An emergency power lighting system based on intelligent control

Abstract

The application discloses an emergency power supply lighting system based on intelligent control, which comprises an AC-DC input circuit, a charging circuit, a battery, a DC-DC circuit, an MCU control system, a wireless communication system, a constant voltage and constant power selection circuit, a boost control circuit, a 12V power supply circuit, a dimming switching circuit and an emergency output end. The constant voltage and constant power selection circuit cooperates with the MCU control system, so that the same emergency power supply lighting system can select a constant voltage output mode or a constant power output mode according to a use scene, thereby being compatible with various loads such as LED driving lamps with 0-10V dimming lines, lamps with wall switches, high-voltage inductor lamps, low-voltage inductor lamps, silicon-controlled dimming lamps, non-isolated LED driving lamps, DOB lamps, LED lamp tubes and LED lamp panels, and the universality of the emergency power supply is improved.

Description

Technical Field

[0001] This invention relates to the field of emergency lighting power supply technology, and in particular to an emergency lighting system based on intelligent control. Background Technology

[0002] Existing emergency lighting drivers are typically limited in function, with most only providing emergency power for specific types of lighting fixtures. For example, some emergency power supplies connect directly to LED light panels, achieving emergency lighting through constant current control; others require connection to the lighting fixture driver and adjustment of emergency power using a dimmer switch. For different types of lighting fixtures such as tri-proof lights, bracket lights, high bay lights, UFO lights, DOB lights, and LED tubes, different types of emergency power supplies often need to be selected based on the fixture's driving method, resulting in insufficient versatility.

[0003] For non-isolated driver luminaires without dimming capabilities, existing emergency power supplies typically struggle to adjust their emergency power, making it difficult for a single emergency power supply to be compatible with luminaires using various driving methods. Furthermore, when using emergency power supplies in conjunction with sensors such as light sensors, infrared sensors, and microwave sensors, the sensors may continue to participate in control even after the system enters an emergency state, posing a risk of sensor malfunction and shutting off the emergency power supply.

[0004] Furthermore, current inspection methods for emergency lighting fixtures typically rely on manual on-site testing. For emergency lighting fixtures installed at high locations or scattered throughout the area, staff need to use ladders, aerial ladders, and other tools to inspect each one individually, resulting in high maintenance costs, low efficiency, and the fact that faults in emergency lighting fixtures often only become apparent during power outages, posing significant safety hazards.

[0005] Therefore, it is necessary to provide a new type of emergency power lighting system that is compatible with constant voltage and constant power output, adaptable to various lamp and sensor wiring methods, and capable of remote monitoring and inspection. Summary of the Invention

[0006] The purpose of this invention is to provide an emergency power supply lighting system based on intelligent control, in order to solve the problems of existing emergency power supplies having limited compatibility with different types of lighting fixtures, difficulty in adjusting the emergency power of non-isolated lighting fixtures, the possibility of sensors accidentally turning off emergency lighting in emergency situations, and high costs of manual inspection.

[0007] To achieve the above objectives, the following technical solution is adopted: An emergency power lighting system based on intelligent control includes an AC-DC input circuit, a charging circuit, a battery, a DC-DC circuit, an MCU control system, a wireless communication system, a constant voltage and constant power selection circuit, a boost control circuit, a 12V power supply circuit, a dimming switching circuit, and an emergency output terminal. The output terminal of the AC-DC input circuit is connected to the charging circuit; the charging circuit is connected to the DC-DC circuit and the battery respectively to charge the battery; the DC-DC circuit is connected to the MCU control system, the wireless communication system and the 12V power supply circuit respectively, and the DC-DC circuit is used to convert the DC power output by the AC-DC input circuit into the working voltage for the MCU control system, the wireless communication system and the 12V power supply circuit. The MCU control system is electrically connected to the constant voltage and constant power selection circuit, the boost control circuit, the dimming switching circuit, the emergency output terminal, and the wireless communication system. The MCU control system is used to detect whether there is mains power and to control the system to enter emergency state when the mains power is abnormal. At the same time, the MCU control system is also used to control the emergency output terminal to enter constant voltage output mode or constant power output mode according to the selection state of the constant voltage and constant power selection circuit.

