Fire-fighting lamp and control circuit thereof

Abstract

The utility model belongs to the technical field of fire-fighting equipment, and discloses a fire-fighting lamp and a control circuit thereof, the control circuit of the fire-fighting lamp comprises a demodulation control module, a lamp bead driving module, a power conversion module and a battery charging module; the demodulation control module is connected with an external power line, receives and demodulates carrier waves transmitted on the power line, controls the lamp bead driving module according to a control signal formed after demodulation, and drives external illuminating lamp beads through the lamp bead driving module; the battery charging module is further connected with the power line and charges the energy storage battery through the power line, so that the fire-fighting lamp can provide electric energy for the lamp bead driving module through the energy storage battery when the power line is powered off. The utility model aims to reduce the electric energy loss when the control instruction of the fire-fighting lamp is transmitted, improve the control accuracy of the fire-fighting lamp, and improve the reliability of the fire-fighting lamp during power failure.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting lamp and a control circuit thereof. Background Art

[0002] Fire lights, a common firefighting device, are typically installed in various emergency passageways within a building. When a master switch is required to control each fire light throughout the building, wiring must be laid between the master switch and each fire light for wired control. Currently, the most common method for controlling fire lights within a building is still through direct current (DC) wired control. However, as the DC line length increases, power loss becomes increasingly severe, resulting in insensitive control of the fire lights or even failure. Utility Model Content

[0003] The purpose of the present utility model is to provide a fire-fighting lamp and a control circuit thereof, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve its technical problems is:

[0005] Provided is a fire lamp control circuit, comprising: a demodulation control module, a lamp bead driving module, a power conversion module and a battery charging module;

[0006] The output end of the demodulation control module is connected to the input end of the lamp bead driving module. The demodulation control module is used to connect to the external power line, demodulate the carrier in the power line to form a control signal, and control the lamp bead driving module according to the control signal;

[0007] The output end of the power conversion module is respectively connected to the input end of the demodulation control module, the input end of the lamp bead driving module and the input end of the battery charging module. The power conversion module is used to connect to the power line and convert the alternating current of the power line into direct current. The direct current provides power to the demodulation control module, the lamp bead driving module and the battery charging module.

[0008] The output end of the battery charging module is connected to the input end of the lamp bead driving module, and the battery charging module is used to charge the external energy storage battery with the direct current, and the energy storage battery is used to provide power to the lamp bead driving module when the power line is disconnected;

[0009] The lamp bead driving module is used to drive external lighting lamp beads.

[0010] Optionally, the power conversion module includes a rectifier circuit and a voltage stabilizing circuit;

[0011] The output terminals of the rectification circuit are respectively connected to the input terminal of the voltage stabilization circuit and the input terminal of the battery charging module. The rectification circuit is used to be connected to the power line to convert the alternating current of the power line into direct current;

[0012] The output terminals of the voltage stabilization circuit are respectively connected to the input terminal of the lamp bead driving module and the input terminal of the demodulation control module. The voltage stabilization circuit is used to convert the direct current into regulated direct current.

[0013] Optionally, the rectification circuit includes a fuse, a rectification chip, a power management chip, an optocoupler, a voltage stabilizing triode, a Schottky diode, a first diode, a first inductor, a second inductor, a third inductor, an inductor, a first polarized capacitor, a second polarized capacitor, a third polarized capacitor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor;

[0014] The first pin and the second pin of the rectifier chip are both connected to the power line through the fuse. The third pin of the rectifier chip is connected to the first inductor, and the fourth pin of the rectifier chip is connected to the second inductor. The other end of the first inductor is respectively connected to the anode of the first polarized capacitor, the first capacitor, the second capacitor, and the first pin of the inductor. The cathode of the first polarized capacitor is connected to the other end of the second inductor. The first resistor is connected in parallel with the second capacitor. The other end of the second capacitor is connected to the negative electrode of the first diode. The positive electrode of the first diode is respectively connected to the second pin of the inductor, the fifth pin of the power management chip, the sixth pin of the power management chip, the seventh pin of the power management chip, and the eighth pin of the power management chip. The fourth pin of the inductor is respectively connected to the second resistor and the anode of the Schottky diode. The other end of the second resistor is connected to the third capacitor. The other end of the third capacitor is respectively connected to the cathode of the Schottky diode, the anode of the second polarized capacitor, the third resistor, the fourth resistor, and the third inductor. The third pin of the inductor is connected to the cathode of the second polarized capacitor. The other end of the third inductor is connected to the anode of the third polarized capacitor. The other end of the third resistor is respectively connected to the fifth resistor and the first pin of the optocoupler. The other end of the fourth resistor is respectively connected to the fourth capacitor, the sixth resistor, and the first pin of the voltage stabilizing triode. The other end of the fourth capacitor is respectively connected to the second pin of the voltage stabilizing triode, the other end of the fifth resistor, and the second pin of the optocoupler. The third pin of the voltage stabilizing triode is connected to the other end of the sixth resistor. The third pin of the optocoupler is respectively connected to the third pin of the power management chip and the sixth capacitor. The fourth pin of the optocoupler is respectively connected to the fourth pin of the power management chip and the fifth capacitor. The first pin of the power management chip is respectively connected to the second pin of the power management chip, the other end of the fifth capacitor, and the other end of the sixth capacitor. The other end of the second inductor, the other end of the first capacitor, the cathode of the second polarized capacitor, the cathode of the third polarized capacitor, the sixth resistor, and the first pin of the power management chip are connected to the ground. The other end of the third inductor serves as the output end of the rectifier circuit.

