Hi, was just wondering how do they go about putting in the destinations in the EDS ? Does someone type it in manually and saves it in the EDS console in each bus itself or do they type it in a comp and then download it into the all the EDS.
And where are the EDS console in the new SBST KUBs. It is just above the driver's head on the SMRT's ? And is it linked to the GPS system as I hav never seen the driver change the destination or tinker with it compared wif the SMRT's
oh...de kub eds dont have gps i guess..it's just.. repeating it's route only..
They actually type it in a computer then download it to all the EDS , and go by the codes itself. And update it when there's new service coming up. But i realise they didn't erase off those withdrawn SMRT services i.e 175 , 921 etc
Originally posted by Volvo Olympian:They actually type it in a computer then download it to all the EDS , and go by the codes itself. And update it when there's new service coming up. But i realise they didn't erase off those withdrawn SMRT services i.e 175 , 921 etc
Someone once posted to STOMP a bus showing "985W" on it's side LED, long after route 985W was withdrawn.
Also, note mistakes can occur even at the point of programming the LED displays. I have a photograph (originally taken by someone going by the handle of DolphinAirlines, I believe) that shows one of the Bukit Panjang feeder buses with it's LED reading "BUKIT PANJANG INT/MRT".
p.s. the term "EDS" is used mostly in the local bus community - personally, I prefer to use the more standard term "LED", which is used mostly by overseas bus communities.
Originally posted by leewan:Hi, was just wondering how do they go about putting in the destinations in the EDS ? Does someone type it in manually and saves it in the EDS console in each bus itself or do they type it in a comp and then download it into the all the EDS.
And where are the EDS console in the new SBST KUBs. It is just above the driver's head on the SMRT's ? And is it linked to the GPS system as I hav never seen the driver change the destination or tinker with it compared wif the SMRT's
Of course it's done on a computer and downloaded onto every bus.
The console is on top of the driver, and not linked to GPS.
Originally posted by eX.A.K.R.:Someone once posted to STOMP a bus showing "985W" on it's side LED, long after route 985W was withdrawn.
Also, note mistakes can occur even at the point of programming the LED displays. I have a photograph (originally taken by someone going by the handle of DolphinAirlines, I believe) that shows one of the Bukit Panjang feeder buses with it's LED reading "BUKIT PANJANG INT/MRT".
p.s. the term "EDS" is used mostly in the local bus community - personally, I prefer to use the more standard term "LED", which is used mostly by overseas bus communities.
Other countries does use the term EDS fyi.
LED and EDS are just 2 different things.
Originally posted by eX.A.K.R.:p.s. the term "EDS" is used mostly in the local bus community - personally, I prefer to use the more standard term "LED", which is used mostly by overseas bus communities.
EDS, or Electronic Destination Sign, is coined by TIBS when their Hispano DAFs and Mercs were introduced.
Originally posted by eX.A.K.R.:p.s. the term "EDS" is used mostly in the local bus community - personally, I prefer to use the more standard term "LED", which is used mostly by overseas bus communities.
I dint know that there are LED signs around, then what are flip dot (dot matrix) signs and LCD signs?
Hmmm... I was sure I heard the term "flip-dot matrix LED" somewhere, or I could be wrong...
I do know that the proper term for those older LED/EDS/whatever displays that uses flip-dots is "flip-dot matrix display", while the newer LED displays are also known as dot-matrix LEDs.
Originally posted by Scania:I dint know that there are LED signs around, then what are flip dot (dot matrix) signs and LCD signs?
LCD (as in Liquid Crystal Display) TV as route blind (desto)? Besides the experimental one on one Volvo B10M MK IV DM3500, I know of no buses using such a display technology. oO
Or, Electronic Display System.
Lots of variations I guess... :S
Originally posted by eX.A.K.R.:Hmmm... I was sure I heard the term "flip-dot matrix LED" somewhere, or I could be wrong...
I do know that the proper term for those older LED/EDS/whatever displays that uses flip-dots is "flip-dot matrix display", while the newer LED displays are also known as dot-matrix LEDs.
LCD (as in Liquid Crystal Display) TV as route blind (desto)? Besides the experimental one on one Volvo B10M MK IV DM3500, I know of no buses using such a display technology. oO
You're right. It's LED too.
EDS is probaby colloquial/another terminology for the LED displays used on buses.
Originally posted by eX.A.K.R.:Hmmm... I was sure I heard the term "flip-dot matrix LED" somewhere, or I could be wrong...
I do know that the proper term for those older LED/EDS/whatever displays that uses flip-dots is "flip-dot matrix display", while the newer LED displays are also known as dot-matrix LEDs.
LCD (as in Liquid Crystal Display) TV as route blind (desto)? Besides the experimental one on one Volvo B10M MK IV DM3500, I know of no buses using such a display technology. oO
From my knowledge - The earlier buses are using Flip Dot matrix (with mechincal parts or something.) Lighting up of the EDS is done by two flourescent tubes. Will have stuck dot problem when the mechanical part stop putting the pixel up, more common to happen at the route details rather than the route number area from my observation - EDS looks like corrupted.
The newer buses such as habits uses Flip Dot matrix with individual green (or orange) LED for each dot for lighting up at night. still susceptible to the EDS stuck dot. This individual green LED type EDS is for improved visibility. Still my favourite EDS type so far.