[0008] Furthermore, in constant voltage output mode, the boost control circuit outputs a constant voltage emergency voltage through the emergency output terminal, and the 12V power supply circuit and the dimming switching circuit participate in the operation. The dimming switching circuit is used to allow external dimmers or sensors to control the lamp power when the mains power is normal, and to cut off the control of external dimmers or sensors on the lamp in emergency state, so that the lamp power is controlled by the emergency dimming signal output by the MCU control system.

[0009] Furthermore, in constant power output mode, the boost control circuit outputs a constant power emergency voltage through the emergency output terminal, and the 12V power supply circuit and the dimming switching circuit do not participate in the emergency output control. The emergency output terminal directly performs constant power control on the LED light board, non-isolated LED driver lamp, DOB lamp or LED tube connected to the output terminal.

[0010] Furthermore, the constant voltage output mode is compatible with at least one of the following lamp wiring methods: Wiring method for LED driver with 0-10V dimming and 0-10V external dimmer; Wiring method for LED drivers with 0-10V dimming and wall switches; Wiring method for LED driver with 0-10V dimming and high voltage sensor; Wiring methods for LED drivers, wall switches, and low-voltage sensors with 0-10V dimming; Wiring method for LED drivers and SCR dimmers with SCR dimming; A simplified wiring method for LED drivers with power levels below emergency requirements; In an emergency, the dimming switching circuit cuts off the control of the lamps by the external dimmer, high-voltage sensor, or low-voltage sensor to prevent the sensors from shutting off the emergency lighting output during emergency power supply.

[0011] Furthermore, the constant power output mode is compatible with at least one of the following lamp wiring methods: Wiring method for non-isolated LED driver luminaires or DOB luminaires; Wiring method for non-isolated Type A, Type B or Type AB LED tubes; The wiring method is to connect the input terminal of the LED driver in parallel and the output terminal to the LED light board. The emergency output terminal directly supplies power to non-isolated LED driver lamps, DOB lamps, LED tubes or LED panels in constant power output mode, and limits the output power according to the set emergency power.

[0012] By adopting the above solution, the beneficial effects of the present invention are: 1) This invention, through the cooperation of a constant voltage and constant power selection circuit and an MCU control system, enables the same emergency power lighting system to select either constant voltage output mode or constant power output mode according to the usage scenario. This makes it compatible with various loads such as LED driver lamps with 0-10V dimming, lamps with wall switches, high voltage sensor lamps, low voltage sensor lamps, SCR dimming lamps, non-isolated LED driver lamps, DOB lamps, LED tubes, and LED light boards, thus improving the versatility of emergency power supplies. 2) In constant power output mode, this invention enables the output voltage and output current at the emergency output terminal to automatically adjust in opposite directions to maintain a basically constant output power. When the lamp voltage is high, the system automatically reduces the output current; when the lamp voltage is low, the system automatically increases the output current. This allows it to adapt to lamps with different starting and operating voltages, avoiding over-power or under-power issues that could affect emergency lighting time and reliability. 3) In constant voltage output mode, the present invention cuts off the control of external dimmers or sensors on the lamps in emergency situations through a dimming switching circuit, so that the lamp power is taken over by the emergency dimming signal output by the MCU control system, thereby avoiding the sensor from being accidentally triggered and turning off the emergency lighting output in emergency situations, and improving the safety of emergency lighting. 4) This invention is equipped with a 12V power supply circuit, which can provide working power to external devices such as low-voltage sensors in constant voltage output mode, and can not participate in emergency output control in constant power output mode, so that the system can be flexibly adapted to different lamp wiring methods. 5) This invention is equipped with a wireless communication system, which can realize remote inspection, remote simulated power outage test, status monitoring, fault alarm, parameter setting and test record uploading, thereby upgrading the traditional on-site manual inspection to remote centralized management and control, reducing maintenance costs and improving the manageability and reliability of the emergency lighting system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the principle of the present invention. Figure 2 This is a circuit diagram of the AC-DC input circuit of the present invention; Figure 3 This is a circuit diagram of the charging circuit of the present invention; Figure 4 The circuit diagram of the DC-DC circuit of the present invention is shown below. Figure 5 This is a circuit diagram of the MCU control system of the present invention; Figure 6 This is a circuit diagram of the 12V power supply circuit of the present invention; Figure 7 This is a circuit diagram of the boost control circuit of the present invention; Figure 8 The circuit diagram is for the constant voltage and constant power selection circuit of the present invention. Figure 9 This is a circuit diagram of the dimming switching circuit of the present invention; Figure 10 This is a circuit diagram of the wireless communication system of the present invention; Figure 11 This is a wiring diagram of the LED driver with 0-10V dimming and the 0-10V external dimmer of the present invention; Figure 12 This is a wiring diagram of the LED driver with 0-10V dimming and the wall switch of the present invention; Figure 13 This is a wiring diagram of the LED driver and high-voltage sensor with 0-10V dimming according to the present invention; Figure 14 This is a wiring diagram of the LED driver, wall switch, and low-voltage sensor with 0-10V dimming according to the present invention; Figure 15 This is a wiring diagram of the LED driver and SCR dimmer with SCR dimming according to the present invention; Figure 16 This is a simplified wiring diagram for LED drivers with power levels below emergency power, as shown in the present invention. Figure 17 This is a wiring diagram of the non-isolated LED driver lamp or DOB lamp of the present invention; Figure 18 This is a wiring diagram of the present invention for non-isolated Type A, Type B, or Type AB LED tubes; Figure 19 This is a wiring diagram of the present invention, in which the LED driver input terminal is connected in parallel and the output terminal is connected to the LED lamp board. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0015] Reference Figures 1 to 19 As shown, the present invention provides an emergency power lighting system based on intelligent control. In one embodiment, it includes an AC-DC input circuit, a charging circuit, a battery, a DC-DC circuit, an MCU control system, a wireless communication system, a constant voltage and constant power selection circuit, a boost control circuit, a 12V power supply circuit, a dimming switching circuit, and an emergency output terminal.

