Intelligent trench lighting system for locomotive maintenance
Through the intelligent lighting system combined with infrared and photosensitive sensors, the problem of maintenance of trench lighting equipment cannot be turned off due to human negligence, and automatic control and energy saving and consumption reduction are achieved.
Patent Information
- Application Number
- CN202422496141.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The maintenance of trench lighting equipment cannot be turned off in time due to human negligence, resulting in waste of electricity and shortening of equipment life.
An intelligent lighting system is adopted that combines infrared control units and light-sensitive control units. It uses infrared sensors to detect the presence of human bodies, light-sensitive sensors to detect the position of the locomotive, automatically control the switches of the lighting equipment, and combines sound and light alarms to provide safety prompts.
It realizes automatic control of lighting equipment, saves electricity consumption, extends equipment life, and improves production efficiency.
Smart Images
Figure CN223309989U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of automatic control, and in particular relates to an intelligent trench lighting system for locomotive maintenance. Background Art
[0002] To inspect the underside of a locomotive, a maintenance trench is typically set up at the maintenance station. Tracks are installed on either side of the trench above the locomotive, and maintenance personnel perform operations in the trench while the locomotive is parked on the tracks. Because the light in the trench is very dim, lighting equipment is necessary. However, due to the lack of automatic control components and human oversight, this lighting often remains "brightly on"—that is, the lighting remains on regardless of whether anyone is working in the trench, and even when there are no locomotives parked on the tracks. This situation not only significantly shortens the lighting equipment's service life but also results in significant energy waste. Utility Model Content
[0003] 1. Technical Problems to be Solved
[0004] The utility model provides an intelligent trench lighting system for locomotive maintenance, which aims to solve the problem that trench lighting equipment cannot be turned off in time due to human negligence during maintenance.
[0005] 2. Technical Solution
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions, including:
[0007] An infrared control unit, a photosensitivity control unit and a power supply unit, the power supply unit provides power for the infrared control unit and is controlled by the photosensitivity control unit; the infrared control unit controls the lighting, sound alarm and light alarm; the infrared control unit includes an infrared sensor, pin 2 of the infrared sensor is connected to the base of the transistor through a first resistor, pin 1 of the infrared sensor is connected to the emitter of the transistor and grounded, pin 3 of the infrared sensor is connected to one end of the second resistor, the other end of the second resistor is connected to the intermediate relay, the other end of the intermediate relay is connected to the collector of the transistor; pin 3 of the infrared sensor is also connected to the normally open contact of the intermediate relay, the other end of the normally open contact is connected to the lighting, the other end of the lighting is grounded; the sound alarm and light alarm are respectively connected in parallel with the lighting.
[0008] Furthermore, the power supply unit includes a power transformer, one end of the secondary winding of the power transformer is connected to a rectifier diode, the other end of the rectifier diode is connected to pin 3 of the infrared sensor and connected to a capacitor, the other end of the capacitor is connected to the other end of the secondary winding of the power transformer and grounded; the primary winding of the power transformer is connected to the photosensitive control unit.
[0009] Furthermore, the photosensitivity control unit includes a phototransistor, the collector of the phototransistor is respectively connected to the third resistor and the positive electrode of the trigger diode, the negative electrode of the trigger diode is connected to the control electrode of the thyristor, the anode of the thyristor is connected to one end of the primary winding of the power transformer, the cathode of the thyristor is connected to the emitter of the phototransistor and connected to one end of the AC 220V power supply, the other end of the primary winding of the power transformer is respectively connected to the positive electrode of the diode and the other end of the AC 220V power supply, and the negative electrode of the diode is connected to the other end of the third resistor.
[0010] Furthermore, the photosensitive control unit also includes a light emitter, which is placed on one side of the locomotive track above the trench, and a phototransistor is placed on the other side of the locomotive track above the trench, and the light emitter cooperates with the phototransistor; the infrared sensor is placed in the trench, and the sound alarm and light alarm are both placed outside the maintenance trench.
