Fire-fighting emergency marker lamp with adjustable display function

Abstract

The utility model discloses an adjustable display fire-fighting emergency marker lamp which comprises a bottom plate, a power line, a transparent cover plate, positioning holes, a circuit board and an LED matrix. A mounting plate is mounted in the bottom plate, a single-chip microcomputer is mounted on the mounting plate, and a power line of the single-chip microcomputer penetrates out of the rear side face of the bottom plate. The LED matrixes are installed on the left side and the right side of the front side face of the installation plate and electrically connected with the single-chip microcomputer. The transparent cover plate covers the bottom plate, and two positioning holes are formed in the left side edge and the right side edge of the transparent cover plate respectively. Compared with the prior art, the LED matrix can be controlled by the single chip microcomputer to display the direction and the distance of an exit, specific numbers can be adjusted by the controller, the direction and the distance of the exit can be clearly indicated, adjustment can be carried out according to different installation positions, and use is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of emergency lighting technology, specifically an adjustable display fire emergency sign light. Background Technology

[0002] Fire emergency signs are one of the most common types of indicator tools used in fire emergencies to indicate the location and distance of escape exits during a fire. Common fire emergency signs are characterized by low power consumption, high brightness, and long service life, but the displayed information is often not adjustable and cannot clearly show the distance to the exit, making them inconvenient to use. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model discloses an adjustable display fire emergency sign light, including a base plate, a power cord, a transparent cover plate, positioning holes, a circuit board, and an LED matrix; the circuit board is installed inside the base plate, and a microcontroller is installed on the circuit board, with the microcontroller's power cord passing through the rear side of the base plate; the LED matrix is ​​installed on the left and right sides of the front side of the circuit board and is electrically connected to the microcontroller; the transparent cover plate is installed on the base plate, with two positioning holes on each of its left and right edges;

[0004] The internal circuitry of the base plate 1 includes a core unit U1, a power supply circuit, and a control circuit; the power supply circuit includes an overvoltage and overcurrent protection circuit, a first-stage rectifier and filter circuit, a startup circuit, a protection circuit, a switching power supply, an oscillation circuit, a transformer T1, and a second-stage rectifier and filter circuit.

[0005] The overvoltage and overcurrent protection circuit includes node terminal J1, fuse FU1, and thermistor. Node terminal J1 port 3 is connected to node terminal J1 port 2 after being connected in series with fuse FU1 and thermistor.

[0006] The first-stage rectifier and filter circuit includes a full-bridge DB1, an inductor L01, an electrolytic capacitor C02, and a resistor R03; port 1 of the full-bridge DB1 is connected to port 2 of node terminal J1, and port 3 of the full-bridge DB1 is connected between fuse FU1 and the thermistor; after inductor L01 and resistor R03 are connected in parallel, one end is connected to port 2 of the full-bridge DB1, and the other end is connected to ground after being connected in series with electrolytic capacitor C02; port 4 of the full-bridge DB1 is grounded.

[0007] The startup circuit includes resistor R01, resistor R06, and capacitor EC02; after resistor R01, resistor R06, and capacitor EC02 are connected in series, one end of resistor R01 is connected between inductor L1 and resistor R03, and one end of capacitor EC02 is grounded.

[0008] The protection circuit includes resistor R02, resistor R04, capacitor C01, and diode VD2; the resistors R02, R04, and C01 are connected in series and both ends are connected between inductor L1 and resistor R03; the negative terminal of diode VD2 is connected between resistor R02 and resistor R04.

[0009] The switching power supply includes a power chip U5, resistors R07, R08, R09, R010, R011, and diode VD3; port 1 of the power chip U5 is connected between resistor R06 and capacitor EC2; resistor R08, diode VD3, and resistor R07 are connected in series, with one end of resistor R08 connected to port 2 of the power chip U5, and one end of resistor R07 connected between resistor R06 and capacitor EC2; one end of resistor R09 is connected to port 2 of the power chip U5, and the other end is grounded; the resistors... After R010 and R011 are connected in parallel, one end is connected to port 4 of power chip U5, and the other end is grounded; port 1 of the primary winding of transformer T1 is connected between inductor L1 and resistor R03, port 2 of the primary winding of transformer T1 is connected to the positive terminal of diode VD2, port 3 of the primary winding of transformer T1 is connected between resistor R08 and diode VD3, and port 4 of the primary winding of transformer T1 is grounded; ports 5 and 6 of power chip U5 are connected and then connected to port 2 of the primary winding of transformer T1; port 7 of power chip U5 is grounded.

[0010] The secondary rectifier and filter circuit includes diode VD1, capacitor EC1, and capacitor C06; the secondary winding port 5 of transformer T1 is grounded, and the secondary winding port 8 of transformer T1 is connected to the positive terminal of diode VD1; capacitor EC1 and capacitor C06 are connected in parallel, with one end connected to the negative terminal of diode VD1 and the other end grounded.

[0011] The control circuit includes a decomposition circuit, a signal acquisition circuit, a step-down circuit, a remote control signal receiving and transmission circuit, and a response circuit;

[0012] The decomposition circuit includes a signal acquisition and transmission circuit, a step-down circuit, an LED matrix digital tube display circuit, and a remote control signal receiving and transmission circuit.

