Street lamp smart cloud box
By setting up a street light power control circuit in the smart street light cloud box, the street light power supply can be directly driven by the dimming signal, which solves the problems of flickering and resource waste caused by insufficient street light dimming signal and realizes simplified street light power control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN CENTM INFORMATION
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-10
AI Technical Summary
In existing street light dimming control, when the dimming signal is 0 or not output, the street light may still flicker or dimly light up, and additional IO port resources or high turn-on voltage lamps are required, resulting in resource waste and selection limitations.
A street light power control circuit is installed in the smart cloud box for street lights. The street light power control circuit is directly driven by the dimming signal to achieve complete shutdown of the street light power supply, avoiding the use of additional control signals and high-voltage lamps.
It enables the street light power to be turned off using only a dimming signal, avoiding the need for additional control signals and high-voltage lamps, and simplifying street light dimming control.
Smart Images
Figure CN224111343U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to street lamp technical field, especially a street lamp wisdom cloud box. BACKGROUND
[0002] Generally to the light control of street lamp, adopt the mode that the dimmer output PWM or DAC dimming signal to street lamp drive power to light control, some street lamps still have residual voltage when the dimming signal output is 0 or does not output, that is, when PWM duty ratio is 0 or DAC output is 0, street lamp still appears flicker or micro-bright lamp condition, at this moment need to increase a control signal to control street lamp power, close street lamp power, however increase a control signal, need to increase an IO port resource on single-chip microcomputer additionally, and increase the change of software, or select the lamp that the turn-on voltage should be higher than the residual voltage of drive power, like this, the turn-on voltage of lamp has strict requirement, will cause the selection limitation of street lamp. UTILITY MODEL CONTENTS
[0003] The utility model solves the technical problem that provide a kind of street lamp wisdom cloud box, can be realized to street lamp power with dimming signal only Complete closing.
[0004] In order to solve the above technical problem, the technical scheme that the utility model adopts is as follows:
[0005] A kind of street lamp wisdom cloud box, including the street lamp power control circuit being arranged in street lamp wisdom cloud box, the input end of the street lamp power control circuit is electrically connected with the dimming signal output end of the dimmer of peripheral equipment to receive the dimming signal of dimmer, the power drive control end of the street lamp power control circuit is electrically connected with the street lamp power of peripheral equipment, the power drive control end of the street lamp power control circuit outputs power drive control signal to street lamp power to close street lamp power.
[0006] Further, the street lamp power control circuit includes transistor Q1, transistor Q2 and capacitor C1, the input end of the transistor Q2 is electrically connected with the dimming signal output end of the dimmer of peripheral equipment, the output end of the transistor Q2 is respectively electrically connected with one end of capacitor C1 and the input end of transistor Q1, the output end of the transistor Q1 is electrically connected with street lamp power.
[0007] Further, it further includes voltage dividing unit, and the input end of the transistor Q2 is electrically connected with the dimming signal output end of the dimmer of peripheral equipment by voltage dividing unit.
[0008] Further, the voltage dividing unit includes resistance R4 and resistance R5, one end of the resistance R4 is electrically connected with the dimming signal output end of the dimmer of peripheral equipment, the other end of the resistance R4 is respectively electrically connected with one end of resistance R5 and the input end of transistor Q2, the other end of the resistance R5 is grounded.
[0009] Further, the transistor Q1 is electrically connected with one end of the capacitor C1 and the output end of the transistor Q2 through the resistance R3.
[0010] Further, the transistor Q1 is electrically connected with one end of the capacitor C1 and the output end of the transistor Q2 through the resistance R3.
[0011] Further, the transistor Q1 is electrically connected with one end of the capacitor C1 and the output end of the transistor Q2 through the resistance R3.
[0012] Further, the transistor Q1 is electrically connected with one end of the capacitor C1 and the output end of the transistor Q2 through the resistance R3.
[0013] Further, the transistor Q1 and the transistor Q2 are all triodes.
