Intelligent control system for substation lighting

Abstract

The utility model discloses a transformer substation lighting intelligent control system relates to transformer substation lighting control technical field, contains sensor module, intelligent power distribution and control unit, signal transmission unit, lamp module and distribution box, the sensor module includes illumination sensor, infrared sensor and microwave sensor, and this system can adjust the lighting state according to ambient light, time, weather and personnel activity automatically, realizes the energy -conserving, intelligent, safe transformer substation lighting management, is applicable to all kinds of transformer substation lighting reconstruction and new project, effectively realizes the intelligentization, automation control of lighting, significantly reduces energy consumption, effectively promotes lighting comfort and security, avoids visual fatigue and misoperation, supports a variety of sensor fusion control, adapts complex environmental change, the utility model discloses simple structure, easy installation is applicable to new or reconstruction transformer substation project.

Description

Technical Field

[0001] This utility model relates to the field of substation lighting control technology, and in particular to an intelligent control system for substation lighting. Background Technology

[0002] Power plant lighting provides sufficient brightness to ensure that operation, inspection, and maintenance personnel can clearly identify equipment status and operating procedures, reducing safety accidents caused by insufficient lighting. A comfortable lighting environment can effectively reduce employee visual fatigue, especially in long-term work areas such as the control center, significantly improving work efficiency and accuracy. Appropriate light source color temperature and color rendering index help employees more clearly identify equipment displays and operating interfaces, avoiding misoperation.

[0003] Therefore, developing an efficient and intelligent smart control lighting system has significant practical value and market potential. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a substation lighting intelligent control system that can automatically adjust the lighting status according to ambient light, time, weather and personnel activities, thereby achieving energy saving and intelligent control.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A substation lighting intelligent control system includes a sensor module, a signal conditioning module, a filtering and gating module, an A / D converter, an intelligent power distribution and control unit, a signal transmission unit, a lighting module, and a distribution box. The output of the sensor module is connected to the intelligent power distribution and control unit in sequence through the signal conditioning module, the filtering and gating module, and the ADC acquisition module. The signal transmission unit and the lighting module are respectively connected to the intelligent power distribution and control unit. The distribution box is connected to the intelligent power distribution and control unit.

[0007] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the sensor module includes a light sensor, an infrared sensor, and a microwave sensor, which are installed around the substation and inside the lamps to detect ambient light intensity and human activity; the output terminals of the light sensor, infrared sensor, and microwave sensor are respectively connected to the input terminal of the signal conditioning module.

[0008] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the intelligent power distribution and control unit is located in the distribution box and is used to receive sensor signals, determine the ambient light intensity, and output control signals to adjust the brightness of the lamps.

[0009] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the signal transmission unit uses optical fiber to connect the sensor and the control unit to achieve high-speed and stable signal transmission.

[0010] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the lighting module adopts dimmable LED lighting.

[0011] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the distribution box is installed in the alarm room of the substation.

[0012] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the signal conditioning module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first operational amplifier, a second operational amplifier, and a third operational amplifier. The signal input -IN terminal is connected to one end of the first resistor; the other end of the first resistor is connected to one end of the first capacitor, one end of the third resistor, and the negative power supply pin of the first operational amplifier; the other end of the first capacitor is connected to the other end of the third resistor and the output pin of the first operational amplifier; the signal input +IN terminal is connected to one end of the second resistor; and the other end of the second resistor is connected to the first operational amplifier. The positive power supply pin of the amplifier is connected to one end of the fourth resistor and one end of the second capacitor. The other end of the second capacitor is connected to the other end of the fourth resistor and grounded. The output pin of the first operational amplifier is connected to one end of the fifth resistor. The other end of the fifth resistor is connected to the positive power supply pin of the second operational amplifier. The negative power supply pin of the second operational amplifier is connected to the negative power supply pin of the third operational amplifier. The positive power supply pin of the third operational amplifier is connected to one end of the eighth resistor and one end of the ninth resistor. The other end of the ninth resistor is grounded. The other end of the eighth resistor is connected to one end of the seventh resistor and the output pin of the second operational amplifier. The other end of the seventh resistor is connected to one end of the fourth capacitor. The other end of the fourth capacitor is connected to one end of the ninth resistor. The other end of the ninth resistor is connected to one end of the third capacitor. The other end of the third capacitor is grounded.

