FEELD OF INVENTION
The present invention relates to a power system for backup with Multiple Sharing. More particularly, the present invention discloses a power source for backup with monitoring of multiple sharing of various communication networks on a single telecommunication tower.
BACKGROUND & PRIOR ART OF THE INVENTION
Traditionally, cellular base stations and towers were owned and operated by the service providers. However, today such towers are owned by third-party companies who are driven to operate the towers as efficiently and profitably as possible. To that end and to maximize profits, cellular towers often accommodate multiple service providers desiring coverage in a geographic area. However, there are physical capacity limits for cellular towers which limit the capacity of the towers in handling all the equipment for all possible service providers. Specifically, a greater number of service providers for a cell or cell sector have translated into additional equipment being loaded onto the tower. However, the physical tower loading must remain within desired parameters for the integrity of the tower. The physical capacity of the tower currently limits the ability to serve every interested service provider and therefore limits the revenue of the tower owners in selling their tower space to service providers.
Building more towers is not a desirable solution. In addition to the cost to build and maintain the tower, communities are starting to vigorously protest the location of such towers due to their unsightly addition to the landscape. This is particularly so in densely populated areas where more towers might be needed or coverage is particularly desired by the service provider.
Another revenue limiting issue for tower owners is that there is only one tower top. The most desirable position for a service provider is to be operating from RF link or microwave backhaul antennas positioned at or very close to the top of the tower. The
highest amount of revenue, or tower rent fees for a tower operator is generated by those service providers using equipment at the top of the tower. Those service providers with equipment located below the tower top will understandably only pay lesser fees.
Another particular concern for service providers is the shape and direction of their signal beams. Different providers have different requirements, thus putting a further burden on tower owners. Tower owners may provide specific beams to a service provider. Such an option is often expensive and usually requires additional equipment on the tower for that specific service provider. Furthermore, offering the service to one tower customer creates a desire by other tower customers requiring even more equipment and expense to maintain the customers.
Consequently, tower operators have various factors to consider as they sell their tower services to wireless service providers. Traditionally, the tower operators have worked to sell their tower space and to put as much equipment on a tower as they could physically accommodate. The tower owners would like to have every possible service provider on their towers. Of course, every service provider will desire the tower top location and special considerations, such as specific beam shapes or directions. As such, there exists a tension in the tower market due to limitations in the current technology which limits not only the revenues of the tower owner, but also the benefits to be received by a service provider.
Now, reference may be made to the following citations.
US patent no 7,043,270 relates to the system for sharing a cellular tower among multiple service providers. It comprises an antenna having an array of elements operable to define multiple, individual beams for signals in a communication frequency band and converter circuitry to convert the communication frequency band to a digital band. Filtering and signal processing circuitry define digital band portions
for at least two service providers and drive the antenna to define at least one individual beam for each individual service provider.
US patent no 6,925,312 is directed to a first radio base station and a second radio base station. They are co-located at a base station site and share the base station site's common antenna.
US publication no 20060038533 discloses a power system that is designed to provide reliable electrical power to a facility and specifically to a telecommunications facility. The system includes a number of proton exchange membranes (PEMs) adapted to provide DC power. The system is configured so that the PEMs receive fuel from a header that is supplied by a number of hydrogen generators.
Publication no WO/2008/070725 pertains to one subsystem of the power supply solution. It includes one or more proton exchange membrane type fuel cells and an energy storage device for storing DC electrical power produced by the fuel cells. Another subsystem includes one or more microturbine generators, one or more rectifiers for converting AC electrical power produced by the microturbine generators to DC electrical power and one or more proton exchange membrane type fuel cells for producing DC electrical power.
US patent no 7,436,079 and publication no 20080094868 pertain to a reliable, end-to-end power supply solution for components of a telecommunications network. It provides either a primary source or a backup source of electrical power at various telecommunications sites for reliable operation of telecommunications equipment. One subsystem of the power supply solution includes one or more proton exchange membrane type fuel cells and an energy storage device for storing DC electrical power produced by the fuel cells. Another subsystem includes one or more microturbine generators, one or more rectifiers for converting AC electrical power produced by the microturbine generators to DC electrical power and one or more proton exchange membrane type fuel cells for producing DC electrical power. The
power supply solution ensures that voice and data traffic is reliably handled by a telecommunications network in situations where commercial electric utilities fail to supply power at certain points along the network.
Reference may be made to an article by "Shanthi Kannan, The Hindu, May 02,2002". The article talks about the possibility of tying up with existing operators.