[0014] The base of the transistor Q1 is electrically connected with one end of the capacitor C1 and the collector of the transistor Q2, the emitter of the transistor Q1 is grounded, and the collector of the transistor Q1 is electrically connected with the street lamp power supply.
[0015] The base of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer, the collector of the transistor Q2 is electrically connected with one end of the capacitor C1 and the base of the transistor Q1, and the emitter of the transistor Q2 is grounded.
[0016] Further, the transistor Q1 and the transistor Q2 are all MOS tubes.
[0017] The gate of the transistor Q1 is electrically connected with one end of the resistance R2, the anode of the diode D1, one end of the capacitor C1 and the drain of the transistor Q2, the source of the transistor Q1 is grounded, and the drain of the transistor Q1 is electrically connected with the street lamp power supply.
[0018] The base of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer, the collector of the transistor Q2 is electrically connected with one end of the capacitor C1 and the base of the transistor Q1, and the emitter of the transistor Q2 is grounded.
[0019] The utility model discloses the beneficial effect lies in:
[0020] The scheme sets the street lamp power supply control circuit in the street lamp intelligent cloud box, the input end of the street lamp power supply control circuit is electrically connected with the dimming signal output end of the dimmer of the external device, so that the dimming signal generated by the dimming signal output end of the dimmer can be directly transmitted to the street lamp power supply control circuit, the power supply driving control end of the street lamp power supply control circuit is electrically connected with the street lamp power supply to generate a power supply driving control signal to drive the street lamp power supply, so that the street lamp power supply can be turned off, and the street lamp power supply can be completely turned off only by the dimming signal, so that an additional control signal is not needed to control the street lamp power supply, and the lamp with the open voltage higher than the residual voltage of the driving power supply does not need to be selected. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The connection diagram of the street lamp intelligent cloud box of the utility model;
[0022] Figure 2 The circuit principle diagram of the street lamp intelligent cloud box of the utility model;
[0023] Label explanation:
[0024] 1, street lamp power supply control circuit; 2, street lamp power supply; 3, street lamp driving power supply; 4, dimmer. DETAILED DESCRIPTION
[0025] To explain the technical content, the purposes and effects of the utility model in detail, the following will be explained in combination with the embodiment and the drawings.
[0026] Please refer to Figure 1 The technical scheme adopted by the utility model is:
[0027] A street lamp intelligent cloud box, comprising a street lamp power supply control circuit arranged in the street lamp intelligent cloud box, an input end of the street lamp power supply control circuit is electrically connected with the dimming signal output end of the dimmer of the external device to receive the dimming signal of the dimmer, the power supply driving control end of the street lamp power supply control circuit is electrically connected with the street lamp power supply, and the power supply driving control end of the street lamp power supply control circuit outputs a power supply driving control signal to the street lamp power supply to turn off the street lamp power supply.
[0028] From the above description, the utility model has the beneficial effects that:
[0029] The scheme sets a street lamp power control circuit in the street lamp intelligent cloud box, the input end of the street lamp power control circuit is electrically connected with the dimming signal output end of the dimmer of the external device, so that the dimming signal generated by the dimming signal output end of the dimmer can be directly transmitted to the street lamp power control circuit, the power supply driving control end of the street lamp power control circuit is electrically connected with the street lamp power supply to generate a power supply driving control signal to drive the street lamp power supply, so that the street lamp power supply can be turned off, and the street lamp power supply can be completely turned off only by using the dimming signal, so that an additional control signal is not needed to control the street lamp power supply, and a lamp with an open voltage higher than the residual voltage of the driving power supply does not need to be selected.
[0030] Further, the street lamp power control circuit comprises a transistor Q1, a transistor Q2 and a capacitor C1, the input end of the transistor Q2 is electrically connected with the dimming signal output end of the dimmer of the external device, the output end of the transistor Q2 is respectively electrically connected with one end of the capacitor C1 and the input end of the transistor Q1, and the output end of the transistor Q1 is electrically connected with the street lamp power supply.
