Security and protection lamp powered by double energy sources

Abstract

The utility model provides a dual-energy power supply security lamp. The dual-energy power supply security lamp comprises a lamp; the storage battery part is connected with the lamp through a first power supply line; the AC power supply part is connected with the lamp through a second power supply line; the clean energy unit is connected with the storage battery part and charges the storage battery part; the control switch unit comprises a first control switch and a second control switch, the first control switch is arranged on the first power supply line, and the second control switch is arranged on the second power supply line; and the control part is respectively connected with the lamp, the storage battery part, the AC power supply part and the control switch unit, and is used for switching the power supply mode of the lamp and adjusting the PWM duty ratio. Therefore, the battery is intelligently and preferentially selected to supply power, the electricity utilization cost brought by the mains supply is saved, and when the battery power supply is detected, the luminous flux can be reduced in stages, and the purpose of increasing the cruise of the battery is achieved.

Description

Technical Field

[0001] This application relates to the technical field of security lights, and particularly to a security light with dual - energy power supply. Background Art

[0002] Road traffic signal lights are a category of traffic safety products. They are an important tool for strengthening road traffic management, reducing traffic accidents, improving road use efficiency, and improving traffic conditions. They are applicable to intersections such as crossroads and T - intersections, and are controlled by a road traffic signal controller to guide vehicles and pedestrians to pass safely and orderly.

[0003] However, there are still many problems with existing security lights, including: (1) Single power supply method: Currently, there are two power supply methods in the market, AC power supply and battery power supply. AC power supply has specific requirements for the installation location of the device and must have an AC power interface; although battery power supply is relatively convenient to install, it is greatly limited by the battery life problem.

[0004] (2) Lack of energy intelligent switching function: A few products are designed to be compatible with both AC power supply and battery power supply, but when users use them, they can only choose one power supply method according to the installation environment and cannot switch to another power supply mode midway. Utility Model Content

[0005] In order to solve the above - mentioned technical problems, this application proposes a security light with dual - energy power supply, including:

[0006] A lamp;

[0007] A battery unit, connected to the lamp through a first power supply line;

[0008] An AC power supply unit, connected to the lamp through a second power supply line;

[0009] A clean - energy unit, connected to the battery unit and charging the battery unit;

[0010] A control switch unit, including a first control switch and a second control switch. The first control switch is arranged on the first power supply line, and the second control switch is arranged on the second power supply line;

[0011] A control unit, connected to the lamp, the battery unit, the AC power supply unit, and the control switch unit respectively, and switching the power supply mode of the lamp and adjusting the PWM duty cycle.

[0012] By detecting the voltage value of the battery, the battery power state is judged. When the power state can meet the working requirements, the battery power supply is preferentially used to save the electricity cost brought by the mains power supply. When the battery is in a low - power situation, in order to prevent the reduction of the battery life caused by battery discharge, it is timely switched to the AC power supply mode.

[0013] Preferably, the clean energy unit includes: a solar panel or a wind power generation device. Depending on different meteorological environments, the solar panel can be used alone for power supply or wind power generation, or both solar power generation and wind power generation can be used simultaneously.

[0014] Preferably, the control unit controls the on / off of the control switch unit according to the output voltage V 1 of the battery unit. Specifically, it includes: when V 1 > V min , the first control switch closes and the second control switch opens. At this time, the battery unit supplies power alone; when V 1 < V min , the first control switch opens and the second control switch closes. The AC power supply unit supplies power alone; where V min is the minimum turn-off voltage set for the battery unit.

[0015] Preferably, the control unit controls the on / off of the control switch unit according to the battery power percentage Q 1 of the battery unit. Specifically, it includes: when Q < Q 1 , the second control switch closes and the first control switch opens. At this time, the AC power supply unit supplies power alone; when Q > Q 1 , the first control switch closes and the second control switch opens. At this time, the battery unit supplies power alone; where Q is the minimum power percentage set for the battery unit.

