Rear View Camera

[tarquin]

Hello everyone

Just because there is an input in the TNS510 I have decided to play with it. It has 4 connections to populate an existing plug. Video signal,screen ground of the video, +12v and -volts. It works by operating a switch in the reverse gear which sends a command to the TMS510 to put 12volts on the appropriate pins. The camera receives the voltage and turns on. When the TMS510 receives the synchronising pulse within the video waveform, it swatches the input of the TNS510 to Aux video and you see the picture.Now it is possible to fit a video switch so you could switch between camera and a DVD.All you have to do is locate the reverse switch so you can make it a spare button on the gear consul.

Ok Genuine answers please. Only if you know for sure the answer.

I don't like the original MR T camera so am going to fit mine. Technically its not an issue.Now I didn't want to install where MR T's put theirs because its off set and I didn't want to drill in the tail gate.I thought on the bottom bumper in -line with the hatch button underneath it.Then I thought of the place in the picture. Its neat and if I had to take it out for some reason it would be just a matter of making up another number plate as its mounted in a chrome surround.Now the numbers and letters are of regulation size , so no issue and are offset to the right to make room for the euro logo. Can anyone see any legal issues with instead of a logo there is a black disc there.The camera I am holding in the picture looks quite thick but in fact is a flush fit.

David

[sweet-dentist]

Hello everyone

Just because there is an input in the TNS510 I have decided to play with it. It has 4 connections to populate an existing plug. Video signal,screen ground of the video, +12v and -volts. It works by operating a switch in the reverse gear which sends a command to the TMS510 to put 12volts on the appropriate pins. The camera receives the voltage and turns on. When the TMS510 receives the synchronising pulse within the video waveform, it swatches the input of the TNS510 to Aux video and you see the picture.Now it is possible to fit a video switch so you could switch between camera and a DVD.All you have to do is locate the reverse switch so you can make it a spare button on the gear consul.

Ok Genuine answers please. Only if you know for sure the answer.

I don't like the original MR T camera so am going to fit mine. Technically its not an issue.Now I didn't want to install where MR T's put theirs because its off set and I didn't want to drill in the tail gate.I thought on the bottom bumper in -line with the hatch button underneath it.Then I thought of the place in the picture. Its neat and if I had to take it out for some reason it would be just a matter of making up another number plate as its mounted in a chrome surround.Now the numbers and letters are of regulation size , so no issue and are offset to the right to make room for the euro logo. Can anyone see any legal issues with instead of a logo there is a black disc there.The camera I am holding in the picture looks quite thick but in fact is a flush fit.

David

David, I built my own rear camera in the iQ... Camera has a short wire... that plugs in the long wire from the front monitor... and it gets its power from inside the middle conslole..

It has an on/off switch... cause I use it almost all the time.. and not just when rear parking... :)

Just above the numberplate..

With the monitor above the clocks... The left one... at the right is my MIO routeplanner...

Here is the switch... I can turn it off when in the dark too much light..

Here are all the pictures: http://s676.photobucket.com/albums/vv127/realbutcher/achteruitrijcamera%20iQ/?start=all

Peter

[tarquin]

Hi Peter

Some nice pictures If you can remember, what was the quickest way to get to the reverse gear switch as it would be nice to quickly switch to rear view whilst going along..I have had the gear consul apart to get to the lighting but wasn't looking then for switches etc.. I am going to use the built in sat nav unit for convenience. The camera is 28mm quite large but the quality is superb, It also has an overlay grid built into the camera showing distances.

David

[tarquin]

so Peter, are you saying that you utilised the reverse gear switch even though in your system you don't need to. Are you using it for convenience so you don't have to switch it on manually when reversing but let the gear switch do it for you

david

[sweet-dentist]

so Peter, are you saying that you utilised the reverse gear switch even though in your system you don't need to. Are you using it for convenience so you don't have to switch it on manually when reversing but let the gear switch do it for you

david

NOPE, nope and no ... NOT using any gear switch or so...

I did only use a branch of a powerline in the middle (behind the centerpiece thing), where power comes on when car is started ... so it goes ON when the car is started ... and OFF when it is shut down ...

So always on ... all the time ... You start the car and an image from the rear (on the monitor) comes up ...

Only ... with the little auxiliary switch I can turn the monitor on ...

So the monitor is always on when I drive ...