[0015] Optionally, the voltage stabilizing circuit includes a first voltage stabilizing chip, a fourth polarized capacitor, a fifth polarized capacitor, a seventh capacitor, and an eighth capacitor;

[0016] The anode of the fourth polarized capacitor is connected to the output terminal of the voltage stabilizing circuit. The anode of the fourth polarized capacitor is also respectively connected to the seventh capacitor and the second pin of the first voltage stabilizing chip. The third pin of the first voltage stabilizing chip is respectively connected to the anode of the fifth polarized capacitor and the eighth capacitor. The cathode of the fourth polarized capacitor, the other end of the seventh capacitor, the first pin of the first voltage stabilizing chip, the cathode of the fifth polarized capacitor, and the other end of the eighth capacitor are connected to the ground. The third pin end of the first voltage stabilizing chip serves as the output terminal of the voltage stabilizing circuit.

[0017] Optionally, it further includes a power indicator circuit, and the power indicator circuit includes a seventh resistor and a light-emitting diode;

[0018] The seventh resistor is connected to the output terminal of the voltage stabilizing circuit. The other end of the seventh resistor is connected to the positive electrode of the light-emitting diode. The negative electrode of the light-emitting diode is connected to the ground.

[0019] Optionally, the battery charging module includes a second diode, a third diode, and an eighth resistor;

[0020] The positive electrode of the second diode is connected to the output terminal of the rectifying circuit. The negative electrode of the second diode is connected to the negative electrode of the third diode. The positive electrode of the third diode is connected to the energy storage battery. The eighth resistor is connected in parallel with the third diode. The negative electrode end of the second diode serves as the output terminal of the battery charging module.

[0021] Optionally, the demodulation control module includes a communication circuit and a control chip, and the communication circuit includes a ninth capacitor, a first bidirectional voltage stabilizing diode, a second bidirectional voltage stabilizing diode, and a common mode inductor;

[0022] The ninth capacitor is connected to the live wire of the power line. The other end of the ninth capacitor is respectively connected to the first bidirectional voltage stabilizing diode and the first pin of the common mode inductor. The other end of the first bidirectional voltage stabilizing diode is respectively connected to the neutral wire of the power line and the second pin of the common mode inductor. The third pin of the common mode inductor is respectively connected to the second bidirectional voltage stabilizing diode and the tenth pin of the control chip. The fourth pin of the common mode inductor is respectively connected to the other end of the second bidirectional voltage stabilizing diode and the eleventh pin of the control chip.

[0023] Optionally, it further includes a serial port, a ninth resistor, and a tenth resistor;

[0024] The 8th pin of the control chip is connected to the tenth resistor, the 16th pin of the control chip is connected to the ninth resistor, the 21st pin of the control chip is connected to the 3rd pin of the serial port, the 22nd pin of the control chip is connected to the 2nd pin of the serial port, the 13th pin of the control chip and the 4th pin of the serial port are respectively connected to the output end of the voltage stabilizing circuit, the other end of the ninth resistor is connected to the other end of the tenth resistor, and the other end of the ninth resistor, the 1st pin of the serial port and the 12th pin of the control chip are connected to the ground.