[0016] Through the above technical solutions, the RGB color adjustment can be achieved only by multiple groups of LED light sources, and the white light color temperatures after color mixing can be changed along the CIE blackbody locus line. And by reducing the number of light sources, the circuit design is streamlined, the use of materials is reduced, the production efficiency can be improved simultaneously, and contributions can be made to energy conservation and emission reduction.

[0017] Preferably, when the battery unit supplies power alone, the control unit adjusts the PWM duty cycle according to the output voltage V 1 of the battery unit. Specifically, the PWM duty cycle decreases as V 1 decreases.

[0018] Preferably, when the battery unit supplies power alone, the control unit adjusts the PWM duty cycle according to the battery power percentage Q 1 of the battery unit. Specifically, the PWM duty cycle decreases as Q 1 decreases.

[0019] Preferably, when the AC power supply unit supplies power alone or when switching from the battery unit supplying power alone to the AC power supply unit supplying power, the PWM duty cycle output by the control unit is adjusted to a preset PWM duty cycle.

[0020] Preferably, Q 1When Q = 100%, the PWM duty cycle is 100%, and at this time, the light output flux level of the lamp is 1800 lm; when Q 1 > 80%, the PWM duty cycle is 80%, and at this time, the light output flux level of the lamp is 1440 lm; when 60% < Q 1 < 80%, the PWM duty cycle is 60%, and at this time, the light output flux level of the lamp is 1080 lm; when 40% < Q 1 < 60%, the PWM duty cycle is 40%, and at this time, the light output flux level of the lamp is 720 lm; when 20% < Q 1 < 40%, the PWM duty cycle is 20%, and at this time, the light output flux level of the lamp is 320 lm.

[0021] Preferably, when 4.0V < V 1 ≤ 4.2V, the PWM duty cycle is 100%, and at this time, the light output flux level of the lamp is 1800 lm; when 3.8V < V 1 ≤ 4.0V, the PWM duty cycle is 80%, and at this time, the light output flux level of the lamp is 1440 lm; when 3.6V < V 1 ≤ 3.8V, the PWM duty cycle is 60%, and at this time, the light output flux level of the lamp is 1080 lm; when 3.4V < V 1 ≤ 3.6V, the PWM duty cycle is 40%, and at this time, the light output flux level of the lamp is 720 lm; when 3.0V < V 1 ≤ 3.4V, the PWM duty cycle is 20%, and at this time, the light output flux level of the lamp is 320 lm.

[0022] It is achieved by gradually reducing the light flux to increase the battery's endurance.

[0023] Compared with the prior art, the beneficial effects of this application are as follows:

[0024] 1. It integrates AC power supply and battery power supply methods, and users can make diverse selections according to actual needs.

[0025] 2. By detecting the battery voltage through the MCU, it can intelligently and preferentially select battery power supply to save the electricity cost brought by the mains power;

[0026] 3. When battery power supply is detected, it can achieve a gradual reduction in light flux to increase the battery's cruising range;

[0027] 4. When powered by AC, it can be adjusted to the normal mode according to the APP settings according to actual needs. Description of the Drawings

[0028] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate the embodiments and, together with the description, are used to explain the principles of the present application. Other embodiments and many of the intended advantages of the embodiments will be readily apparent as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. Like reference numerals refer to corresponding like parts.