[0016] The AC-DC input circuit is used to connect to the mains power and convert the AC mains power into low-voltage DC power. The output of the AC-DC input circuit is connected to the charging circuit, which charges the battery. The charging circuit is connected to the DC-DC circuit, which converts the DC-DC power into the operating voltage used by the MCU control system, the wireless communication system, and the 12V power supply circuit.

[0017] The MCU control system, as the core of the system, is used to detect the presence of mains power and determine whether the system should enter emergency mode based on the detection results. When the mains power is normal, the MCU control system controls the charging circuit to charge the battery, and the lights can work normally according to the control signals of external dimmers, wall switches or sensors. When the mains power is disconnected or abnormal, the MCU control system enters emergency mode and reads the selection status of the constant voltage and constant power selection circuit to determine whether the boost control circuit adopts constant voltage output mode or constant power output mode.

[0018] In constant voltage output mode, the boost control circuit outputs a constant emergency voltage, and the 12V power supply circuit and dimming switching circuit participate in the operation; for example... Figures 11-16 As shown, the system can be adapted to various wiring methods, including LED drivers with 0-10V dimming and external dimmers, LED drivers with 0-10V dimming and wall switches, LED drivers with 0-10V dimming and high-voltage sensors, LED drivers with 0-10V dimming and low-voltage sensors, LED drivers with SCR dimming and SCR dimmers, and LED drivers with power levels below emergency power. In this mode, when the mains power is normal, the external dimmer or sensor can control the lamp power; when the mains power is abnormal and an emergency state is entered, the dimming switching circuit cuts off the control of the external dimmer or sensor, allowing the lamp power to be taken over by the MCU control system and dimming control signal inside the emergency power supply. This avoids the risk of the emergency lighting being shut off due to the sensor continuing to operate during emergency power supply.

[0019] In constant power output mode, the boost control circuit directly outputs constant power emergency power to the load through the emergency output terminal; the 12V power supply circuit and the dimming switching circuit do not participate in emergency output control. For example... Figures 17-19As shown, this mode can be adapted to at least one of the following lighting fixture wiring methods: Wiring method for non-isolated LED driver luminaires or DOB luminaires; Wiring method for non-isolated Type A, Type B or Type AB LED tubes; The wiring method involves connecting the input terminal of the LED driver in parallel and the output terminal to the LED light board.