[0013] The signal acquisition and transmission circuit includes a power supply P1, a resistor R1, capacitors C1 and C2, a transient voltage suppressor (TVS1), a rectifier bridge, transistors N1 and N2, a diode ZD1, a capacitor C3, resistors R3, R6, R7, R8, R9, and R11, and a light-emitting diode (LED5). Capacitors C1 and C2 are connected in series and then in parallel with the TVS1. One end of C1 is connected in series with resistor R1 and then connected to power supply P1 port 3, and the other end is connected to power supply P1 port 1. Rectifier bridge ports 1 and 2 are connected to the two ends of the TVS1. Rectifier bridge port 3 is connected to the collector (C) terminal of transistor N1. One end of resistor R9 is connected to rectifier bridge port 4, and the other end is connected to the emitter (E) terminal of transistor N1. Resistors R8, R9, and LED5 are connected in series, with one side of resistor R8 connected to transistor N1. The base (B) of diode LED5 is connected to rectifier bridge port 4; resistors R11 and R3, and diode ZD1 are connected in series, with one side of resistor R11 connected to rectifier bridge port 4 and the cathode of diode ZD1 connected to rectifier bridge port 3; the emitter (E) of transistor N2 is connected to rectifier bridge port 4, and the base (B) of transistor N2 is connected between resistors R11 and R3; one end of capacitor C3 is connected to the collector (C) of transistor N2, and the other end is connected to rectifier bridge port 4.

[0014] The step-down circuit includes diode D1, diode D3, rectifier capacitor EC1, capacitor C14, capacitor C15, capacitor C18, resistors R2, R4, R10, and R34, DC / DC chip U4, rectifier capacitor EC3, and inductor L1. Diode D1 and rectifier capacitor EC1 are connected in series, with the anode of diode D1 connected to rectifier bridge port 3 and rectifier capacitor EC1 connected to rectifier bridge port 4. One end of capacitor C15 is connected to the cathode of diode D1, and the other end is grounded. Port 5 of DC / DC chip U4 is connected to the cathode of diode D1. Both ends of resistor R2 are connected to DC / DC chip U4. DC / DC chip U4 port 5, DC / DC chip U4 port 4; one end of resistor R4 is connected to DC / DC chip U4 port 4, and the other end is grounded; both ends of resistor R10 are connected to DC / DC chip U4 port 2 and DC / DC chip U4 port 3; both ends of capacitor C14 are connected to DC / DC chip U4 port 1 and DC / DC chip U4 port 6; rectifier capacitor EC3 and capacitor C18 are connected in parallel, one end of which is connected to inductor L1, and the other end is connected to the positive terminal of diode D3; the negative terminal of diode D3 is connected to the other end of inductor L1, and then connected to DC / DC chip U4 port 6;

[0015] The LED matrix digital tube display circuit includes LEDs 6 to 61, an LED matrix digital tube driver chip U2, resistors R5, R15, R16, R17, R22 to R28, and capacitors C8 to C13. The positive terminals of LEDs 6 to 13 are connected in series with resistors R22 to R28 and resistor 5, respectively, and then connected to ports 8 to 15 of the LED matrix digital tube driver chip U2. The positive terminals of LEDs 6 to 13 are correspondingly connected to the positive terminals of LEDs 14 to 21, 22 to 29, 30 to 37, 38 to 45, 46 to 53, and 54 to 61.

[0016] The cathodes of LEDs LED6 to LED13, LED14 to LED21, LED22 to LED29, LED30 to LED37, LED38 to LED45, LED46 to LED53, and LED54 to LED61 are respectively connected to ports 27, 26, 24, 23, 20, 19, and 19 of the U2 terminal of the LED matrix digital tube driver chip. Port 18; Capacitors C11, C12, and C13 are connected in parallel, with one end connected to port 7 of the LED matrix digital tube driver chip U2 and the other end grounded; Resistors R15, R16, and R17 are connected together at one end and then connected to capacitor C18, with the other ends connected to ports 2, 3, and 4 of the LED matrix digital tube driver chip U2 respectively; Capacitors C11, C12, and C13 are connected together at one end and then grounded, with the other ends connected to ports 2, 3, and 4 of the LED matrix digital tube driver chip U2 respectively; LED matrix digital tube driver chip U2 ports 22, 25, and 28 are connected and then grounded;

[0017] The remote control signal receiving and transmission circuit includes a photoelectric receiving chip U3, a capacitor C7, a resistor R18, a resistor R20, and a resistor R21; both ends of the capacitor C7 are connected to the photoelectric receiving chip U3; one end of the resistor R18 is connected to the capacitor C18, and the other end is connected to port 2 of the photoelectric receiving chip U3; one end of the resistor R20 is connected to the capacitor C18, and the other end is connected to port 3 of the photoelectric receiving chip U3; one end of the resistor R21 is connected to port 3 of the photoelectric receiving chip U3, and the other end is connected to port 20 of the core unit U1.

