DESC:DESCRIPTION OF THE PRIOR ART:

“Elevator” as the name suggests means a device like a box that moves up and down, carrying people or goods from one floor of a building to another. Thus, the elevator is nothing but a transporting means, which is used to transport people or goods. The basic components of elevator are car, hoistway, machine/drive system, safety system and control system. Typically, elevators are operated by elevator operators using a motor controller. The elevator car is connected through a bunch of cables, which carried electrical signal to control the movement of the elevator from one floor to another. After receiving the signal, the lift car moves upwards to downward depending upon the signal received. The movement of lift car is controlled through the side rail guides on which the lift car moves. The operation of the elevator is regulated using an electric motor. Based on the switch pressed i.e. directing/calling the lift to higher floor or to lower floor, the electric motor either moves in forward and reverse direction to move the elevator in either upward or downward direction.

Typically, the installation process of elevators is a cumbersome and time consuming process. Each floor of the building is connected with the central control panel and the lift car through electrical wires or cables. These cables play an important role in managing the operation of the elevator. As soon as the user enters into the lift car and send the instruction, the electrical signals are carried to the motor through these cables based on which the lift would move in upward or downward direction. Thus, at the time of installation, an expert hand is require to install connection between the cables/wires and the motor. Any bug/error in the connection may lead to severe fault in the operation of the elevator. It is also important to note that the electrical wires despite being an effective medium to control the operations are prone to external environment like dust, water, regular wear and tear etc. Even the wires are prone to the wear and tear created by rodents. Thus, the technology of installation and operation are not error free.

It is therefore, need of an hour to device an automatic control or operating system for lift operation, which is not dependant on the electrical cables and wires to collect the instructing signals for operation. The present invention provides for an elevator operation and maintenance system using wireless modem.

OBJECT OF THE INVENTION

It is therefore an object of the present invention to provide a wireless elevator modem, which reduces the cumbersome process of wiring by using wireless radio frequency modems.

It is another object of the present invention, which reduces the need of wiring to almost 75% or more.

Another object of the present invention is to provide a wireless elevator modem, wherein such modem can report any maintenance issue immediately after diagnosis.

An object of the present invention is to provide a wireless elevator modem, wherein such modem can be configured remotely thereby reducing the manual/human intervention.

Yet another object of the present invention is to provide a wireless elevator modem, which modem can be remotely upgraded without any intervention of wired network.

Another object of the present invention is to provide a wireless elevator modem, which modem can be effectively used in any industry / product to eliminate the wiring complexities, e.g. cranes, automotive, etc. through customizations.

Another object of the system is to provide each set of modems a unique address which can be any value from up to 2^32 = 4,294,967,296 options.

Another object of the invention is to have the capability such that multiple sets of modems can be installed in nearby to each other, as cross-talk can be eliminated having different, unique address for each elevator.

Another object of the invention is to have an inbuilt internal communication testing and error handling system that displays errors on the attached landing operating panel display

DESCRIPTION OF THE DRAWINGS:

Figure 1 of the present invention discloses an embodiment of prior art technology prevailing for lift installation.

Figure 2 of the present invention depicts an elevator operating system, wherein the wires from the floor are terminated at floor module of the wireless modem.

Figure 3 of the present invention discloses the parent-hub and the sub-groups of wireless modem connected with the central operating panel and elevator car as well as all the floors respectively.
DESCRIPTION OF THE INVENTION:

Reference is made to Figure 1, Figure 2, Figure 3 and Figure 4, which together explains the prior art technology for operation of the elevator as well as various embodiments of the present invention explaining various functionalities of its operations. However, any embodiment or the specific feature of the present invention disclosed herein should not be treated as the limitation of the present invention.

Figure 1 of the present invention discloses an embodiment of prior art technology prevailing for lift installation. The said figure discloses as to how each floor Landing Operating Panel (LOP) and Car Operating Panel (COP) are connected with the top panel via a lot of cables which are tough to manage and also installation is time consuming processes.