[0020] In constant power output mode, the MCU control system adjusts the boost control signal based on output voltage and current feedback, causing the output voltage and current to adjust in opposite directions, thereby maintaining a basically constant output power. Specifically, when the operating voltage of the load lamp increases, the MCU control system reduces the output current; when the operating voltage of the load lamp decreases, the MCU control system increases the output current, keeping the output power within the preset emergency power range. The output voltage range of the emergency output terminal can be from 20V to 400V to be compatible with low-voltage lamp boards, high-voltage lamp boards, and various non-isolated lamps.

[0021] In some implementations, refer to Figure 2 As shown, the AC-DC input circuit includes an AC input terminal, a rectifier bridge BD1, an inductor LF1, capacitors CX1 and CX2, a transformer T1, a main control chip U3, switching transistors Q5 and Q6, and related resistors and capacitors. The AC input terminal is connected to the rectifier and filter unit via a fuse F1. The rectifier bridge BD1 rectifies the AC mains power into a DC bus voltage Vbus. Inductors LF1 and capacitors CX1 and CX2 are used to filter out input-side interference. The bus voltage Vbus forms a voltage divider detection branch through resistors R6, R12, R13, R11, and R14. This voltage divider detection branch provides a bus voltage detection signal to the main control chip U3. The main control chip U3 controls the switching transistor Q6 to operate according to the detection signal. The switching transistor Q6 is connected to the primary winding of the transformer T1, and energy conversion is achieved through high-frequency switching. The secondary winding of transformer T1 is rectified and filtered by diode D1, capacitor EC1, capacitor EC7 and diode D5 to form the output voltage terminal VC, which provides DC power to the subsequent charging circuit and DC-DC circuit.

[0022] like Figure 3As shown, the charging circuit includes switching transistors Q1 and Q2, transistors Q3 and Q4, resistors R1, R4, R5, R13, R14, R15, R18, and R19, capacitor C3, and battery terminal BAT1. The voltage VC output from the AC-DC input circuit is connected to the positive battery terminal BAT+ via switching transistors Q1, R1, and Q2. The positive battery terminal BAT+ is grounded through capacitor C3 and connected to battery terminal BAT1. The base of transistor Q3 receives charging control signals through resistor R14. The transistor Q3 receives the detection or control signal OCHIR, with its emitter grounded and collector connected to the control terminal of the switching transistor Q1 via resistor R13. When the MCU control system outputs the corresponding charging control signal, transistor Q3 changes the conduction state of the switching transistor Q1, thereby controlling the conduction or disconnection of the charging path. The base of transistor Q4 receives the detection or control signal OEM via resistor R15, its emitter grounded, and its collector connected to the positive terminal BAT+ of the battery via resistor R18. This is used to cooperate with the MCU control system to realize charging detection, battery status detection, or charging protection control.

[0023] like Figure 4 As shown, the DC-DC circuit includes a voltage regulator chip U7, capacitors C36, EC6, C31, C32, and C55, and resistors R57 and R62. The input terminal of the voltage regulator chip U7 is connected to the power supply terminal VCC. Capacitors C36 and EC6 are connected in parallel between the input terminal and ground to filter the input voltage. The output terminal of the voltage regulator chip U7 forms the operating voltage VC. Capacitors C32 and C55 are connected between the output terminal and ground to stabilize the output voltage. Resistors R57 and R62 form a feedback voltage divider branch and are connected to the feedback terminal of the voltage regulator chip U7, enabling the voltage regulator chip U7 to output a stable low-voltage DC power to power the MCU control system and related low-voltage control circuits.

[0024] like Figure 5As shown, the MCU control system includes a microcontroller U1; the power supply terminal VDD of microcontroller U1 is connected to the operating voltage VCC, and the ground terminal VSS is grounded; the AC detection terminal AC_AD of microcontroller U1 is used to detect the mains input status, the voltage detection terminal V-LED is used to detect the LED output voltage at the emergency output terminal, the battery voltage detection terminal Vbat is used to detect the battery voltage, the input detection terminal IBAT is used to detect the battery or output current status, the enable terminal EN is used to enable the control system, the mains detection terminal AC-L is used to detect the AC live wire status, and the output detection terminal OUT RED is used for output status detection or indication control; the dimming control terminal DIM of microcontroller U1... REL is connected to the dimming switching circuit; the wireless receiver RX and wireless transmitter TX are connected to the wireless communication system; the charging control terminal OCHIR is connected to the charging circuit; the red indicator terminal R-LED and the green indicator terminal GLED are used to connect to the status indicator; the switch terminal SW is used to receive local test switch signals; the boost modulation terminal PWM is connected to the boost control circuit; the mode recognition terminal MODE is connected to the constant voltage and constant power selection circuit; the 12V control terminal 12V-OUT is connected to the 12V power supply circuit; and the dimming modulation terminal PWM-DIM is connected to the dimming switching circuit.

