Hydropower station operation site risk notification board
By setting up a combination of sensing and alarm modules at the hydropower station operation site, and using multi-layer infrared sensing and microwave radar sensors for dynamic risk warning, the problem of unsatisfactory warning effect of hydropower station safety production risk notification signs has been solved, achieving dual sensory reminders and energy-saving and environmentally friendly risk notification effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA YANGTZE POWER
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-17
AI Technical Summary
The existing safety risk warning signs at hydropower stations are not effective enough and cannot dynamically reflect changes in risks during construction.
It adopts a combination of sensing module, central control module, display module and alarm module. It uses multi-layer infrared sensing device and microwave radar sensor to sense the position of personnel, and provides dynamic risk warnings through display screen and speaker. It also incorporates a brightness control submodule to adapt to natural light environment.
It enables dual-sensory risk alerts for personnel at hydropower station operation sites, provides targeted warnings based on risk levels, reduces the occurrence of safety accidents, and operates energy-efficiently under different lighting conditions.
Smart Images

Figure CN224137773U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of safety warning equipment, and specifically relates to a risk notification sign for hydropower station operation sites. Background Technology
[0002] In the important equipment and facilities areas of hydropower stations, in order to ensure that no safety accidents occur, it is common practice to mark the sources of danger to inform people of safety production risks. That is, for places, equipment, environments and other matters with potential dangers, metal signs with relatively prominent patterns and text are used to remind and warn the relevant personnel of the safety production risks.
[0003] However, since most safety production risk warning signs currently use text and pictures, their warning effect on personnel is not ideal. In addition, due to negligence, relevant personnel sometimes ignore the safety production risk warning signs, which can lead to safety accidents.
[0004] In addition, with the accelerated upgrading and renovation of hydropower station equipment and facilities, the on-site safety risks of equipment and sites are constantly changing due to construction operations. The original static metal signs only show static equipment risks and cannot reflect the dynamic operational risks of the equipment and related areas under construction conditions. Utility Model Content
[0005] This utility model provides a risk notification sign for hydropower station operation sites to solve the problem of poor warning effect of risk notification signs.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A risk notification sign for a hydropower station operation site includes:
[0008] Multiple sensing modules are installed, each located in a high-risk area, to detect whether anyone is approaching.
[0009] A central control module, connected to the sensing module, is used to receive signal commands transmitted by the sensing module and perform signal processing.
[0010] The display module displays different risk warnings based on the varying levels of danger and risk warnings issued by the central control module.
[0011] An alarm module, connected to the display module, is used to verbally announce the danger warning messages displayed on the display module.
[0012] Furthermore, the sensing module includes a first infrared sensing device, a second infrared sensing device, and a third infrared sensing device that are gradually moved closer to the hazard source. The first infrared sensing device is used to transmit a first-level signal to the central control module, the second infrared sensing device is used to transmit a second-level signal to the central control module, and the third infrared sensing device is used to transmit a third-level signal to the central control module.
[0013] Furthermore, a microwave radar sensor is also provided at the first infrared sensing device, and the microwave radar sensor is connected in parallel with the first infrared sensing device and then connected to the central control module.
[0014] Furthermore, the display module includes a display screen, which displays different danger warning messages according to different instructions sent by the central control module.
[0015] Furthermore, the display screen is surrounded by several LED beads, which emit different colors of light according to different instructions transmitted by the central control module.
[0016] Furthermore, the alarm module includes a speaker and a voice controller. The voice controller is connected to both the display module and the central control module, and is used to control the speaker to broadcast according to the content displayed on the display module, and to adjust the speech rate of the voice broadcast according to the instructions of the central control module.
[0017] Furthermore, the display module also includes a static control submodule, which is connected in parallel with multiple sensing modules and is used to send display commands to the display screen when the sensing modules are not triggered.
[0018] Furthermore, the display module also includes a light sensor and a brightness control submodule. The light sensor is used to receive changes in light and generate a current signal, and the brightness control submodule is used to receive the current signal transmitted by the light sensor and control the display brightness of the screen.
[0019] The present invention can achieve the following beneficial effects:
[0020] 1. This application installs a sensing module in a hazardous area. When personnel enter the hazardous area, the sensing module can promptly sense and transmit a signal to the central control module. The central control module can then transmit instructions to the display module and the alarm module, enabling the display module to display and remind users of the risks in a targeted manner, while the alarm module provides voice risk reminders. This allows personnel to perceive the risk warnings through both visual and auditory senses, thereby reducing the occurrence of safety accidents.
