TECHNICAL FIELD OF INVENTION
The present invention relates to a computer implemented system, method, and apparatus for locating and securely accessing IoT enabled smart amenities. The present invention relates to an IoT based system that provides location of smart amenities provided by IoT service-devices in a geographical area and a method and apparatus that securely authorizes access of such smart amenities by users through touchless payment modules.

BACKGROUND AND PRIOR ART OF THE INVENTION
Reference is taken from US9704329B2 titled “System and method for dispensing consumable liquids” which teaches about a networked system for providing and maintaining a set of liquid dispenser stations. It does not teach about locating a nearby amenity and securely accessing it on successful payment.
Reference is taken from US10637683B2 titled , “system and method for IoT based smart city”, which teaches about a computing system that autonomously controls the management of IoT devices to perform tasks based on actions to be taken. It does not teach about locating a touchless service providing an IoT device and securely accessing it, on authorization, in real time on any smartphone/mobile device.
OBJECT OF THE INVENTION
The main objective of the invention is to provide a computer implemented system for locating and securely accessing IoT enabled smart amenities in a geographical area on a mobile communication device in real time.
Another object of the proposed invention is to provide a method for locating and securely accessing smart amenities provided by IoT devices in a geographical area to the user.
Another object is to provide an apparatus capable of providing IoT enabled service in a geographical area in real time.
Another object of the proposed invention is to provide the user an authorised secure access of the IoT enabled smart amenity through touchless payment option in real time.
Another object of the invention is to provide a computer implemented system for building a smart city with IoT enabled services and locating and accessing these services provided by the IoT enabled smart service devices in real time.
Another object of the proposed invention is to integrate all amenities provided by IoT enabled devices in a particular geographical area and provide optimal services to the user in real time through the user interface.
Another object of the proposed invention is to integrate location servers, payment servers and service provider modules and provide secure access to the user to access the selected IoT service-device securely and avail the services provided.
Another object of the proposed invention is to add more and more service modules offering different IoT enabled services to the system to create an efficient smart city.
Another object of the proposed invention is to provide the user to avail facility of IoT service-device by making payment through his/her associated e-wallet.