[0025] like Figure 6 As shown, the 12V power supply circuit includes a voltage regulator chip Q17, a switching transistor Q15, a transistor Q16, resistors R116, R113, R118, and R114, capacitors C56 and C57. The input terminal IN of the voltage regulator chip Q17 is connected to the input voltage V3, and the output terminal OUT is connected to the input side of the switching transistor Q15 via resistor R116. The base of the transistor Q16 receives the 12V control signal 12V-OUT from the microcontroller U1 via resistor R118. The emitter of the transistor Q16 is grounded, and the base is also grounded via resistor R114. The collector is connected to the control terminal of the switching transistor Q15 via resistor R113. When the microcontroller U1 outputs the 12V control signal, the transistor Q16 controls the switching transistor Q15 to turn on or off, thereby controlling whether the 12V power supply terminal outputs 12V power. The 12V power supply can be used to power external devices such as low-voltage sensors; in constant power mode, the MCU control system can shut down or disable the 12V power supply circuit so that it does not participate in emergency output control.

[0026] like Figure 7As shown, the boost control circuit includes a boost control chip U8, inductor L2, diodes D18 and D19, switching transistor Q10, output inductor L71, capacitors EC9, C33, EC4, C35, C34, and C42, and a feedback resistor network. The positive terminal BAT2 of the battery is filtered by capacitors EC9 and C33 and then connected to one end of inductor L2. The other end of inductor L2 is connected to diodes D19 and D18 respectively. The output sides of diodes D19 and D18 are filtered by capacitors EC4, C35, and C34 to form the boost bus. The boost control chip U8 receives the boost signal from the microcontroller U1. The voltage modulation signal PWM-BST is used to drive the switching transistor Q10 through the driver terminal via resistor R70. The source of the switching transistor Q10 is grounded through sampling resistors R81 and R82, and the drain is connected to inductor L2 and the rectifier diode branch. The boost bus is connected to the emergency output terminals LED+ and LED- through the output inductor EF1 to output emergency power to the lighting load. The feedback resistor network consists of resistors R58, R59, R63, R64, R65, R66, R68, R69, R73, R74, R75 and capacitor C42. It is used to sample the emergency output voltage and form a feedback signal for closed-loop control by the boost control chip U8 and the MCU control system.

[0027] In constant voltage output mode, the boost control circuit controls the output voltage of the emergency output terminals LED+ and LED- to maintain the set value based on the feedback voltage, thus meeting the emergency power supply needs of LED drivers with dimming capabilities and related external dimmers and sensors. In constant power output mode, the MCU control system adjusts the boost modulation signal PWM-BST based on output voltage and output current feedback, enabling the boost control circuit to output constant power. Because constant power control can automatically adjust the output voltage and output current according to load changes, the same emergency power supply can be compatible with various lighting fixtures with different starting and operating voltages.

[0028] like Figure 8As shown, the constant voltage and constant power selection circuit includes comparator U9, Zener diode U10, diode D23, switching transistors Q11, Q12, Q13, and Q14, selection switch SW1, and resistors R93, R94, R95, R96, R97, R98, R99, R100, R101, R102, R103, R104, R105, R106, R107, R108, R109, R110, and R111. The input terminal IN+ of comparator U9 receives the constant voltage selection signal CV through resistor R96, and the other input terminal IN- receives the constant voltage selection signal CV through resistor R96. The network formed by resistors R100, R104, R105, and capacitor C52 connects to the output terminal OUT, which is connected to the filter node consisting of resistor R103 and capacitor C53 via resistor R101. One end of the selector switch SW1 is grounded, and the other end is connected to the switching detection node via resistor R99. This switching detection node controls switches Q13 and Q14 through resistors R106 and R107. Switches Q13, Q14, and Q12 form a mode switching network. The output terminal of switch Q12 is connected to the feedback signal FB1, which is further connected to the feedback terminal of the boost control circuit. Thus, the state of selector switch SW1 can change the feedback path or the state of the detection node, enabling the MCU control system to identify whether the current selection is constant voltage output mode or constant power output mode, and adjust the control strategy of the boost control circuit accordingly.