[0031] Further, the scheme further comprises a voltage dividing unit, and the input end of the transistor Q2 is electrically connected with the dimming signal output end of the dimmer of the external device through the voltage dividing unit.
[0032] Further, the voltage dividing unit comprises a resistor R4 and a resistor R5, one end of the resistor R4 is electrically connected with the dimming signal output end of the dimmer of the external device, the other end of the resistor R4 is respectively electrically connected with one end of the resistor R5 and the input end of the transistor Q2, and the other end of the resistor R5 is grounded.
[0033] As known from the above description, the resistor R4 is a current limiting resistor of the input end of the transistor Q2 (the input end is the base when the transistor Q2 is a triode); and the resistor R5 is used to make the input end of the transistor Q2 grounded and make the transistor Q2 stably in the cut-off state when there is no signal input.
[0034] Further, the scheme further comprises a resistor R3, and the input end of the transistor Q1 is respectively electrically connected with one end of the capacitor C1 and the output end of the transistor Q2 through the resistor R3.
[0035] As known from the above description, the resistor R3 is a current limiting resistor of the transistor Q1.
[0036] Further, the scheme further comprises a resistor R2, one end of the resistor R2 is connected with a 5V power supply, and the other end of the resistor R2 is respectively electrically connected with the output end of the transistor Q2, one end of the capacitor C1 and the input end of the transistor Q1.
[0037] From the above description, the resistance R2 is to pull up the output end of the transistor Q2 (the output end is the collector when the transistor Q2 is a transistor) to 5V, when the transistor Q2 is off, the output end of the transistor Q2 can output high level, so as to turn on the transistor Q1.
[0038] Further, it also includes a diode D1, the cathode of the diode D1 is electrically connected with one end of the resistance R2 and the cathode of the diode D1 is grounded, the anode of the diode D1 is electrically connected with the other end of the resistance R2, the output end of the transistor Q2, one end of the capacitor C1 and the input end of the transistor Q1 respectively.
[0039] From the above description, the diode D1 is to make the capacitor C1 quickly discharge through the diode D1 when the whole device is powered off.
[0040] Further, it also includes a resistance R1, one end of the resistance R1 is electrically connected with the output end of the transistor Q1 and the power supply of the street lamp respectively.
[0041] From the above description, the output end of the transistor Q1 (the output end is the collector when the transistor Q1 is a transistor) is pulled up, and when the transistor Q1 is off, it can output high level.
[0042] Further, the transistor Q1 and the transistor Q2 are both transistors;
[0043] The base of the transistor Q1 is electrically connected with one end of the capacitor C1 and the collector of the transistor Q2 respectively, the emitter of the transistor Q1 is grounded, and the collector of the transistor Q1 is electrically connected with the power supply of the street lamp.
[0044] The base of the transistor Q2 is electrically connected with the dimming signal output end of the dimmer of the external device, the collector of the transistor Q2 is electrically connected with one end of the capacitor C1 and the base of the transistor Q1 respectively, and the emitter of the transistor Q2 is grounded.
[0045] Further, the transistor Q1 and the transistor Q2 are both MOS transistors;
[0046] The gate of the transistor Q1 is electrically connected with one end of the resistance R2, the anode of the diode D1, one end of the capacitor C1 and the drain of the transistor Q2 respectively, the source of the transistor Q1 is grounded, and the drain of the transistor Q1 is electrically connected with the power supply of the street lamp.
[0047] The gate of the transistor Q2 is electrically connected with the dimming signal output end of the dimmer of the external device, the drain of the transistor Q2 is electrically connected with one end of the resistance R2, the anode of the diode D1, one end of the capacitor C1 and the gate of the transistor Q1 respectively, and the source of the transistor Q2 is grounded.