SUMMARY OF THE INVENTION
The present invention relates to a computer implemented system for locating and securely accessing IoT enabled smart amenities in a geographical area comprising of a user subsystem, a service-control unit, one or more authorization units and a plurality of IoT service-devices wherein
the user subsystem comprises of a user, a first transceiver with a user interface, that sends first query signal, second query signal and transaction request signal , to service-control unit and receives first response signal, second response signal and transaction completion signal from service-control unit through the user interface in real time;
the service-control unit comprises of a second transceiver, an identification and access module, a processing unit, and a storage module with inbuilt memory and database ; and wherein
the second transceiver communicates with the user subsystem, authorization units and IoT service-devices in real time ;
the identification and access module determines the location and authenticity of the user and displays the first response signal as received from the processing unit on the user interface of the first transceiver;
the processing unit processes plurality of first query signals, second query signals, transaction request signal, first response signals, second response signals, transaction completion signals and transaction signals;
the storage module stores the details of user subsystem, authorization units, IoT service-devices and transaction signals, service options and details of connected IoT service- devices and groups all IoT service-devices as per service protocol;
the authorization unit consists of a third transceiver and a service processing module that enables access to IoT service devices in real time ;
the IoT service-device is configured to carry out instructions as per the nature of service provided by the IoT service device ;
and wherein the service-control unit is communicatively connected to the user subsystem , the plurality of IoT service-devices , one or more authorization units, a plurality of location servers, authorization/regulatory servers, telecommunication servers, payment servers and databases located on cloud;
and wherein the service-control unit is configured to authorize secure access of IoT enabled smart amenities by first transceiver of the user subsystem in real time through a mobile/web application.
In an embodiment the identification and access module receive the first query signal from the user subsystem through the second transceiver in real-time.
In another embodiment the first query signal consists of a service location request to service-control unit
In an embodiment the first response signal consists of a plurality of service module location options and at least one optimal option.
In an embodiment, the second query signal consists of a request to access a particular IoT service-device and a request for a list of service options offered by the selected IoT service-device.
In another embodiment, the second response signal consists of a list of available service options offered by the selected IoT service-device.
In another embodiment, the authorization unit allows secure access of selected IoT service-device by user transceiver only on successful completion of transaction.
In another embodiment the user transceiver is a customized gadget..
The proposed invention also relates to a method for locating and securely accessing IoT enabled smart amenities in a geographical area, comprising
- receiving a first request, from user transceiver, related to one or more service of interest in the geographical area;
- retrieving from a storage module, a plurality of information of IoT service-devices providing the service of interest in that area;
- comparing the information of IoT service-devices and first request from user to provide a first response containing one or more optimal options of IoT service-device;
- receiving a second request identifying an IoT service-device and requesting a list of service options for the service of interest;
- initiating second response containing available service-options offered by the selected IoT service-device ; wherein the said initiation comprises
o sending query to authentication unit for list of service options offered by the selected IoT service-device ; and
o receiving response from authentication unit containing the list of service options;
- initiating processing of transaction by processing unit, on receipt of transaction request sent by the first transceiver; and
- allowing the user , an authorized secure access of the smart amenity of selected IoT service-device, on successful processing of transaction.
In an embodiment, the transaction request is processed by the processing unit by authenticating the user and completing the payment process in real time.
In yet another embodiment, the authenticated user can access a special amenity before the payment is processed.
In another embodiment the authenticated user can collect credit points on availing a special amenity based on specific service protocol.
In yet another embodiment, the user can make the payment by any mode of payment selected from online mode ,credit card, debit card, PayTm, internet banking ,offline mode, e-wallet, credit points etc.
The proposed invention also relates to an apparatus to provide IoT enabled smart amenity, wherein the said apparatus is an authorization unit consisting of a third transceiver and a service-processing module coupled to an IoT service-device to provide a service, in real time, according to a service protocol of the IoT service-device; and wherein
- the third transceiver
- receives a query from service-control unit and sends the response containing a list of service options provided by the selected IoT service-device; and
- receives an access request signal from user transceiver and sends an ‘access allowed signal’ on successful payment;
- the service-processing module
- checks and updates the status of the active IoT service-device to the service-control unit; and
- authorizes the user transceiver to securely access the IoT service-device on receiving signal of successful processing of transaction from the service-control unit and allows user to avail service.
In an embodiment the apparatus has an inbuilt power source with self switching ability.
In another embodiment the apparatus is powered by renewable means of energy.
In another embodiment the apparatus has provision for connecting to an external power source.
In another embodiment, the payment is done through an e-wallet associated with the user profile.
In yet another embodiment the system will deduct the actual amount from the associated e-wallet of the user according to the usage time after he/she avails the service.
In another embodiment the service-protocol associated with a particular service defines the manner in which the apparatus instructs the IoT service-device to provide service.

BRIEF DESCRIPTION OF THE DRAWINGS
Fig 1 shows an embodiment of system (100) for locating and securely accessing IoT enabled smart amenities. The system comprises a user subsystem (101), a service-control unit (102), one or more authorization units (110) and IoT devices providing service according to their service protocol. In this embodiment the authorization unit (110) is connected to IoT service-device according to a service protocol (A-Z) .
Fig 2 shows the method (200) of locating and securely accessing IoT enabled smart amenities.
Fig.3 shows an embodiment of the apparatus (300) for locating and securely accessing IoT enabled amenities. The apparatus (300) is an authorization unit (110) that consists of a transceiver (117), a service processing unit (118) and a power supply (116).
Fig. 4 shows an embodiment of the example (400) of IoT enabled waste bin (107A)
Fig. 5 shows an embodiment (500) of an IoT enabled water dispenser (107B). Fig 5(a) shows the front view of the water dispenser and Fig .5(b) shows the internal structure of the IoT device.
Fig.6 shows an embodiment (600) of an IoT enabled smart toilet (107C).