[0029] Figure 1 is a schematic structural diagram of a security lamp powered by dual energy sources according to an embodiment of the present application. Detailed implementation manners

[0030] In the following detailed description, reference is made to the accompanying drawings which form a part of the detailed description and in which are shown illustrative specific embodiments in which the present application may be practiced. To this end, directional terms such as "top", "bottom", "left", "right", "upper", "lower", etc. are used with reference to the orientation of the described figures. Since the components of the embodiments can be positioned in several different orientations, the directional terms are used for purposes of illustration and are in no way limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

[0031] Figure 1 is a schematic structural diagram of a security lamp powered by dual energy sources according to an embodiment of the present application, as Figure 1 shown, a security lamp powered by dual energy sources includes:

[0032] a lamp;

[0033] a battery unit, connected to the lamp through a first power supply line;

[0034] an AC power supply unit, connected to the lamp through a second power supply line;

[0035] a clean energy unit, connected to the battery unit and charging the battery unit;

[0036] a control switch unit, including a first control switch and a second control switch, the first control switch is arranged on the first power supply line, and the second control switch is arranged on the second power supply line;

[0037] a control unit, respectively connected to the lamp, the battery unit, the AC power supply unit and the control switch unit, and switching the power supply mode of the lamp and adjusting the PWM duty cycle.

[0038] Specifically, according to different physical quantities detected by the control unit, the present application can be divided into: (1) The control unit determines according to the output voltage V of the battery unit 1The magnitude controls the on / off of the control switch unit, specifically including: when V 1 > V min , the first control switch closes and the second control switch opens, and at this time the battery unit supplies power alone; when V 1 < V min , the first control switch opens and the second control switch closes, and the AC power supply unit supplies power alone; where V min is the minimum turn-off voltage set for the battery unit. (2) The control unit controls the on / off of the control switch unit according to the battery power percentage Q 1 of the battery unit, specifically including: when Q < Q 1 , the second control switch closes and the first control switch terminal opens, and at this time the AC power supply unit supplies power alone; when Q > Q 1 , the first control switch closes and the second control switch opens, and at this time the battery unit supplies power alone; where Q is the minimum power percentage set for the battery unit.

[0039] To overcome the problem of short battery-powered endurance time, the control unit adjusts the PWM duty cycle according to the output voltage V 1 of the battery unit or the battery power percentage Q 1 of the battery unit, that is, by following the decrease of the output voltage V 1 of the battery unit or the battery power percentage Q 1 , while lowering the PWM duty cycle, so as to extend the endurance time of the battery unit.

[0040] In addition, when the battery unit supplies power alone, if it is detected that the current meteorological conditions are sufficient, the clean energy unit will quickly charge the battery unit, so that the battery unit reaches the operable voltage faster, thus saving a large amount of mains electricity costs.

[0041] To better understand the technical means of this application, it is further illustrated below through two embodiments;

[0042] Embodiment 1:

[0043] When the battery unit is fully charged, the output voltage V 1 = 4.2V, and V min is set to 3.0V. At this time, the specific method for the control unit to adjust the PWM duty cycle of the lamp is: when 4.0V < V 1 ≤ 4.2V, the PWM duty cycle is 100%, and at this time the lamp output luminous flux level is the 1800lm level; when 3.8V < V 1 ≤ 4.0V, the PWM duty cycle is 80%, and at this time the lamp output luminous flux level is the 1440lm level; when 3.6V < V 1 ≤ 3.8V, the PWM duty cycle is 60%, and at this time the lamp output luminous flux level is the 1080lm level; when 3.4V < V1 When the voltage is ≤ 3.6V, the PWM duty cycle is 40%, and the light flux output level of the lamp is 720 lm at this time; when 3.0V < V 1 ≤ 3.4V, the PWM duty cycle is 20%, and the light flux output level of the lamp is 320 lm at this time.

[0044] Embodiment 2:

[0045] When the battery in the battery unit is fully charged, the battery power percentage Q 1 = 100%. Set Q to 10%. The specific method for the control unit to adjust the PWM duty cycle of the lamp is as follows: when Q 1 = 100%, the PWM duty cycle is 100%, and the light flux output level of the lamp is 1800 lm at this time; when Q 1 > 80%, the PWM duty cycle is 80%, and the light flux output level of the lamp is 1440 lm at this time; when 60% < Q 1 < 80%, the PWM duty cycle is 60%, and the light flux output level of the lamp is 1080 lm at this time; when 40% < Q 1 < 60%, the PWM duty cycle is 40%, and the light flux output level of the lamp is 720 lm at this time; when 20% < Q 1 < 40%, the PWM duty cycle is 20%, and the light flux output level of the lamp is 320 lm at this time.