As depicted a prior art of elevator operation system (100) is disclosed herein. The said elevator operation system (100) has an elevator panel top (110) located on each floor starting from floor 0 (zero) to floor 9. The elevator panel top comprising a seven segment display, push buttons and arrows to identify the movement of the lift car, reeds, call LEDs, and a stop button. An elevator car (130), which moves upward and downward depending upon the call request in between floor zero to floor nine is connected through a bunch of cable (120) and (125). Further, each floor is interconnected with each other to receive the request sent by user through cable (125). Thus, in a case, where the elevator car (130) is parked at floor six and a user standing at floor one wishes to use the same, it will press the call button. The elevator operation system (100) immediately triggers the signals and these electric signals travels through the bunch of cables (125) passing through each floor. When the signals reach at floor six, it will trigger the elevator car (130) to move downward from floor six to floor one. However, in the prior art system, if a single cable malfunctions due to any of the fault or default the complete system would come at halt.

Figure 2 and Figure 3 of the present invention discloses an embodiment of the present invention respectively. It depicts an elevator operating system (200), wherein the wires from the floor are terminated at floor module of the wireless modem. The wireless modem communicates to the top modules through wireless signals thereby removing the need for all the wiring.

As depicted in the said embodiment of the present invention, the wireless modems can be divided into a parent hub and various sub-groups. The parent hub can be installed in the Central Operating Panel (210) and it communicates with both all the sub-group modules typically installed in elevator car (230) as well as different floor (220). The sub-groups are installed in elevator car and with each floor, wherein it connects with landing operating panel and the principle-hub installed at the central operating panel. It is highly flexible and compatible with all existing control panels.
The parent hub and the sub-groups can communicate with each other at a pre-determined frequency. The frequency can be in the range of 2.4 GHz. After receiving the instructions in the form of electrical signal from a specific floor, the parent hub and sub-groups would replicate these electrical signals to send the instructions. Since, the parent-hub and the sub-groups are installed on every floor; it reduces the need of installation of wires and maintenance of the same. The said combination of principle-hub and sub-groups can also be used for other functionalities including health checks, remote monitoring and maintenance of the elevator operating system as a whole.

Figure 3 of the present invention discloses the parent-hub (320) and the sub-groups of wireless modem (310) and (330), which can also have embedded control systems and radio frequency communication. The wireless modem constitutes various electronic components such as LED, capacitors, resisters, optocouplers, ICs etc., which are integrated on a PCB along with a microcontroller. A software program is loaded on the microcontroller to implement the message protocol. The modem may also have an antenna to broadcast messages at a pre-determined frequency. It works on frequencies ISM band and it avoids collision with GSM, GPRS. The said modems can be housed in powder coated metal enclosures fit for tough conditions in the lift well requiring minimal maintenance or it can be part of the existing lift fixtuers. The software program as loaded on the microcontroller can have a user defined protocol for networking and error handling. The said protocol may include parameters such as without limitation implementation of message sequencing for key functionalities such as message communication for all operations LOP like push buttons, floor reeds, call registered LEDs, display with up-down arrow and also support all operation of COP like push buttons, call registered LEDs, stop button and the like. The said protocol may include failure messages as well as health checks along with the procedures to implement the same.

The embodiments of the invention described, referred hereinabove are provided to overcome the hurdles and achieve benefits, and advantages as hereinabove set forth. It may be possible to further modify and improve the described invention within the scope of the unity of the present invention. Thus, the illustrations, explanations, formulae and the methodology as explained in the specification hereinabove may not be treated as limitation to the invention.
,CLAIMS:CLAIMS:

1. A system that can collect data regarding push buttons on landing operating panels of elevators, encode the data and send it on the physical layer of radio frequency signals in the open frequency range of 2.4 GHz.

2. A system that can collect floor reed related data and convert it into radio signals and emit it on the physical layer of radio frequency signals in the open frequency range of 2.4 GHz.

3. A system that can collect the above mentioned data and receive the radio signals from the floors below it, collate the two data sets and emit it to the central control panel.

4. A system that can collect display related data form central control panel and convert it into radio signals.

5. A system that can receive data from the floors above it and display it on the landing operating panels.

6. A system that can send display related data to the floors below it.

7. A system that can be configured for floor id, serial number and frequency using configuration interface provided on raspberry pi based minicomputer.