DETAILED DESCRIPTION OF THE INVENTION
The invention relates to a computer implemented system, method, and apparatus for locating and securely accessing IoT based smart amenities provided by IoT based service-devices that constitute a smart city. The computer implemented system(100) consists of a user subsystem (101), a service-control unit (102), one or more authorization units (110), and a plurality of IoT service-devices (107) providing services.
The user subsystem (101) consists of users (1), user transceivers (120) or mobile communication devices such as mobile phones, laptops, tablets, or any other customized gadget etc. which can be connected communicatively to the system through a web/mobile application (App) (130). The web/mobile app can be accessed through user interface (121). The App (130) may be downloaded on the mobile device. The user transceiver (121) may be a customized gadget with a manual control console. The user (1) can locate any smart amenity that is available in a particular geographical area through the App (130) in real time.
The service-control unit (102) of the system consists of a second transceiver (131), identification and access module (103), a processing unit (104), a storage unit (105) with inbuilt memory and database. The service-control unit (102) is communicatively connected to the user subsystem (101), the authorization units (110), the plurality of IoT service-devices (107), location servers (114), payment servers (112), telecommunication servers (113) and databases (111) on cloud (108). It is also connected to other regulatory (e.g.Government or private service providers) servers (109) that regulate the tariff and management of smart city amenities. The service-control unit (102) communicates (13) with a plurality of servers on the cloud in real time. The components of the proposed system(100) communicate with each other through internet/ mobile/ web/ wi-fi / Bluetooth / cloud or any other communication medium.
The user (1) logs on to the app (130) on his mobile device (120) and searches for an amenity in the geographical area. The second transceiver (131) receives the first query signal (11) from the user (1). The identification and access module (103) identifies the location of the user through the GPS servers or location servers (114) communicatively connected to the service-control unit (102). The first query (11) consists of a request for a particular service in the geographical area where the user is located. The App will display the service providing IoT service-devices in the user's present location, but the user can select the required location where he/she wants to look for a particular amenity manually as well.
The service-control unit (102) will send a first response (12) to the user transceiver (120) containing the location of all the IoT service-devices (107) connected to the authorization units (110), providing selected service, on the user interface (121).
Storage module (105) of the service-control unit (102) stores all the details of the IoT service-devices providing service/smart amenity and groups all the IoT service-devices (107) belonging to a particular type of service. Any new IoT service-device that is introduced in the system will be connected to the system through authorization unit (110) and follow service protocol (A-Z) based on the type of service /amenity provided by the IoT service-device (107). The storage module (105) will have records of all active service IoT service-devices (connected to authorization module) and their capacities in real time.
The first response (12) will also contain the suggestion of optimum IoT service-device (107) based on the location of the user. The optimum IoT service-device (107) may be the one which provides best service (based on service ratings) or the one that is close to the user’s present /required location. Once the user gets information of the IoT service-devices (107) offering the service, he/she can select the IoT service-device providing the service of his choice. The user transceiver (120) will send a second query (21) to the service-control unit (102). The second query (21) contains a request for access of the selected IoT service-device and request for list of service options (37) offered by the selected IoT service-device (107).
The processing unit (104) of the service-control unit (102) receives the second query (21) and processes the query. The service-control unit (102) communicates with the concerned authorization unit (110) and checks for the list of service options provided by the selected IoT service-device. The service-control unit (102) passes on the query(15) to authorization unit (110). Authorization unit (110) sends a response (16) with the details of the active IoT service-device (107) to the service-control unit (102). The service-control unit (102) sends a second response (22) to the first transceiver (120) containing details of all the available service options provided by the selected IoT service-device (107).
The user (1) selects the service option from the list of all service options (37) enlisted in the second response (22) and proceeds for payment. The user transceiver (120) sends the service-control unit (102) a transaction request (31). The processing unit (104) of the service -control unit (102) processes the payment by interacting with the payment servers (114) on cloud (108) through transaction signals (14) and when the payment is successfully completed, the service-control unit (102) sends a successful transaction processing/completion signal (32) to user transceiver. The user transceiver (120) automatically sends an access request (17) to authorization unit (110) on receipt of successful transaction processing/completion signal (32) from the service-control unit (102). The authorization unit (110) sends an ‘authorized access approved’ signal (18) to user transceiver (121), connects the selected IoT service-device (107) to the user interface (121) and allows the user to avail the selected service (19).