[0025] Optionally, the lamp bead driving module includes a second voltage stabilizing chip, an LED driving chip, a first triode, a second triode, a fourth diode, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, and a fourth inductor;

[0026] The 2nd pin of the second voltage stabilizing chip is connected to the output end of the battery charging module, the 3rd pin of the second voltage stabilizing chip is respectively connected to the emitter of the first triode and the eleventh resistor, the base of the first triode is respectively connected to the other end of the eleventh resistor and the collector of the second triode, the twelfth resistor is connected to the output end of the voltage stabilizing circuit, the other end of the twelfth resistor is respectively connected to the tenth capacitor, the thirteenth resistor and the base of the second triode, the collector of the first triode is respectively connected to the other end of the thirteenth resistor and the fourteenth resistor, the other end of the fourteenth resistor is respectively connected to the fifteenth resistor and the 3rd pin of the LED driving chip, the other end of the fifteenth resistor is connected to the 8th pin of the control chip, the 1st pin of the LED driving chip is respectively connected to the positive electrode of the fourth diode and the fourth inductor, the 5th pin of the LED driving chip is respectively connected to the negative electrode of the fourth diode, the output end of the battery charging module, the eleventh capacitor and the sixteenth resistor, the 4th pin of the LED driving chip is respectively connected to the other end of the sixteenth resistor, the positive electrode of the lighting lamp bead and the twelfth capacitor, the other end of the twelfth capacitor is respectively connected to the negative electrode of the lighting lamp bead, the other end of the fourth inductor and the seventeenth resistor, the other end of the seventeenth resistor is respectively connected to the 20th pin of the control chip and the eighteenth resistor, and the 1st pin of the second voltage stabilizing chip, the emitter of the second triode, the 2nd pin of the LED driving chip, the other end of the tenth capacitor, the other end of the eleventh capacitor and the other end of the eighteenth resistor are connected to the ground.

[0027] In addition, a fire-fighting lamp is provided, including the fire-fighting lamp control circuit described in any one of the above.

[0028] The beneficial effects of the present utility model are as follows: The present utility model is connected to an external power line through a demodulation control module, receives and demodulates the carrier wave transmitted on the power line, and then controls the lamp bead driving module according to the control signal formed after demodulation. The lamp bead driving module drives the external lighting lamp beads, realizing the transmission of control instructions for the lighting lamp beads through the alternating current on the power line, avoiding the power loss during direct current transmission, and improving the accuracy of controlling all fire-fighting lamps in a building through a main switch. Moreover, the fire-fighting lamp is also equipped with a battery charging module, which is also connected to the power line. The energy storage battery is charged through the power line, and the fire-fighting lamp can supply electrical energy to the lamp bead driving module through the energy storage battery when the power line is powered off, improving the reliability of the fire-fighting lamp. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present utility model, rather than all embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0030] Figure 1 It is a frame schematic diagram of an embodiment of a control circuit for a fire-fighting lamp of the present utility model;

[0031] Figure 2 It is a circuit schematic diagram of a rectification circuit of a control circuit for a fire-fighting lamp of the present utility model;

[0032] Figure 3 It is a circuit schematic diagram of a voltage stabilization circuit of a control circuit for a fire-fighting lamp of the present utility model;

[0033] Figure 4 It is a circuit schematic diagram of a power indicator circuit of a control circuit for a fire-fighting lamp of the present utility model;

[0034] Figure 5 It is a circuit schematic diagram of a power charging module of a control circuit for a fire-fighting lamp of the present utility model;

[0035] Figure 6 It is a circuit schematic diagram of a demodulation control module of a control circuit for a fire-fighting lamp of the present utility model;

[0036] Figure 7 It is a circuit schematic diagram of a lamp bead driving module of a control circuit for a fire-fighting lamp of the present utility model. Detailed Embodiments

[0037] In order to make the objectives, technical solutions and advantages of this application more clear and understandable, the following further elaborates on this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0038] It should be noted that although functional module division is performed in the system schematic diagram and the logical sequence is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from the module division in the system or the sequence in the flowchart. Terms such as "first" and "second" in the description, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0039] The present utility model provides a control circuit for a fire-fighting lamp, referring to Figure 1 , Figure 1 which is a frame schematic diagram of the control circuit for the fire-fighting lamp in this embodiment, including: a demodulation control module 100, a lamp bead driving module 400, a power conversion module 200, and a battery charging module 300.

[0040] The output end of the demodulation control module 100 is connected to the input end of the lamp bead driving module 400. The demodulation control module 100 is used to connect to an external power line, demodulate the carrier wave in the power line to form a control signal, and control the lamp bead driving module 400 according to the control signal.

[0041] The output end of the power conversion module 200 is respectively connected to the input end of the demodulation control module 100, the input end of the lamp bead driving module 400, and the input end of the battery charging module 300. The power conversion module 200 is used to connect to the power line and convert the alternating current of the power line into direct current, and the direct current provides electrical energy for the demodulation control module 100, the lamp bead driving module 400, and the battery charging module 300.

[0042] The output end of the battery charging module 300 is connected to the input end of the lamp bead driving module 400. The battery charging module 300 is used to charge an external energy storage battery BAT with direct current, and the energy storage battery BAT is used to provide electrical energy for the lamp bead driving module 400 when the power line is powered off.

