DESC:FIELD OF INVENTION
[0001] The present disclosure relates to the field of solar light emitting diode (LED) street lighting control system and, more particularly relates to an intelligent hybrid street light management system.
BACKGROUND OF THE INVENTION
[0002] With a global push for reducing carbon footprint various systems and methods for efficiently harnessing alternative sources of energy has gained pace. One of these alternative systems and methods is the use of solar energy for supplying power to commercial as well as residential places.
[0003] One of the systems powered by solar energy is a street lighting system. Generally, solar powered street lighting system is centralized for better control and management of LED street lights. However, due to unavailability of sun in night, in winter or rainy season, or accumulation of dirt over photovoltaic (PV) panel, supply of solar energy is hindered and an alternative source of power is required to power such solar powered street lights. The above mentioned problem is addressed by providing a rechargeable battery connected with each street light of the centralized system. Each rechargeable battery is charged by solar energy and in absence of sun, each street light is powered by the charge stored in the rechargeable battery.
[0004] These rechargeable batteries can power the street lights during winter or rainy season, or at night. However, these batteries can provide power back up only for a limited amount of time, approximately 8-12 hrs, depending upon state of charge (SoC) of the battery. Thus, there exists a need of a system for managing power requirement of solar powered street lights. The system which supplies power to the street lights primarily from solar panels, and in absence of solar power, supplies power from a grid. Additionally, the system must be capable of charging rechargeable batteries connected to the street lights from both solar and grid. Moreover, the system must be provided with bi-directional meter, to minimize electricity bill charged on the grid supply, while making money by feeding solar energy to the grid.
[0005] One of such systems is disclosed in Chinese (CN) patent publication no. 103987161. The CN patent publication describes an intelligent type wind solar complementary solar LED street lamp control system. The intelligent type wind solar complementary solar LED street lamp control system comprises a system center, a centralized control layer comprising a plurality of centralized controllers and a single lamp control layer comprising a plurality of single lamp controllers. The intelligent type wind solar complementary solar LED street lamp control system integrates a control module and a communication module of a wind-solar complementary streetlamp and is used for managing the intelligent wind-solar complementary street lamp.
[0006] However, the Chinese patent publication fails to disclose charging of batteries for the street lights by grid supply, and a bi-directional meter for reducing electricity bill and earning money by feeding solar power to the grid.
[0007] Therefore, there exists a need for an intelligent hybrid street light management system that amicably addresses above disclosed deficiencies of the prior art.
OBJECTIVES OF THE INVENTION
[0008] An object of the present disclosure is to provide an intelligent hybrid street light management system that overcomes deficiencies of prior arts.
[0009] It is another object of the present disclosure to provide an intelligent hybrid street light management system, capable of using an existing centralized control module for street lights powered by solar energy only.
[0010] It is another object of the present disclosure to provide an intelligent hybrid street light management system, capable of using solar energy and grid supply to power streetlights and charge rechargeable batteries.
[0011] It is another object of the present disclosure to provide an intelligent hybrid street light management system including a bi-directional meter for reducing electricity bill, and making money by feeding solar energy to the grid.
[0012] It is another object of the present disclosure to provide an intelligent hybrid street light management system that includes Infrared (IR) sensors for detecting a movement in vicinity of a street light and increasing or decreasing an intensity of the street light accordingly.
[0013] These and other objectives and advantages of the present disclosure will 30 become more apparent when reference is made to the following description.

SUMMARY OF THE INVENTION
[0014] In accordance with an aspect of the present disclosure, an intelligent hybrid street light management system is disclosed. The intelligent hybrid street light management system comprises a centralized control module configured to control power supply to plurality of street lights, plurality of rechargeable batteries configured to provide power back-up to the plurality of street lights in case of power outage or no solar power, plurality of infrared (IR) sensors configured to detect movement in vicinity of the plurality of street lights, wherein at least one IR sensor is in electronic communication with at least one street light and the centralized control module, and a central server in wireless communication with the centralized control module, characterized in that the centralized control module manipulates intensity of light of at least one street light based on an input received from the central server.
[0015] In accordance with an embodiment of the present disclosure, at least one IR sensor provides a real-time detected movement to the centralized control module for manipulating intensity of at least one street light.
[0016] In accordance with an embodiment of the present disclosure, the centralized control module transmits the real-time detected movement to the central server to receive the input.
[0017] In accordance with another embodiment of the present disclosure, the centralized control module includes a processing unit, a memory and an in-built clock.
