Cable tunnel lighting control system based on natural light guide mechanism

Abstract

This invention relates to a cable tunnel lighting control system based on a natural light-guiding mechanism, belonging to the field of power equipment technology. The system includes a light-guiding duct, a lighting control device, and at least two sets of illuminance light sensors. The light-guiding duct extends into the cable tunnel from the ventilation shaft, with one end protruding out of the shaft. The inner wall of the light-guiding duct is coated with an aluminum layer. At least two light-guiding output holes are provided on the side of the light-guiding duct. At least two electrically controlled light sources are connected to the side of the light-guiding duct. The lighting control device and the illuminance light sensors are located inside the cable tunnel, with at least one set of illuminance light sensors located near the lighting control device. This system introduces natural light into the cable tunnel shaft and jacking pipe, adjusting the output of artificial light sources in real time based on the light sensors, thereby maximizing the utilization of natural light energy, reducing energy waste, practicing low-carbon design concepts, and avoiding energy waste.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a cable tunnel lighting control system based on a natural light guide mechanism. Background Technology

[0002] With the deepening of the zero-carbon concept, green and low-carbon design concepts are being continuously refined in the power grid engineering design industry. Currently, in power grid engineering, especially in cable tunnel projects, the high requirements for ancillary facilities such as ventilation, lighting, and drainage necessitate the independent installation of prefabricated substations to supply power for these facilities.

[0003] In related technologies, when power supply and lighting are provided by an independently equipped prefabricated substation, the lighting design for cable tunnels typically needs to meet the relevant illuminance levels. The specific light intensity requirements are then determined directly based on these illuminance levels to configure simultaneously operating artificial light sources. When there is a need for illumination, the artificial light sources will be turned on synchronously.

[0004] However, the light source settings in the relevant technologies do not utilize natural light sources, and cannot combine natural and artificial light sources during illumination, resulting in a certain amount of energy waste. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a cable tunnel lighting control system based on a natural light guide mechanism, which enables artificial light sources and natural light to be combined during the lighting process, thus avoiding energy waste.

[0006] According to the technical solution provided by the present invention, a cable tunnel lighting control system based on a natural light guide mechanism is provided. The system includes a light guide duct, a lighting control device, and at least two sets of illuminance light sensors.

[0007] The light guide duct is used to extend into the interior of the cable tunnel from the ventilation shaft of the cable tunnel, with one end of the light guide duct protruding out of the ventilation shaft;

[0008] The inner wall of the light guide channel is coated with an aluminum layer;

[0009] The side of the light guide duct has at least two light guide output holes, which face the inside of the cable tunnel.

[0010] At least two electrically controlled light sources are connected to the side of the light guide duct, and the electrically controlled light sources are communicatively connected to the lighting control device;

[0011] The lighting control device and the illuminance light sensor are located inside the cable tunnel. Among the illuminance light sensors, at least one set of illuminance light sensors is located near the lighting control device, and at least one set of illuminance light sensors is located at the duct laying position of the cable tunnel.

[0012] In one possible implementation, a light-transmitting glass is embedded in the light guide output hole.

[0013] In one possible implementation, the end of the light guide duct that protrudes from the ventilation duct shaft is covered with waterproof and light-transmitting glass.

[0014] In one possible implementation, the side of the light guide channel has an auxiliary channel;

[0015] The auxiliary duct is connected to the light guide duct;

[0016] The auxiliary duct protruding from the ventilation shaft is covered with waterproof and transparent glass.

[0017] In one possible implementation, the light guide duct and the cable tunnel are fixedly connected by bolts and clamps.

[0018] In one possible implementation, the lighting control device includes a distribution box and a lighting control system;

[0019] The lighting control system is located inside the distribution box;

[0020] Illuminance light sensors and electronically controlled light sources are connected to the lighting control system.

[0021] In one possible implementation, at least two electrically controlled light sources can be controlled independently;

[0022] The brightness of the electronically controlled light source is adjustable.

[0023] The beneficial effects of the technical solution provided by this invention include at least the following:

[0024] By installing light-guiding culverts within the cable tunnel, the system compensates for the lack of natural light within the tunnel through the guiding effect of the culverts. Combined with the control of electrically controlled light sources and a lighting control system, this provides illumination for the cable tunnel. The system introduces natural light into the cable tunnel shaft and jacking pipe, adjusting the output of the artificial light source in real time based on light sensors. This maximizes the utilization of natural light energy, reduces energy waste, embodies the low-carbon design concept, and avoids energy waste. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1This invention provides a schematic diagram of a cable tunnel lighting control system based on a natural light guide mechanism.