[0048] Please refer toFigure 1 and Figure 2 The embodiment one of the utility model for:
[0049] Please refer to Figure 1 A street lamp wisdom cloud box, including the street lamp power supply 2 control circuit 1 set in the street lamp wisdom cloud box, the input of street lamp power supply 2 control circuit 1 is electrically connected with the dimmer 4 of external device Dimming signal output end to receive the dimmer 4 dimming signal, the power drive control end of street lamp power supply 2 control circuit 1 is electrically connected with the street lamp power supply 2 of external device, the power drive control end of street lamp power supply 2 control circuit 1 exports power drive control signal to street lamp power supply 2 to close street lamp power supply 2, street lamp power supply 2 is electrically connected with street lamp drive power supply 3, for converting the voltage input to street lamp power supply 2 into the voltage suitable for street lamp.
[0050] Please refer to Figure 2 Street lamp power supply 2 control circuit 1 includes transistor Q1, transistor Q2 and capacitor C1, the input of transistor Q2 is electrically connected with the dimmer 4 of external device Dimming signal output end, the output of transistor Q2 is electrically connected with one end of capacitor C1 and the input of transistor Q1 respectively, the output of transistor Q1 is electrically connected with street lamp power supply 2.
[0051] Please refer to Figure 2 Further include voltage dividing unit, the input of transistor Q2 is electrically connected with the dimmer 4 of external device Dimming signal output end through voltage dividing unit.
[0052] Please refer to Figure 2 Voltage dividing unit includes resistance R4 and resistance R5, one end of resistance R4 is electrically connected with the dimmer 4 of external device Dimming signal output end, the other end of resistance R4 is electrically connected with one end of resistance R5 and the input of transistor Q2 respectively, the other end of resistance R5 is grounded.
[0053] Please refer to Figure 2 Further include resistance R3, the input of transistor Q1 is electrically connected with one end of capacitor C1 and the output of transistor Q2 respectively through resistance R3.
[0054] Please refer to Figure 2 Further include resistance R2, one end of resistance R2 is connected with 5V power supply, the other end of resistance R2 is electrically connected with the output of transistor Q2, one end of capacitor C1 and the input of transistor Q1 respectively.
[0055] Please refer to Figure 2Further comprising a diode D1, the cathode of the diode D1 is electrically connected with one end of the resistor R2 and the cathode of the diode D1 is grounded, the anode of the diode D1 is electrically connected with the other end of the resistor R2, the output end of the transistor Q2, one end of the capacitor C1 and the input end of the transistor Q1 respectively.
[0056] Please refer to Figure 2 Further comprising a resistor R1, one end of the resistor R1 is electrically connected with the output end of the transistor Q1 and the street lamp power supply 2 respectively.
[0057] Please refer to Figure 2 The transistor Q1 and the transistor Q2 are both triodes.
[0058] The base of the transistor Q1 is electrically connected with one end of the capacitor C1 and the collector of the transistor Q2 respectively, the emitter of the transistor Q1 is grounded, and the collector of the transistor Q1 is electrically connected with the street lamp power supply 2.
[0059] The base of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer 4, the collector of the transistor Q2 is electrically connected with one end of the capacitor C1 and the base of the transistor Q1 respectively, and the emitter of the transistor Q2 is grounded.
[0060] Please refer to Figure 2 The transistor Q1 and the transistor Q2 are both MOS tubes.
[0061] The gate of the transistor Q1 is electrically connected with one end of the resistor R2, the anode of the diode D1, one end of the capacitor C1 and the drain of the transistor Q2 respectively, the source of the transistor Q1 is grounded, and the drain of the transistor Q1 is electrically connected with the street lamp power supply 2.
[0062] The gate of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer 4, the drain of the transistor Q2 is electrically connected with one end of the resistor R2, the anode of the diode D1, one end of the capacitor C1 and the gate of the transistor Q1 respectively, and the source of the transistor Q2 is grounded.