Peter

[tarquin]

so Peter, are you saying that you utilised the reverse gear switch even though in your system you don't need to. Are you using it for convenience so you don't have to switch it on manually when reversing but let the gear switch do it for you

david

NOPE, nope and no ... NOT using any gear switch or so...

I did only use a branch of a powerline in the middle (behind the centerpiece thing), where power comes on when car is started ... so it goes ON when the car is started ... and OFF when it is shut down ...

So always on ... all the time ... You start the car and an image from the rear (on the monitor) comes up ...

Only ... with the little auxiliary switch I can turn the monitor on ...

So the monitor is always on when I drive ...

Peter

Ok Peter,

It looked like from the pictures that you took 2 wires from the centre consul, and the next pic was of the switch. It was an assumption on my part. I now know it was power from the loom.I have to find the contacts for my switch otherwise I can't view the camera except when its in reverse.It is the only way the sat nav will switch to camera input mode. No worry I will find it.

David

[tarquin]

Peter

Had the dash out again today Have located the 4 wire input to the TNS510 The wiring colour scheme mental, Screen is self explanatory , Black wire=6volt live , White = -6v and Red = video in.!! Now the camera from MR T is a 6volt one (Thanks MR T) NOT!!! Now I could build a voltage inverter but i would have to build a very good filter as the inverter would produce un-wanted frequency's at around 16khz that could interfere with the video signal's line timebase. I am either going to source a 12volt live from somewhere else and use the 6volts from the TMS510 to switch the 12volts to the camera via a transistor. or use a simple relay. The 6volts is only present for a short duration of about 30seconds, waiting for a response from the camera in the shape of a video waveform. When this is received by the TNS510 it stops the timer that shuts the 6volts off. Haven't even had a chance to find the wires to by-pass the reversing switch so I can have the camera on at will via a dash board switch.

David

[sweet-dentist]

Peter

Had the dash out again today Have located the 4 wire input to the TNS510 The wiring colour scheme mental, Screen is self explanatory , Black wire=6volt live , White = -6v and Red = video in.!! Now the camera from MR T is a 6volt one (Thanks MR T) NOT!!! Now I could build a voltage inverter but i would have to build a very good filter as the inverter would produce un-wanted frequency's at around 16khz that could interfere with the video signal's line timebase. I am either going to source a 12volt live from somewhere else and use the 6volts from the TMS510 to switch the 12volts to the camera via a transistor. or use a simple relay. The 6volts is only present for a short duration of about 30seconds, waiting for a response from the camera in the shape of a video waveform. When this is received by the TNS510 it stops the timer that shuts the 6volts off. Haven't even had a chance to find the wires to by-pass the reversing switch so I can have the camera on at will via a dash board switch.

David

Pfieuw... that makes it complicated. You would expect .. just power on the camera during reverse (by a switch).. And not such a complicated way of sending / receiving / switching / operating...

Puzzles me that the 6 volts in the black wire in the screen can not be used?

Your idea of taking 12 volt elsewhere and using that 6 volts as a switch sounds good.

Questions,

Would it not be better to take the camera back and get a 12 volt one?

But then again ... your main monitor(sat nav) has to switch to monitor mode.... amaai... trouble in paradise... :(

Success,

Peter

[tarquin]

Hi Peter

It would need a 6volt camera. Which seems MR T had made special. Cant really be bothered to try to find a 6 volt one plus the one i got is the style i want. It seems that not only does the satnav put out 6volts to power their camera, it was a red herring that the screen then switches to aux video input. It requies a 12volt feed from the reverse switch. Its not a problem i am building an interface. Will document it all later.

David

[tarquin]

Ok, so today i designed an interface so you can use any 12volt camera with your TNS510 multi-screen. Pictures below. Normally you would have to use the MR T camera which is 6v. Sorry if you already have one fitted but for me its not very discreet.It sticks out like a block in the back of your nice smooth car. I intend to fit a camera in the number plate, not to be covert just because it would fit almost flush and out of the way. I don't know about MR T's one but the one I have found also has a distance grid built into the camera. Any way I just strung it together and it worked fine so have made up a circuit board with DC plugs and sockets from Maplin and mounted it in a small box. The last picture is not the finished article but just needs the wires soldering to the sockets, lid on and it installed. I have included a bypass switch so you can have it on without being in reverse. Pleased with the results Pic 85 points to the 4 wires you need to connect to, pic 86 points to the green wire from the reversing circuit which has to have 12v on it to switch the TNS510 into video input mode.