[0018] In accordance with another embodiment of the present disclosure, the processing unit configured to control power supply to plurality of street lights according to a set of instructions retrieved from the memory.
[0019] In accordance with another embodiment of the present disclosure, the in-built clock configured to periodically turn plurality of street lights ON/OFF.
[0020] In accordance with yet another embodiment of the present disclosure, plurality of battery management system (BMS) configured to manipulate charging of plurality of rechargeable batteries, wherein each BMS of each rechargeable battery of each street light is in electronic communication with the centralized control module.
[0021] In accordance with yet another embodiment of the present disclosure, each BMS of each rechargeable battery receives a real time value of temperature around the rechargeable battery by a temperature sensor.
[0022] In accordance with yet another embodiment of the present disclosure, upon breach of a pre-set temperature limit around the rechargeable battery the centralized control module sends a signal to the BMS to automatically stop charging of the rechargeable battery.
[0023] In accordance with yet another embodiment of the present disclosure, a bi-directional meter of each streetlight is configured to supply solar power to the grid.
[0024] In accordance with yet another embodiment of the present disclosure, a multimedia device in remote communication with the central server to provide a location of nearest street light the multimedia device to the central controller.
[0025] In accordance with yet another embodiment of the present disclosure, the multimedia device configured to provide a threshold value of power supply to plurality of street lights and plurality of rechargeable batteries, a time limit for tuning street lights ON/OFF, and a level of charge for charging the plurality of rechargeable batteries.
BRIEF DESCRIPTION OF DRAWINGS
[0026] Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
[0027] FIG.1 illustrates a Block diagram of an intelligent hybrid street light management system, in accordance with an embodiment of the present disclosure.
[0028] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.
DETAILED DESCRIPTION
[0029] It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the disclosure and are not intended to be restrictive thereof.
[0030] Reference in this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present technology. The appearance of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but no other embodiments.
[0031] Moreover, although the following description contains many specifics for the purposes of illustration, anyone skilled in the art will appreciate that many variations and/or alterations to said details are within the scope of the present technology. Similarly, although many of the features of the present technology are described in terms of each other, or in conjunction with each other, one skilled in the art will appreciate that many of these features can be provided independently of other features. Accordingly, this description of the present technology is set forth without any loss of generality to, and without imposing limitations upon, the present technology.
[0032] The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such process or method. Similarly, one or more devices or sub-systems or elements or structures proceeded by "comprises.. a" does not, without more constraints, preclude the existence of other devices or other sub-systems or other elements or other structures or additional devices or additional sub-systems or additional elements or additional structures.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The method, system, and examples provided herein are illustrative only and not intended to be limiting.
[0034] The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items. Further, the term sterile barrier and sterile adapter denotes the same meaning and may be used interchangeably throughout the description.
[0035] The present disclosure relates to an intelligent hybrid street light management system 100 as illustrated in Fig. 1. The intelligent hybrid street light management system 100 is capable of electronically connecting with an existing centralized control module 105 for plurality of street lights L1, L2…Ln, powered by solar energy only. Further, intelligent hybrid street light management system 100 is capable of powering street lights by supplying power from a grid 165, when supply of solar energy is limited or not available, for a long duration, such as in event of rain, cloudy sky or technical problem with PV panel 175.
[0036] In an embodiment of the present disclosure, the intelligent hybrid street light management system 100 is capable of charging each rechargeable battery electronically connected to each street light, by supplying power from the grid 165 or a PV panel 175 or both, depending upon availability of power supply from the grid or the PV panel, and state of charge (SoC) of the rechargeable battery.
[0037] In a preferred embodiment of the present disclosure, the intelligent hybrid street light management system 100 of the present disclosure comprises a centralized control module 105 configured to control power supply to plurality of street lights L1, L2…Ln, plurality of rechargeable batteries B1, B2…Bn configured to provide power back-up to the plurality of street lights L1, L2…Ln in case of power outage or no solar power, plurality of infrared (IR) sensors I1, I2…In configured to detect movement in vicinity of the plurality of street lights L1, L2…Ln, wherein at least one IR sensor is in electronic communication with at least one street light and the centralized control module 105, and a central server 115 in wireless communication with the centralized control module 105, characterized in that the centralized control module 105 manipulates intensity of light of at least one street light based on an input received from the central server 115.
[0038] The plurality of street lights L1, L2…Ln of the present disclosure are light emitting diodes (LED). The plurality of street lights L1, L2…Ln are capable of being power by the rechargeable batteries B1, B2…Bn in case of a power outage or no power supply from PV panel. Each rechargeable battery is provided with a battery management system (BMS) and a temperature sensor, wherein each temperature sensor is in electronic communication with the respective BMS.