[0027] Figure 2 The present invention provides an electrical connection block diagram of a cable tunnel lighting control system based on a natural light guide mechanism.

[0028] Figure 3 This is a schematic diagram of a light guide channel provided by the present invention.

[0029] Figure 4 This is a cross-sectional schematic diagram of a light guide channel provided by the present invention.

[0030] Explanation of reference numerals in the instruction manual:

[0031] 1-Light guide duct, 2-Lighting control device, 3-Illuminance light sensor, 4-Cable tunnel, 5-Ventilation duct shaft, 6-Aluminum coating, 7-Cable;

[0032] 11-Light guide output hole, 12-Electrically controlled light source, 13-Transparent glass, 14-Waterproof transparent glass, 15-Auxiliary duct;

[0033] 21-Distribution box, 22-Lighting control system. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0035] Figure 1 as well as Figure 2 This diagram illustrates a structural schematic and electrical connection block diagram of a cable tunnel lighting control system based on a natural light guide mechanism, provided by an exemplary embodiment of the present invention. Please refer to... Figure 1 The cable tunnel lighting control system based on a natural light-guiding mechanism includes a light guide duct 1, a lighting control device 2, and at least two sets of illuminance light sensors 3. The light guide duct 1 extends into the interior of the cable tunnel 4 through a ventilation shaft 5, with one end protruding from the ventilation shaft 5. The inner wall of the light guide duct 1 is coated with an aluminum layer 6. At least two light guide output holes 11 are provided on the side of the light guide duct 1, facing the interior of the cable tunnel 4. At least two electrically controlled light sources 12 are connected to the side of the light guide duct 1, and the electrically controlled light sources 12 are communicatively connected to the lighting control device 2. The lighting control device 2 and the illuminance light sensors 3 are located inside the cable tunnel 4. At least one set of illuminance light sensors 3 is located near the lighting control device 2, and at least one set of illuminance light sensors 3 is located at the duct laying position of the cable tunnel 4.

[0036] Please refer to Figure 1Cable 7 is installed inside cable tunnel 4, and cable tunnel 4 has ventilation duct shaft 5. Light guide duct 1 starts from ventilation duct shaft 5 and extends inside cable tunnel 4.

[0037] In this embodiment, the light guide duct 1, the lighting control device 2, and the illuminance light sensor 3 are all located inside the cable tunnel 4, and the structure of the cable tunnel 4 is as follows: Figure 1 As shown. The light guide duct 1 protrudes from the ventilation shaft of the cable tunnel 4 to provide lighting. The remaining portion of the light guide duct 1 is located inside the cable tunnel 4. Please refer to... Figure 3 The cross-section of the light guide duct 1 is rectangular, and the inner wall is wrapped with a high-reflectivity aluminum layer coating 6 for efficient light transmission. In the light guide duct 1, there are light guide output holes 11 and electrically controlled light sources 12 on its side. The light guide output holes 11 are used to transmit natural light, and the electrically controlled light sources 12 are used to emit light under the control of the lighting device, so as to provide illumination for the inside of the cable tunnel 4.

[0038] In this embodiment, the illuminance light sensor 3 is used to detect the brightness of the surrounding environment. Given the different brightness requirements between the area near the lighting control device 2 and the interior of the cable tunnel 4, two sets of illuminance light sensors 3 are used: one set located near the lighting device, and the other set located at the laying position of the cable tunnel 4. Optionally, the illuminance light sensor 3 is powered by a dedicated battery with a lifespan of one year. The illuminance light sensor 3 and the lighting control device 2...

[0039] In this embodiment, the lighting control device 2 is a combination of electrical components with power supply and control functions. For example, it is a combination of a distribution box 21 and a controller. The lighting control device 2 is connected to an illuminance light sensor 3 to determine the light intensity inside the cable tunnel 4 in real time. When the light intensity inside the cable tunnel 4 is insufficient, it controls the electrically controlled light source 12 to emit light. In this embodiment, the control rules conform to the following location illuminance data standards:

[0040] Illumination standards for main venues Lighting power density W / square meter Illumination of ordinary sections of utility tunnel 15LX 0.5W Pipe Gallery Manhole Equipment Room 100LX 5W

[0041] In summary, the system provided in this application provides illumination for the cable tunnel by installing light-guiding ducts within the tunnel. The light-guiding effect of these ducts compensates for the tunnel's overall lighting conditions with natural light, and this is combined with the control of electrically controlled light sources and lighting control devices. This system introduces natural light into the cable tunnel shaft and jacking pipe, adjusting the output of the artificial light source in real time based on light sensors. This maximizes the utilization of natural light energy, reduces energy waste, embodies the low-carbon design concept, and avoids energy waste.