[0043] The lamp bead driving module 400 is used to drive an external lighting lamp bead LED2.

[0044] It is connected to the external power line through the demodulation control module 100, receives and demodulates the carrier transmitted on the power line, and then controls the lamp bead driving module 400 according to the control signal formed after demodulation. The lamp bead driving module 400 drives the external lighting lamp beads LED2, realizing the transmission of control instructions for the lighting lamp beads LED2 through the alternating current on the power line, avoiding the power loss during the transmission of direct current, and improving the accuracy of controlling all fire-fighting lamps in the building through the main switch. Moreover, the battery charging module 300 is also connected to the power line, charges the energy storage battery BAT through the power line, and enables the fire-fighting lamps to provide electrical energy for the lamp bead driving module 400 when the power line is powered off, improving the reliability of the fire-fighting lamps.

[0045] Further, the power conversion module 200 includes a rectification circuit and a voltage stabilization circuit.

[0046] The output end of the rectification circuit is respectively connected to the input end of the voltage stabilization circuit and the input end of the battery charging module 300. The rectification circuit is used to be connected to the power line and convert the alternating current of the power line into direct current.

[0047] The output end of the voltage stabilization circuit is respectively connected to the input end of the lamp bead driving module 400 and the input end of the demodulation control module 100. The voltage stabilization circuit is used to convert the direct current into regulated direct current.

[0048] Specifically, the rectification circuit converts the commercial power into 12V direct current, provides electrical energy for the battery charging module 300 through the 12V direct current, and also transmits the 12V direct current to the voltage stabilization circuit for further processing. The voltage stabilization circuit then converts the received 12V direct current into 3.3V direct current, and provides electrical energy for the lamp bead driving module 400 and the demodulation control module 100 respectively through the 3.3V direct current.

[0049] It should be noted that in the attached drawings, the 12V direct current is represented by Vcc1, and the 3.3V direct current is represented by Vcc2.

[0050] Further, refer to Figure 2 , Figure 2 is the circuit schematic diagram of the rectification circuit of the fire-fighting lamp control circuit. The rectification circuit includes a fuse F1, a rectification chip U1, a power management chip U2, an optocoupler U3, a voltage stabilization triode U4, a Schottky diode D2, a first diode D1, a first inductor L1, a second inductor L2, a third inductor L3, an inductor T1, a first polar capacitor C1, a second polar capacitor C5, a third polar capacitor C6, a first capacitor C2, a second capacitor C3, a third capacitor C4, a fourth capacitor C7, a fifth capacitor C8, a sixth capacitor C9, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6.

[0051] The first pin of the rectifier chip U1 and the second pin of the rectifier chip U1 are both connected to the power line through the fuse F1. The third pin of the rectifier chip U1 is connected to the first inductor L1, and the fourth pin of the rectifier chip U1 is connected to the second inductor L2. The other end of the first inductor L1 is respectively connected to the anode of the first polarized capacitor C1, the first capacitor C2, the second capacitor C3, and the first pin of the inductor T1. The cathode of the first polarized capacitor C1 is connected to the other end of the second inductor L2. The first resistor R1 is connected in parallel with the second capacitor C3. The other end of the second capacitor C3 is connected to the negative electrode of the first diode D1. The positive electrode of the first diode D1 is respectively connected to the second pin of the inductor T1, the fifth pin of the power management chip U2, the sixth pin of the power management chip U2, the seventh pin of the power management chip U2, and the eighth pin of the power management chip U2. The fourth pin of the inductor T1 is respectively connected to the second resistor R2 and the anode of the Schottky diode D2. The other end of the second resistor R2 is connected to the third capacitor C4. The other end of the third capacitor C4 is respectively connected to the cathode of the Schottky diode D2, the anode of the second polarized capacitor C5, the third resistor R3, the fourth resistor R4, and the third inductor L3. The third pin of the inductor T1 is connected to the cathode of the second polarized capacitor C5. The other end of the third inductor L3 is connected to the anode of the third polarized capacitor C6. The other end of the third resistor R3 is respectively connected to the fifth resistor R5 and the first pin of the optocoupler U3. The other end of the fourth resistor R4 is respectively connected to the fourth capacitor C7, the sixth resistor R6, and the first pin of the voltage stabilizing triode U4. The other end of the fourth capacitor C7 is respectively connected to the second pin of the voltage stabilizing triode U4, the other end of the fifth resistor R5, and the second pin of the optocoupler U3. The third pin of the voltage stabilizing triode U4 is connected to the other end of the sixth resistor R6. The third pin of the optocoupler U3 is respectively connected to the third pin of the power management chip U2 and the sixth capacitor C9. The fourth pin of the optocoupler U3 is respectively connected to the fourth pin of the power management chip U2 and the fifth capacitor C8. The first pin of the power management chip U2 is respectively connected to the second pin of the power management chip U2, the other end of the fifth capacitor C8, and the other end of the sixth capacitor C9. The other end of the second inductor L2, the other end of the first capacitor C2, the cathode of the second polarized capacitor C5, the cathode of the third polarized capacitor C6, the sixth resistor R6, and the first pin of the power management chip U2 are connected to the ground. The other end of the third inductor L3 serves as the output end of the rectifier circuit.