[0018] Resistor R37 is connected in series with LED1 and LED2 and then connected to the collector of transistor N3. The other end of resistor R37 is connected to rectifier capacitor EC1. One end of resistor R38 is connected to port 14 of core unit U1 and the other end is connected to the base of transistor N3. One end of resistor R35 is connected to the emitter of transistor N3 and the other end is grounded.

[0019] Resistor R39 is connected in series with LED4 and LED3 and then connected to the collector of transistor N4. The other end of resistor R39 is connected to rectifier capacitor EC1. One end of resistor R42 is connected to port 5 of core unit U1 and the other end is connected to the base of transistor N4. One end of resistor R36 is connected to the emitter of transistor N4 and the other end is grounded.

[0020] After resistor R13 is connected in parallel with diode D2, the negative terminal of diode D2 is connected to capacitor C18, one end of resistor R14 is connected to the positive terminal of diode D2, and the other end is connected to port 20 of core unit U1; one end of capacitor C4 is grounded, and the other end is connected to the positive terminal of diode D2.

[0021] One end of resistor R40 is connected to rectifier capacitor EC1, and the other end is connected to power supply port P3 1; power supply port P3 2 is connected to the collector (C) terminal of transistor N6; one end of resistor R43 is connected to the base (B) terminal of transistor N6, and the other end is connected to core unit U1 port 6; one end of resistor R30 is connected to the emitter (E) terminal of transistor N6, and the other end is grounded; one end of resistor R12 is connected to power supply port P3 2, and the other end is connected to core unit U1 port 11; one end of resistor R32 is grounded, and the other end is connected to core unit U1 port 11.

[0022] One end of resistor R41 is connected to rectifier capacitor EC1, and the other end is connected to power supply port P4 1; power supply port P4 2 is connected to the collector (C) terminal of transistor N7; one end of resistor R44 is connected to the base (B) terminal of transistor N7, and the other end is connected to port 17 of core unit U1; one end of resistor R31 is connected to the emitter (E) terminal of transistor N6, and the other end is grounded; one end of resistor R29 is connected to power supply port P3 2, and the other end is connected to port 12 of core unit U1; one end of resistor R33 is grounded, and the other end is connected to port 12 of core unit U1.

[0023] Capacitors C5 and C6 are connected in parallel, with one end connected to port 19 of core unit U1 and the other end grounded; resistor R19 is connected in series with the emitting diode IR1 and then connected to the collector (C) of transistor N9; one end of resistor R45 is connected to the base (B) of transistor N9 and the other end is connected to port 13 of core unit U1; the two ends of resistor R46 are connected to the base (B) and emitter (E) of transistor N9, respectively; core unit U1 ports 1, 2, and 3 are connected to LED matrix digital tube driver chip U2 ports 2, 3, and 4, respectively.

[0024] As a preferred embodiment of this invention, the U3 port 1 of the photoelectric receiver chip is grounded.

[0025] As a preferred embodiment of this invention, the emitter of transistor N9 is grounded.

[0026] As a preferred embodiment of this utility model, the LED matrix 6 displays the exit direction and distance.

[0027] The beneficial effects of this utility model are: This utility model can control the LED matrix display of the exit direction and distance through a single-chip microcomputer, and the specific numbers can be adjusted through the controller, which can clearly indicate the exit direction and distance, and can be adjusted according to different installation positions, making it simple and convenient to use. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0029] Figure 1 This is a three-dimensional illustration of the present utility model. Figure 1 ;

[0030] Figure 2 This is a three-dimensional illustration of the present utility model. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the power supply circuit for this utility model;

[0033] Figure 5 This is a schematic diagram of the control circuit of this utility model;

[0034] In the diagram: 1. Base plate; 2. Power cord; 3. Transparent cover plate; 4. Positioning hole; 5. Circuit board; 6. LED matrix. Detailed Implementation

[0035] Example 1

[0036] like Figures 1 to 5 As shown, this utility model discloses an adjustable display fire emergency sign light, comprising a base plate 1, a power cord 2, a transparent cover plate 3, positioning holes 4, a circuit board 5, and an LED matrix 6. The circuit board 5 is installed inside the base plate 1, and a microcontroller is installed on the circuit board 5. The power cord 2 of the microcontroller passes through the rear side of the base plate 1. The LED matrix 6 is installed on the left and right sides of the front side of the circuit board 5 and is electrically connected to the microcontroller. The transparent cover plate 3 is installed on the base plate 1, and two positioning holes 4 are opened on each of its left and right edges. The LED matrix 6 displays the exit direction and distance.

[0037] The internal circuitry of the base plate 1 includes a core unit U1, a power supply circuit, and a control circuit; the power supply circuit includes an overvoltage and overcurrent protection circuit, a first-stage rectifier and filter circuit, a startup circuit, a protection circuit, a switching power supply, an oscillation circuit, a transformer T1, and a second-stage rectifier and filter circuit.

[0038] The overvoltage and overcurrent protection circuit includes node terminal J1, fuse FU1, and thermistor. Node terminal J1 port 3 is connected to node terminal J1 port 2 after being connected in series with fuse FU1 and thermistor.

