Unattended illumination control system

Abstract

The utility model relates to the technical field of intelligent lighting, in particular to an unattended lighting control system, which comprises a patrol lighting unit and a maintenance lighting unit which are in communication connection with terminal equipment, and further comprises a guard lighting unit which is in communication connection with the terminal equipment, the guard lighting unit comprises a control circuit, a communication circuit, a lighting circuit, a human body induction circuit and a power supply circuit, the communication circuit, the lighting circuit and the human body induction circuit are all connected with the control circuit, and the power supply circuit supplies power to the guard lighting unit. And the control circuit is in communication connection with the access control system through the communication circuit. According to the technical scheme, the technical problem that in the prior art, the lighting control effect of an unattended hydropower station is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent lighting, and specifically, to an unattended lighting control system. Background Art

[0002] With the continuous progress of technology and the improvement of the automation level, the operation and management of hydropower stations are gradually transforming into an unattended (few-attended) mode. This mode not only improves work efficiency but also significantly reduces labor costs, becoming an important trend in modern hydropower station management. However, in an unattended environment, the lighting system of hydropower stations faces many challenges and problems, which are directly related to the safe operation, energy efficiency management, and maintenance costs of the power stations. Therefore, the research on the lighting system of unattended hydropower stations is particularly important. Content of the Utility Model

[0003] The utility model provides an unattended lighting control system, which solves the technical problem of poor lighting control effect for unattended hydropower stations in the prior art.

[0004] The technical solution of the utility model is as follows:

[0005] An unattended lighting control system includes a patrol lighting unit and a maintenance lighting unit that are communicatively connected to a terminal device, and further includes a security lighting unit that is communicatively connected to the terminal device. The security lighting unit includes a control circuit, a communication circuit, a lighting circuit, a human body sensing circuit, and a power supply circuit. The communication circuit, the lighting circuit, and the human body sensing circuit are all connected to the control circuit. The power supply circuit supplies power to the security lighting unit. The control circuit establishes a communication connection with an access control system through the communication circuit.

[0006] Further, the lighting circuit includes a light detection branch, a relay K1, an optocoupler U3, a triode Q1, and a lighting lamp U1. The first input terminal of the optocoupler U3 is connected to the control circuit through a resistor R8. The second input terminal of the optocoupler U3 is grounded. The first output terminal of the optocoupler U3 is connected to a 5V power supply. The second output terminal of the optocoupler U3 is grounded through a resistor R2. The base of the triode Q1 is connected to the second output terminal of the optocoupler U3. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the first end of the lighting lamp U1. The second end of the lighting lamp U1 is connected to the normally closed end of the relay through a resistor R3. The common terminal of the relay K1 is connected to a 5V voltage. The output terminal of the light detection branch is connected to the first input terminal of the relay K1. The second input terminal of the relay K1 is grounded.

[0007] Further, the light detection branch includes a resistor R4, a resistor R5, a resistor R6, a photoresistor RT1, a comparator U2, and a triode Q2. The resistor R5 and the resistor R6 are connected in series between the 5V voltage and the ground. The resistor R4 and the photoresistor RT1 are connected in series between the 5V voltage and the ground. The connection point of the resistor R5 and the resistor R6 is connected to the inverting input terminal of the comparator U2. The connection point of the resistor R4 and the photoresistor RT1 is connected to the non-inverting input terminal of the comparator U2. The output terminal of the comparator U2 is connected to the base of the triode Q2 through a resistor R7. The collector of the triode Q2 is connected to the 5V voltage through a resistor R1. The emitter of the triode Q2 is connected to the first input terminal of the relay K1.

[0008] Further, the power supply circuit includes a voltage regulator U5, a voltage regulator U6, and a battery BAT. The positive electrode of the battery BAT is connected to the input terminal of the voltage regulator U5. The output terminal of the voltage regulator U5 outputs a 5V voltage. The output terminal of the voltage regulator U5 is connected to the input terminal of the voltage regulator U6. The output terminal of the voltage regulator U6 outputs a 3.3V voltage.

[0009] Further, the power supply circuit further includes a solar panel, a voltage regulator U7, a charging manager U8, a triode Q3, and a diode D1. The input terminal of the voltage regulator U7 is connected to the solar panel. The output terminal of the voltage regulator U7 is connected to the emitter of the triode Q3. The output terminal of the charging manager U8 is connected to the base of the triode Q3. The collector of the triode Q3 is connected to the anode of the diode D1. The cathode of the diode D1 is connected to the positive electrode of the battery BAT.

[0010] The working principle and beneficial effects of the present utility model are as follows:

[0011] In the present utility model, the control circuit obtains the status information of the access control system through the communication circuit, and detects whether there is anyone around through the human body sensing circuit. When someone stays illegally or breaks in illegally, the access control system sends the door closing information to the control circuit through the communication circuit, and the human body sensing circuit sends the information that there is someone around to the control circuit. The control circuit drives the lighting circuit to work, controls the lighting lamp to light up, warns the outsiders, and is also convenient for monitoring and collecting information, achieving the anti-theft effect.