[0052] Further, referring to Figure 3 , Figure 3 is the circuit schematic diagram of the voltage stabilizing circuit for the fire lamp control circuit. The voltage stabilizing circuit includes the first voltage stabilizing chip U5, the fourth polarized capacitor C10, the fifth polarized capacitor C12, the seventh capacitor C11, and the eighth capacitor C13.

[0053] The anode of the fourth polarized capacitor C10 is connected to the output terminal of the voltage stabilizing circuit. The anode of the fourth polarized capacitor C10 is also respectively connected to the seventh capacitor C11 and the second pin of the first voltage stabilizing chip U5. The third pin of the first voltage stabilizing chip U5 is respectively connected to the anode of the fifth polarized capacitor C12 and the eighth capacitor C13. The cathode of the fourth polarized capacitor C10, the other end of the seventh capacitor C11, the first pin of the first voltage stabilizing chip U5, the cathode of the fifth polarized capacitor C12, and the other end of the eighth capacitor C13 are connected to the ground. The third pin end of the first voltage stabilizing chip U5 serves as the output terminal of the voltage stabilizing circuit.

[0054] Furthermore, referring to Figure 4 , Figure 4 which is the circuit schematic diagram of the power indication circuit of the fire lamp control circuit, it further includes a power indication circuit. The power indication circuit includes a seventh resistor R7 and a light emitting diode LED1.

[0055] The seventh resistor R7 is connected to the output terminal of the voltage stabilizing circuit. The other end of the seventh resistor R7 is connected to the positive electrode of the light emitting diode LED1. The negative electrode of the light emitting diode LED1 is connected to the ground.

[0056] The power indication circuit is used to indicate whether the power supply of the control circuit is normal. When the voltage stabilizing circuit normally outputs 3.3V DC power, the light emitting diode LED1 emits light to indicate that the power supply is normal.

[0057] Furthermore, referring to Figure 5 , Figure 5 which is the circuit schematic diagram of the battery charging module 300 of the fire lamp control circuit, the battery charging module 300 includes a second diode D3, a third diode D4, and an eighth resistor R8.

[0058] The positive electrode of the second diode D3 is connected to the output terminal of the rectifying circuit. The negative electrode of the second diode D3 is connected to the negative electrode of the third diode D4. The positive electrode of the third diode D4 is connected to the energy storage battery BAT. The eighth resistor R8 is connected in parallel with the third diode D4. The negative electrode end of the second diode D3 serves as the output terminal of the battery charging module 300.

[0059] Through the control of the second diode D3 and the third diode D4, when the rectifying circuit normally outputs 12V DC power to the power charging module, the 12V DC power is transmitted to the output terminal through the second diode D3 and simultaneously flows into the energy storage battery BAT for charging. The other end of the energy storage battery BAT is connected to the ground. When the power line is powered off and there is no 12V DC current flowing in, the energy storage battery BAT outputs current to the output terminal.

[0060] It should be noted that the output current of the battery charging module 300 is represented by Vcc3 in the drawings.

[0061] Furthermore, referring toFigure 6 , Figure 6 This is the circuit schematic diagram of the demodulation control module 100 of the fire-fighting lamp control circuit. The demodulation control module 100 includes a communication circuit and a control chip P1. The communication circuit includes a ninth capacitor C14, a first bidirectional voltage-regulating diode D5, a second bidirectional voltage-regulating diode D6, and a common-mode inductor T2.

[0062] The ninth capacitor C14 is connected to the live wire of the power line. The other end of the ninth capacitor C14 is respectively connected to the first bidirectional voltage-regulating diode D5 and the first pin of the common-mode inductor T2. The other end of the first bidirectional voltage-regulating diode D5 is respectively connected to the neutral wire of the power line and the second pin of the common-mode inductor T2. The third pin of the common-mode inductor T2 is respectively connected to the second bidirectional voltage-regulating diode D6 and the tenth pin of the control chip P1. The fourth pin of the common-mode inductor T2 is respectively connected to the other end of the second bidirectional voltage-regulating diode D6 and the eleventh pin of the control chip P1.