[0011] When the locomotive enters the maintenance station, the photosensitive control unit is not triggered due to the obstruction of the locomotive body, and the power supply unit provides DC power to the infrared control unit. At this time, when the maintenance personnel enter the maintenance trench to work, the infrared sensor detects the human body, and the lights in the maintenance trench and the sound and light alarms outside the maintenance trench are all started; when the maintenance work is completed, the maintenance personnel leave the maintenance trench. At this time, the infrared sensor does not detect the human body, and the lights in the maintenance trench and the sound and light alarms outside the maintenance trench are all turned off; after the locomotive leaves the maintenance station, the photosensitive control unit is triggered due to the lack of obstruction of the locomotive body, and the photosensitive control unit cuts off the DC power supply of the power supply unit, putting the infrared control unit into a dormant state, and the lights in the maintenance trench and the sound and light alarms outside the maintenance trench are all turned off.
[0012] 3. Beneficial Effects
[0013] The utility model discloses an intelligent trench lighting system for locomotive maintenance, which effectively solves the problem that trench lighting equipment cannot be turned off in time due to human negligence during maintenance, promotes energy saving and consumption reduction, saves production costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an overall block diagram of the utility model.
[0015] Figure 2 It is a circuit principle diagram of the utility model. DETAILED DESCRIPTION
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can have a clearer understanding.
[0017] Example 1
[0018] like Figure 1As shown, this embodiment includes: an infrared control unit, a photosensitive control unit and a power supply unit. The power supply unit provides power to the infrared control unit and is controlled by the photosensitive control unit; the infrared control unit controls the lighting, sound alarm and light alarm;
[0019] like Figure 2 As shown, the infrared control unit includes an infrared sensor U1, pin 2 of the infrared sensor is connected to the base of the transistor Q1 through the first resistor R1, pin 1 of the infrared sensor is connected to the emitter of the transistor and grounded, pin 3 of the infrared sensor is connected to one end of the second resistor R2, the other end of the second resistor is connected to the intermediate relay JD, and the other end of the intermediate relay is connected to the collector of the transistor; pin 3 of the infrared sensor is also connected to the normally open contact JD-1 of the intermediate relay, the other end of the normally open contact is connected to the lighting lamp D, and the other end of the lighting lamp is grounded; the sound alarm L and the light alarm BJ are respectively connected in parallel with the lighting lamp.
[0020] like Figure 2 As shown, the power supply unit includes a power transformer B1, one end of the secondary winding of the power transformer is connected to the rectifier diode D1, the other end of the rectifier diode is connected to pin 3 of the infrared sensor and connected to the capacitor C1, the other end of the capacitor is connected to the other end of the secondary winding of the power transformer and grounded; the primary winding of the power transformer is connected to the photosensitive control unit.
[0021] like Figure 2 As shown, the photosensitivity control unit includes a phototransistor DU, the collector of the phototransistor is respectively connected to the third resistor R3 and the positive electrode of the trigger diode D3, the negative electrode of the trigger diode is connected to the control electrode of the thyristor VT, the anode of the thyristor is connected to one end of the primary winding of the power transformer, the cathode of the thyristor is connected to the emitter of the phototransistor and connected to one end of the AC 220V power supply, the other end of the primary winding of the power transformer is respectively connected to the positive electrode of the diode D2 and the other end of the AC 220V power supply, and the negative electrode of the diode is connected to the other end of the third resistor.
[0022] The photosensitive control unit also includes a light emitter, which is placed on one side of the locomotive track above the trench, and a phototransistor DU is placed on the other side of the locomotive track above the trench. The light emitter cooperates with the phototransistor; the infrared sensor U1 is placed in the trench, and the sound alarm and light alarm are both placed outside the maintenance trench.