[0013] As a further preferred embodiment of the intelligent control system for substation lighting of this utility model, the A / D converter adopts the AD7794 analog-to-digital converter.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] This utility model discloses an intelligent control system for substation lighting, comprising a sensor module, an intelligent power distribution and control unit, a signal transmission unit, a lighting module, and a distribution box. This system can automatically adjust the lighting status according to ambient light, time, weather, and personnel activity, achieving energy-saving, intelligent, and safe substation lighting management. It is suitable for various substation lighting renovation and new construction projects, effectively realizing intelligent and automated lighting control, significantly reducing energy consumption, effectively improving lighting comfort and safety, avoiding visual fatigue and misoperation, supporting multi-sensor fusion control, and adapting to complex environmental changes. This utility model has a simple structure and is easy to install, making it suitable for new or renovated substation projects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a lighting system for a substation lighting intelligent control system proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an intelligent control system for substation lighting proposed in this utility model;

[0018] Figure 3 The circuit diagram is shown for the signal conditioning circuit of the intelligent control system for substation lighting proposed in this utility model. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] A schematic diagram of the lighting system of this utility model is shown below. Figure 1 As shown, it includes multiple sensor modules, an intelligent power distribution and control unit, and a signal transmission unit, which can automatically adjust the lighting status according to ambient light, time, weather, and human activity to achieve energy saving and intelligent control.

[0021] A substation lighting intelligent control system, such as Figure 2 As shown, the system includes a sensor module, a signal conditioning module, a filtering and gating module, an A / D converter, an intelligent power distribution and control unit, a signal transmission unit, a lighting module, and a power distribution box. The output of the sensor module is connected to the intelligent power distribution and control unit via the signal conditioning module, the filtering and gating module, and the ADC acquisition module in sequence. The signal transmission unit and the lighting module are respectively connected to the intelligent power distribution and control unit, and the power distribution box is connected to the intelligent power distribution and control unit.

[0022] The sensor module includes a light sensor, an infrared sensor, and a microwave sensor, which are installed around the substation and inside the lighting fixtures, respectively, to detect ambient light intensity and human activity.

[0023] The signal conditioning module is used to preprocess the light sensor, infrared sensor and microwave sensor;

[0024] Intelligent power distribution and control unit: Located in the power distribution box, it is used to receive sensor signals, determine the ambient light intensity, and output control signals to adjust the brightness of the lamps;

[0025] Signal transmission unit: The sensor and control unit are connected by optical fiber to achieve high-speed and stable signal transmission;

[0026] Lighting module: Uses dimmable LED lights, supports infrared or microwave sensing, and realizes "lights turn on when people come and turn off when people leave";

[0027] Distribution box: Provides power to the entire system and is installed in the alarm room of the substation.

[0028] The intelligent power distribution and control unit has a logic judgment function and can comprehensively adjust the lighting strategy according to factors such as time, weather, and smog.

[0029] like Figure 3 As shown, the signal conditioning module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first operational amplifier, a second operational amplifier, and a third operational amplifier. The signal input -IN terminal is connected to one end of the first resistor. The other end of the first resistor is connected to one end of the first capacitor, one end of the third resistor, and the negative power supply pin of the first operational amplifier. The other end of the first capacitor is connected to the other end of the third resistor and the output pin of the first operational amplifier. The signal input +IN terminal is connected to one end of the second resistor. The other end of the second resistor is connected to the positive power supply pin of the first operational amplifier and one end of the fourth resistor. One end of the first operational amplifier is connected to one end of the second capacitor, and the other end of the second capacitor is connected to the other end of the fourth resistor and grounded. The output pin of the first operational amplifier is connected to one end of the fifth resistor, and the other end of the fifth resistor is connected to the positive power supply pin of the second operational amplifier. The negative power supply pin of the second operational amplifier is connected to the negative power supply pin of the third operational amplifier. The positive power supply pin of the third operational amplifier is connected to one end of the eighth resistor and one end of the ninth resistor, respectively. The other end of the ninth resistor is grounded. The other end of the eighth resistor is connected to one end of the seventh resistor and one end of the second operational amplifier, respectively. The other end of the seventh resistor is connected to one end of the fourth capacitor, and the other end of the fourth capacitor is connected to one end of the ninth resistor, respectively. The other end of the ninth resistor is connected to one end of the third capacitor, and the other end of the third capacitor is grounded.

[0030] The signal conditioning module amplifies and filters the data before inputting it into the signal conversion circuit, greatly reducing signal noise and signal loss during measurement. The amplification circuit consists of an OPA277 operational amplifier and resistors and capacitors, which is a typical differential amplifier circuit. Meanwhile, C3 and R6, C4 and R7 form a low-pass filter, and two OPA277 operational amplifiers form a dual op-amp band-pass filter. The Q value and center frequency of the band-pass filter are adjustable. Adjusting R9 can adjust the resonant frequency of the circuit, and adjusting R8 can adjust the Q value of the circuit. It is worth noting that the signal output is sent to the signal processing circuit and then input to the AD7794 for digital-to-analog conversion, converting the analog signal into a digital signal, which is beneficial for long-distance wireless signal transmission.