[0039] In an embodiment of the present disclosure, the plurality of battery management systems S1, S2…Sn is configured to manipulate charging of plurality of rechargeable batteries B1, B2…Bn, wherein each BMS of each rechargeable battery of each street light is in electronic communication with the centralized control module 105. The plurality of temperature sensors T1, T2…Tn are provided for detecting temperature in vicinity of the plurality of rechargeable batteries. The temperature input received by the plurality of temperature sensors T1, T2…Tn enables the centralized control module to turn the street lights ON/OFF, for example in case of rains, or cloudy environment.
[0040] In an embodiment of the present disclosure, each BMS S1, S2…Sn of each rechargeable battery of plurality of rechargeable batteries B1, B2…Bn receives a real time value of temperature around rechargeable battery by plurality of temperature sensors T1, T2…Tn. The centralized control module 105 monitors the temperature of each rechargeable battery and sends a signal to a BMS to increase or decrease or stop charging of the rechargeable battery of the street light. In an embodiment of the present disclosure, upon breach of a pre-set temperature limit around the rechargeable battery, the centralized control module 105 sends a signal to a BMS to automatically stop charging of the connected rechargeable battery.
[0041] The rechargeable batteries B1, B2…Bn of the intelligent hybrid street light management system 100 can be a lead-acid battery or a lithium-ion battery or a hydrogen battery or a sodium battery. Further, the intelligent hybrid street light management system 100 includes a digital warranty for each rechargeable battery. In another embodiment of the present disclosure, the digital warranty is activated once the individual rechargeable battery is connected to the intelligent hybrid street light management system.
[0042] In an embodiment of the present disclosure, the intelligent hybrid street light management system 100 includes a bi-directional meter 180 for each streetlight and configured to supply solar power to the grid 165. The system 100 capable of supplying excess solar energy generated by the PV panel 175 on the grid 165 in order to minimize electricity bill and generate money.
[0043] In an embodiment, the system capable of supplying excess solar energy generated by the PV panel 175 on the grid in order to minimize electricity bill and generate money.
[0044] The system 100 includes plurality of infrared (IR) sensors I1, I2…In. Each IR sensor is installed with each LED street light. Where depending upon detection of movement around a street light by the IR sensor, the intensity of the street light is increased by the centralized control module 105. The intensity of the street lights is increased by either increasing the amount of current or supplying a higher voltage.
[0045] In an embodiment of the present disclosure, I1, I2…In at least one IR sensor provides a real-time detected movement to the centralized control module 105 for manipulating intensity of at least one street light. However, in case no movement is detected around the street light, the street light remains in sleep mode, to save power.
[0046] The centralized control module 105 includes a processing unit 125, a memory 135, and an in-built clock 145. The processing unit 125 configured to control power supply to plurality of street lights L1, L2…Ln according to a set of instructions retrieved from the memory 135. The memory is hard-drive or hard disk and the set of instructions are stored at the memory 135.
[0047] In an embodiment of the present disclosure, the in-built clock 145 configured to periodically turn plurality of street lights L1, L2…Ln ON/OFF. The in-built clock 145 is programmed to turn ON/OFF street lights depending upon day/night and change of seasons. The in-build clock system can be a digital or analogous clock.
[0048] The in-built clock function facilitates minimizing un-necessary usage of solar energy from the PV panel 175 or grid supply 165.
[0049] In another embodiment of the present disclosure, wherein each function of the intelligent hybrid street light management system 100 is monitored and managed by the central server 115.
[0050] In an embodiment, the central server manages each function of the intelligent hybrid street light management system 100 is based on an algorithm running on the central server 115.
[0051] In an another embodiment, the rechargeable battery can be used in electric vehicles and commercial spaces.
[0052] In yet another embodiment of the present disclosure, the central server 115 is in wireless connection with an application running on a multimedia device 155 of a user, wherein the user can monitor and accordingly set a threshold value of power supply from the grid 165 or PV panel 175 to each street light and its associated battery, a time limit for turning ON/OFF street lights, and a level up to which the battery of each street light can be charged from the grid 165 or PV panel 175 and provide location of nearest LED street light to the multimedia device 155 of the user.
[0053] The multimedia device 155 can be selected from a group consisting of smartphone, tablet, kiosk, laptop or the like.
[0054] In another embodiment of the present disclosure, a digital warranty is activated once the individual rechargeable battery is connected to the intelligent hybrid street light management system 100. The digital warranty is advantageous in case of service or repair.