[0063] Specifically, the control chip P1 in this embodiment is a Huawei HiSilicon power line carrier chip, and 3.3V direct current provides electrical energy for this chip. As Figure 6 , the tenth pin of the control chip P1 is the RX_P pin, and the eleventh pin is the RX_N pin. After the communication circuit demodulates the carrier from the power line, it is input into this chip to form a control signal for controlling the lamp bead driving module 400.

[0064] Furthermore, referring to Figure 6 , the fire-fighting lamp control circuit further includes a serial port, a ninth resistor R9, and a tenth resistor R10.

[0065] The eighth pin of the control chip P1 is connected to the tenth resistor R10. The sixteenth pin of the control chip P1 is connected to the ninth resistor R9. The twenty-first pin of the control chip P1 is connected to the third pin of the serial port. The twenty-second pin of the control chip P1 is connected to the second pin of the serial port. The thirteenth pin of the control chip P1 and the fourth pin of the serial port are respectively connected to the output end of the voltage-regulating circuit. The other end of the ninth resistor R9 is connected to the other end of the tenth resistor R10. The other end of the ninth resistor R9, the first pin of the serial port, and the twelfth pin of the control chip P1 are connected to the ground.

[0066] Specifically, the serial port is used to communicate with other external circuits, which is not specifically limited in this embodiment, and 3.3V direct current provides electrical energy for the serial port. The eighth pin of the control chip P1 is the GPIO6 pin, the sixteenth pin is the GPIO8 pin, the twenty-first pin is the RX1 pin, and the twenty-second pin is the TX1 pin.

[0067] Furthermore, referring to Figure 7 , Figure 7The circuit schematic diagram of the lamp bead driving module 400 of the fire-fighting lamp control circuit. The lamp bead driving module 400 includes a second voltage stabilizing chip U6, an LED driving chip U7, a first triode Q1, a second triode Q2, a fourth diode D7, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a tenth capacitor C15, an eleventh capacitor C16, a twelfth capacitor C17, and a fourth inductor L4.

[0068] The second pin of the second voltage stabilizing chip U6 is connected to the output terminal of the battery charging module 300. The third pin of the second voltage stabilizing chip U6 is respectively connected to the emitter of the first triode Q1 and the eleventh resistor R11. The base of the first triode Q1 is respectively connected to the other end of the eleventh resistor R11 and the collector of the second triode Q2. The twelfth resistor R12 is connected to the output terminal of the voltage stabilizing circuit. The other end of the twelfth resistor R12 is respectively connected to the tenth capacitor C15, the thirteenth resistor R13, and the base of the second triode Q2. The collector of the first triode Q1 is respectively connected to the other end of the thirteenth resistor R13 and the fourteenth resistor R14. The other end of the fourteenth resistor R14 is respectively connected to the fifteenth resistor R15 and the third pin of the LED driving chip U7. The other end of the fifteenth resistor R15 is connected to the eighth pin of the control chip P1. The first pin of the LED driving chip U7 is respectively connected to the positive electrode of the fourth diode D7 and the fourth inductor L4. The fifth pin of the LED driving chip U7 is respectively connected to the negative electrode of the fourth diode D7, the output terminal of the battery charging module 300, the eleventh capacitor C16, and the sixteenth resistor R16. The fourth pin of the LED driving chip U7 is respectively connected to the other end of the sixteenth resistor R16, the positive electrode of the lighting lamp bead LED2, and the twelfth capacitor C17. The other end of the twelfth capacitor C17 is respectively connected to the negative electrode of the lighting lamp bead LED2, the other end of the fourth inductor L4, and the seventeenth resistor R17. The other end of the seventeenth resistor R17 is respectively connected to the twentieth pin of the control chip P1 and the eighteenth resistor R18. The first pin of the second voltage stabilizing chip U6, the emitter of the second triode Q2, the second pin of the LED driving chip U7, the other end of the tenth capacitor C15, the other end of the eleventh capacitor C16, and the other end of the eighteenth resistor R18 are connected to the ground.

[0069] Specifically, the first triode Q1 is a PNP triode, the second triode Q2 is an NPN triode. The lighting lamp bead LED2 includes a high-brightness LED lamp mainly for lighting or an indicator light mainly for prompting. The twentieth pin of the control chip P1 is the VIN5 pin.

[0070] In addition, the present invention also proposes a fire-fighting lamp, including the fire-fighting lamp control circuit as described in the above embodiment.