Reference may be made to an article by "K.Venkatasubramanian, Business Line, Feb 17, 2008". The article talks about a burgeoning subscriber base and a more stringent spectrum allocation regime. This may create a higher requirement of cell-sites or tower sites for the operators to accommodate more subscribers and allow greater reuse of the radio frequency allotted to operators. This is especially true in dense urban areas where finding space may not be easy. Infrastructure sharing could come to mobile operators' rescue in this context.
Reference may be made to an article by "Luminous Teleinfra, 15 Dec, 2008". The article talks about the revolutionary technology Energy Management and Backup Unit (EMBU) developed by Luminous Teleinfra. This is a combination of solar, wind, battery and diesel for energy usage, storage and management for BTS & BSC sites. These solutions of Luminous Teleinfra will prove to be a significant initiative in addressing energy related OPEX saving challenges of telecom operators and infrastructure companies. EMBU provides efficient energy management for single or multi operator BTS sites with or without air-conditioners. It provides line conditioning, power backup using battery and inverter and manages environmental parameters of the site in an intelligent and self learning manner to optimize the energy storage and usage there-by minimizing use of DG.
Reference may be made to an article by "Huawei Technologies Co., Ltd.". The article talks about fuel saving 50%, maintenance of diesel generator reducing 50%, and TCO saving 40% within three-year. Industry-leading diesel generator/battery scheduling strategy reduces the operating time and extends the diesel generator life 100%. The
system has specially designed deep cycle battery, recharge within short time, cycle life up to 2000 times under the 250C, 60% DOD (Depth of Discharge).Highly integrated IPS (Intelligent Hybrid-Power System) provide functions such as intelligent control, ACDB & lightning protection and easy to install and lower cost of site construction.
Reference may be made to an article by "Xantrax 2009". The article talks about next generation of inverter/charger to market, with the XW hybrid inverter/charger, the heart of the XW System. This Inverter/ charger is a true sine wave 120/240-volt AC, split-phase, inverter/ charger that incorporates a DC to AC inverter, a battery charger and an AC auto-transfer switch. It is the foundation for battery-based residential and commercial applications up to 18 kilowatts (kW). Capable of being grid-interactive or grid-independent, the XW can operate with generators and renewable energy sources to provide full-time or backup power.
Reference may be made to an article by "E-Power, 2008". The article talks about product which is highly reliable modular compact design, front access, easy installation & maintenance with remote monitoring options. It is an ideal product for telecom applications for BTS sites, small, medium, large telecom exchanges and for powering many telecom application based products.
Further, reference may be made to an article by "BSMC POWER Nigeria Limited, 2007". The article talks about INEX inverter series is an integrated Telecommunication Power System, including inverter, static switch, LCD display controller, and interface modules. With versatile "building block" design and N+l redundant configuration, the INEX inverter system facilitates complex telecommunication and industrial power demands and provides ultimate flexibility for your current and future power requirements. The DSP-microprocessing controller gives real-time system status through comprehensive LCD display and allows program settings through the display panel. With a communication interface module installed, you can further control and monitor the system remotely.
Reference may be made to an article by "Kisan Ratilal Choksey Shares and Securities Pvt. Ltd." which talks about telecom sharing model. This model is spearheaded by wireless telecom service providers (TSP) who are already providing telecom services. Here, an operator builds the tower as per specifications and acts as an anchor tenant. Then the operator allows other players to share the passive infrastructure. Some wireless service providers have hived off, or are in the process of hiving off their tower business into a separate subsidiary to increase operational efficiency and unlock value.
Thus, some of the conventional systems discuss about power backup system for telecommunication and some systems describe the multiple sharing of the telecommunication tower. As the cell site is shared by multiple operators, we need to monitor and control the energy consumption by multiple operators. Metering data needs to be sent to central NOC for billing, administration and control. No such system exists which gives a complete solution for the above two so that the billing of the telecommunication tower sharing multiple service provider can be monitored and controlled as per the priority.
Accordingly, there is a requirement for a power backup system which provides power to the telecommunication tower during mains failure with multiple sharing features.
The present invention provides a power source for power backup with multiple sharing features. The system provides cost effective and easy solution to monitor and control the billing and metering of telecommunication site(s)/ tower(s) which are shared by various service providers.
OBJECTS OF THE INVENTION
The Primary object of the present invention is to provide a power source for power backup with multiple sharing.
Another object of the present invention is to provide a power source for power backup with monitoring and controlling multiple sharing of various communication networks on a single telecommunication tower.
Still another object of the present invention is to provide a power backup system which monitors and controls the multiple sharing of various service providers on a single tower.