[0021] 2. Multi-layer infrared sensing devices are installed so that the display module and alarm module can provide different levels of risk warnings according to the level of danger, thereby enabling personnel to perceive the existence of risks more intuitively and urgently.
[0022] 3. The addition of a brightness control submodule and a light sensor enables the display to adjust its brightness under different natural light environments, thereby reducing energy consumption. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0024] Figure 1 This is a schematic diagram illustrating the design principle of a risk notification sign for a hydropower station operation site according to this utility model.
[0025] Figure 2 This is a plan view of a risk notification sign for a hydropower station operation site according to the present invention.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Sensing module; 11. First infrared sensor; 12. Second infrared sensor; 13. Third infrared sensor; 2. Central control module; 3. Display module; 31. Display screen; 32. LED beads; 33. Static control submodule; 34. Light sensor; 35. Brightness control submodule; 4. Alarm module; 41. Speaker; 42. Voice controller. Detailed Implementation
[0028] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0029] like Figure 1 and Figure 2 As shown, a risk notification sign for a hydropower station operation site includes several sensing modules 1. Sensing modules 1 are installed in all areas of the hydropower station where risks exist, to promptly detect personnel approaching the hazard. For example, sensing modules 1 are installed in areas with a risk of fall, an electric shock, or an impact. Each sensing module 1 includes a first infrared sensing device 11, a second infrared sensing device 12, and a third infrared sensing device 13, with the distance from the hazard increasing progressively. In one specific embodiment, the first infrared sensing device 11 can be installed at a distance of 1 meter from the hazard, the second infrared sensing device 12 at a distance of 3 meters, and the third infrared sensing device 13 at a distance of 5 meters.
[0030] It is also equipped with a central control module 2, a display module 3, and an alarm module 4. The central control module 2 is used to receive signals transmitted by the sensing module 1; the display module 3 includes a display screen 31, which is used to provide risk warnings according to the instructions sent by the central control module 2; the alarm module 4 is connected to both the central control module 2 and the display module 3, and is used to broadcast the risk warnings on the display module 3.
[0031] Specifically, when the third infrared sensor 13 detects a person, it transmits a level 3 signal to the central control module 2. Upon receiving the level 3 signal, the central control module 2 sends a third command to the display module 3 and the alarm module 4. If the person continues to approach the danger source until the second infrared sensor 12 detects the person, the second infrared sensor 12 transmits a level 2 signal to the central control module 2. Upon receiving the level 2 signal, the central control module 2 sends a second command to the display module 3 and the alarm module 4. When the person's location information is detected by the first infrared sensor 11, the first infrared sensor 11 transmits a level 1 signal to the central control module 2. Upon receiving the level 1 signal, the central control module 2 sends a first command to the display module 3 and the alarm module 4. It should be noted that a microwave radar sensor is also installed at the first infrared sensing device 11. The microwave radar sensor is connected in parallel with the first infrared sensing device 11 and then connected to the central control module 2. When a person is detected by the first infrared sensing device 11, it indicates that the person is in a high risk. The microwave radar sensor is also installed at the first infrared sensing device 11. When the first infrared sensing device 11 malfunctions or is not sensitive, the microwave radar sensor can be used to detect the problem, thereby achieving dual sensing, reducing sensing errors, and timely alerting the person to danger.
[0032] The display screen 31 is surrounded by several LED beads 32, which can emit different colors of light according to different commands to warn personnel approaching the danger source. The alarm module 4 includes a speaker 41 and a voice controller 42. The voice controller 42 is connected to both the display module 3 and the central control module 2, and is used to control the speaker 41 to broadcast the content displayed on the display module 3, and to adjust the speech rate of the broadcast according to the commands of the central control module 2.
[0033] In one specific embodiment, the area where the first sensing module 1 is located poses a risk of a person falling, and the area where the second sensing module 1 is located poses a risk of a person being electrocuted. When the first sensing module 1 senses a person approaching, the display screen 31 displays "Do not approach" according to the instruction. When the second sensing module 1 senses a person approaching, the display screen 31 displays "Do not touch" according to the instruction.
