Claims:1. An automotive headlamp control and indication system for an off-road vehicle comprising :
at least one programmable relay for receiving input signals from switch and ignition switch;
at least one NO/NC relay for receiving input signals from programmable relay and switch;
at least one ignition switch for the vehicle which provide input signals to programmable relay ;
at least one headlamp switch placed between said programmable relay and NO/NC relay;
at least one display unit for alerting operator about present status of headlamps;
at least headlamp unit mounted on vehicle;
at least one headlamp relay placed between NO/NC relay and said headlamp unit, characterized in that the display unit and the headlamp relay receive input signals from programmable relay and NO/NC relay.

2. The automotive headlamp control and indication system for an off-road vehicle claimed in claim 1, characterized in that the programmable relay receives input signals from the headlamp switch and ignition switch.
3. The programmable relay claimed in claim 2, characterized in that programmable relay furthermore comprises microcontroller unit for processing information based on received signals and further controls the high cycle or low cycle or both of the coil and controls the output of the programmable relay.
4. The automotive headlamp control and indication system for an off-road vehicle claimed in claim 1, characterized in that the programmable relay sends output signals to the headlamp switch and the NO/NC relay for pre-determined time T1 after the ignition switch turns off and the display unit and the headlamp unit remains on.
5. The automotive headlamp control and indication system for an off-road vehicle claimed in claim 1, characterized in that the display unit stop glowing once operator manually presses the headlamp switch during pre-determined time T1.
6. The automotive headlamp control and indication system for an off-road vehicle claimed in claim 5, characterized in that once operator manually presses the headlamp switch during pre-determined time T1 the programmable relay sends output signals which enable headlamp unit remains on for pre-determined time T2.
7. The automotive headlamp control and indication system for an off-road vehicle claimed in claim 1, characterized in that NO/NC relay receives input signals from the programmable relay or headlamp switch or both of them and gives output signals to the display unit and the headlamp relay.
8. The automotive headlamp control and indication system for an off-road vehicle claimed in claim 1, characterized in that the headlamp relay further connected to the headlamp unit.
, Description:FIELD OF THE INVENTION
The present invention relates to off-road vehicle and/or construction, earthmoving equipment and particularly to an electric control module to enable headlamps after removal of ignition key and pressing of momentary switch for a fixed certain time and switches off after that and more particularly to a warning apparatus which indicate to the operator when headlamps of the vehicle have been left on and the ignition key of the vehicle has been removed.

BACKGROUND OF THE INVENTION
In remote locations, such as dense forested regions, areas with insufficient lighting facilities, it becomes difficult for an operator/driver to reach his/her destination after disembarking from the machine such as compactor, backhoe loader etc. In this situation the operator should carry a torch light to see the path; otherwise an accident/mishappening can occur due to zero or poor visibility.
Patent Document number US2002118547 teaches about a lighting system for an off-road vehicle includes one or more exit lights that are activated upon operator demand and that are automatically deactivated after a designated period of time after exit lights activation, thereby facilitating the operator's departure from the vehicle. The lighting system includes an electrical power source, at least one running light, at least one exit light, and a control system that is coupled to the power source and to the lights and that controls operation of the running light and the exit light. The control system includes a manually operated switch movable between (a) an OFF position in which neither the running light nor the exit light is coupled to the power source; (b) a running light activation position in which at least the running light is coupled to the power source; and (c) an exit light activation position.
A timer is operatively coupled to the switch and to the exit light and is operable, in response to selection of the exit light activation position of the switch, to couple the exit light to the power source for a designated period of time. Because exit light activation occurs under operator control rather than automatically, and because exit light activation is not necessarily preceded by running light deactivation or any other operation, the operator is imbued with a sense of control not experienced with other exit light control systems.
Patent Document number US2006133099 teaches an exit lighting system for a work vehicle includes an exit light, controller connected to the exit light, and an operator interface connected to the controller for selecting various modes of operation. The operator interface includes a display that shows several exit lighting settings and an operator input device that permits the operator to adjust the settings, such as by turning the exit lighting on and off, selecting the exit light duration, and checking a light sensor to be sure it is dark before using the exit lights. The exit lights turn on when one or more of several operator selectable conditions exist: the operator doors are opened or closed, the atmospheric lighting is low, the headlights are on (prior to ignition off), and the ignition switch is turned off.
Above documents describes the exit lights that may be helpful when operator is near the vehicle but are not effective in determining the path away from vehicle.
Secondly, over past many years various types of indicating or warning systems were developed for automobile vehicles. These indicating or warning systems are used for alerting vehicle operator various types of critical or undesirable conditions of vehicle such as tyre pressure, fuel level, speed limit, engine abnormality, faulty part information, information on servicing time etc.
Conventionally, in almost in all vehicles headlamps operation synchronized with ignition switch. In such cases, vehicle operator turns off ignition but leaves the headlamps on. Hence there is possibility to drain the energy stored in the battery to a level where the battery is insufficient to start the vehicle since headlamps of the vehicle left on for long duration without any requirement.
One of the critical and undesirable conditions which can occur when vehicle operator turns off ignition but headlamps remain on. To overcome such abovementioned critical condition, there is need to develop effective and efficient indicating or warning system to alert operator on the headlamps status.
Many innovative solutions were attempted to solve this problem. One of the solutions available in prior art was vehicle alarm system working continuously as soon as the headlamps remain on. This became very cumbersome to operator and nearby persons when operator wants to leave the headlamps on with the ignition off to perform servicing or repairing at night etc.
Hence there is need to develop effective and efficient indicating or warning system.
To overcome abovementioned shortcoming and problems associated with conventional system, it is more desirable to achieve a indicating or warning that is more simple, fast and energy-efficient than previously known methods and solves or at least relieves some of the problems discussed above.
It is therefore an object of the present invention is to overcome one or more problems associated with the prior art.