[0039] The first-stage rectifier and filter circuit includes a full-bridge DB1, an inductor L01, an electrolytic capacitor C02, and a resistor R03; port 1 of the full-bridge DB1 is connected to port 2 of node terminal J1, and port 3 of the full-bridge DB1 is connected between fuse FU1 and the thermistor; after inductor L01 and resistor R03 are connected in parallel, one end is connected to port 2 of the full-bridge DB1, and the other end is connected to ground after being connected in series with electrolytic capacitor C02; port 4 of the full-bridge DB1 is grounded.

[0040] The startup circuit includes resistor R01, resistor R06, and capacitor EC02; after resistor R01, resistor R06, and capacitor EC02 are connected in series, one end of resistor R01 is connected between inductor L1 and resistor R03, and one end of capacitor EC02 is grounded.

[0041] The protection circuit includes resistor R02, resistor R04, capacitor C01, and diode VD2; the resistors R02, R04, and C01 are connected in series and both ends are connected between inductor L1 and resistor R03; the negative terminal of diode VD2 is connected between resistor R02 and resistor R04.

[0042] The switching power supply includes a power chip U5, resistors R07, R08, R09, R010, R011, and diode VD3; port 1 of the power chip U5 is connected between resistor R06 and capacitor EC2; resistor R08, diode VD3, and resistor R07 are connected in series, with one end of resistor R08 connected to port 2 of the power chip U5, and one end of resistor R07 connected between resistor R06 and capacitor EC2; one end of resistor R09 is connected to port 2 of the power chip U5, and the other end is grounded; the resistors... After R010 and R011 are connected in parallel, one end is connected to port 4 of power chip U5, and the other end is grounded; port 1 of the primary winding of transformer T1 is connected between inductor L1 and resistor R03, port 2 of the primary winding of transformer T1 is connected to the positive terminal of diode VD2, port 3 of the primary winding of transformer T1 is connected between resistor R08 and diode VD3, and port 4 of the primary winding of transformer T1 is grounded; ports 5 and 6 of power chip U5 are connected and then connected to port 2 of the primary winding of transformer T1; port 7 of power chip U5 is grounded.

[0043] The secondary rectifier and filter circuit includes diode VD1, capacitor EC1, and capacitor C06; the secondary winding port 5 of transformer T1 is grounded, and the secondary winding port 8 of transformer T1 is connected to the positive terminal of diode VD1; capacitor EC1 and capacitor C06 are connected in parallel, with one end connected to the negative terminal of diode VD1 and the other end grounded.

[0044] The control circuit includes a decomposition circuit, a signal acquisition circuit, a step-down circuit, a remote control signal receiving and transmission circuit, and a response circuit;

[0045] The decomposition circuit includes a signal acquisition and transmission circuit, a step-down circuit, an LED matrix digital tube display circuit, and a remote control signal receiving and transmission circuit.

[0046] The signal acquisition and transmission circuit includes a power supply P1, a resistor R1, capacitors C1 and C2, a transient voltage suppressor (TVS1), a rectifier bridge, transistors N1 and N2, a diode ZD1, a capacitor C3, resistors R3, R6, R7, R8, R9, and R11, and a light-emitting diode (LED5). Capacitors C1 and C2 are connected in series and then in parallel with the TVS1. One end of C1 is connected in series with resistor R1 and then connected to port 3 of the power supply P1, while the other end is connected to port 1 of the power supply P1. Rectifier bridge ports 1 and 2 are connected to both ends of the TVS1. Rectifier bridge port 3 is connected to the collector (C) terminal of transistor N1. One end of resistor R9 is connected to rectifier bridge port 4, and the other end is connected to the emitter (E) terminal of transistor N1. Resistors R8, R9, and LED5 are connected in series, with one side of resistor R8 connected to transistor N1. The base (B) of diode LED5 is connected to rectifier bridge port 4; resistors R11 and R3, and diode ZD1 are connected in series, with one side of resistor R11 connected to rectifier bridge port 4 and the cathode of diode ZD1 connected to rectifier bridge port 3; the emitter (E) of transistor N2 is connected to rectifier bridge port 4, and the base (B) of transistor N2 is connected between resistors R11 and R3; one end of capacitor C3 is connected to the collector (C) of transistor N2, and the other end is connected to rectifier bridge port 4.

[0047] The step-down circuit includes diode D1, diode D3, rectifier capacitor EC1, capacitor C14, capacitor C15, capacitor C18, resistors R2, R4, R10, R34, DC / DC chip U4, rectifier capacitor EC3, and inductor L1. Diode D1 and rectifier capacitor EC1 are connected in series, with the anode of diode D1 connected to rectifier bridge port 3 and rectifier capacitor EC1 connected to rectifier bridge port 4. One end of capacitor C15 is connected to the cathode of diode D1, and the other end is grounded. Port 5 of DC / DC chip U4 is connected to the cathode of diode D1. Resistor R... 2. Connect both ends of resistor R4 to port 5 and port 4 of DC / DC chip U4; connect one end of resistor R4 to port 4 of DC / DC chip U4 and the other end to ground; connect both ends of resistor R10 to port 2 and port 3 of DC / DC chip U4; connect both ends of capacitor C14 to port 1 and port 6 of DC / DC chip U4; after rectifier capacitor EC3 and capacitor C18 are connected in parallel, one end is connected to inductor L1 and the other end is connected to the positive terminal of diode D3; after diode D3 is connected to the other end of inductor L1...