Yet another object of the present invention is to provide a power source for backup with multiple sharing which can monitor and control the billing/ metering of the telecommunication tower.
Another object is to provide a power backup system which provides multiple sharing of a single telecommunication tower through various service providers on the basis of priority.
Still another object of the present invention is to provide a power source for power backup which provides all the data of usage of telecommunication tower by various service providers to a central server at a remote location.
Yet another object of the present invention is to provide an improved power source and a control method which is efficiently operable, especially for non-linear, high harmonic content and/or unbalanced loads.
Another object of the present invention is to provide a power source for power backup which is cost effective.
Another object is to provide a power source for backup system with generator start/Stop/Control facility.
Yet another object of the present invention is to increase revenues by accommodating every potential service provider customer on the tower.
Another object of the present invention is to provide a power backup system which diagnoses the problem in the power backup system, for example the status of the battery, battery life, overload, short circuit, generator started etc. & sends an SMS to the telecom site operator for remedial action.
Yet another object of the present invention is to provide a power backup system which monitors all parameters of telecommunication site.
Still another object of the present invention is to provide a power backup system which commands the telecommunications sites from remote location.
Another object of the present invention is to provide a power backup system which provides energy metering solution for telecommunication sites.
Still another object of the present invention is to provide a power source for power backup with monitoring and controlling of multiple telecommunication towers.
SUMMARY OF THE INVENTION
The present invention provides a power source for backup with multiple sharing of various communication networks on a single telecommunication tower. Cellular towers are used to operate cell site/ BTS (base transceiver station) to provide extended coverage for mobile phone users. It is provided with an intelligent PIU (power interface unit) to provide electric power, supplied by EB (electricity board) to the BTS and also to various equipments available at cell site.
The present invention monitors & controls the multiple sharing of various service providers on a single tower and the billing/ metering system for that telecommunication tower. The multiple sharing of a single telecommunication tower
through various service providers is being carried out on the basis of priority. The priority is predefined as per the usage of any other such kind of factors.
In an embodiment of the present invention, the power backup system comprises a charger, AC-DC converter, an inverter section for generating the regulated AC output from the DC source, line conditioner, and a control section connected to the various modules for monitoring and controlling the operation of the system. A DC/DC converter supplies DC power to different modules and drivers of the system.
In another embodiment of the present invention, the priority is set on the basis of traffic or power drawn. The time is identified during which the traffic is high/ low relying on the fact of power withdrawn.
In still another embodiment of the present invention, a comparison report of the usage of various networks is generated and forwarded to the operator.
In yet another embodiment of the present invention, there is provision of additional generator start/stop/control facility.
In another embodiment of the present invention, the power backup system diagnoses the problem in the system, such as but not limited to the status of the battery, battery life, overload, short circuit, generator started, fuel status, temperature, input and output power quality etc. & sends a message to the telecom site operator for remedial action.
In still another embodiment of the present invention, the backup system monitors the status of each and every device to keep the cell site active.
In yet another embodiment of the present invention, the system provides energy metering by taking the data from the telecommunication sites itself.
In another embodiment of the present invention, the backup system keeps record of parameters such as but not limited to the DG diesel volume, rate of consumption, abnormal consumption detection, addition/ consumption report, low fuel level alarm, DG Failure, temperature of Engine, DG battery voltage, V-belt / fan belt cut, DG runtime. The system also records such as without limitation battery bank charge level, health status, voltage, current, temperature, estimated life, depth of discharge, cycle count & battery run-time.
In still another embodiment of the present invention, the backup system comprises smoke and fire detection system and raises an alarm during emergency conditions.
In yet another embodiment of the present invention, the backup system provides real time management using real time communication.
In yet another embodiment of the present invention, the coupling device provides various communication interfaces such as but not limited to RS232, RS485, RJ45, USB, Blue tooth, ZigBee etc
STATEMENT OF INVENTION
According to this invention, there is provided a power backup system with multiple sharing for providing power backup to telecommunication tower with monitoring of multiple sharing of various communication networks on a single telecommunication tower comprises a charger section, a DC/DC converter supplying DC power to different modules and drivers of the system, AC-DC converter, an inverter section for generating the regulated AC output from the DC source, line conditioner, alternative energy sources, a power storage bank and other equipments at telecom sites, metering unit and a control section connected to the various modules for monitoring and controlling the operation of the system as shown in fig.l.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawings and wherein:
Figure 1A and B shows the block diagram according to the present invention. Figure 2 shows the flow chart according to the present invention.
