This is our presentation in Mashrouy IV competition. Mashrouy IV is a competition sponsored by British Council in Sudan. We have reached the top 12 projects--we still there BTW. Hopefully, we will get a better position.

1. GeoidApp: Things
can be quite better…
and easier
Mohamed Yousif and Mohamed Jaafar

2. Our Problem
Typical surveying works are :

3. Expensive

4. Time Consuming

5. Outdated

6. Is it that worse?
Let the numbers speak about themselves

7. 100Km Road Survey Costs
15 days Campaign
Requirement Cost (SDG)
2 Engineers 30,000
3 Workers 9,000
GPS Device 18,000
Optical Level 1,050
2 Cars 30,000
20 Control Points 2,000
Fuel 2,400
Subsistence
costs
5,775
Data Processing 52,000
Total 150,225
Using the old-fashioned way !
Very expensive :(

8. 100Km Road Survey Costs
15 days Campaign
Requirement Cost (SDG)
1 Engineer 15,000
1 Worker 3,000
GPS Device 18,000
1 Car 15,000
Fuel 1,200
Subsistence
costs
1,650
Data Processing 47,000
Total 100,850
Using our approach
Saving to 31.5% :)

9. Based on empirical results
Number of equipments Cost of equipments Number of workers
(Non-Engineers)
For a surveying network
of 1km * 1km
3 levels
200 sdg for each level 6 workers6 Staffs
3 tapes
2 Theodolites

10. Normally you would
assume that the
relationship of the cost
versus distance being
surveyed is a linear
function of (distance, cost)
Is it linear?

11. Oops...
It’s not linear, it’s rather
exponential.
Then why?

12. The most sought for problem in all
Geodesy
Earth’s figure problem

13. The updated prices
for > 30 Km

14. The previous prices
Number of equipments Cost of equipments Number of workers
For a surveying
network of 1km
3*n levels 200 sdg for each
6 workers6*n Staffs
3 tapes
2*n Theodolites 400 sdg for each

15. The updated prices
# Equip. $ equip (sdg/day) # workers Professionals
For a surveying network of 30
km
3*n levels 200 sdg for each
● 6*n workers
They get even
higher salaries
per project2*n
Theodolit
es
400 sdg for each
Total
station
> 700 2 per device
EDM > 500 2 per device

16. That’s a lot of millions.
Could it get worse?

17. The time
For short distances, or areas you need a short amount of time
The rent of equips, workers, however, is proportional to the
time

18. It’s a hard problem to solve
- Time
- Cost
- AccuracyFor short distances we can rent low-cost equips. For a
short amount of time, with low-salary workers, within the
acceptable accuracy.

19. It’s a hard problem to solve
- Time
- Cost
- Accuracy
For long distances, we rent expensive equips. for a long
amount of time. The accuracy becomes more critical, e.g. if
the error isn’t acceptable you’ll may find yourself doing the
project again!

20. We need it to be
used as simple as
this.

21. Does that even
possible?

22. We need it to be
● Accurate. Reliable
● Affordable. Spend your money on something else
● JIT. Instantly get results

23. Let’s imagine

24. You’ve a wizard that
can make your
whole life easier

25. A teleportation
machine to instantly
go through 1000s of
kilometers

26. We couldn’t...
➔ Have a wizard
A further investigation is required,
though.
➔ Build a teleportation
It’s a cool idea. But it’s very hard, isn’t it?
➔ Employers
Convince the employers to not scale
with the job quantity

27. How we gonna do that?
We want it to be
affordable, reliable,
and JIT.

28. Consider the case of the GPS
Do you know that GPS
was not adapted in the
surv. Engg. works until
very recently?

29. Consider the case of the GPS
Source: https://en.wikipedia.org/wiki/Position_resection
Could you imagine that
you’ve to do
complicated surv. works
for calculating your
position?

30. GPS uses exactly the same
math that is used by the old-
outdated-expensive resection
method

31. Meet the new new

32. We made it to be
- Simple. No need for scary courses to learn it
- Customizable. It’s made for you, and just you.
- Reliable. It’s ready for production.
- Fast. You can survey the whole Kh area in just a sec.
- Affordable. Let those bully costs get down
- We made it to be perfect.
- We made it to change the whole surveying professional.

33. Our Results
The smaller the better

34. Our Results
The smaller the better

35. Our Team
Mohamed Yousif
Co-Founder
Machine Learning Engineer, Data
Scientist
Mohamed Jaafar
Co-Founder
Mobile App Developer

36. Milestones
2015 2016
October 2015
It was just an idea
November 2015
Our first successful model
March 2016
A mobile version was
developed
August 2016
We’ve extensively tested
the whole GeoidApp suit.
It’s ready for real-world
use.

37. What people are saying
``Undulation can be
modelled , which enables
the GPS to be used for
orthometric heights
determination in much
faster and more
economical way than
terrestrial methods.”
Rozsa
``This is far from being
trivial: we now have a
method to replace
leveling, a tedious and
time-consuming old
fashioned method with
GPS leveling, a fast and
modern technique.”
Moritz, et al.
``GPS/Levelling is the
most recent and advanced
method that is used in the
determination of heights”
Ayhan CEYLAN, et al.
Moritz’s textbook Physical Geodesy is the standard textbook in geodesy literature.

38. It’s built to be Used!

39. It’s built to be Perfect!

40. It’s built to be Dominant!

41. It’s Real.

42. Starting At
1,999 SDG