[0048] Connect to port 6 of the DC / DC chip U4;

[0049] The LED matrix digital tube display circuit includes LEDs 6 to 61, an LED matrix digital tube driver chip U2, resistors R5, R15, R16, R17, R22 to R28, and capacitors C8 to C13. The positive terminals of LEDs 6 to 13 are connected in series with resistors R22 to R28 and resistor 5, respectively, and then connected to ports 8 to 15 of the LED matrix digital tube driver chip U2. The positive terminals of LEDs 6 to 13 are correspondingly connected to the positive terminals of LEDs 14 to 21, 22 to 29, 30 to 37, 38 to 45, 46 to 53, and 54 to 61.

[0050] The cathodes of LEDs LED6 to LED13, LED14 to LED21, LED22 to LED29, LED30 to LED37, LED38 to LED45, LED46 to LED53, and LED54 to LED61 are respectively connected to ports 27, 26, 24, 23, 20, 19, and 19 of the U2 terminal of the LED matrix digital tube driver chip. Port 18; Capacitors C11, C12, and C13 are connected in parallel, with one end connected to port 7 of the LED matrix digital tube driver chip U2 and the other end grounded; Resistors R15, R16, and R17 are connected together at one end and then connected to capacitor C18, with the other ends connected to ports 2, 3, and 4 of the LED matrix digital tube driver chip U2 respectively; Capacitors C11, C12, and C13 are connected together at one end and then grounded, with the other ends connected to ports 2, 3, and 4 of the LED matrix digital tube driver chip U2 respectively; LED matrix digital tube driver chip U2 ports 22, 25, and 28 are connected and then grounded;

[0051] The remote control signal receiving and transmission circuit includes a photoelectric receiving chip U3, a capacitor C7, a resistor R18, a resistor R20, and a resistor R21; both ends of the capacitor C7 are connected to the photoelectric receiving chip U3; one end of the resistor R18 is connected to the capacitor C18, and the other end is connected to port 2 of the photoelectric receiving chip U3; one end of the resistor R20 is connected to the capacitor C18, and the other end is connected to port 3 of the photoelectric receiving chip U3; one end of the resistor R21 is connected to port 3 of the photoelectric receiving chip U3, and the other end is connected to port 20 of the core unit U1.

[0052] Resistor R37 is connected in series with LED1 and LED2 and then connected to the collector of transistor N3. The other end of resistor R37 is connected to rectifier capacitor EC1. One end of resistor R38 is connected to port 14 of core unit U1 and the other end is connected to the base of transistor N3. One end of resistor R35 is connected to the emitter of transistor N3 and the other end is grounded.

[0053] Resistor R39 is connected in series with LED4 and LED3 and then connected to the collector of transistor N4. The other end of resistor R39 is connected to rectifier capacitor EC1. One end of resistor R42 is connected to port 5 of core unit U1 and the other end is connected to the base of transistor N4. One end of resistor R36 is connected to the emitter of transistor N4 and the other end is grounded.

[0054] After resistor R13 is connected in parallel with diode D2, the negative terminal of diode D2 is connected to capacitor C18, one end of resistor R14 is connected to the positive terminal of diode D2, and the other end is connected to port 20 of core unit U1; one end of capacitor C4 is grounded, and the other end is connected to the positive terminal of diode D2.

[0055] One end of resistor R40 is connected to rectifier capacitor EC1, and the other end is connected to power supply port P3 1; power supply port P3 2 is connected to the collector (C) terminal of transistor N6; one end of resistor R43 is connected to the base (B) terminal of transistor N6, and the other end is connected to core unit U1 port 6; one end of resistor R30 is connected to the emitter (E) terminal of transistor N6, and the other end is grounded; one end of resistor R12 is connected to power supply port P3 2, and the other end is connected to core unit U1 port 11; one end of resistor R32 is grounded, and the other end is connected to core unit U1 port 11.

[0056] One end of resistor R41 is connected to rectifier capacitor EC1, and the other end is connected to power supply port P4 1; power supply port P4 2 is connected to the collector (C) terminal of transistor N7; one end of resistor R44 is connected to the base (B) terminal of transistor N7, and the other end is connected to port 17 of core unit U1; one end of resistor R31 is connected to the emitter (E) terminal of transistor N6, and the other end is grounded; one end of resistor R29 is connected to power supply port P3 2, and the other end is connected to port 12 of core unit U1; one end of resistor R33 is grounded, and the other end is connected to port 12 of core unit U1.

[0057] Capacitors C5 and C6 are connected in parallel, with one end connected to port 19 of core unit U1 and the other end grounded; resistor R19 is connected in series with the emitting diode IR1 and then connected to the collector (C) of transistor N9; one end of resistor R45 is connected to the base (B) of transistor N9 and the other end is connected to port 13 of core unit U1; the two ends of resistor R46 are connected to the base (B) and emitter (E) of transistor N9, respectively; core unit U1 ports 1, 2, and 3 are connected to LED matrix digital tube driver chip U2 ports 2, 3, and 4, respectively.