[0046] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalent forms, the present application also aims to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. A dual energy powered security lamp, characterized in that: include: Lighting; A storage battery unit connected to the lamp via a first power supply line; An AC power supply unit connected to the lamp via a second power supply line; A clean energy unit connected to the battery unit and charging the battery unit; A control switch unit, comprising a first control switch and a second control switch, wherein the first control switch is arranged on the first power supply line, and the second control switch is arranged on the second power supply line; The control unit is respectively connected to the lamp, the battery unit, the AC power supply unit and the control switch unit, and switches the power supply mode of the lamp and adjusts the PWM duty cycle.

2. A dual-energy powered security light according to claim 1, characterized in that: The clean energy unit includes: a solar panel or a wind power generation device.

3. A dual-energy powered security light according to claim 2, characterized in that: The control unit controls the on-off of the control switch unit according to the magnitude of the output voltage V1 of the battery unit, specifically including: when V1>V min When V1<V min When the first control switch is opened, the second control switch is closed, and the AC power supply unit supplies power alone; wherein V min A minimum shutdown voltage is set for the battery section.

4. A dual-energy powered security light according to claim 2, characterized in that: The control unit controls the on and off of the control switch unit according to the battery power percentage Q1 of the battery unit, specifically including: when Q<Q1, the second control switch is closed and the first control switch is opened, and the AC power supply unit is powered alone; when Q>Q1, the first control switch is closed and the second control switch is opened, and the battery unit is powered alone; wherein Q is the minimum power percentage set for the battery unit.

5. The dual-energy powered security light according to claim 3, characterized in that: When the battery unit is supplying power alone, the control unit adjusts the PWM duty cycle according to the magnitude of the output voltage V1 of the battery unit. Specifically, the PWM duty cycle decreases as V1 decreases.

6. A dual-energy powered security light according to claim 4, characterized in that: When the storage battery unit is powered alone, the control unit adjusts the PWM duty cycle according to the battery power percentage Q1 of the storage battery unit. Specifically, the PWM duty cycle decreases as Q1 decreases.

7. A dual-energy powered security light according to claim 5 or 6, characterized in that: When the AC power supply unit supplies power alone or switches from supplying power alone by the battery unit to supplying power by the AC power supply unit, the PWM duty ratio output by the control unit is adjusted to a preset PWM duty ratio.

8. The dual-energy powered security light according to claim 6, characterized in that: When Q1=100%, the PWM duty cycle is 100%, and the output luminous flux of the lamp is 1800lm; when Q1>80%, the PWM duty cycle is 80%, and the output luminous flux of the lamp is 1440lm; when 60%<Q1<80%, the PWM duty cycle is 60%, and the output luminous flux of the lamp is 1080lm; When 40%<Q1<60%, the PWM duty cycle is 40%, and the output luminous flux of the lamp is 720lm; when 20%<Q1<40%, the PWM duty cycle is 20%, and the output luminous flux of the lamp is 320lm.

9. The dual-energy powered security light according to claim 5, characterized in that: When 4.0V<V1≤4.2V, the PWM duty cycle is 100%, and the output luminous flux of the lamp is 1800lm; when 3.8V<V1≤4.0V, the PWM duty cycle is 80%, and the output luminous flux of the lamp is 1440lm; when 3.6V<V1≤3.8V, the PWM duty cycle is 60%, and the output luminous flux of the lamp is 1080lm; when 3.4V<V1≤3.6V, the PWM duty cycle is 40%, and the output luminous flux of the lamp is 720lm; when 3.0V<V1≤3.4V, the PWM duty cycle is 20%, and the output luminous flux of the lamp is 320lm.

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