DETAIL DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING DRAWINGS:
Reference may be made to fig 1, which shows the block diagram of the invention. The present invention monitors & controls the multiple sharing of various service providers on a single tower and the billing/ metering system for that telecommunication tower. The power backup system comprises a charger, AC-DC converter, an inverter section for generating the regulated AC output from the DC source, line conditioner, a control section connected to the various modules for monitoring and controlling the operation of the system and a power storage bank of any type such as but not limited to lead acid battery, sealed maintenance free battery, tubular battery, fuel cell, other equipments such as but not limited to Power interface unit(PIU), coupling device, communication hardware, sensors for without limitation(temperature, humidity, motion, intrusion detector etc.) at telecom sites, and metering unit connected to the backup system as well as to the telecom tower. A DC/DC converter supplies DC power to different modules and drivers of the system.
The multiple sharing of a single telecommunication tower through various service providers is being carried out on the basis of priority. The priority is predefined as per the usage of any other such kind of factors. The data of usage of telecommunication tower by various service providers is sent to a central server at remote location.
According to one preferred embodiment of the present invention, the priority is set on the basis of traffic or power drawn. The time is identified during which the traffic is
high/ low relying on the fact of power withdrawn. The invention also works in auto mode i.e. it detects the amount of power consumed by the various networks. Based on the power consumption, it calculates the time of low/ high traffic of various networks and communicates it to the operator. Thus, the operator can identify the period of low traffic and utilize it for any other purpose or network. It checks for the predefined/user settable overload condition of the telecom signals and inform the operator about that. A warning is also sent to the particular network which is overloaded. This information is used for such as without limitation to the billing, information for operator, to identify the time when the traffic is low/ high. All these information are sent to the operator. A comparison report of the usage of various networks is generated and forwarded to the operator.
The system also provides energy metering by taking the data from the telecommunication sites itself. On a tower or multiple towers, each site/ network has its own metering device with inbuilt memory which records the parameters such as but not limited to the energy consumption of the telecommunication site/network /Service provider and communicates with the power backup system through wireless or wired media. Each metering device is provided with unique codes generated through the power backup system. The codes are also stored in the metering device as well as in the power backup system. Central NMS (Network management system) logs all metering information at a predefined time period. Metering information contains the power consumption (active/reactive) along with time stamp. It also collects the state and values of other sub-components but not limited to DG, EB, and Battery voltage. The inbuilt memory in smart meters stores data while there is a communication link failure between Power backup system and NMS. As soon as the link is established the log stored at power backup system is dump to the NMS. Through NMS user/operator can extract reports for all operators. The web access/portal to NMS provides facility to end user from cellular mobile operator to calculate the energy consumption. The user can club number of cell sites and extract the overall energy consumption. Web portal also provides the interface to calculate the energy expenditure with multiple currency support. Also the facility is provided to export, send and print the reports/bills.
An emergency power source such as but not limited to DG (Generator) is also connected through the backup system to start the DG automatically in case of AC mains failure. The present invention has additional generator start/stop/control facility. It forwards the command to the generator through a controller so as to optimize the use of the generator available & also to make sure that the telecom site operation goes on uninterrupted. Apart from DG, there are many other equipments such as but not limited to the air conditioners, aviation light, battery charging unit etc that are available in the cell site. The backup system monitors the status of each and every device to keep the cell site active. Other equipments also consume power and some of them are shared by all tenants available at site. Power backup system monitors that and logs it to central Network management system (NMS). The invention monitors all the parameters of the telecommunication site. The user/ operator gives command to the telecommunication site from a remote location. The NMS installed at remote site can monitor and control cell site power backup system effectively. The user/operator sitting at NMS moderate backup system parameters such as but not limited to battery low voltage, battery high voltage, output voltage. These changes are stored in form of logs in NMS. NMS logs the operation of DG set.
According to another preferred embodiment the primary energy source can be configure to another primary power generation system such as but not limited to gas based power plant, solar based power plant, and wind based power plant. This feature is useful in conditions where grid supply is extremely poor or not available at all. This multiple power source configuration made the whole system versatile and greener.
According to another preferred embodiment, the present invention there is a provision to interface third party sensors and couplers. This feature incorporates user specific sensors such as but not limited to fuel, temperature, and humidity. The power backup system diagnoses the problem in the complete system, such as but not limited to the status of the battery, battery health, battery life, and overload conditions on all phases, short circuit, generator started, fuel status, temperature, input and output power quality etc. & sends a message to the telecom site operator for remedial action. All this setup creates an intelligent system which provides energy on basis of need and
also it controls the energy management real time. The controller inbuilt in power backup system moderates the energy consumption by cell site equipments. It controls the operation of Air conditioner by sensing the room temperature and ambient temperature. It controls other loads like light if there is crisis of power available in power bank. In case of any unfavorable condition the backup system generates alarm. These alarms are further extended to NMS which is logged and intimated to concern persons as per the requirement.