[0012] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0013] Figure 1 is a structural block diagram of an unattended lighting control system of the present utility model;

[0014] Figure 2It is the circuit diagram of the lighting circuit in an unattended lighting control system of the present utility model;

[0015] Figure 3 It is the circuit diagram of the power supply circuit in an unattended lighting control system of the present utility model. Specific embodiments

[0016] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Embodiment

[0017] This embodiment proposes an unattended lighting control system, including a patrol lighting unit, a maintenance lighting unit, and a security lighting unit that are communicatively connected to a terminal device. Figure 1 It is the structural block diagram of an unattended lighting control system of the present utility model, as Figure 1 shown. The security lighting unit includes a control circuit, a communication circuit, a lighting circuit, a human body sensing circuit, and a power supply circuit. The communication circuit, the lighting circuit, and the human body sensing circuit are all connected to the control circuit. The power supply circuit supplies power to the security lighting unit. The control circuit establishes a communication connection with the access control system through the communication circuit.

[0018] Considering the characteristics of an unattended hydropower station, the lighting of the working environment is not considered. The lighting control when there are people or someone is present should be emphasized. For example, the lighting when maintenance personnel patrol the hydropower station, the lighting when repairing equipment, or the lighting scenario when an outsider breaks in. The lighting requirements when there are people in the unattended hydropower station are realized through the patrol lighting unit and the maintenance lighting unit, and the lighting warning function when there are people in the unattended hydropower station is realized through the security lighting unit. Each lighting unit is communicatively connected to the terminal device to monitor the status of each lighting unit.

[0019] In this embodiment, the control circuit of the patrol lighting unit is composed of an STM32 series single-chip microcomputer and its peripheral circuits. The control circuit obtains the status information of the access control system through the communication circuit, and detects whether there are people around through the human body sensing circuit. When someone stays illegally or breaks in illegally, the access control system sends the door closing information to the control circuit through the communication circuit, and the human body sensing circuit sends the information that there are people around to the control circuit. The control circuit drives the lighting circuit to work, controls the lighting lamp to light up, warns outsiders, and is also convenient for monitoring and collecting information, playing an anti-theft effect.

[0020] Figure 2 It is the circuit diagram of the lighting circuit in an unattended lighting control system of the present utility model, asFigure 2 As shown, the lighting circuit includes a light detection branch, a relay K1, an optocoupler U3, a triode Q1, and a lighting lamp U1. The first input terminal of the optocoupler U3 is connected to the control circuit through a resistor R8. The second input terminal of the optocoupler U3 is grounded. The first output terminal of the optocoupler U3 is connected to a 5V power supply. The second output terminal of the optocoupler U3 is grounded through a resistor R2. The base of the triode Q1 is connected to the second output terminal of the optocoupler U3. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the first end of the lighting lamp U1. The second end of the lighting lamp U1 is connected to the normally closed terminal of the relay through a resistor R3. The common terminal of the relay K1 is connected to a 5V voltage. The output terminal of the light detection branch is connected to the first input terminal of the relay K1. The second input terminal of the relay K1 is grounded.

[0021] In this embodiment, the light detection branch senses the change of the ambient light intensity to control the state of the relay K1. The drive circuit composed of the optocoupler U3 and the triode Q1 can directly control the on-off of the lighting lamp U1 under specific conditions under the action of the control circuit. In this way, the circuit realizes the effect of turning the light on and off through the control circuit at night.

[0022] Further, as Figure 2 shown, the light detection branch includes a resistor R4, a resistor R5, a resistor R6, a photoresistor RT1, a comparator U2, and a triode Q2. The resistor R5 and the resistor R6 are connected in series between the 5V voltage and the ground. The resistor R4 and the photoresistor RT1 are connected in series between the 5V voltage and the ground. The connection point of the resistor R5 and the resistor R6 is connected to the inverting input terminal of the comparator U2. The connection point of the resistor R4 and the photoresistor RT1 is connected to the non-inverting input terminal of the comparator U2. The output terminal of the comparator U2 is connected to the base of the triode Q2 through a resistor R7. The collector of the triode Q2 is connected to the 5V voltage through a resistor R1. The emitter of the triode Q2 is connected to the first input terminal of the relay K1.

[0023] In this embodiment, the resistance value of the photoresistor RT1 changes with the change of the light intensity. When the light intensity increases, the resistance value of RT1 decreases; when the light intensity weakens, the resistance value of RT1 increases. The resistor R4 is connected in series with the photoresistor RT1 to form a voltage-dividing circuit, which converts the change of the light intensity into the change of the voltage signal. At the same time, the resistors R5 and R6 are also connected in series to form another voltage-dividing circuit, which provides a reference voltage for the comparator U2. The comparator U2 compares the voltages at the two input terminals. When the voltage of the voltage-dividing circuit where RT1 is located is higher than the voltage of the voltage-dividing circuit of R5 and R6 (i.e., when the light is weak), U2 outputs a high level; on the contrary, when the voltage of the voltage-dividing circuit where RT1 is located is lower than the reference voltage (i.e., when the light is strong), U2 outputs a low level. The output of the comparator U2 is connected to the base of the triode Q2 through the resistor R7. When U2 outputs a high level, Q2 conducts, and the resistance between its emitter and collector decreases, which is equivalent to providing a low-level signal for the first input terminal of the relay K1.