[0031] During system installation, light sensors are placed around the substation and on each floor of the main control building, while infrared and microwave sensors are placed in areas with frequent personnel activity. The control unit receives sensor data via fiber optic cable and controls the switching and brightness adjustment of the lights according to preset strategies. For example, it automatically dims or turns off some lights during the day when there is sufficient sunlight, increases brightness at night or on cloudy days, and automatically turns on the lighting in the corresponding area when personnel activity is detected.

[0032] This invention provides an intelligent control device for substation lighting, which has the following advantages: Automatic selection and matching of power and light source: The lighting system automatically adjusts the switching and brightness of the light source according to the ambient light intensity, time, and functional requirements of the area. High degree of intelligent control: The intelligent lighting system monitors ambient brightness in real time by deploying light sensors. When natural light is sufficient, the system automatically reduces the power of the lamps or turns off unnecessary lamps; on cloudy days or at night, it automatically increases the power to maintain a suitable light level. Some areas are also equipped with infrared or microwave sensors to achieve automatic sensing control of "lights on when people are present, lights off when people leave."

[0033] This system can automatically adjust the lighting status according to ambient light, time, weather and personnel activities, realizing energy-saving, intelligent and safe substation lighting management. It is suitable for various substation lighting renovation and new construction projects, effectively realizing intelligent and automated lighting control, significantly reducing energy consumption, effectively improving lighting comfort and safety, avoiding visual fatigue and misoperation, supporting the fusion control of multiple sensors, and adapting to complex environmental changes. This utility model has a simple structure and is easy to install, and is suitable for new or renovated substation projects.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 substation lighting intelligent control system, characterized in that: It includes a sensor module, a signal conditioning module, a filtering and gating module, an A / D converter, an intelligent power distribution and control unit, a signal transmission unit, a lighting module, and a power distribution box. The output of the sensor module is connected to the intelligent power distribution and control unit in sequence through the signal conditioning module, the filtering and gating module, and the ADC acquisition module. The signal transmission unit and the lighting module are respectively connected to the intelligent power distribution and control unit. The power distribution box is connected to the intelligent power distribution and control unit.

2. The intelligent control system for substation lighting according to claim 1, characterized in that: The sensor module includes a light sensor, an infrared sensor, and a microwave sensor, which are installed around the substation and inside the lighting fixtures to detect ambient light intensity and human activity; the output terminals of the light sensor, infrared sensor, and microwave sensor are respectively connected to the input terminal of the signal conditioning module.

3. The intelligent control system for substation lighting according to claim 1, characterized in that: The intelligent power distribution and control unit is located in the power distribution box and is used to receive sensor signals, determine the ambient light intensity, and output control signals to adjust the brightness of the lamps.

4. The intelligent control system for substation lighting according to claim 1, characterized in that: The signal transmission unit uses optical fiber to connect the sensor and the control unit to achieve high-speed and stable signal transmission.

5. The intelligent control system for substation lighting according to claim 1, characterized in that: The lighting module uses dimmable LED lights.

6. The intelligent control system for substation lighting according to claim 1, characterized in that: The distribution box is installed in the alarm room of the substation.

7. The intelligent control system for substation lighting according to claim 1, characterized in that: The signal conditioning module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first operational amplifier, a second operational amplifier, and a third operational amplifier. The signal input -IN terminal is connected to one end of the first resistor. The other end of the first resistor is connected to one end of the first capacitor, one end of the third resistor, and the negative power supply pin of the first operational amplifier. The other end of the first capacitor is connected to the other end of the third resistor and the output pin of the first operational amplifier. The signal input +IN terminal is connected to one end of the second resistor. The other end of the second resistor is connected to the positive power supply pin of the first operational amplifier and one end of the fourth resistor. One end of the second capacitor is connected to the other end of the fourth resistor and grounded. The output pin of the first operational amplifier is connected to one end of the fifth resistor. The other end of the fifth resistor is connected to the positive power supply pin of the second operational amplifier. The negative power supply pin of the second operational amplifier is connected to the negative power supply pin of the third operational amplifier. The positive power supply pin of the third operational amplifier is connected to one end of the eighth resistor and one end of the ninth resistor. The other end of the ninth resistor is grounded. The other end of the eighth resistor is connected to one end of the seventh resistor and the output pin of the second operational amplifier. The other end of the seventh resistor is connected to one end of the fourth capacitor. The other end of the fourth capacitor is connected to one end of the ninth resistor. The other end of the ninth resistor is connected to one end of the third capacitor. The other end of the third capacitor is grounded.

8. The intelligent control system for substation lighting according to claim 1, characterized in that: The A / D converter used is the AD7794 analog-to-digital converter.

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