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Gardening Assistant.

Thesis Info

Author

Zohaib Ashraf, Rabeea Saleem

Program

BS

Institute

Habib University

Institute Type

Private

City

Karachi

Province

Sindh

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Software Engineering

Language

English

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676724376768

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This project involves the design and construction of an autonomous robot engineered to complete some basic maintenance tasks of a regular lawn. The primary aim of the task is to design and construct such a device, which if it functions accordingly, makes lawn maintenance easier and more efficient, while at the same time help save the gardeners from the scorching summer heat. Initially, individual subsystems of the device were designed and tested separately which included; blade design for grass trimming, water tank and valve for watering, encoder motors and microcontrollers for car motion and sensors for obstacle avoidance and autonomous navigation through the lawn. Thorough research on each subsystem has been conducted by the team. The team had to improvise, at times, to alternate solutions during the implementation phase in order to achieve more accurate and efficient results. Following development and research, some components have been assembled and tested, both, individually and in combination with other components. Early prototypes of these subsystems included the use of single microcontroller to control the four motors, and a magnetometer to navigate on a straight path. After testing of prototypes, the device has been modified to improve efficiency and overall functionality. Some components, including the magnetometer, have been removed and encoders of the motors are being read instead, to compute distance and accurate turning of the vehicle; whereas the single microcontroller has been replaced by five microcontrollers using the master slave methodology. In order to provide the scheduled rebooting and to include a rain detection mechanism, additional components have been added before final testing of the prototype device, such as the inclusion of a real-time clock and a rain-detection sensor. In the construction of the final device, materials have been used to improve stability, strength and waterproofing. A body structure made from a strong water-resistant chemical has been added to the final device to provide a rigid frame for components, while a stable wooden board has been 6 used as the base. Similarly, watering system used in the prototype has been fixed using the same chemical to prevent water leakage. A number of existing components have been arranged on and around this frame, including the ultrasonic sensors and the trimming blade. The device has been tested for four main cases which includes obstacle avoidance, boundary detection, automatic rebooting along with rain sensing and, grass trimming along with watering. The tests conducted on the final device yielded consistent results in terms of functionality and efficiency. Therefore, the performance of the device during future assessments is expected to be successful, provided no damage or unknown alterations occur prior to the assessment
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پروفیسر رشید احمد صدیقی

پروفیسر رشید احمد صدیقی
افسوس ہے ابھی مولانا عبدالماجد دریابادی کے اشک ماتم خشک بھی نہیں ہوئے تھے کہ اردو ادب وانشا کے میدان کاایک اورشہسوار گرا یعنی پروفیسر رشید احمد صاحب صدیقی نے کم وبیش پچاسی برس کی عمر میں علی گڑھ میں وفات پائی اور وہیں سپردخاک ہوئے۔ مرحوم کا اصل وطن جونپور تھا لیکن طالب علمی کے زمانہ میں علی گڑھ آئے تو بس یہیں کے ہوکر رہ گئے، یہیں انھوں نے تعلیم حاصل کی۔ اُس زمانہ میں اردو میں ایم۔اے نہیں ہوتاتھا اس لیے فارسی میں ایم۔اے کیا، پھر یہیں اردوکے لیکچرر ہوئے اورایک عرصہ کے بعدریڈر بنے۔ڈاکٹر ذاکر حسین صاحب جن کومرحوم ہمیشہ مرشد کہتے اورلکھتے تھے اُن کی وائس چانسلری کے زمانہ میں پروفیسر ہوگئے لیکن اس عہدہ پرفائز ہوئے ابھی دو ہی برس ہوئے تھے کہ ملازمت سے سبکدوش کردیے گئے۔ یونیورسٹی کے قانون کے مطابق وہ ابھی توسیع کے مستحق تھے لیکن اس زمانہ میں یونیورسٹی میں جو سیاست چل رہی تھی وہ مانع ہوئی اور شیخ عبدالرشید(شعبۂ تاریخ)وغیرہ کے ساتھ یہ بھی ریٹائرڈ کرد یے گئے۔ مرحوم نہایت خوددار اورحساس تھے اس لیے انھوں نے شکوہ شکایت کسی سے نہیں کیا لیکن انھیں اس کااحساس عمر بھررہا چنانچہ وہ علی گڑھ میں ہی اپنے ذاتی طویل و عریض مکان میں ایسے گوشہ نشین ہوکربیٹھ گئے کہ نہ کبھی اردو ڈپارٹمنٹ میں قدم رکھا اورنہ یونیورسٹی کی کسی تقریب،کسی پارٹی اورفنکشن میں کہیں نظر آئے۔
مرحوم نے اگرچہ کوئی مستقل کتاب کبھی نہیں لکھی اورنہ کوئی علمی اورتحقیقی کام کیا لیکن وہ اردو زبان کے عظیم نکتہ دان اورادیب تھے، اس لیے مضامین کثرت سے لکھے جن کے دومجموعے ’ ’طنزیات ومضحکات‘‘ اور ’’مضامین رشید‘‘ کے نام سے طبع ہوکر ارباب ذوق میں مقبول اورمشہور ہوئے۔ علاوہ ازیں بعض خطبات بھی چھپے ہیں۔ ان کااردو، فارسی اور انگریزی ادب...

A Sharʽiah Analysis of ʼijāra as a Financing Mode in the wake of Parallel Banking System of Bank of Khyber

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