The backup system also keeps record of parameters such as but not limited to the DG diesel volume, rate of consumption, abnormal consumption detection, addition/ consumption report, low fuel level alarm, DG Failure, temperature of Engine, DG battery voltage, V-belt / fan belt cut, DG run-time. The system also records such as without limitation battery bank charge level, health status, voltage, current, temperature, estimated life, depth of discharge, cycle count & battery run-time. The system also records primary and secondary power source details which includes such as but not limited to the input voltage, frequency, current, output voltage, frequency, current, power, load on each phase, run hours of each energy sources. Different alarm conditions such as but not limited to battery high, battery low, output short circuit, output under voltage, output under voltage, overload alarms. All alarms are popup at real time basis and also communicated to remote NMS centre. The backup system also has smoke and fire detection system and raises an alarm during emergency conditions.
The present invention also provides real time management using real time communication. The power system for backup, installed anywhere in the world is centrally monitored and controlled by the user. The power source for backup has the connectivity through communication media & a hand held device. Using this, the user can monitor, control & configure the product from a remote location using hand held device.
It is to be noted that the present invention is susceptible to modifications, adaptations and changes by those skilled in the art. Such variant embodiments employing the concepts and features of this invention are intended to be within the scope of the present invention, which is further set forth under the following claims:-

WE CLAIM:
1. A power backup system with multiple sharing for providing power backup to telecommunication tower with monitoring of multiple sharing of various communication networks on a single telecommunication tower comprises a charger section, a DC/DC converter supplying DC power to different modules and drivers of the system, AC-DC converter, an inverter section for generating the regulated AC output from the DC source, line conditioner, alternative energy sources, a power storage bank and other equipments at telecom sites, metering unit and a control section connected to the various modules for monitoring and controlling the operation of the system as shown in fig. 1.
2. The power backup system with multiple sharing as claimed in claim 1, wherein, the priority is set on the basis of traffic or power drawn, wherein the backup system has alternative energy source with start/stop/control facility, in which the alternative energy source is generator.
3. The power backup system with multiple sharing as claimed in any of the preceding claims, wherein, the backup system forwards the command to the alternative energy source through a controller to optimize the use of the generator available & also to operate telecom uninterrupted, in which the other equipments at telecom sites are air conditioners, aviation light, battery charging unit etc that are available in the cell site
4. The power backup system with multiple sharing as claimed in of the preceding claim, wherein, the backup system checks for the predefined/user settable overload condition of the telecom signals and sends a warning to the overloaded network in form of message, e-mail, call or audible alarm.
5. The power backup system with multiple sharing as claimed in of the preceding claim, wherein, the backup system diagnoses the problem in the system, like e.g. the status of the battery, battery life, overload, short circuit, generator started, fuel status, temperature, input and output power quality and sends a message to the telecom site operator for remedial action.
6. The power backup system with multiple sharing as claimed in of the preceding claim, wherein, each site/ network has its own metering device with inbuilt memory that records the parameters such as but not limited to the energy consumption of the telecommunication site/network /service provider and communicates with the system through wireless or wired media, wherein the metering device is provided with unique codes generated through the system, which are stored in the metering device as well as in the backup system.
7. The power backup system with multiple sharing as claimed in of the preceding claim, wherein, the system keeps record of parameters like e.g. the DG diesel volume, rate of consumption, abnormal consumption detection, addition/ consumption report, low fuel level alarm, DG failure, temperature of Engine, DG battery voltage, V-belt / fan belt cut, and DG run-time.
8. The power backup system with multiple sharing as claimed in of the preceding claim, wherein, the backup system records like e.g. battery bank charge level, health status, voltage, current, temperature, estimated life, depth of discharge, cycle count and battery run-time, wherein the backup system has the connectivity through wire or wireless communication media & a hand held device for monitoring, controlling & configuring the product from a remote location.
9. The power backup system with multiple sharing as claimed in of the preceding claim, wherein, the backup system records primary and secondary power source details which includes such as but not limited to the input voltage, frequency, current, output voltage, frequency, current, power, load on each phase, run hours of each energy sources, different alarm conditions such as battery high, battery low, output short circuit, output under voltage, output under voltage, overload alarms.
10. A system for providing power backup to telecommunication tower with monitoring of multiple sharing of various communication networks on a single telecommunication tower as substantially herein described with reference to the accompanying drawings.