There's an all LED one if i'm correct...something like the K230UBs? it's all LED bulbs.
LCD - the tv type is cannot really see - i see reflections instead.
=\ might have remembered wrong info
Originally posted by eX.A.K.R.:LCD (as in Liquid Crystal Display) TV as route blind (desto)? Besides the experimental one on one Volvo B10M MK IV DM3500, I know of no buses using such a display technology. oO
Some of KMB's buses uses Gorba LCD signs. LCD signs do not need to be similar to TV.
Originally posted by off_service:EDS, or Electronic Destination Sign, is coined by TIBS when their Hispano DAFs and Mercs were introduced.
as off_servic estated the offical name to use is Electronci Destination Sign
the reason for the word destination and NOT display is ebcause buses too have interior LED displays for next bus stops or announcement.
also EDS replaced roller blinds and plastic destos etc... those show destinations so hence the D is for destination.
Flip dot technology tends to become rather troubleome as some dots flip and stay to OFF postiion hence a missing dot. Or worse is the dot flips to ON postion n stays On all the time.
Personally i would think LED normal are more reliuable.
LCD siaplys can however display much more finer detial and use to display even graphics on the EDS.
Modern EDS use electricty unlike the ol days of light bulbs. that explains the word Electronic.
really advanced LED EDS can display up to 4 colours. i beleive LCD EDS can display in true colour.
types of display modes
there are
1) Highlighted words n black or dark colour background.
For EDS : yellow words n black base background
In Hong Kong the LCD displa use (1). green background and white word. so it need not be that background is black.
2) Bright backgrund highlighted but dark words
For EDS means reverse programming for above. and yes this can be done on SMRT bsues. i've seen it appear before. as an error of cuz at Int.
Sometime for example yellow background n red words stand out for some bus operators on plastic desto.
this is of cuz not good on EDS cuz it will be super bright and the words very ark and hard to read out i darkness.
Originally posted by Scania:Some of KMB's buses uses Gorba LCD signs. LCD signs do not need to be similar to TV.
I think I'm getting what you are referring to; a matrix of two-colour LCD screens not dissimilar to dot-matrix LEDs and flip-dot displays.
Old EDS(Majority of SMRT buses up to Hispano Habit): Uses flip dot display
New EDS (LAWO, Transit Media, Cool air)(Some SMRT buses, K230UB, DT, 9810x): Uses LEDs
Originally posted by TIB537B:From my knowledge - The earlier buses are using Flip Dot matrix (with mechincal parts or something.) Lighting up of the EDS is done by two flourescent tubes. Will have stuck dot problem when the mechanical part stop putting the pixel up, more common to happen at the route details rather than the route number area from my observation - EDS looks like corrupted.
The newer buses such as habits uses Flip Dot matrix with individual green (or orange) LED for each dot for lighting up at night. still susceptible to the EDS stuck dot. This individual green LED type EDS is for improved visibility. Still my favourite EDS type so far.
There's an all LED one if i'm correct...something like the K230UBs? it's all LED bulbs.
LCD - the tv type is cannot really see - i see reflections instead.
=\ might have remembered wrong info
Those problems are called dead pixels. Conceptually, they are similar to the dead pixel problems that can occur with your LCD monitors, televisions, etc.; for flip-dot displays, the cause is, as you stated, a jammed mechanical part preventing the dot from flipping properly.
I have seen a few such flip-dot displays where, after refreshing, some of the dots remain struck in their former position for a moment before flipping over.
LED displays have their own set of problems. A few years back, I saw SBS 2779A (the Volvo B10M MK IV DM3500 with the LED display - and this was when it was a route 80 bus piror to it becoming the Nokia bus) with it's LED display displaying a flickering mass of garbled nonsense - no route number, details, not even characters that can be made out - just a mess of orange pixels. Not too long ago, I saw a route 86 Scania K230UB displaying a garbled mess on it's LED display too, but at least a few nonsense characters and the route number can be made out.
I believe it's possible that future bus displays might move away from dot-matrices and towards an emerging display technology: organic light-emitting diode (OLED). These displays are capable of high-resolution like an LCD monitor, emit their own light (LCD displays require the use of backlights, while flip-dot matrix displays require either an external lightning source or an individual LED bulb lighting up each dot), can be "printed" on flexible, curved surfaces, and theortically can be cheaper than LCD displays.Two major hurdles, however, exists: limited life of the organic materials used (blue OLEDs, in particular, last only 14,000 hours), and susceptibility to water damage - both which are especially major problems for use as bus displays.
i was going to touch on OLED when u went there already
lol
save energy and has brigher output
I am eaferly awaiting the first bus to use this new technology
ZYX
Correct me if i wrong
in the procss of programming the EDS via computer
the programmer has to one by one select the pixel out to form a word, so it'll take some time for him to program out a new set from scratch?
ZYX
Originally posted by ZYX2005:Correct me if i wrong
in the procss of programming the EDS via computer
the programmer has to one by one select the pixel out to form a word, so it'll take some time for him to program out a new set from scratch?
ZYX
Depends on the mobo of the EDS. Some would be easier to program than othes ;).
Originally posted by ZYX2005:i was going to touch on OLED when u went there already
lol
save energy and has brigher outputI am eaferly awaiting the first bus to use this new technology
ZYX
Great minds think alike.