[0063] The transistor Q1 and the transistor Q2 are both triodes as an example for analysis, and the working principle of the street lamp intelligent cloud box is as follows:
[0064] ① When the dimming signal (output by the dimming signal output end of the external dimmer 4) is a DAC signal, the voltage range of the output is 0-10V, and the requirement meets the control of the lamp from off to the brightest;
[0065] When the output voltage of the DAC signal is about 1V, after being divided by resistor R4 and resistor R5, the Ube voltage is lower than the conduction threshold of the transistor Q2, so that the transistor Q2 is cut off. The cut-off of the transistor Q2 makes the transistor Q1 conduct, so that the power supply driving control signal POWER_EN output by the power supply driving control end of the street lamp power supply 2 control circuit 1 is low, and the street lamp power supply 2 cannot be powered, so the street lamp power supply 2 is completely turned off;
[0066] When the output voltage of the DAC signal is greater than about 1V, after being divided by resistor R4 and resistor R5, the Ube voltage is higher than the conduction threshold of the transistor Q2, so that the transistor Q2 is turned on. The conduction of the transistor Q2 makes the transistor Q1 cut off, so that the power supply driving control signal POWER_EN output by the power supply driving control end of the street lamp power supply 2 control circuit 1 is high, and the street lamp power supply 2 is powered. At this time, when the output range of the DAC signal is 1V-10V, the street lamp is lit, and the brightness is determined by the DAC signal, and reaches the brightest value at 10V;
[0067] ②When the dimming signal is a PWM signal, the output duty cycle range is 1%-99%, and the demand meets the control of the lamp from off to the brightest;
[0068] When the PWM signal output is high, the amplitude is 10V, after being divided by resistor R4 and resistor R5, the Ube voltage is higher than the conduction threshold of the transistor Q2, so that the transistor Q2 is turned on. The conduction of the transistor Q2 makes the transistor Q1 cut off, so that the power supply driving control signal POWER_EN output by the power supply driving control end of the street lamp power supply 2 control circuit 1 is high, and the street lamp power supply 2 is powered;
[0069] When the PWM signal output is low, the Ube voltage is lower than the conduction threshold of the transistor Q2, so that the transistor Q2 is cut off. The 5V voltage charges the capacitor C1 through the resistor R2. During the charging process of the capacitor C1, the voltage of the capacitor C1 rises. When the rising voltage is still not enough to make the transistor Q1 conduct, the PWM signal outputs high again, so that the transistor Q1 conducts. The capacitor C1 discharges rapidly through the CE electrode of the transistor Q1, so that when the PWM signal next time outputs low, the capacitor C1 still cannot make the transistor Q1 conduct during the charging process, so that the power supply driving control signal POWER_EN output by the power supply driving control end of the street lamp power supply 2 control circuit 1 is high, and the street lamp power supply 2 is continuously powered;
[0070] Therefore, during the continuous output of the PWM signal, the power supply driving control signal POWER_EN output by the power supply driving control end of the street lamp power supply 2 control circuit 1 is high, and the street lamp power supply 2 is continuously powered;
[0071] When the PWM signal is not output, that is, the duty cycle is 0, that is, the output is always low, the Ube voltage is lower than the conduction threshold of the triode Q2, the triode Q2 is cut off, the triode Q2 is cut off, the triode Q1 is turned on, so that the power drive control signal POWER_EN output low level generated by the power drive control end of the street lamp power supply 2 control circuit 1, the street lamp power supply 2 is not powered, so the street lamp power supply 2 is completely closed.
[0072] In summary, the utility model provides a kind of street lamp wisdom cloud box, street lamp power control circuit is arranged in the street lamp wisdom cloud box, the input of street lamp power control circuit is electrically connected with the dimming signal output end of the dimmer of external device, so it can directly transmit the dimming signal generated by the dimming signal output end of dimmer to street lamp power control circuit, and the power drive control end of street lamp power control circuit is electrically connected with street lamp power supply and generates power drive control signal to drive street lamp power supply, so it can close street lamp power supply, can only use dimming signal to realize the complete closing of street lamp power supply, so it is not necessary to additionally increase a control signal to control street lamp power supply, and also need not select the open voltage should be higher than the lamp of driving power supply residual voltage.