David

[tarquin]

Quickly finished the interface.

Thinking of making a small video switch so I can watch either a portable DVD player or of more interest to me, I can recover video output from my iPhone and bluetooth audio to the Speakers and screen so I can watch youtube and loaded videos, Face time, Skype video etc etc etc. Before I get comments, parked up of course

David

[sweet-dentist]

Quickly finished the interface.

Thinking of making a small video switch so I can watch either a portable DVD player or of more interest to me, I can recover video output from my iPhone and bluetooth audio to the speakers and screen so I can watch youtube and loaded videos, Face time, Skype video etc etc etc. Before I get comments, parked up of course

David

Great work David... my compliments!!!

I put the camera in the plastic of the back of the car / after lowering the numberplate. And then above it... the camera is chrome plated and long, with lens in an angle.. You have seen it..

On my Previa it was mounted left of the numberplate. Many mistakes have been made when driving backwards... the image is distorted (of center) and then you do not drive streight...

This is an example of my camera...

And the lowered numberplate...

[tarquin]

Hi Peter

Thanks for the info on the view from the camera when at the side of the number plate.When I have fitted the wiring loom and interface I have made, I will have a phono socket and a DC socket floating. My camera is on a long lead with the opposite connectors so I can roam with it to see where the best place is for me before drilling holes. Pic's are of the wiring loom i made today.Does your camera internally generate a distance grid.?

David

[sweet-dentist]

Hi Peter

Does your camera internally generate a distance grid.?

David

Sorry David.. but it just gives an image / that's it.... I can estimate where about the curb would be... when I look at the side of the monitor... I got used to it..

I do remember that the Previa had lots of lines on the monitor.. You could choose between parking in straight line or parallel.. it would give you directions with a moving "box" in lines...

You wood move the steering wheel and the "box" was supposed to be put and kept in the parking space.... and then back the car in the space...

Actually it was "crap" .. it made parking a lot more difficult.. ha ha ...

Never ever used it... but once... the first time...

Tomorrow when it is light I will make a photo of the car next to a curb and show you what the monitor shows... :-)

Good work BTW...

Peter

[tarquin]

Hi Peter

I bought the camera as a rear camera. The grid i am seeing is generated with meter markers built in. will take a pic when I fire it up maybe tomorrow. I have seen the moving grid on the PRIUS as I sat in one and the sales man was showing me how it parks itself. wasn't impressed and can see how confusing it can be. Not sure if I am going to use my camera for reversing. Probably just as a gadget . I like a gadget or 2.

David

[tarquin]

Peter,

I had a slight problem with the control of the TNS510 On a normal car the reverse switch is what it says it is and is a simple affair.Not so on the iQ. The switch talks to the ECU which in turn talks to the TNS510.

When I applied my own 12volt feed to the TNS510 , switched by my bypass switch. The engine management alarm came on along with the air bag alarm and the traction control indicator!!!!!!!.I was a worried man for a while. Removing all the offending cables, the alarms would not go so i disconnected the Battery for a couple of mins. When I re-connected it, the engine management alarm had gone but the air bag one remained. I then disconnected it again, this time for half an hour.When re connected all was ok.I looked into it and decided that when my 12v was applied to the TNS510 , it also went back down the ECU feed the wrong way causing the ECU to freak out. So I fitted 2 iN4006 diodes in the cables so the 12v feeds only went one way towards the TNS10. All is now well.

Some pics of where i fitted the in-line fuse and the illuminated bypass switch and a view from the camera with its grids . I have not fitted the camera to the car because I am going to wander around with it whilst looking at the display to see where i want it

David

[sweet-dentist]

Peter,

I had a slight problem with the control of the TNS510 On a normal car the reverse switch is what it says it is and is a simple affair.Not so on the iQ. The switch talks to the ECU which in turn talks to the TNS510.

When I applied my own 12volt feed to the TNS510 , switched by my bypass switch. The engine management alarm came on along with the air bag alarm and the traction control indicator!!!!!!!.I was a worried man for a while. Removing all the offending cables, the alarms would not go so i disconnected the battery for a couple of mins. When I re-connected it, the engine management alarm had gone but the air bag one remained. I then disconnected it again, this time for half an hour.When re connected all was ok.I looked into it and decided that when my 12v was applied to the TNS510 , it also went back down the ECU feed the wrong way causing the ECU to freak out. So I fitted 2 iN4006 diodes in the cables so the 12v feeds only went one way towards the TNS10. All is now well.