[0024] Figure 3 is the circuit diagram of the power supply circuit in an unattended lighting control system of the present utility model, as Figure 3 shown. The power supply circuit includes a voltage regulator U5, a voltage regulator U6, and a battery BAT. The positive electrode of the battery BAT is connected to the input terminal of the voltage regulator U5. The output terminal of the voltage regulator U5 outputs a 5V voltage. The output terminal of the voltage regulator U5 is connected to the input terminal of the voltage regulator U6. The output terminal of the voltage regulator U6 outputs a 3.3V voltage.

[0025] Further, as Figure 3 shown, the power supply circuit further includes a solar panel, a voltage regulator U7, a charge manager U8, a triode Q3, and a diode D1. The input terminal of the voltage regulator U7 is connected to the solar panel. The output terminal of the voltage regulator U7 is connected to the emitter of the triode Q3. The output terminal of the charge manager U8 is connected to the base of the triode Q3. The collector of the triode Q3 is connected to the anode of the diode D1. The cathode of the diode D1 is connected to the positive electrode of the battery BAT.

[0026] The charge manager U8 is used to optimize the charging management of the battery BAT to extend the life of the battery. The voltage regulator U7 is designed to prevent excessive power consumption on the power switch tube Q3 and burn out the switch tube. It steps down the voltage of the solar cell (about 16 - 22V) to output 14.6V, and then charges the battery through the charge manager U8.

[0027] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An unattended lighting control system, comprising a patrol lighting unit and an inspection lighting unit connected to a terminal device for communication, characterized in that: It also includes a guard lighting unit that is communicatively connected to the terminal device, and the guard lighting unit includes a control circuit, a communication circuit, a lighting circuit, a human body sensing circuit and a power supply circuit. The communication circuit, the lighting circuit and the human body sensing circuit are all connected to the control circuit, and the power supply circuit supplies power to the guard lighting unit. The control circuit establishes a communication connection with the access control system via the communication circuit.

2. The unattended lighting control system according to claim 1, characterized in that: The lighting circuit includes a light detection branch, a relay K1, an optocoupler U3, a transistor Q1 and a lighting lamp U1. The first input end of the optocoupler U3 is connected to the control circuit through a resistor R8, the second input end of the optocoupler U3 is grounded, the first output end of the optocoupler U3 is connected to a 5V power supply, the second output end of the optocoupler U3 is grounded through a resistor R2, the base of the transistor Q1 is connected to the second output end of the optocoupler U3, the emitter of the transistor Q1 is grounded, the collector of the transistor Q1 is connected to the first end of the lighting lamp U1, the second end of the lighting lamp U1 is connected to the normally closed end of the relay through a resistor R3, the common end of the relay K1 is connected to a 5V voltage, the output end of the light detection branch is connected to the first input end of the relay K1, and the second input end of the relay K1 is grounded.

3. The unattended lighting control system according to claim 2, characterized in that: The light detection branch includes a resistor R4, a resistor R5, a resistor R6, a photoresistor RT1, a comparator U2 and a transistor Q2, wherein the resistor R5 and the resistor R6 are connected in series between a 5V voltage and ground, the resistor R4 and the photoresistor RT1 are connected in series between a 5V voltage and ground, the connection point of the resistor R5 and the resistor R6 is connected to the inverting input terminal of the comparator U2, the connection point of the resistor R4 and the photoresistor RT1 is connected to the non-inverting input terminal of the comparator U2, the output terminal of the comparator U2 is connected to the base of the transistor Q2 through a resistor R7, the collector of the transistor Q2 is connected to a 5V voltage through a resistor R1, and the emitter of the transistor Q2 is connected to the first input terminal of the relay K1.

4. The unattended lighting control system according to claim 1, characterized in that: The power supply circuit includes a voltage regulator U5, a voltage regulator U6 and a battery BAT, the positive electrode of the battery BAT is connected to the input end of the voltage regulator U5, the output end of the voltage regulator U5 outputs a 5V voltage, the output end of the voltage regulator U5 is connected to the input end of the voltage regulator U6, and the output end of the voltage regulator U6 outputs a 3.3V voltage.

5. The unattended lighting control system according to claim 4, characterized in that: The power supply circuit also includes a solar panel, a voltage regulator U7, a charging manager U8, a transistor Q3 and a diode D1, wherein the input end of the voltage regulator U7 is connected to the solar panel, the output end of the voltage regulator U7 is connected to the emitter of the transistor Q3, the output end of the charging manager U8 is connected to the base of the transistor Q3, the collector of the transistor Q3 is connected to the anode of the diode D1, and the cathode of the diode D1 is connected to the positive electrode of the battery BAT.

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