[0073] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation, direct or indirect application in related technical field using the contents of the utility model specification and drawings is also included in the patent protection range of the utility model.
Claims
1. A street light smart cloud box, characterized in that, The street lamp power supply control circuit is arranged in the street lamp intelligent cloud box, an input end of the street lamp power supply control circuit is electrically connected with a dimming signal output end of an external dimmer to receive a dimming signal of the dimmer, a power supply driving control end of the street lamp power supply control circuit is electrically connected with an external street lamp power supply, and the power supply driving control end of the street lamp power supply control circuit outputs a power supply driving control signal to the street lamp power supply to turn off the street lamp power supply.
2. The street light smart cloud box according to claim 1, wherein, The street lamp power supply control circuit comprises a transistor Q1, a transistor Q2 and a capacitor C1, an input end of the transistor Q2 is electrically connected with a dimming signal output end of an external dimmer, an output end of the transistor Q2 is electrically connected with one end of the capacitor C1 and an input end of the transistor Q1 respectively, and an output end of the transistor Q1 is electrically connected with a street lamp power supply.
3. The street light smart cloud box according to claim 2, wherein, The street lamp power supply control circuit further comprises a voltage dividing unit, and the input end of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer through the voltage dividing unit.
4. The street light smart cloud box according to claim 3, wherein, The voltage dividing unit comprises a resistor R4 and a resistor R5, one end of the resistor R4 is electrically connected with the dimming signal output end of the external dimmer, the other end of the resistor R4 is electrically connected with one end of the resistor R5 and the input end of the transistor Q2 respectively, and the other end of the resistor R5 is grounded.
5. The street light smart cloud box of claim 2, wherein, The street lamp power supply control circuit further comprises a resistor R3, and the input end of the transistor Q1 is electrically connected with one end of the capacitor C1 and the output end of the transistor Q2 through the resistor R3. 6.The smart street light cloud box of claim 2, wherein, The street lamp power supply control circuit further comprises a resistor R2, one end of the resistor R2 is connected with a 5V power supply, and the other end of the resistor R2 is electrically connected with the output end of the transistor Q2, one end of the capacitor C1 and the input end of the transistor Q1 respectively. 7.The smart street light cloud box of claim 6, wherein, The street lamp power supply control circuit further comprises a diode D1, a cathode of the diode D1 is electrically connected with one end of the resistor R2 and grounded, and an anode of the diode D1 is electrically connected with the other end of the resistor R2, the output end of the transistor Q2, one end of the capacitor C1 and the input end of the transistor Q1 respectively.
8. The street light smart cloud box of claim 2, wherein, The street lamp power supply control circuit further comprises a resistor R1, one end of the resistor R1 is electrically connected with the output end of the transistor Q1 and the street lamp power supply respectively.
9. The street light smart cloud box of claim 2, wherein, The transistor Q1 and the transistor Q2 are both triodes. The base of the transistor Q1 is electrically connected with one end of the capacitor C1 and the collector of the transistor Q2 respectively, the emitter of the transistor Q1 is grounded, and the collector of the transistor Q1 is electrically connected with the street lamp power supply. The base of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer, the collector of the transistor Q2 is electrically connected with one end of the capacitor C1 and the base of the transistor Q1 respectively, and the emitter of the transistor Q2 is grounded.
10. The street light smart cloud box of claim 2, wherein, The transistor Q1 and the transistor Q2 are both MOS transistors. The gate of the transistor Q1 is electrically connected with one end of the resistor R2, the anode of the diode D1, one end of the capacitor C1 and the drain of the transistor Q2 respectively, the source of the transistor Q1 is grounded, and the drain of the transistor Q1 is electrically connected with the street lamp power supply. The gate of the transistor Q2 is electrically connected with the dimming signal output end of the external dimmer, the drain of the transistor Q2 is electrically connected with one end of the resistor R2, the anode of the diode D1, one end of the capacitor C1 and the gate of the transistor Q1 respectively, and the source of the transistor Q2 is grounded.