FIELD OF INVENTION
The present invention relates generally to the field of sports for sensing foot touch. More specifically, this invention relates to a system and its mechanism for sensing foot on line in field/court game specifically for the game of kabaddi.

BACKGROUND OF THE INVENTION
Kabaddi is one of the most popular sports in India, played mainly among people in villages. It is regarded as a team-contact sport as a recreational form of combat training. Two teams occupy opposite halves of a small field and take turns sending a raider into the other half, in order to win points by tagging/wrestling members of the opposing team; the raider then tries to return to his own half while holding his breath and chanting "kabaddi, kabaddi, kabaddi" during the whole raid.
There are 4 forms of kabaddi played in India are Amar, Suranjeevi, Huttuttoo, and Gaminee. Amar is generally played in Punjab, Haryana, America, Canada, and other parts of the world, mostly by Punjabi sportsmen. Suranjeevi is the most played form of kabaddi in India and the world. This is the form used in international matches generally and played in Asian Games. Huttuttoo was played by men in Maharashtra State.
(Ref: - https://en.wikipedia.org/wiki/Kabaddi_in_India)
We limit our invention to the forms of kabaddi that uses rubber/floor mat for playing it. As national style kabaddi that is played on rubber floor/mat while amar style or it is said as Punjabi style is played on normal soft soil ground.
Various lines in kabaddi court are:
Mid Line: The line that divides the play court into two halves is known as the mid-line.
Baulk Line: Each of the lines in court parallel to the midline is known as baulk line.
Back line: It is end boundary line of the court.
Bonus Line (Black colour): The line parallel to Baulk line towards end line is known as Bonus line.

Problem in existing method of umpire/referee decision making:
While raiding in kabaddi the opposite team player should not go out of the court boundaries and should not even keep his foot on boundary lines. The raider as well as defenders should not enter in lobby till player raider touches them by rule. But while playing the game it has been observed that many times the player touches the back line and yellow lobby line and the referee who stands behind, sometimes is not able to see that the player has touched the black line. This may result in a wrong decision and thereby in a loss of point of opposite team which may sometimes result in losing the match. Most of the times, referee is confused whether the player has touch the back line or not. As umpire/referee has to check for both the feet of raider (one who enters the court of opponent) at the same time. Sometimes the decision may go wrong as it is based on the visual as perceived by the umpire. The umpire may thus take a decision which is actually not right. Therefore, in most of the cases, the raider is not satisfied with the referee/umpire decision. A T.V umpire review is asked for in such a situation and that creates nuisance and un- necessary wastage of time. Sometime it is even difficult for T.V umpire to make decision correctly as again it is based on visual as perceived and not the real time effect.
Innovative approach proposed by the inventor
In the present invention, the inventor has analyzed that the problem of wrong decision arises and came up with an innovative approach so that fair play can be done by technological methods rather than dependent on human visual perceptions. So the inventor has developed mechanism for sensing foot on line in sports field/court specifically for game of ‘Kabaddi’. This floor/mat contains sensors fixed under the lines of the floor/mat of the kabaddi court that sense the position of the player. Correspondingly, an indication lamp glow along with alarm that indicates the position of the player’s on the back line or raider on the yellow line which may help the umpire take an easy decision. So a lamp of different color glows along with alarm when foot is kept on back and yellow line. Therefore the umpire sees different colors and can easily take a decision on points based on the alarm or light seen by him in real time.

PRIOR ART LITERATURE AND PATENTS
S. No. Patent Application no./ Research Articles Summary of invention Comparison with present invention
1. US 5839976 A The inventor discloses a game mat apparatus that includes electronic control unit including a variety of function buttons, a score display screen and a speaker device, along with multiple lights and sensors. The inventor of the present invention discloses a the mechanism for sensing foot on line in sports field/court that includes strips with springs placed at some distance for sensing position of the foot on the back line or yellow line.
No pressure sensor are used in the present mechanism.
2. US 3883860 A
An electric circuit and indicator system for a court game, such as tennis, using conductive elements on both the ball and outside the court playing area to activate a visual and audible indicator when the ball drops outside of the playing area. The inventor of the present invention has developed a mechanism for sensing position of player on the back line or yellow line.
No conductive elements are used in the system but a sensitive electronic circuit is used that helps in sensing position of the foot on the back line or yellow line.
3. US 5800292 A In this invention the inventors disclosed system for detecting whether a conductive felt covered game ball has landed within the boundary area of a gaming surface. The system incorporates permanently installed decorative circuits which stay in an active open state while awaiting touch down of conductive game ball. In the present invention the inventor has developed a mechanism for sensing position of the foot of player when it is kept on the back line or yellow line.
Under back line or yellow line a sensitive electric circuit is fixed that senses the foot on line and gives a signal in form of light or alarm.
4. US 8096900 B2 Mat for sport and games for detecting impact position of a movable object. The mat includes an outer layer and an inner layer, each with inlays of electrically conductive elements forming a pressure-sensitive switch distributed over the target area. In the present invention spring mechanism is used for sensing the pressure on the electrical circuit that gives signal in form of light or alarm.
Whereas the comparative patent discloses a mat under which outer layer and inner layer are present that senses the ball pressure.
The present invention is very sensitives and cost effective than existing mechanisms.
No relevant patent was found in Indian database therefore, it can be concluded from the above that in spite of all the efforts made the previous proposed solutions and known in the prior art index do not meet all the essential requirement which should have been taken into consideration.
OBJECTS OF THE PRESENT INVENTION
The main object of the present invention is to disclose a mechanism for sensing foot on line in field/court game (especially for the game of ‘Kabaddi’) that ensures the precise decision making of points directly from the court (or field of Kabaddi) without any wastage of time.
Another object of the present invention is to disclose a very sensitive spring mechanism for sensing the player foot touch on the line of floor/mat on the kabaddi court.
Yet another object of the present invention is to disclose a very cost effective and simple mechanism for sensing the touch of the line by foot of the player that helps the umpire in giving fair decision.
SUMMARY OF THE INVENTION
The inventor has disclosed a very sensitive mechanism for sensing foot on line in field/court game specifically for the game of kabaddi. The sensing mechanism is fixed under the back line and yellow line in the kabaddi court. The sensing mechanism consists of a circuit that contains very sensitive springs that are fixed along the length of the circuit. When foot is kept on the back line or yellow line springs being sensitive senses the pressure and is pressed. Correspondingly, an indication lamp glows with an alarm indicating the position of the foot which may help the umpire take a decision. For easy decision making different color of light is provided for yellow line and back line i.e. red for back line and yellow for yellow line. So the inventor has provided a simple, sensitive and very cost effective mechanism for providing fair play in the game of kabaddi.
DESCRIPTION OF DRAWINGS
FIGURE 1: Schematic diagram for mechanism used in present invention
1. Strips
2. Spring
3. Insulator
4. Wires
5. Alarm
6. Indication
7. DC Supply
FIGURE 2: Schematic diagram of Kabaddi Field/court
8. Back line
9. Yellow line/Yellow lobby