[0029] like Figure 9 As shown, the dimming switching circuit includes comparator U5, switching transistor Q7, transistor Q8, relay K1, diode D14, resistors R32, R35, R42, R43, R44, R50, R53, R54, and capacitors C21, C23, C26, and C27. The input terminal IN+ of comparator U5 is connected to the dimming sampling node via resistor R35 and capacitor C21. The input terminal IN- receives the dimming modulation signal PWM-DIM from the microcontroller U1. The output terminal OUT is connected to the gate of switching transistor Q7 via resistor R43. The source of switching transistor Q7 is grounded and grounded through resistor R44. Comparator U5 and switching transistor Q7 work together to form an emergency dimming control signal based on the dimming modulation signal output by the MCU control system.

[0030] The base of transistor Q8 receives the dimming relay control signal DIM REL from the microcontroller U1 via resistor R50. The base is also grounded via resistor R54, the emitter is grounded, and the collector is connected to one end of the coil of relay K1. The other end of the relay K1 coil is connected to the operating voltage VCC. Diode D14 is connected in reverse parallel across the relay K1 coil to absorb the back electromotive force generated when the coil is de-energized. The contacts of relay K1 are located between the external dimming input DIM IN and the dimming output DIM OUT. When the mains power is normal, relay K1 allows dimming signals from external dimmers, wall switches, or sensors to be transmitted to the luminaire. In an emergency, relay K1 disconnects or switches the connection between the external dimming input DIM IN and the dimming output DIM OUT, preventing the external dimmer or sensor from controlling the luminaire; dimming is then controlled by the internal dimming signal of the emergency power supply. This structure prevents the emergency lighting output from being shut off due to sensor activation in an emergency.

[0031] like Figure 10 As shown, the wireless communication system includes a communication module M1 and pull-up resistors R119 and R120. The power supply terminal of the communication module M1 is connected to the communication power supply voltage VCC2, and the ground terminal is grounded. The receiver RX and transmitter TX are connected to the transmitter and receiver terminals of the microcontroller U1, respectively. The pull-up resistors R119 and R120 are connected between the communication power supply voltage VCC2 and the receiver RX and transmitter TX to ensure stable communication signals. The communication module M1 can be any of the following: Bluetooth module, Zigbee module, WiFi module, LoRa module, or NB-IoT module. It can also be compatible with DALI, KNX, or proprietary communication protocols. Through the wireless communication system, users can send self-test commands, simulated power-off commands, parameter setting commands, or status query commands from a remote terminal or central control platform. The MCU control system can then feed back information such as battery status, light source status, conversion status, fault status, and test records to the remote terminal or central control platform.

[0032] The system operation process in this embodiment is as follows: When the mains power is normal, the AC-DC input circuit converts the mains power into low-voltage DC power, the charging circuit charges the battery, and the DC-DC circuit powers the MCU control system, wireless communication system, and related control circuits. At this time, the lamps can operate normally according to signals from external dimmers, wall switches, or sensors. The MCU control system monitors battery voltage, mains power status, output status, and communication commands in real time.

[0033] When the MCU control system detects a mains power anomaly or receives a remote simulated power outage test command, the system enters emergency mode. The MCU control system reads the status of the constant voltage and constant power selection circuit. If the constant voltage output mode is selected, the MCU control system controls the boost control circuit to output a constant voltage emergency voltage, while simultaneously enabling the 12V power supply circuit and the dimming switching circuit. The dimming switching circuit cuts off the control of the lamps by external dimmers or sensors, so that the emergency output power is controlled by the emergency dimming signal output by the MCU control system. At this time, the system can adapt to lamps with 0-10V dimming, wall switches, high-voltage sensors, low-voltage sensors, SCR dimmers, and extremely simple wiring methods.

[0034] If the constant power output mode is selected, the MCU control system controls the boost control circuit to enter constant power control mode. The 12V power supply circuit and dimming switching circuit do not participate in emergency output control. The emergency output terminal directly outputs constant power to non-isolated LED driver lamps, DOB lamps, LED tubes, or LED panels. The MCU control system adjusts the boost control signal based on the output voltage and output current feedback to maintain the output power within the set emergency power range. This avoids the problem of incompatibility of emergency power supplies due to different starting voltages or operating voltages of different lamps.

