includes a single-sided diffuse reflection light curtain 10, a projection lamp 20, an alarm device 30, and a controller 50. Multiple single-sided diffuse reflection light curtains 10 are installed above the periphery of a device 70. At least one projection lamp 20 is also installed above the periphery of the device 70, with its head facing the ground for projecting onto the ground. At least one alarm device 30 is installed around the periphery of the device 70. The single-sided diffuse reflection light curtain 10, the projection lamp 20, and the alarm device 30 are electrically connected to the controller 50.

[0025] The equipment is isolated by a single-sided diffuse reflection light curtain 10. When personnel illegally cross the light curtain, the single-sided diffuse reflection light curtain 10 transmits a signal to the controller 50. The controller 50 then activates the alarm device 30 to sound an alarm. The projection lamp 20 projects warning or indicator projections onto the ground, allowing staff to easily understand the current working status of the isolation system. Using this system eliminates the need for barriers for isolation, eliminates obstructions during inspections, and provides timely alarms when personnel illegally cross the line.

[0026] Because of the use of a single-sided diffuse reflection light curtain 10, which can both emit and receive light, the single-sided diffuse reflection light curtain 10 is installed at a height of more than 2 meters. During installation, the emitting end of the single-sided diffuse reflection light curtain 10 faces the ground, and no reflector is installed on the ground. When no one passes by, the single-sided diffuse reflection light curtain 10 does not receive light. When people pass by, because people are at a certain height, the light curtain is reflected on the people's clothes and safety helmets. The light emitted by the single-sided diffuse reflection light curtain 10 is received after reflection and sends a signal to the controller 50.

[0027] Specifically, in one embodiment, the effective protection distance of the single-sided diffuse reflection light curtain 10 is approximately 1.8 meters, meaning the distance from the single-sided diffuse reflection light curtain 10 to the reflective surface is 1.8 meters. If the light curtain is blocked at a distance greater than 1.8 meters, the reflected light cannot be received by the single-sided diffuse reflection light curtain 10, and therefore, the single-sided diffuse reflection light curtain 10 cannot emit a signal. When the single-sided diffuse reflection light curtain 10 is installed at a height of 2 meters, the light emitted by the single-sided diffuse reflection light curtain 10 cannot be received by the single-sided diffuse reflection light curtain 10 itself, and no signal is sent to the controller 50. When a person passes by, the person is approximately 1.7 meters tall. If the safety helmet is used as the reflective surface, the distance between the reflective surface and the single-sided diffuse reflection light curtain 10 is within 0.3 meters. At this point, the light emitted by the single-sided diffuse reflection light curtain 10 can be received by the single-sided diffuse reflection light curtain 10 itself, thus sending a signal to the controller 50.

[0028] Preferably, the alarm device 30 is an audible and visual alarm.

[0029] Preferably, the controller 50 is a PLC or a microcontroller.

[0030] Example 2:

[0031] See Figure 1 It also includes a bracket 40, which surrounds the device 70 to facilitate the installation of the one-sided diffuse reflection light curtain 10, the projection lamp 20, and the alarm device 30. Specifically, the one-sided diffuse reflection light curtain 10, the projection lamp 20, and the alarm device 30 are mounted on the bracket 40.

[0032] See Figure 2 The top view of the support 40 is a polygonal structure, such as a quadrilateral, pentagon or hexagon.

[0033] See Figure 4 The top view of the bracket 40 is a U-shaped structure, which is suitable for working conditions where one side is against a wall.

[0034] See Figure 5 The bracket 40 has an L-shaped structure when viewed from above, making it suitable for applications with corner walls.

[0035] Specifically, Figure 1 In the bracket 40, there are uprights 41 and crossbars 42, with at least one crossbar 42 installed at the top between the two uprights 41 on each side. Figure 1 In order to ensure the stability of the support, two horizontal bars 42 are installed at the top between the two uprights 41 on each side.