DETAILED DESCRIPTION OF THE INVENTION
The inventor of the present inventor has developed a mechanism for sensing foot on line in field/court game specifically for the game of kabaddi. It consists of stainless steel Strips (1) for switching, springs (2) that provides sensitive touch sensation when line (Back line (8) or yellow line/yellow lobby (9)) is touched or pressed, Insulators (3) in between springs (2) and strips (1), Alarm (5) and an indication lamp (6) that provides indication that line is pressed, wires (4) for signals transferring and linking different components of the system. A DC supply (7) is provided for powering this mechanism.
Working of the present invention:
1. The mechanism works when any player in the game (Kabaddi) keeps foot on the line.
2. Normally, the mechanism is in OFF state but as and when the player foot is on the line, the strips (1) are pressed.
3. As the strips (1) press, it puts pressure on the spring (2) that contracts and changes the state of the mechanism to ON mode.
4. Being in ON mode the signal is given in the form of alarm and indication lamp.
This mechanism is put under the yellow line/yellow lobby and under back line on both side of kabaddi court. The mechanism is so sensitive that even if some part of the shoes/foot is kept on the line the mechanism give the signal. So the inventor has developed a low cost and efficient mechanism for sensing touch of foot on yellow line and back line on the kabaddi court.
NOVELTY
The novelty of the present invention lies in disclosing a mechanism for sensing foot on line in field/court game specifically for the game of kabaddi. The problem that occurs is that the fair decision of line touch by foot is not given because the players moves so fast that even sometimes the referees cannot see whether the player kept his/her foot on the line or not. So the inventor has provided a technological solution that provides easy indication to referee for the foot touch of player on the line.

INVENTIVE STEP
The inventor has analysed the problem of decision making by the on field referees that the line touch by foot of the player has occurred or not. The inventor has fixed a sensing mechanism exactly under the touch lines on floor/mat of the kabaddi court. The sensing mechanism includes two stainless steel strips between which sensitive springs are fixed that on pressing provides signal of the touch of the foot on the line by the player. Thus the invention saves the game time and also fair and correct decision is given by the referee.
INDUSTRIAL APPLICATION
It has a huge industrial application in the field of sports/games. As accurate decision and fair play is the motive of any sports. Thus the present invention provides easy and correct decision making for the referee and for morale of the players. Moreover being a very cost effective and simple mechanism it is easy to implement and market.

I CLAIM:
1. A real time system for sensing foot on line in field/court game, WHEREIN the same consists of:
- Plurality of stainless steel strip (1) for switching;
- Plurality of spring (2) that provides sensitive touch sensation when line (Back line (8) or yellow line/yellow lobby (9)) is touched or pressed;
- Plurality of insulator (3) in between springs (2) and strips (1);
- Alarm (5);
- Indication lamp (6),
- DC supply (7)
and WHEREIN the same is fixed exactly under the reference touch lines on floor/mat of the kabaddi court.

2. The system as claimed in claim 1 WHEREIN in normally OFF condition:
- Two stainless steel strips (1) are placed in parallel and used as a switching element;
- Insulator (3) is placed in between the slots available over the plurality of stainless steel strip (1);
- Spring (2) is placed in between insulator (3);
- Alarm (5) and indication lamp (6) are connected in parallel and get activated when two parallel stainless steel strip (1) touches each;
- Alarm (5) is supplied with DC power.

3. The system as claimed in claim 1 WHEREIN the mechanism of use consists of following steps:
- As and when the player foot is on the line, the strips (1) are pressed;
- As the strips (1) presses it puts pressure on the spring (2) that contracts and changes the
state of the mechanism to ON mode;
- Signal is given in the form of alarm (5) and indication lamp (6) to umpire to take a decision in real time.

KOMPAL BANSAL
PA NO. 1754
Dated: 07 October, 2017 PATENT AGENT FOR THE APPLICANT