Some pics of where i fitted the in-line fuse and the illuminated bypass switch and a view from the camera with its grids . I have not fitted the camera to the car because I am going to wander around with it whilst looking at the display to see where i want it

David

Pfff.. WOW David... that was a worried man indeed... Djeezuss...

Good to hear about the diode.. that it works... :)

Nice switch by the way.... :)

I see what you meant with the distance-lines on the monitor... so these are built in?

Great job... YES..(I would really freak out when the ECU is involved ... pfieuw... "close-call buddy"...

Peter

[tarquin]

Peter,

I had a slight problem with the control of the TNS510 On a normal car the reverse switch is what it says it is and is a simple affair.Not so on the iQ. The switch talks to the ECU which in turn talks to the TNS510.

When I applied my own 12volt feed to the TNS510 , switched by my bypass switch. The engine management alarm came on along with the air bag alarm and the traction control indicator!!!!!!!.I was a worried man for a while. Removing all the offending cables, the alarms would not go so i disconnected the battery for a couple of mins. When I re-connected it, the engine management alarm had gone but the air bag one remained. I then disconnected it again, this time for half an hour.When re connected all was ok.I looked into it and decided that when my 12v was applied to the TNS510 , it also went back down the ECU feed the wrong way causing the ECU to freak out. So I fitted 2 iN4006 diodes in the cables so the 12v feeds only went one way towards the TNS10. All is now well.

Some pics of where i fitted the in-line fuse and the illuminated bypass switch and a view from the camera with its grids . I have not fitted the camera to the car because I am going to wander around with it whilst looking at the display to see where i want it

David

Pfff.. WOW David... that was a worried man indeed... Djeezuss...

Good to hear about the diode.. that it works... :)

Nice switch by the way.... :)

I see what you meant with the distance-lines on the monitor... so these are built in?

Great job... YES..(I would really freak out when the ECU is involved ... pfieuw... "close-call buddy"...

Peter

Take a look at my last post on Duff fuel. Its interesting.. Regarding the switch, Maplin do a black one and a chrome one. All the packaging and description are the same. except when I was in the shop looking at both, the chrome one was a latch able one and the black one momentary!! I wanted the black one, so I bought both and took them apart and swapped the latching arrangements over. Works lovely now and looks great at night.

Yes the grid is built into the camera,, The camera is a digital camera, not an analogue one so has the ability to electronically generate things like that. It is also PAL and NTSC tv standards. Producing 2 different colour burst frequency's and line and frame rates. Dead clever.

David

[sweet-dentist]

Nice, David..... Nice...

Peter

[tarquin]

Camera all in and working

David

[Soeley]

Nice and neat David

[tarquin]

Nice and neat David

Thank you very much. The good thing is that if I don't want it in for some reason, all I do is replace the number plate Job done!!

David

[kesh56]

Hi to all Toyota Club Members :D

Ive got a Toyota Yaris 1.0 2006. Ive got a TNS510 in the vehicle, looking to put a non genuine camera in the vehicle. Ive tried going through the recent posts, but I just need a bit of clarification. Ive got a 12v camera for a start. Ive plug the video feed wires to the back of the TNS510 and I have also provided a 12v feed to the pin where it detects if the vehicle is reverse or not due to my vehicle not having a supplied cable. But still nothing happens. Any thoughts or ideas?

Thanks

Kesh

[tarquin]

Hi Kesh

Firstly. Is there a camera normally supplief by MR T for the yaris? The reason i ask is if there isn't one it could be the TNS 510 supplied to the yaris has different software. Assuming there is.then the first thing is if you are only going going to use the camera when reverse gear is selected then the only wires you need are:-

1. The video lead with the screen connected to chassis

2 the inner video lead connected to the Red wire video input (assuming the colour code is the same for a Yaris)

3. The 12v camera supply. This is connected to the reversing light and supplies the12v to the camera when reverse gear is selected and that is it. The ECU sends the 12volts to the TNS when it gets a command from the gearbox when reverse is selected. DO NOT CONNECT A 12 VOLT FEED TO THE GREEN WIRE. It has the potential of taking out your ECU. It has to be protected by diodes in a special way

David

[craggle]

And now I want the satnav fitted to my car, Thanks guys. :)

Actually it's seriously expensive to fit to an already built car, maybe I'll have a crack at building a TomTom into the dash somewhere.

Craig.