[0036] Besides being constructed using profile welding, the support frame 40 can also be assembled. In one embodiment, both the uprights 41 and the horizontal bars 42 are made of industrial aluminum profiles, and are connected by matching connectors 43. Assembling the support frame 40 makes assembly simple and convenient. In this embodiment, the connector 43 is a corner bracket.

[0037] Specifically, two horizontal bars are installed at the top between the two pillars on each side, and multiple projection lamps 20 are respectively installed on the upper horizontal bar 42 between the two pillars 41 on each side. A single-sided diffuse reflection light curtain 10 is installed on the lower horizontal bar 42, and an alarm device 30 is installed on the horizontal bar 42 or the pillar 41.

[0038] See Figure 2 The projection lamp 20 includes a first lamp 21 and a second lamp 22, which project different warning patterns onto the ground. Specifically, when the first lamp 21 is lit, it projects a "No Entry" message onto the ground, and when the second lamp 21 is lit, it projects a "Maintenance Access" message onto the ground.

[0039] Example 3:

[0040] Based on Embodiment 1 or Embodiment 2, a camera 60 is also included, which is used to monitor the equipment 70. In use, the camera 60 is communicatively connected to the factory equipment monitoring system.

[0041] The working principle or operation process of this utility model is as follows:

[0042] When in use, after the isolation system is installed on the device 70, the controller 50 is connected to the power supply, the single-sided diffuse reflection light curtain 10 is activated, the first lamp 21 is lit, and a "No Entry" projection is projected.

[0043] When someone breaks in, the light curtain of the one-sided diffuse reflection light curtain 10 is reflected, and the one-sided diffuse reflection light curtain 10 transmits the signal to the controller 50, and the controller 50 controls the alarm device 30 to issue an alarm.

[0044] During maintenance, the controller 50 is remotely adjusted to enter maintenance mode. At this time, the first light 21 is turned off and the second light 22 is turned on, projecting a "Maintenance Passage" image. When personnel pass by, the alarm device 30 does not sound an alarm.

Claims

1. A device isolation system, characterized by: The device includes a single-sided diffuse reflection light curtain (10), a projection lamp (20), an alarm device (30), and a controller (50). Multiple single-sided diffuse reflection light curtains (10) are installed above the periphery of the device (70), and at least one projection lamp (20) is also installed above the periphery of the device (70). The head of the projection lamp (20) faces the ground for projection onto the ground. At least one alarm device (30) is installed around the periphery of the device (70). The single-sided diffuse reflection light curtain (10), the projection lamp (20), and the alarm device (30) are electrically connected to the controller (50).

2. A device isolation system according to claim 1, wherein: It also includes a bracket (40), on which the single-sided diffuse reflection light curtain (10), the projection lamp (20) and the alarm device (30) are mounted.

3. A device isolation system according to claim 2, wherein: The support (40) can be viewed from above as a polygonal structure, a U-shaped structure, or an L-shaped structure.

4. A device isolation system according to claim 2 or 3, characterized in that: The support (40) includes uprights (41) and crossbars (42), with at least one crossbar (42) installed at the top between two uprights (41) on each side.

5. A device isolation system according to claim 4, wherein: The uprights (41) and the crossbars (42) are both made of industrial aluminum profiles, and the uprights (41) and the crossbars (42) are connected by matching connectors (43).

6. A device isolation system as claimed in claim 4, wherein: Two horizontal bars (42) are installed at the top between the two columns (41) on each side. Multiple projection lamps (20) are installed on the upper horizontal bars (42) between the two columns (41) on each side. A single-sided diffuse reflection light curtain (10) is installed on the lower horizontal bar (42). An alarm device (30) is installed on the horizontal bar (42) or the column (41).

7. The device isolation system of claim 1, wherein: The projection lamp (20) includes a first lamp (21) and a second lamp (22), which project different warning patterns onto the ground.

8. A device isolation system according to claim 1 or 2, wherein: It also includes a camera (60) for monitoring the device (70).

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