[0058] The working principle of this utility model is as follows: Fuse FU1 and thermistor RV1 form an overvoltage and overcurrent protection circuit. The full-bridge rectifier DB1, inductor L01, resistor R03, and electrolytic capacitor C02 form a rectifier filter, converting the input 220V AC voltage into DC voltage. Resistors R01 and R06, and capacitor EC2 form a startup circuit, providing the startup voltage for power chip U5, enabling the power chip to operate. Resistors R02 and R04, capacitor C01, and diode VD2 form a protection circuit, clamping excessively high voltages to a certain value, protecting the MOSFETs within the power chip from overvoltage breakdown. Diode VD3, resistor R07, and capacitor EC2 provide a continuous operating voltage to the power chip during normal operation of the switching power supply, maintaining stable operation. The power chip, peripheral circuits, and the primary section of the switching power supply transformer form an oscillation circuit, converting the rectified and filtered DC voltage into a high-frequency AC voltage, which is induced in the secondary winding through the switching transformer core. The switching power supply transformer transmits the high-frequency high voltage generated in the primary winding to the secondary winding, completing the voltage reduction process. Diode VD1, capacitor EC1, and capacitor C06 form a rectifier filter that converts the high-frequency low voltage induced in the secondary winding into a 36V DC voltage for use in the subsequent stages.

[0059] The DC 36V input voltage with bus modulation at terminal P1 is decomposed into a signal portion after passing through resistor R1 and a rectifier bridge. This signal is then acquired by the signal acquisition section composed of transistors N1 and N2 and peripheral circuitry, and transmitted to the corresponding ACK and CK terminals of microcontroller U1 via the CK and ACK terminals, completing the signal transmission. The DC 36V on the L+ line is filtered by isolation diode D1 and capacitor EC before being transmitted to the back end. The DC / DC chip U4 and peripheral circuitry form the DC 36V to DC 5V voltage section, powering the subsequent microcontroller, light source, and variable meter LED matrix digital tube. LEDs LED6-LED61, LED matrix digital tube driver chip U2, and peripheral circuitry form the LED matrix digital tube display section, indicating 8888 meters to the left and 8888 meters to the right. Transistors N3, N4, N5, N6, N7, and N8, along with peripheral circuitry, form the LED light source driver section for the left-turn arrow, evacuation exit pattern, and right-turn arrow, illuminating the corresponding signs and indicating directions. The photoelectric receiver chip U3 and its peripheral circuitry form a remote control signal receiving and transmission circuit. It transmits the signals emitted by the remote control to the corresponding pins of the microcontroller U1 for analysis, illuminating the lights at the distance required by the customer or on-site. This allows for remote control adjustment from 0000 meters to 9999 meters. Transistor N8, emitting diode IR1, and peripheral circuitry form a response circuit. The microcontroller analyzes the signals emitted by the programmable remote control and then sends them back to the programmable remote control. The microcontroller U1 and its peripheral circuitry form the core unit, handling the transmission, analysis, and corresponding command output of bus signals. This includes output control for whether the left and right arrows and evacuation exit pattern lights are illuminated, and detection of whether the light source is functioning correctly. It receives and analyzes external meter-scale programming signals, corresponding to the command output for illuminating the LED matrix digital tubes. The programmable remote control is not included within the lighting fixture; one remote control can be used for all lighting fixtures in the project.

[0060] Components not described in detail in this article are existing technologies.