[0071] The above has specifically described the preferred embodiments of the present utility model. However, the utility model is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present utility model. These equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A control circuit for a fire-fighting lamp, characterized in that, Including: A demodulation control module, a lamp bead driving module, a power conversion module, and a battery charging module; The output end of the demodulation control module is connected to the input end of the lamp bead driving module. The demodulation control module is used to connect to an external power line, demodulate the carrier wave in the power line to form a control signal, and control the lamp bead driving module according to the control signal; The output end of the power conversion module is respectively connected to the input end of the demodulation control module, the input end of the lamp bead driving module, and the input end of the battery charging module. The power conversion module is used to connect to the power line and convert the alternating current of the power line into direct current, and the direct current provides electrical energy for the demodulation control module, the lamp bead driving module, and the battery charging module; The output end of the battery charging module is connected to the input end of the lamp bead driving module. The battery charging module is used to charge an external energy storage battery with the direct current, and the energy storage battery is used to provide electrical energy for the lamp bead driving module when the power line is powered off; The lamp bead driving module is used to drive an external lighting lamp bead.

2. The fire lamp control circuit according to claim 1, wherein The power conversion module includes a rectification circuit and a voltage stabilization circuit; The output end of the rectification circuit is respectively connected to the input end of the voltage stabilization circuit and the input end of the battery charging module. The rectification circuit is used to connect to the power line and convert the alternating current of the power line into direct current; The output end of the voltage stabilization circuit is respectively connected to the input end of the lamp bead driving module and the input end of the demodulation control module. The voltage stabilization circuit is used to convert the direct current into regulated direct current.

3. The fire lamp control circuit according to claim 2, characterized in that, The rectification circuit includes a fuse, a rectification chip, a power management chip, an optocoupler, a voltage stabilizing triode, a Schottky diode, a first diode, a first inductor, a second inductor, a third inductor, an inductor, a first polarized capacitor, a second polarized capacitor, a third polarized capacitor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor; The first pin and the second pin of the rectifier chip are both connected to the power line through the fuse. The third pin of the rectifier chip is connected to the first inductor, and the fourth pin of the rectifier chip is connected to the second inductor. The other end of the first inductor is respectively connected to the anode of the first polarized capacitor, the first capacitor, the second capacitor, and the first pin of the inductor. The cathode of the first polarized capacitor is connected to the other end of the second inductor. The first resistor is connected in parallel with the second capacitor. The other end of the second capacitor is connected to the negative electrode of the first diode. The positive electrode of the first diode is respectively connected to the second pin of the inductor, the fifth pin of the power management chip, the sixth pin of the power management chip, the seventh pin of the power management chip, and the eighth pin of the power management chip. The fourth pin of the inductor is respectively connected to the second resistor and the anode of the Schottky diode. The other end of the second resistor is connected to the third capacitor. The other end of the third capacitor is respectively connected to the cathode of the Schottky diode, the anode of the second polarized capacitor, the third resistor, the fourth resistor, and the third inductor. The third pin of the inductor is connected to the cathode of the second polarized capacitor. The other end of the third inductor is connected to the anode of the third polarized capacitor. The other end of the third resistor is respectively connected to the fifth resistor and the first pin of the optocoupler. The other end of the fourth resistor is respectively connected to the fourth capacitor, the sixth resistor, and the first pin of the voltage stabilizing triode. The other end of the fourth capacitor is respectively connected to the second pin of the voltage stabilizing triode, the other end of the fifth resistor, and the second pin of the optocoupler. The third pin of the voltage stabilizing triode is connected to the other end of the sixth resistor. The third pin of the optocoupler is respectively connected to the third pin of the power management chip and the sixth capacitor. The fourth pin of the optocoupler is respectively connected to the fourth pin of the power management chip and the fifth capacitor. The first pin of the power management chip is respectively connected to the second pin of the power management chip, the other end of the fifth capacitor, and the other end of the sixth capacitor. The other end of the second inductor, the other end of the first capacitor, the cathode of the second polarized capacitor, the cathode of the third polarized capacitor, the sixth resistor, and the first pin of the power management chip are connected to the ground. The other end of the third inductor serves as the output end of the rectifier circuit.

4. The fire lamp control circuit according to claim 2, wherein The voltage stabilizing circuit includes a first voltage stabilizing chip, a fourth polarized capacitor, a fifth polarized capacitor, a seventh capacitor, and an eighth capacitor; The anode of the fourth polarized capacitor is connected to the output terminal of the voltage stabilizing circuit. The anode of the fourth polarized capacitor is also respectively connected to the seventh capacitor and the second pin of the first voltage stabilizing chip. The third pin of the first voltage stabilizing chip is respectively connected to the anode of the fifth polarized capacitor and the eighth capacitor. The cathode of the fourth polarized capacitor, the other end of the seventh capacitor, the first pin of the first voltage stabilizing chip, the cathode of the fifth polarized capacitor, and the other end of the eighth capacitor are connected to the ground. The third pin end of the first voltage stabilizing chip serves as the output terminal of the voltage stabilizing circuit.

