Boom Barrier 476232

Automatic Boom Gating System A SYNOPSIS SUBMITTED IN PARTIAL FULLFILLMENT OF THE REQUIREMENT FOR THE AWARD OF DEGREE OF

BACHELOR OF TECHNOLOGY IN MECHANICAL ENGINEERING

L.R INSTITUTE OF ENGINEERING & TECHNOLOGY OACHGHAT, SOLAN, HP (INDIA)

Submitted By:-

Submitted To :-

Team : Abhishek, Ashutosh, Hitesh,

Er. Anant Krishan Punn

Himanshu Kushal, Lokesh, Neeraj, Nitish

(H.O.D. Mech. Department)

Branch

: Mechanical Engg.

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Table of contents: Sr. no.

Contents

Page no.

1

Introduction

4-6

2

Objective and scope

7-8

3

Process Description

9-11

4

Resources

12

5

Limitations

13

6

Conclusion

14

7

information

15

2

Table of figures: Sr. no.

Contents

Page no.

1

Outcome idea of boom barrier

4

2

Schematic showing Design (Mech.) for the Boom Barrier

9

3

Boom Barrier

Fig1: outcome idea of boom barrier Team : Abhishek, Ashutosh, Hitesh, Himanshu, Kushal, Lokesh, Neeraj, Nitish Project Leader: Hitesh

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Introduction: A boom barrier, also known as a boom gate, is a bar, or pole pivoted to allow the boom to block vehicular access through a controlled point. Typically the tip of a boom gate rises in a vertical arc to a near vertical position. Boom gates are often counterweighted, so the pole is easily tipped. Boom gates are often paired either end to end, or offset appropriately to block traffic in both directions. Some boom gates also have a second arm, which pivots on links that allow the second arm to hang 300 to 400 mm below the upper arm when it descends into the horizontal position, to increase approach visibility. Boom gates are typically found at level (rail) crossings, drawbridges, parking facilities, checkpoints and entrances to restricted areas. They are also the usual method for controlling age through toll booths, and can also be found on some freeway entrance ramps which are automatically controlled to drop to restrict traffic in the event of accident cleanup or road closures without the need to dispatch road workers or law enforcement to use a vehicle to block the way. Some boom gates are automatic and powered, others are manually operated. Manual gates are sometimes hung in the manner of a normal gate (i.e. hinged horizontally). In some places, boom gates are installed across suburban streets as a traffic calming measure, preventing through traffic, while allowing authorized vehicles such as emergency services and buses to take advantage of the shorter and more direct route. Thus essentially barriers are the kind of an embankment which allows the authorized motors to and keep unwanted motors outside the premises or keep a check on them. These are the conventional method and are used since long time. Traditionally devoid of electric power operators were employed who manually operated the gate .These types were not all mechanical and used a counterweight for their operation .Then came the mechanical systems which employed gears , pulleys , ropes wires etc. for their operation. 5

Modern day technology employs a unique integration of mechanical, electrical and electronics techniques for an automatic operation.

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Literature Survey: I have studied the following literatures related to my project. Below is the conclusion of the literatures which are related to our work and which helps to understand the project concepts its implementation.

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Objective & Scope: Traffic gating is one of the problems of our college, so we have decided to solve this problem. We have decided to make our degree project (major) on gating system. The objective of "gating" is to control the inflow of traffic into the area of our college. This project greatly helps in reducing the human effort in gating as well as reducing the idle parking time in front of the gate. In our project we have decided to make the barrier three ways operated i.e. manual, semiautomatic and automatic. In manually operated gating system we use fully mechanical based mechanism. This helps in operating the gating manually by security guard during power failure. On the other hand automatic and semi-automatic systems are made with the help of electrical and electronics components. These systems are power based and help in reducing the human effort in gating. The Scope of this project is to provide our college with an efficient barrier system which will automatically control the Traffic. Reason for the selection of this live project is to nurture the Practical skills acquired from the theoretical knowledge by studying engineering. Also this project will demonstrate a way to our juniors so that they are also encouraged to develop the live projects, thus scaling the new heights for the advancement of our college. This project will be a stepping stone in the technological growth of our institute.

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Process Description:

Fig2: Schematic showing Design (Mech.) for the Boom Barrier

The design mainly consists of two shafts, a servomotor, two helical gears and a boom arm. As shown servomotor is the prime mover which will give the necessary rotary motion to the system. Gears will give the necessary speed ratio for the two shafts. There will be a fixed link between the driving shaft and boom arm which will allow to raise/lower the barrier. Servomotor is designed for the 180˚ rotation i.e. one half rotation. Thus, when driving shaft cover one half rotation then the driven shaft will cover one quarter i.e. 90˚, because of a simple gear train employed with a gear ratio of 2:1. Due to this the boom arm will be raised.

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The motion to the motor will be actuated by a system of biometric sensors which will sense the vehicles thus controlling the current to the motor. This whole system is fully automatic requiring no operator for the control of vehicles. In semi-automatic mode an operator will control the motor and hence raise the boom arm. Manual operation is also provided which can be used in case of power failure It can be employed in two ways: In first way a gear shifter similar to a gearbox along with the splined shaft will be used which will disengage the two gears and necessary motion for boom arm will be provided by a manually operated hand wheel similar to hand wheels of lathe machine In another method no gear shifter shall be used instead electronic system will be used. This will employ some electronic means to prevent the generation of back emfs which will be produced when the shaft is rotated manually without disengagement of gears during a power failure. On the basis of economic & design feasibility one of the two methods will be used for mechanical operation.

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Resources: Various components such as gears, shafts, keys, bearings will be purchased from local vendors. We also have links with industrial personnel who can guide us while selecting and purchasing these components. They will also help us in designating the various dimensions of components according to the industrial catalogue. Boom arm will preferably be made with aluminum. Its design can be solid arm as well as a frame with ribbed structures so as to reduce the weight. Due to unavailability of aluminum welding in our area other methods such as riveting, bolting can be used for the fabrication of boom arm. Electronics components will be designed and sourced by the electronic branch of our college.

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Limitations: 1) Due to frequent interruptions in power supply the automatic operation will be partially compromised. 2) Due to wide range of vehicles entering the campus sensor selection/operation can be troublesome. 3) A well-insulated and waterproof casing is to be developed to prevent damage to mechanisms and components. 4) Improper and careless manual operation can lead to failure of mechanical drives. 5) Cost of biometric sensors is very high. It will increase the overall cost of the project.

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Conclusion: This project will solve the problem of restricting the unwanted vehicles and permitting the authorized ones. This project will also demonstrate the technical & collaboration capabilities of the students as well as faculty of our reputed institute. As the projects are undertaken to develop new products or modify the existing ones for the betterment, we are sure that we as the team are on the right path to be the future engineers. We would like our deptt. and management to look at our idea as a springboard for our advancement as well as for the institute as a whole. We hope the responsible authorities will give the due care to our idea and provide us with the (N.O.C.).

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information: Sr. no

Name

Roll no.

no.

1 2 3 4 5 6 7 8

Abhishek pal Ashutosh koundle Hitesh sharma Himanshu Kashyap Kushal bhardwaj Lokesh kumar Neeraj kumar Nitish aggarwal

45502 45511 45521 45556 45526 45527 Me-le-9223 45534

9418114790 8894894920 9736744079 9805311104 9459861238 9882545027 9459028551 9816684181

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