[0061] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An adjustable display fire emergency sign light, characterized in that: The system includes a base plate (1), a power cord (2), a transparent cover plate (3), positioning holes (4), a circuit board (5), and an LED matrix (6). The circuit board (5) is installed inside the base plate (1), and a microcontroller is installed on the circuit board (5). The power cord (2) of the microcontroller passes through the rear side of the base plate (1). The LED matrix (6) is installed on the left and right sides of the front side of the circuit board (5) and is electrically connected to the microcontroller. The transparent cover plate (3) is installed on the base plate (1), and two positioning holes (4) are opened on each of its left and right edges. The internal circuit of the base plate (1) includes a core unit U1, a power supply circuit and a control circuit; the power supply circuit includes an overvoltage and overcurrent protection circuit, a first-stage rectifier and filter circuit, a start-up circuit, a protection circuit, a switching power supply, an oscillation circuit, a transformer T1, and a second-stage rectifier and filter circuit; The overvoltage and overcurrent protection circuit includes node terminal J1, fuse FU1, and thermistor. Node terminal J1 port 3 is connected to node terminal J1 port 2 after being connected in series with fuse FU1 and thermistor. The first-stage rectifier and filter circuit includes a full-bridge DB1, an inductor L01, an electrolytic capacitor C02, and a resistor R03; port 1 of the full-bridge DB1 is connected to port 2 of node terminal J1, and port 3 of the full-bridge DB1 is connected between fuse FU1 and the thermistor; after inductor L01 and resistor R03 are connected in parallel, one end is connected to port 2 of the full-bridge DB1, and the other end is connected to ground after being connected in series with electrolytic capacitor C02; port 4 of the full-bridge DB1 is grounded. The startup circuit includes resistor R01, resistor R06, and capacitor EC02; after resistor R01, resistor R06, and capacitor EC02 are connected in series, one end of resistor R01 is connected between inductor L1 and resistor R03, and one end of capacitor EC02 is grounded. The protection circuit includes resistor R02, resistor R04, capacitor C01, and diode VD2; the resistors R02, R04, and C01 are connected in series and both ends are connected between inductor L1 and resistor R03; the negative terminal of diode VD2 is connected between resistor R02 and resistor R04. The switching power supply includes a power chip U5, resistors R07, R08, R09, R010, R011, and diode VD3; port 1 of the power chip U5 is connected between resistor R06 and capacitor EC2; resistor R08, diode VD3, and resistor R07 are connected in series, with one end of resistor R08 connected to port 2 of the power chip U5, and one end of resistor R07 connected between resistor R06 and capacitor EC2; one end of resistor R09 is connected to port 2 of the power chip U5, and the other end is grounded; the resistors... After R010 and R011 are connected in parallel, one end is connected to port 4 of power chip U5, and the other end is grounded; port 1 of the primary winding of transformer T1 is connected between inductor L1 and resistor R03, port 2 of the primary winding of transformer T1 is connected to the positive terminal of diode VD2, port 3 of the primary winding of transformer T1 is connected between resistor R08 and diode VD3, and port 4 of the primary winding of transformer T1 is grounded; ports 5 and 6 of power chip U5 are connected and then connected to port 2 of the primary winding of transformer T1; port 7 of power chip U5 is grounded. The secondary rectifier and filter circuit includes diode VD1, capacitor EC1, and capacitor C06; the secondary winding port 5 of transformer T1 is grounded, and the secondary winding port 8 of transformer T1 is connected to the positive terminal of diode VD1; capacitor EC1 and capacitor C06 are connected in parallel, with one end connected to the negative terminal of diode VD1 and the other end grounded. The control circuit includes a decomposition circuit, a signal acquisition circuit, a step-down circuit, a remote control signal receiving and transmission circuit, and a response circuit; The decomposition circuit includes a signal acquisition and transmission circuit, a step-down circuit, an LED matrix digital tube display circuit, and a remote control signal receiving and transmission circuit. The signal acquisition and transmission circuit includes a power supply P1, a resistor R1, capacitors C1 and C2, a transient voltage suppressor (TVS1), a rectifier bridge, transistors N1 and N2, a diode ZD1, a capacitor C3, resistors R3, R6, R7, R8, R9, and R11, and a light-emitting diode (LED5). Capacitors C1 and C2 are connected in series and then in parallel with the TVS1. One end of C1 is connected in series with resistor R1 and then connected to power supply P1 port 3, and the other end is connected to power supply P1 port 1. Rectifier bridge ports 1 and 2 are connected to the two ends of the TVS1. Rectifier bridge port 3 is connected to the collector (C) terminal of transistor N1. One end of resistor R9 is connected to rectifier bridge port 4, and the other end is connected to the emitter (E) terminal of transistor N1. Resistors R8, R9, and LED5 are connected in series, with one side of resistor R8 connected to transistor N1. The base (B) of diode LED5 is connected to rectifier bridge port 4; resistors R11 and R3, and diode ZD1 are connected in series, with one side of resistor R11 connected to rectifier bridge port 4 and the cathode of diode ZD1 connected to rectifier bridge port 3; the emitter (E) of transistor N2 is connected to rectifier bridge port 4, and the base (B) of transistor N2 is connected between resistors R11 and R3; one end of capacitor C3 is connected to the collector (C) of transistor N2, and the other end is connected to rectifier bridge port 4. The step-down circuit includes diode D1, diode D3, rectifier capacitor EC1, capacitor C14, capacitor C15, capacitor C18, resistors R2, R4, R10, and R34, DC / DC chip U4, rectifier capacitor EC3, and inductor L1. Diode D1 and rectifier capacitor EC1 are connected in series, with the anode of diode D1 connected to rectifier bridge port 3 and rectifier capacitor EC1 connected to rectifier bridge port 4. One end of capacitor C15 is connected to the cathode of diode D1, and the other end is grounded. Port 5 of