[0035] In this embodiment, the integrated design of constant voltage output mode and constant power output mode enables the same emergency power supply lighting system to be compatible with various types of lamps; the dimming switching circuit cuts off external dimmers or sensor control in emergency situations to prevent sensor malfunctions from affecting emergency lighting; the constant power control achieves wide voltage adaptation within the range of 20V to 400V, improving the compatibility of non-isolated lamps, DOB lamps, and LED tubes; and the wireless communication system enables remote inspection, remote testing, status monitoring, and fault alarms, reducing manual inspection costs and improving the safety, reliability, and intelligence level of the emergency lighting system.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An emergency power supply lighting system based on intelligent control, characterized in that, It includes AC-DC input circuit, charging circuit, battery, DC-DC circuit, MCU control system, wireless communication system, constant voltage and constant power selection circuit, boost control circuit, 12V power supply circuit, dimming switching circuit and emergency output terminal. The output terminal of the AC-DC input circuit is connected to the charging circuit; the charging circuit is connected to the DC-DC circuit and the battery respectively to charge the battery; the DC-DC circuit is connected to the MCU control system, the wireless communication system and the 12V power supply circuit respectively, and the DC-DC circuit is used to convert the DC power output by the AC-DC input circuit into the working voltage for the MCU control system, the wireless communication system and the 12V power supply circuit. The MCU control system is electrically connected to the constant voltage and constant power selection circuit, the boost control circuit, the dimming switching circuit, the emergency output terminal, and the wireless communication system. The MCU control system is used to detect whether there is mains power and to control the system to enter emergency state when the mains power is abnormal. At the same time, the MCU control system is also used to control the emergency output terminal to enter constant voltage output mode or constant power output mode according to the selection state of the constant voltage and constant power selection circuit.

2. The emergency power supply lighting system based on intelligent control according to claim 1, characterized in that, In constant voltage output mode, the boost control circuit outputs a constant emergency voltage through the emergency output terminal. The 12V power supply circuit and the dimming switching circuit participate in the operation. The dimming switching circuit is used to allow external dimmers or sensors to control the lamp power when the mains power is normal, and to cut off the control of external dimmers or sensors on the lamp in emergency state, so that the lamp power is controlled by the emergency dimming signal output by the MCU control system.

3. The emergency power supply lighting system based on intelligent control according to claim 2, characterized in that, In constant power output mode, the boost control circuit outputs a constant power emergency voltage through the emergency output terminal, and the 12V power supply circuit and the dimming switching circuit do not participate in the emergency output control. The emergency output terminal directly performs constant power control on the LED light board, non-isolated LED driver lamp, DOB lamp or LED tube connected to the output terminal.

4. The emergency power supply lighting system based on intelligent control according to claim 1, characterized in that, The constant voltage output mode is compatible with at least one of the following lighting fixture wiring methods: Wiring method for LED driver with 0-10V dimming and 0-10V external dimmer; Wiring method for LED drivers with 0-10V dimming and wall switches; Wiring method for LED driver with 0-10V dimming and high voltage sensor; Wiring methods for LED drivers, wall switches, and low-voltage sensors with 0-10V dimming; Wiring method for LED drivers and SCR dimmers with SCR dimming; A simplified wiring method for LED drivers with power levels below emergency requirements; In an emergency, the dimming switching circuit cuts off the control of the lamps by the external dimmer, high-voltage sensor, or low-voltage sensor to prevent the sensors from shutting off the emergency lighting output during emergency power supply.

5. The emergency power supply lighting system based on intelligent control according to claim 1, characterized in that, The constant power output mode is compatible with at least one of the following lighting fixture wiring methods: Wiring method for non-isolated LED driver luminaires or DOB luminaires; Wiring method for non-isolated Type A, Type B or Type AB LED tubes; The wiring method is to connect the input terminal of the LED driver in parallel and the output terminal to the LED light board. The emergency output terminal directly supplies power to non-isolated LED driver lamps, DOB lamps, LED tubes or LED panels in constant power output mode, and limits the output power according to the set emergency power.

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