[0055] Numerous modifications and adaptations of the system of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the true spirit and scope of this invention.
Advantages:
[0056] The of the present disclosure has various advantages including but not limited to –
1. The street lights provide light even in case of power outage, or no solar power due to clouds, winter or rain, as they are powered by the rechargeable batteries.
2. The street lights are able to illuminate areas with heavy movement, appreciably, at night.
Industrial Applicability:
[0057] The method of the present disclosure has wide application in field of high security areas such as military installations, research and development installations, malls etc.
[0058] The foregoing descriptions of specific embodiments of the present technology have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present technology to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present technology and its practical application, to thereby enable others skilled in the art to best utilize the present technology and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present technology.
List of reference numerals:
S. No. Items Reference Numeral
1 Intelligent hybrid street light management system 100
2 Centralized Control module 105
3 Street Lights L1, L2…Ln
4 Rechargeable Batteries B1, B2…Bn
5 Infrared Sensors I1, I2…In
6 Central server 115
7 Processing unit 125
8 Memory 135
9 In-built Clock 145
10 Battery management systems S1, S2…Sn
11 Temperature sensors T1, T2…Tn
12 Multimedia device 155
13 Grid/Mains power supply 165
14 Solar/PV panel 175
15 Bi-directional meter 180 ,CLAIMS:WE CLAIM:

1. An intelligent hybrid street light management system (100) comprising:
a centralized control module (105) configured to control power supply to plurality of street lights (L1, L2…Ln);
plurality of rechargeable batteries (B1, B2…Bn) configured to provide power back-up to the plurality of street lights (L1, L2…Ln) in case of power outage or no solar power;
plurality of infrared (IR) sensors (I1, I2…In) configured to detect movement in vicinity of the plurality of street lights (L1, L2…Ln), wherein at least one IR sensor is in electronic communication with at least one street light and the centralized control module (105); and
a central server (115) in wireless communication with the centralized control module (105), characterized in that the centralized control module (105) manipulates intensity of light of at least one street light based on an input received from the central server (115).
2. The intelligent hybrid street light management system (100) as claimed in claim 1, wherein at least one IR sensor provides a real-time detected movement to the centralized control module (105) for manipulating intensity of at least one street light.
3. The intelligent hybrid street light management system (100) as claimed in claims 1 and 2, wherein the centralized control module (105) transmits the real-time detected movement to the central server to receive the input.
4. The intelligent hybrid street light management system (100) as claimed in claim 1, wherein the centralized control module (105) includes a processing unit (125), a memory (135) and an in-built clock (145).
5. The intelligent hybrid street light management system (100) as claimed in claim 4, wherein the processing unit (125) configured to control power supply to plurality of street lights (L1, L2…Ln) according to a set of instructions retrieved from the memory (135).
6. The intelligent hybrid street light management system as claimed in claim 4, wherein the in-built clock (145) configured to periodically turn plurality of street lights (L1, L2…Ln) ON/OFF.
7. The intelligent hybrid street light management system (100) as claimed in claim 1, wherein plurality of battery management systems (BMS) configured to manipulate charging of plurality of rechargeable batteries (B1, B2…Bn), wherein each BMS of each rechargeable battery of each street light is in electronic communication with the centralized control module (105).
8. The intelligent hybrid street light management system (100) as claimed in claim 7, wherein each BMS (S1, S2…Sn) of each rechargeable battery of plurality of rechargeable batteries (B1, B2…Bn) receives a real time value of temperature around rechargeable battery by plurality of temperature sensors (T1, T2…Tn).
9. The intelligent hybrid street light management system (100) as claimed in claim 7 and 8, wherein upon breach of a pre-set temperature limit around the rechargeable battery, the centralized control module (105) sends a signal to BMS to automatically stop charging of the connected rechargeable battery.
10. The intelligent hybrid street light management system (100) as claimed in claim 1, wherein a bi-directional meter (180) of each streetlight is configured to supply solar power to the grid (165).
11. The intelligent hybrid street light management system (100) as claimed in claim 1, wherein a multimedia device (155) in remote communication with the central server (125) to provide a location of nearest street light of the multimedia device (155) to the central server (125).
12. The intelligent hybrid street light management system (100) as claimed in claim 11, wherein the multimedia device (155) configured to provide a threshold value of power supply to plurality of street lights (L1, L2…Ln) and plurality of rechargeable batteries (B1, B2…Bn), a time limit for tuning street lights ON/OFF, and a level of charge for charging the plurality of rechargeable batteries (B1, B2…Bn).