In an embodiment the user account is associated with an e-wallet from where the payment will be deducted as per the selected service tariff.
The proposed system also relates to a method (200) of locating and securely accessing IoT enabled smart amenities. The method (200) of locating IoT service -device begins with the user (1) logging on to the App (130). The method comprises the following steps:
- the identification and access module (103) of the system (100) receiving a first request (11), from user (1) through his mobile device/first transceiver (120), related to one or more services of interest in the geographical area.
- retrieving from the storage module (105), a plurality of information about IoT service-devices (107) providing the service of interest in that area,
- comparing by the processing unit (104), the information of IoT service-devices (107) and first request from user to provide a first response (12) containing at least one optimal option of IoT service-device;
- receiving a second request (21) related to selection of IoT service-device and service-options for the service of interest;
- initiating second response (22) containing available service options of the selected IoT service-device (107): wherein said initiation consists of
- sending query(15) to authentication unit (110) for list of service options offered by the selected IoT service-device (107);
- receiving response (16) from authentication unit(110) containing the list of service options;
- initiating processing of transaction by processing unit (104), on receipt of transaction request (31) sent by the first transceiver (120) , processing transaction and sending successful payment/transaction completion signal (32) to first transceiver(120);
- allowing the user, with an “authorised access allowed signal’(18), a secure access of selected the IoT service-device (107), on successful processing of transaction, when an access request (17) from user transceiver (120) is received and connecting user to selected IoT service-device(107) in real time.
The user needs to log on to the system through his mobile/communication device (120). The App (130) enables the user to locate and access selected service provided by IoT service-devices in an area in real time. Any new user needs to create a profile (23) on the system to enable secure access to a service. The user profile consists of user name, address, mail id, registered mobile number, preferred payment mode, details of credit/debit cards, authentication passwords etc. The user profile is also associated with an e-wallet in his profile where all the credit points are stored. When the user (1), through the first transceiver (120), sends a first query (11) to the service-control unit (102), the second transceiver (131) receives the query and passes it to identification & access module (103). The identification & access module (103) communicates with GPS or location servers (114) on cloud to get user location (24) and authenticates the user (checks if he/she has a valid login). Then it gets the details of all active (35) IoT service devices following the same service protocol from the storage module (105) , compares this data with user location (24) and identifies one or more optimal options (34). The service-control unit sends a first response (12) to the user transceiver (120) with the list of active (35) IoT service-devices and at least one optimal option (34). The user sends a second query (21) which identifies a particular IoT service-device and requests service options (37) offered by the device. The service control unit (102) sends a query (15) to the authorization unit (110) for the services offered by the IoT service-device(107). The authorization unit sends the response (16) containing this information to service- control unit (102).The service-control unit (102) sends a second response (22) based on this information to the user transceiver(120). The user transceiver initiates transaction request ( 31) to avail a service. The processing unit (104) of the service-control unit processes the payment by interacting with payment servers (112) on cloud (108). The payment is processed according to the preferred way of payment already stored by the user in his profile i.e. the payment can be made via any online (credit card, debit card, mobile banking, pay Tm, etc.) or offline mode (e-wallet, credit points etc.) of payment. Once the payment is successful, the processing unit (104) sends a transaction completed signal (32) to the user transceiver. It automatically forwards the access request (17) from first transceiver (120) to authorization unit (110). The authorization unit (110) allows access to the IoT service-device (107) with an access allowed signal (18) and the IoT service device provides the required service (19) to the user.
The proposed invention also relates to an apparatus for securely accessing IoT enabled amenities wherein the said apparatus is an authorization unit (110). An authentication unit consisting of a third transceiver (117) and a service-processing module(118) wherein;
- the transceiver (117),