DC / DC chip U4 is connected to the diode. The negative terminal of diode D1 is connected to the DC / DC chip; the two ends of resistor R2 are connected to port 5 and port 4 of DC / DC chip U4; one end of resistor R4 is connected to port 4 of DC / DC chip U4, and the other end is grounded; the two ends of resistor R10 are connected to port 2 and port 3 of DC / DC chip U4; the two ends of capacitor C14 are connected to port 1 and port 6 of DC / DC chip U4; rectifier capacitor EC3 and capacitor C18 are connected in parallel, one end of which is connected to inductor L1, and the other end is connected to the positive terminal of diode D3; After the negative terminal of diode D3 is connected to the other end of inductor L1, it is connected to port 6 of DC / DC chip U4; The LED matrix digital tube display circuit includes LEDs 6 to 61, an LED matrix digital tube driver chip U2, resistors R5, R15, R16, R17, R22 to R28, and capacitors C8 to C13. The positive terminals of LEDs 6 to 13 are connected in series with resistors R22 to R28 and resistor 5, respectively, and then connected to ports 8 to 15 of the LED matrix digital tube driver chip U2. The positive terminals of LEDs 6 to 13 are correspondingly connected to the positive terminals of LEDs 14 to 21, 22 to 29, 30 to 37, 38 to 45, 46 to 53, and 54 to 61. The cathodes of LEDs LED6 to LED13, LED14 to LED21, LED22 to LED29, LED30 to LED37, LED38 to LED45, LED46 to LED53, and LED54 to LED61 are respectively connected to ports 27, 26, 24, 23, 20, 19, and 19 of the U2 terminal of the LED matrix digital tube driver chip. Port 18; Capacitors C11, C12, and C13 are connected in parallel, with one end connected to port 7 of the LED matrix digital tube driver chip U2 and the other end grounded; Resistors R15, R16, and R17 are connected together at one end and then connected to capacitor C18, with the other ends connected to ports 2, 3, and 4 of the LED matrix digital tube driver chip U2 respectively; Capacitors C11, C12, and C13 are connected together at one end and then grounded, with the other ends connected to ports 2, 3, and 4 of the LED matrix digital tube driver chip U2 respectively; LED matrix digital tube driver chip U2 ports 22, 25, and 28 are connected and then grounded; The remote control signal receiving and transmission circuit includes a photoelectric receiving chip U3, a capacitor C7, a resistor R18, a resistor R20, and a resistor R21; both ends of the capacitor C7 are connected to the photoelectric receiving chip U3; one end of the resistor R18 is connected to the capacitor C18, and the other end is connected to port 2 of the photoelectric receiving chip U3; one end of the resistor R20 is connected to the capacitor C18, and the other end is connected to port 3 of the photoelectric receiving chip U3; one end of the resistor R21 is connected to port 3 of the photoelectric receiving chip U3, and the other end is connected to port 20 of the core unit U1. Resistor R37 is connected in series with LED1 and LED2 and then connected to the collector of transistor N3. The other end of resistor R37 is connected to rectifier capacitor EC1. One end of resistor R38 is connected to port 14 of core unit U1 and the other end is connected to the base of transistor N3. One end of resistor R35 is connected to the emitter of transistor N3 and the other end is grounded. Resistor R39 is connected in series with LED4 and LED3 and then connected to the collector of transistor N4. The other end of resistor R39 is connected to rectifier capacitor EC1. One end of resistor R42 is connected to port 5 of core unit U1 and the other end is connected to the base of transistor N4. One end of resistor R36 is connected to the emitter of transistor N4 and the other end is grounded. After resistor R13 is connected in parallel with diode D2, the negative terminal of diode D2 is connected to capacitor C18, one end of resistor R14 is connected to the positive terminal of diode D2, and the other end is connected to port 20 of core unit U1; one end of capacitor C4 is grounded, and the other end is connected to the positive terminal of diode D2. One end of resistor R40 is connected to rectifier capacitor EC1, and the other end is connected to power supply port P3 1; power supply port P3 2 is connected to the collector (C) terminal of transistor N6; one end of resistor R43 is connected to the base (B) terminal of transistor N6, and the other end is connected to core unit U1 port 6; one end of resistor R30 is connected to the emitter (E) terminal of transistor N6, and the other end is grounded; one end of resistor R12 is connected to power supply port P3 2, and the other end is connected to core unit U1 port 11; one end of resistor R32 is grounded, and the other end is connected to core unit U1 port 11. One end of resistor R41 is connected to rectifier capacitor EC1, and the other end is connected to power supply port P4 1; power supply port P4 2 is connected to the collector (C) terminal of transistor N7; one end of resistor R44 is connected to the base (B) terminal of transistor N7, and the other end is connected to port 17 of core unit U1; one end of resistor R31 is connected to the emitter (E) terminal of transistor N6, and the other end is grounded; one end of resistor R29 is connected to power supply port P3 2, and the other end is connected to port 12 of core unit U1; one end of resistor R33 is grounded, and the other end is connected to port 12 of core unit U1. Capacitors C5 and C6 are connected in parallel, with one end connected to port 19 of core unit U1 and the other end grounded; resistor R19 is connected in series with the emitting diode IR1 and then connected to the collector (C) of transistor N9; one end of resistor R45 is connected to the base (B) of transistor N9 and the other end is connected to port 13 of core unit U1; the two ends of resistor R46 are connected to the base (B) and emitter (E) of transistor N9, respectively; core unit U1 ports 1, 2, and 3 are connected to LED matrix digital tube driver chip U2 ports 2, 3, and 4, respectively.

2. The adjustable display fire emergency sign light according to claim 1, characterized in that: The U3 port 1 of the optoelectronic receiver chip is grounded.

3. The adjustable display fire emergency sign light according to claim 1, characterized in that: The N9E terminal of the transistor is grounded.

4. An adjustable display fire emergency sign light according to claim 1, characterized in that: The LED matrix (6) displays the exit direction and distance.

Images