[0042] In an optional embodiment, a light-transmitting glass 13 is embedded in the light guide output hole 11.

[0043] Please refer to Figure 3 as well as Figure 4 An opening is made at regular intervals in the light guide duct 1, and a light-transmitting glass 13 is embedded in the opening. The light-transmitting glass 13 can focus and output light. In one example, an opening and a light-transmitting glass 13 are set every 2m in the light guide duct 1, and the opening size is 500mm*500mm.

[0044] In an optional embodiment, please refer to Figure 1 The end of the light guide duct 1 that protrudes from the ventilation duct shaft 5 is covered with waterproof and light-transmitting glass 14. This glass is used to focus light and ensure that the light guide duct 1 is waterproof and dustproof, thereby improving the overall stability of the system.

[0045] In an optional embodiment, please refer to Figure 1 The light guide duct 1 has an auxiliary duct 15 on its side; the auxiliary duct 15 is connected to the light guide duct 1; the end of the auxiliary duct 15 that protrudes from the ventilation duct shaft 5 is covered with waterproof and light-transmitting glass 14.

[0046] In an optional embodiment, the light guide duct 1 and the cable tunnel 4 are fixedly connected by bolts and clamps.

[0047] In an optional embodiment, please refer to Figure 1 The lighting control device 2 includes a distribution box 21 and a lighting control system 22; the lighting control system 22 is located inside the distribution box 21. The illuminance light sensor 3 and the electrically controlled light source 12 are communicatively connected to the lighting control system 22. The distribution box 21 is located on the upper level inside the cable tunnel 4. The lighting control system 22 is implemented as a control cabinet, which includes a host computer for a programmable logic controller (PLC). Operators can preset the internal logic of the PLC to enable the lighting control system to receive data from the illuminance light sensor and set the lighting parameters for the electrically controlled light source. In one example, the PLC model is plc-F X1N-40M R.

[0048] In an optional embodiment, at least two electrically controlled light sources 12 can be independently controlled, and the brightness of the electrically controlled light sources 12 is adjustable to adapt to different light intensity requirements.

[0049] The above are merely optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable tunnel lighting control system based on a natural light-guiding mechanism, characterized in that, The cable tunnel lighting control system based on the natural light guiding mechanism includes a light guiding duct (1), a lighting control device (2), and at least two sets of illuminance light sensors (3). The light guide duct (1) is used to extend into the interior of the cable tunnel (4) from the ventilation duct shaft (5) of the cable tunnel (4), with one end of the light guide duct (1) protruding from the ventilation duct shaft (5). The inner wall of the light guide channel (1) is coated with an aluminum layer (6). At least two light guide output holes (11) are provided on the side of the light guide duct (1), and the light guide output holes (11) face the inside of the cable tunnel; At least two electrically controlled light sources (12) are connected to the side of the light guide duct (1), and the electrically controlled light sources (12) are communicatively connected to the lighting control device (2); The lighting control device (2) and the illuminance light sensor (3) are located inside the cable tunnel. Among the illuminance light sensors (3), at least one set of the illuminance light sensors (3) is located near the lighting control device, and at least one set of the illuminance light sensors (3) is located at the pipe laying position of the cable tunnel. The light guide channel (1) has an auxiliary channel (15) on its side. The auxiliary duct (15) is connected to the light guide duct (1); The auxiliary culvert (15) protruding from the ventilation duct shaft (5) is covered with waterproof and light-transmitting glass (14). A light-transmitting glass (13) is embedded in the light guide output hole (11).

2. The cable tunnel lighting control system based on a natural light guide mechanism according to claim 1, characterized in that, The light guide duct (1) is covered with waterproof and light-transmitting glass (14) at one end protruding from the ventilation duct well.

3. The cable tunnel lighting control system based on a natural light guide mechanism according to claim 1, characterized in that, The light guide duct (1) and the cable tunnel (4) are fixedly connected by bolts and clamps.

4. The cable tunnel lighting control system based on a natural light guide mechanism according to claim 1, characterized in that, The lighting control device (2) includes a power distribution box (21) and a lighting control system (22); The lighting control system (22) is located inside the distribution box (21); The illuminance light sensor (3) and the electronically controlled light source (12) are communicatively connected to the lighting control system (22).

5. The cable tunnel lighting control system based on a natural light guide mechanism according to claim 1, characterized in that, The at least two electrically controlled light sources (12) can be controlled independently; The brightness of the electronically controlled light source (12) is adjustable.

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