[0034] Taking the approach of a person to the first sensing module 1 as an example, when a person is detected by the third infrared sensing device 13 of the first sensing module 1, the central control module 2 simultaneously sends a third command to the display module 3 and the alarm module 4. At this time, the display screen 31 displays the words "Do not approach", the LED beads 32 flash yellow light, and the speaker 41 repeatedly broadcasts "Do not approach" to remind the person of the danger. When the second infrared sensing device 12 detects the presence of a person, the central control module 2 simultaneously sends a second command to the display module 3 and the alarm module 4. At this time, the display screen 31 displays the words "Do not approach", the LED beads 32 flash orange light and the flashing frequency increases, and the speaker 41 simultaneously broadcasts "Do not approach" and the broadcasting frequency increases. When the first infrared sensing device 11 detects the presence of a person, the central control module 2 simultaneously sends a second command to the display module 3 and the alarm module 4. At this time, the display screen 31 displays the words "Do not approach", the LED beads 32 flash red light and the flashing frequency increases accordingly, and the speaker 41 simultaneously broadcasts "Do not approach" and the broadcasting frequency increases and the broadcasting volume increases. It should be noted that the specific reminder text displayed on the display screen 31 can be adjusted adaptively according to the actual situation, and is not limited to the risk warning statements recorded in this application specification.
[0035] If a person approaches both the first sensing module 1 and the second sensing module 1 at the same time, the display screen 31 will alternately display the risk warnings corresponding to the first sensing module 1 and the second sensing module 1, and the LED beads 32 and the speaker 41 will flash and broadcast the warnings alternately.
[0036] Furthermore, the display module 3 also includes a static control submodule 33, which is connected in parallel with multiple sensing modules 1. When the sensing modules 1 are not triggered, the static control submodule 33 sends a display command to the display screen 31. The static control submodule 33 has pre-set static safety risk warning text and graphic information for the equipment and location. When the sensing modules 1 are not triggered, the display screen 31 can provide risk education and notification through pictures or Word format safety risk notification cards.
[0037] In addition, the display module 3 also includes a light sensor 34 and a brightness control submodule 35. The light sensor 34 is disposed on the display screen 31 to receive changes in light and generate a current signal. The brightness control submodule 35 receives the current signal transmitted from the light sensor 34 and controls the display brightness of the display screen 31. By adaptively adjusting the brightness of the display screen 31 according to the intensity of ambient light, it is possible to clearly provide risk information while reducing energy consumption, making it more energy-efficient and environmentally friendly.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A risk informing board for a hydropower plant work site, characterized by, include: Multiple sensing modules (1) are provided and are respectively set in the risky area to sense whether people are approaching; The central control module (2) is connected to the sensing module (1) and is used to receive the signal commands transmitted by the sensing module (1) and perform signal processing. The display module (3) displays different risk warnings based on the different levels of danger and risk warning instructions issued by the central control module (2); The alarm module (4) is connected to the display module (3) and is used to broadcast the danger warning message displayed by the display module (3) via voice.
2. The risk informing board for a hydropower station construction site according to claim 1, characterized in that: The sensing module (1) includes a first infrared sensing device (11), a second infrared sensing device (12), and a third infrared sensing device (13) that are gradually increasing in distance from the hazard source. The first infrared sensing device (11) is used to transmit a first-level signal to the central control module (2), the second infrared sensing device (12) is used to transmit a second-level signal to the central control module (2), and the third infrared sensing device (13) is used to transmit a third-level signal to the central control module (2).
3. A risk informing board for a hydropower plant construction site according to claim 2, characterized in that: A microwave radar sensor is also provided at the first infrared sensing device (11). The microwave radar sensor is connected in parallel with the first infrared sensing device (11) and then connected to the central control module (2).
4. A risk notification sign for a hydropower station operation site according to claim 1, characterized in that: The display module (3) includes a display screen (31), which displays different danger warnings according to different instructions sent by the central control module (2).
5. A risk informing board for a hydropower plant construction site according to claim 4, characterized in that: The display screen (31) is surrounded by several LED beads (32), which emit light of different colors according to different instructions transmitted by the central control module (2).
6. The risk informing board for a hydropower plant construction site according to claim 1, characterized in that: The alarm module (4) includes a speaker (41) and a voice controller (42). The voice controller (42) is connected to both the display module (3) and the central control module (2) and is used to control the speaker (41) to broadcast according to the content displayed by the display module (3) and to adjust the speed of the voice broadcast according to the instructions of the central control module (2).
7. The risk informing board for a hydropower plant construction site according to claim 4, characterized in that: The display module (3) further includes a static control submodule (33), which is connected in parallel with multiple sensing modules (1) and is used to send a display command to the display screen (31) when the sensing module (1) is not triggered.
8. The risk informing board for a hydropower plant construction site according to claim 4, characterized in that: The display module (3) also includes a light sensor (34) and a brightness control submodule (35). The light sensor (34) is used to receive changes in light and generate a current signal. The brightness control submodule (35) is used to receive the current signal transmitted by the light sensor (34) and control the display brightness of the display screen (31).