- receives a query( 15) from service-control unit (102) and sends the response (16) containing a list of service options provided by the selected IoT service-device(107); and
- receives an access request signal (17) from user transceiver (120) and sends an ‘access allowed signal’ (18) on successful payment;
- the service-processing module (118),
- checks the status of the active IoT service-device (107);and
- authorizes the user transceiver to access the IoT service-device on successful payment by user and allows user to avail service (19).
The apparatus has provision to be connected to an external power source(116) .
In another embodiment the apparatus is provided with an inbuilt power source with self switching capability.
Any device can be configured to provide service according to service protocol(A-Z) by integrating it with the apparatus (110) to provide IoT enabled smart amenities. According to the service provided by the device, it can be included in the proposed system (100). The system (100) is capable of expansion to include more services and more IoT service devices. The system is regularly updated to provide smooth integration of new IoT service-devices.
The application (130) may be hosted on a remote server or on cloud. The App platform may be any supporting computing platform that provides a user interface/API to access and connect to the app e.g., amazon web services, Microsoft azure, google cloud etc. The Application can be modified /customised to accommodate emerging services in the future. Secure access of the IoT service-devices by the user is decided according to the service protocol they follow.
The system can be integrated with other applications to provide better maintenance of the smart city. The tariff of a service is regulated by the regulatory authority such as government agencies or service providers etc.
The IoT service-devices may provide any amenity such as smart water, smart bin, smart toilet , smart parking, smart charging points, smart meter, electric vehicle charging station etc. Some examples are elaborated.
Example 1 :
The smart water dispenser (500) is an example of IoT enabled service that can be accessed in real time by any registered user. The user may find the location of IoT enabled water dispensers (107B) in a geographical area. The user can easily locate and access the smart water service in real time. Once the user logs into the system and verifies his credentials, the App connects him to the system (100). The user can locate IoT enabled water dispensing units around his present location in real time. The authenticated user is allowed by the system to select a water dispensing unit (107B) and avail its service on payment. The payment request is handled by the processing unit (104) of the system which calculates the total amount for the required amount of water the user proposes to buy. In one embodiment, the amount is deducted from the e-wallet in real time. In another embodiment, the amount is deducted by connecting to other payment servers on cloud. The user is given access to avail the service on successful payment. The system ensures touchless payment and secure access of the IoT service-device to avail the service. In case of any modification in the service opted or any difference in the opted service and availed service, the processing unit will automatically recalculate the correct amount to be paid and deduct it from the user's e-wallet associated with the user profile whenever the user comes online next.
Example 2 :
The smart bin (400) is an IoT enabled service that provides location and access of waste bins in real-time. The user (1) logs on to the system through the user interface on his mobile. After the authentication of the user and selecting the IoT service device by the user, the processing unit(102) , according to the service protocol of the App set by the service processing unit (118) of authorization unit (110), processes the transaction request by the user. The service protocol is different for different services. For smart bin (400), the user gets reward for using smart bin on selected type of materials disposed. E.g. plastic bottles when disposed-of in a smart bin(107A) earn credit points to the user that are stored in an e-wallet associated with the user. These credit points can be used for availing other amenities as well.
Example 3:
The smart toilet (600) is a novel product that enables the user to locate an IoT enabled smart toilet (107C) in real-time on his mobile phone. The user can avail the service of a smart toilet by logging on to the app (130) through user interface ( 121). The App would show the location of all the active IoT enabled smart toilet service-devices (107B) present in that area. The user can select the IoT service-device, as per his choice. The user (1) is given access to the selected IoT service-device (107C) on initiating payment for the selected service (as per selected time duration ) and make payment towards required service for the duration selected. The IoT smart toilet (107C) communicates with the user transceiver (120) and system components through a third transceiver ( 117). The user may be allowed to access the smart toilet on successful payment to avail the service. The access to IoT enabled service-device (107C) is given by the processing module (118) If the duration of usage exceeds the time duration for which payment is made, the excess due will be deducted from the user’s wallet or whenever the App on the user mobile connects with the internet.
The description, drawings and examples only illustrate embodiments of the present invention and should not be construed in limiting the scope of the invention.