OBJECT OF THE INVENTION
The main objective of the instant invention is to provide an electric light control module to enable lighting of headlight even after removal of the ignition key in a construction machinery/equipment.
Yet another objective of the present invention is to provide easy access for the operator/driver of the construction machinery to his/her destination.
One more another objective of the present invention is to allow access to any hurdle that may come in way while the construction machinery is in a remote area.
Yet another objective of the present invention is to allow access to any help in case of any technical fault in the construction machinery in a remote area.
Yet another objective is to allow the operator/driver to turn off the ignition of the construction machinery and prompt any obstructions while being in the cabin or away from the machinery.
A method according to an aspect of the present invention is also disclosed.
Further advantageous embodiments and further advantages of the invention emerge from the detailed description below.

SUMMARY OF THE INVENTION
The present invention relates to an electric control module that enables headlight even after removing the ignition key comprising of a programmable relay and normal relay, at least two switch inputs and one power output in said programmable relay wherein depending upon said input units, the output of the relay is programmed to achieve the desired result.
The present invention relates to a system consisting of a programmable relay and enable switch which keeps the headlights in lit condition even after the ignition key has been removed.
The system works in co-ordination with the programmable relay and normal relay units. There are two switch inputs and one power output in the programmable relay. Depending upon these inputs, the output of the relay can be programmed to achieve the desired result. The said programmable relay comprises of a micro controller which receives these two switch inputs and controls the High/Low cycle of the coil. This in turn controls the output of the programmable relay.
As the ignition signal goes off, the programmable relay gives the output High for pre-determined time T1 to headlamp switch and NO/NC relay. So switch becomes active and the NO/NC relay remains in its position which is one of the output of relay and turn Display ON. In the pre-determined time T1, if the operator presses the spring returned headlamp switch, the NO/NC relay switch the position to second output mode and display stops glowing. As the headlamp switch is connected to programmable relay, the programmable relay sets the output High for another pre-determined time T2. This output enables the headlamps relay by NO/NC relay and the headlamps glows for the pre-determined time T2.

BRIEF DESCRIPTION OF THE DRAWINGS
With reference to the following drawings, a more detailed description of different exemplary embodiments of the invention will follow below.
In the drawings:
Figure 1 Illustrates a schematic representation showing an automotive headlamp control and indication system according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION
An automotive headlamp control and indication system for an earthmoving or construction machine according to an embodiment of the present invention will be described hereinunder with reference to FIGS. 1.
As shown in FIG. 1, a schematic representation showing an automotive headlamp control and indication system (100).
The present system (100) is used for an earthmoving or construction machine (not shown in fig.). This present system includes six different embodiments however embodiments of present invention are not restricted to a schematic representation depicted in FIG.1.
All the embodiments are marked with the numbers and the representation of the marking is as follows:
1. switch
2. Programmable relay
3. NO/NC relay
4. Display unit
5. Headlamp Relay
6. Headlamp unit
7. Ignition switch
8. Battery
9. Earthing contact
The all abovementioned embodiments are connected with each other as per the system (100) shown in FIG.1
The programmable relay (2) receives input signals from the ignition switch (7) and the headlamp switch (1). The programmable relay (2) also receives power input from the battery (8). The said programmable relay (2) comprising of micro-controller which receives input signals from the ignition switch (7) and the headlamp switch (1) and further appropriately process these signals to deliver appropriate output signals to the headlamp switch (1) and the NO/NC relay (3).
As per another embodiments of the present invention; when operator turn off ignition switch (7), the programmable relay (2) sends output signals to the headlamp switch (1) and the NO/NC relay (3) for the pre-determined time T1. Further headlamp switch (1) gets closed and voltage gets passed to NO/NC relay (3) as shown in FIG. 1.
The display unit (4) glows for pre- determined time T1 till switch (1) is closed.
The headlamp switch (1) may be toggle type switch or relay type switch or spring based switch or any other type of switch such as push based switch, selector switch, joystick switch, lever actuator limit switch etc.
During predetermined time T1; if operator press headlamp switch (1), then such input signal gets received by NO/NC relay (3) which further processes the input signal and gives output signals to the display unit (4). Thereafter the said display unit (4) stops glowing.
Once operator press headlamp switch (1) during pre-determined time T1, such input signal get received by the programmable relay (2) which further processes input signals with the help of micro-controller and sends output signals to NO/NC relay (2) for another pre-determined time T2. Thereafter the NO/NC relay (2) sends signals to headlamp relay (5) which further connected to headlamp unit (6) which becomes active or enabled for another pre-determined time T2.