[0023] The working process of this utility model:
[0024] When the locomotive enters the maintenance station, due to the obstruction of the locomotive body, the light beam emitted by the light emitter cannot enter the phototransistor DU in the photosensitivity control unit, the phototransistor is not triggered, the collector of the phototransistor is high, the control pole of the thyristor VT is high, the thyristor is in the on state, the primary winding of the power transformer B1 is connected to the AC 220V power supply, the AC current induced by the secondary winding of the power transformer is rectified by the rectifier diode and filtered by the capacitor, and its DC is transmitted to the infrared control unit; when the maintenance personnel enter the maintenance trench to work, the infrared sensor U1 detects the human body, the pin 2 of the infrared sensor outputs a high level, the base of the transistor Q1 is a high level, the transistor is turned on, the intermediate relay JD is energized, and the normally open contact JD-1 of the intermediate relay is closed, and the lighting D in the maintenance trench is started to facilitate the work of the maintenance personnel. The sound and light alarms outside the maintenance trench are all started, informing the maintenance personnel inside the trench There are staff, please pay attention to safety; when the maintenance work is completed, the maintenance personnel leave the maintenance trench. At this time, the infrared sensor does not detect the human body, the pin 2 of the infrared sensor outputs a low level, the base of the transistor is at a low level, the transistor is cut off, the intermediate relay is released, the normally open contact JD-1 of the intermediate relay is disconnected, the lights in the maintenance trench are turned off, and the sound and light alarms outside the maintenance trench are all turned off; when the locomotive leaves the maintenance station, due to the lack of the locomotive body obstruction, the photosensitive transistor in the photosensitive control unit is triggered, the collector of the photosensitive transistor is at a low level, the control pole of the thyristor is at a low level, the thyristor is in the cut-off state, the primary winding of the power transformer is disconnected from the AC 220V power supply, and the AC input of the power unit is cut off, thereby cutting off the DC power supply of the infrared control unit, making the infrared control unit in a dormant state, the lights in the maintenance trench are turned off, and the sound and light alarms outside the maintenance trench are all turned off.
[0025] The utility model discloses an intelligent trench lighting system for locomotive maintenance, which effectively solves the problem that trench lighting equipment cannot be turned off in time due to human negligence during maintenance, promotes energy saving and consumption reduction, saves production costs, and improves production efficiency.
Claims
1. An intelligent trench lighting system for locomotive maintenance, comprising an infrared control unit, a photosensitive control unit, and a power supply unit, characterized in that: The power supply unit provides power for the infrared control unit and is controlled by the photosensitive control unit; the infrared control unit controls the lighting lamp, the sound alarm, and the light alarm; the infrared control unit comprises an infrared sensor (U1), wherein pin 2 of the infrared sensor is connected to the base of a transistor (Q1) via a first resistor (R1), pin 1 of the infrared sensor is connected to the emitter of the transistor and is grounded, pin 3 of the infrared sensor is connected to one end of a second resistor (R2), the other end of the second resistor is connected to an intermediate relay (JD), and the other end of the intermediate relay is connected to the collector of the transistor; pin 3 of the infrared sensor is also connected to the normally open contact (JD-1) of the intermediate relay, the other end of the normally open contact is connected to the lighting lamp (D), and the other end of the lighting lamp is grounded; the sound alarm (L) and the light alarm (BJ) are respectively connected in parallel with the lighting lamp.
2. The intelligent trench lighting system according to claim 1, characterized in that: The power supply unit includes a power transformer (B1), one end of the secondary winding of the power transformer is connected to a rectifier diode (D1), the other end of the rectifier diode is connected to pin 3 of the infrared sensor and connected to a capacitor (C1), the other end of the capacitor is connected to the other end of the secondary winding of the power transformer and is grounded; the primary winding of the power transformer is connected to a photosensitive control unit.
3. The intelligent trench lighting system according to claim 2, characterized in that: The photosensitive control unit comprises a phototransistor (DU), the collector of the phototransistor being connected to a third resistor (R3) and the positive electrode of a trigger diode (D3), the negative electrode of the trigger diode being connected to the control electrode of a thyristor (VT), the anode of the thyristor being connected to one end of a primary winding of a power transformer, the cathode of the thyristor being connected to the emitter of the phototransistor and to one end of an AC 220V power supply, the other end of the primary winding of the power transformer being connected to the positive electrode of a diode (D2) and the other end of the AC 220V power supply, and the negative electrode of the diode being connected to the other end of the third resistor.
4. The intelligent trench lighting system according to claim 3, characterized in that: The photosensitive control unit further comprises a light emitter, which is arranged on one side of the locomotive track above the trench, and the photosensitive transistor (DU) is arranged on the other side of the locomotive track above the trench, the light emitter and the photosensitive transistor cooperating; the infrared sensor (U1) is placed in the trench; and the sound alarm and the light alarm are both arranged outside the maintenance trench.