ADVANTAGES
1. Easy to locate nearby IoT devices providing service on the mobile device of the user in real time.
2. Single click system for faster and secure payments
3. Smart amenities provide a better maintained smart city.
4. IoT devices can be customised.
5. Amenities such as Clean water will be available for everyone
6. Smart bins will reduce the plastic waste pollution
7. Auto updates to enable more and more IoT device compatibility
8. More services can be integrated with the system in future.

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Claims:

We Claim :
1. A computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area comprising of a user subsystem (101), a service-control unit (102), one or more authorization units (110) and a plurality of IoT devices (107);
wherein
the user subsystem comprises of users (1) , a first transceiver (120) with a user interface (120), that sends first query signal (11), second query signal(21)and transaction request signal (31), to service-control unit (102) and receives first response signal (12), second response signal (22) and transaction completion signal (32) from service-control unit (102) through the user interface(121) in real time;

the service-control unit comprises (102) of a second transceiver (131), an identification and access module (103), a processing unit (104), and a storage module (105) with inbuilt memory and database ;
and wherein
the second transceiver (131) communicates with the user subsystem (101), authorization units (110) and IoT service-devices (107) in real time ;

the identification and access module (103) determines the location and authenticity of the user and displays the first response signal (12) as received from the processing unit (104) on the user interface (121) of the first transceiver (120);

the processing unit (104) processes plurality of first query signals (11), second query signals (21), transaction request signal (31), first response signals (12), second response signals (22), transaction completion signals (32) and transaction signals (14) ;

the storage module (105) stores the details of user subsystem (101), authorization unit (110), IoT service-devices (107) and transaction signals (14), service options and details of connected IoT service- devices (107) and groups all IoT service-devices as per service protocol (A-Z) ;
the authorization unit (110) consists of a third transceiver (117) and a service processing module (118) that enables access to IoT service devices (107) in real time ;
the IoT service-device (107) is configured to carry out instructions as per the nature of service provided by the IoT service device;
and wherein the service-control unit (102) is communicatively connected to the user subsystem (101), the plurality of IoT service-devices (107), one or more authorization units (110), a plurality of location servers (114), telecommunication server (113), regulatory servers (109), payment servers (112) and databases located on cloud (108) ;
and wherein the service-control unit (102) is configured to authorize secure access of IoT enabled smart amenities by first transceiver (120) of user subsystem (101) in real time through a mobile/web application (130).
2. The computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area as claimed in claim 1, wherein the identification and access module (103) receives first query signal (11) from the user subsystem (101) through the second transceiver (131) in real-time.
3. The computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area, as claimed in claim 1, the first query signal (11) consists of a service location request to service-control unit (102).
4. The computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area, as claimed in claim 1, wherein, the first response signal (12) consists of a plurality of service module location options and at least one optimal option (34).
5. The computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area, as claimed in claim 1, wherein the second query signal (21) consists of a request to access a particular IoT service-device (107) and a request for a list of service options (37) offered by the selected IoT service-device (107).
6. The computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area, as claimed in claim 1, wherein the second response signal (22) consists of a list of available service options (37) offered by the selected IoT service-device (107).
7. The computer implemented system (100) for locating and securely accessing IoT enabled smart amenities in a geographical area, as claimed in claim 1, wherein, the authorization unit (110) allows secure access of selected IoT service-device (107) by user transceiver (120) only on successful completion of transaction.

8. A method (200) for locating and securely accessing IoT enabled smart amenities in a geographical area , comprising
- receiving a first request (201), from user transceiver (120), related to one or more service of interest in the geographical area;
- retrieving (202) from a storage module, a plurality of information of IoT service-devices (107) providing the service of interest in that area;
- comparing the information of IoT service-devices and first request from user to provide a first response (12) containing one or more optimal options (34) of IoT service-device (107);
- receiving a second request (204) identifying an IoT service-device and requesting a list of service options (37) for the service of interest;
- initiating second response (205) containing available service-options (37) offered by the selected IoT service-device (107); wherein the said initiation comprises
o sending query (15) to authentication unit (110) for a list of service options offered by the selected IoT service-device (107); and
o receiving response (16) from authentication unit (110) containing the list of service options (37);
- initiating processing of transaction (206) by processing unit, on receipt of transaction request (31) sent by the first transceiver (120); and
- allowing the user (207), with an “authorised access allowed signal’ (18), a secure access of the selected IoT service-device (107) to avail service (19), on successful processing of transaction in real time.
9. A method (200) for locating and securely accessing IoT enabled smart amenities in a geographical area, as claimed in claim 8, wherein the transaction request (31) is processed by the processing unit (104) by authenticating the user and completing the payment process in real time.
10. An apparatus (300) to provide IoT enabled smart amenities, wherein the said apparatus is an authorization unit (110) consisting of a third transceiver (117) and a service-processing module (118) coupled to an IoT service-device (107) to provide a service, in real time, according to a service protocol (A-Z) of the IoT service-device; and wherein
- the third transceiver (117)
- receives a query (15) from service-control unit (102) and sends the response (16) containing a list of service options (37) provided by the selected IoT service-device(107); and
- receives an access request signal (17) from user transceiver (120) and sends an ‘access allowed signal’ (18) on successful payment;
- the service-processing module (118)
- checks and updates the status of the active IoT service-device (107) to the service-control unit (102); and
- authorizes the user transceiver (120) to securely access the IoT service-device (107) on receiving signal of successful processing of transaction from the service-control unit (102) and allows user to avail service (19).