5. The fire lamp control circuit according to claim 2, characterized in that, It further includes a power indicator circuit, and the power indicator circuit includes a seventh resistor and a light-emitting diode; The seventh resistor is connected to the output terminal of the voltage stabilizing circuit. The other end of the seventh resistor is connected to the positive electrode of the light-emitting diode, and the negative electrode of the light-emitting diode is connected to the ground.

6. The fire lamp control circuit according to claim 2, characterized in that, The battery charging module includes a second diode, a third diode, and an eighth resistor; The positive electrode of the second diode is connected to the output terminal of the rectifying circuit. The negative electrode of the second diode is connected to the negative electrode of the third diode. The positive electrode of the third diode is connected to the energy storage battery. The eighth resistor is connected in parallel with the third diode. The negative electrode end of the second diode serves as the output terminal of the battery charging module.

7. The fire-fighting lamp control circuit according to claim 2, wherein The demodulation control module includes a communication circuit and a control chip. The communication circuit includes a ninth capacitor, a first bidirectional voltage stabilizing diode, a second bidirectional voltage stabilizing diode, and a common mode inductor; The ninth capacitor is connected to the live wire of the power line. The other end of the ninth capacitor is respectively connected to the first bidirectional voltage stabilizing diode and the first pin of the common mode inductor. The other end of the first bidirectional voltage stabilizing diode is respectively connected to the neutral wire of the power line and the second pin of the common mode inductor. The third pin of the common mode inductor is respectively connected to the second bidirectional voltage stabilizing diode and the tenth pin of the control chip. The fourth pin of the common mode inductor is respectively connected to the other end of the second bidirectional voltage stabilizing diode and the eleventh pin of the control chip.

8. The fire lamp control circuit according to claim 7, wherein, It further includes a serial port, a ninth resistor, and a tenth resistor; The eighth pin of the control chip is connected to the tenth resistor. The sixteenth pin of the control chip is connected to the ninth resistor. The twenty-first pin of the control chip is connected to the third pin of the serial port. The twenty-second pin of the control chip is connected to the second pin of the serial port. The thirteenth pin of the control chip and the fourth pin of the serial port are respectively connected to the output terminal of the voltage stabilizing circuit. The other end of the ninth resistor is connected to the other end of the tenth resistor. The other end of the ninth resistor, the first pin of the serial port, and the twelfth pin of the control chip are connected to the ground.

9. The fire lamp control circuit according to claim 7, wherein The lamp bead driving module includes a second voltage stabilizing chip, an LED driving chip, a first triode, a second triode, a fourth diode, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, and a fourth inductor; The second pin of the second voltage regulator chip is connected to the output terminal of the battery charging module. The third pin of the second voltage regulator chip is respectively connected to the emitter of the first triode and the eleventh resistor. The base of the first triode is respectively connected to the other end of the eleventh resistor and the collector of the second triode. The twelfth resistor is connected to the output terminal of the voltage stabilizing circuit. The other end of the twelfth resistor is respectively connected to the tenth capacitor, the thirteenth resistor and the base of the second triode. The collector of the first triode is respectively connected to the other end of the thirteenth resistor and the fourteenth resistor. The other end of the fourteenth resistor is respectively connected to the other end of the fifteenth resistor and the third pin of the LED driving chip. The other end of the fifteenth resistor is connected to the eighth pin of the control chip. The first pin of the LED driving chip is respectively connected to the positive electrode of the fourth diode and the fourth inductor. The fifth pin of the LED driving chip is respectively connected to the negative electrode of the fourth diode, the output terminal of the battery charging module, the eleventh capacitor and the sixteenth resistor. The fourth pin of the LED driving chip is respectively connected to the other end of the sixteenth resistor, the positive electrode of the lighting lamp bead and the twelfth capacitor. The other end of the twelfth capacitor is respectively connected to the negative electrode of the lighting lamp bead, the other end of the fourth inductor and the seventeenth resistor. The other end of the seventeenth resistor is respectively connected to the twentieth pin of the control chip and the eighteenth resistor. The first pin of the second voltage regulator chip, the emitter of the second triode, the second pin of the LED driving chip, the other end of the tenth capacitor, the other end of the eleventh capacitor and the other end of the eighteenth resistor are connected to the ground.

10. A fire-fighting lamp, characterized in that, It includes the fire lamp control circuit according to any one of claims 1 to 9.

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