I wanna buy parking sensors for my cx-9
Is any of these good?
http://parkingsensors.net/
Advice needed. (yes)
Is any of these good?
http://parkingsensors.net/
Advice needed. (yes)
Backup Sensors
- Thread starter 100$ GUY
- Start date
- :
- 2022 CX-5 Turbo
The only problem I see is $$$$.
There are much better deals on eBay.
I have installed backup sensors on Prius and Odyssey myself.
The black one (unpainted) works well. The silver one always gives me
false warning on freezing day. Avoid painted one in my opinion unless it is the
true color of the plastics, not painted over.
There are much better deals on eBay.
I have installed backup sensors on Prius and Odyssey myself.
The black one (unpainted) works well. The silver one always gives me
false warning on freezing day. Avoid painted one in my opinion unless it is the
true color of the plastics, not painted over.
better quality or/and better price??
My concern is quality, I mean, 120 bucks doesnt seem that much money, well I thought at least.
- :
- 2022 CX-5 Turbo
Let us face it. They are all made in China.
I bought a set from eBay, and it still works after 3 years
and has not given me false alarm so far.
Go with the unpainted(black) or original plastic color.
My 1st set was painted, and it gave me false alarm in winter. Very annoying.
I no longer have that vehicle.
P.S. I bought it from this guy in Hong Kong:
http://stores.ebay.com/Pro-wholesale-Mania
I went with the smaller display (LED one) for my Prius. I am thinking about the same for
my CX-9 when I have time.
I bought a set from eBay, and it still works after 3 years
and has not given me false alarm so far.
Go with the unpainted(black) or original plastic color.
My 1st set was painted, and it gave me false alarm in winter. Very annoying.
I no longer have that vehicle.
P.S. I bought it from this guy in Hong Kong:
http://stores.ebay.com/Pro-wholesale-Mania
I went with the smaller display (LED one) for my Prius. I am thinking about the same for
my CX-9 when I have time.
Last edited:
rotorheader
Member
e-Bay has the Autopage BPS-4 for $60.00 shipped. I've installed these in a Mazda3 HB and in my Mazda6. About a two-hour job, taking my time, and doing good work.
Rotorheader, how well do these work? Any false alarms?
I wanted to install a back up camera on my 09 GT but am thinking of going with just back up sensors now because it's a lot cheaper. The back up camera on the rear view mirror display is so small that I'm not sure how useful it will be.
Would the sensors interfere with the BSM sensor units?
What do you guys think?
- :
- 2022 CX-5 Turbo
danz75,
The problem with ultrasound sensors is that they can't distinguish within 1-2 ft!!!
Once it gets closer than 1-2 ft, it gives out a constant tone. In many parallel parking situations,
this makes it useless. With camera, you can get within inches.
No on BSM. BMS is based on Radar. Ultrasound and Radar are totally unrelated. Radar detects only metal objects (even concrete barriers - steel rod inside). Ultrasound is based on sound wave bouncing back (affected by rains, snow on sensors, etc.)
Besides, BSM activates above 20mph going forward. Backup sensors is for backing up. I don't think they will activate simultaneously.
Location wise, BSM radars are located one both sides of the rear bumper. Backup sensors are positioned toward 5-7 o'clock.
There is no conflict in installation, either.
The problem with ultrasound sensors is that they can't distinguish within 1-2 ft!!!
Once it gets closer than 1-2 ft, it gives out a constant tone. In many parallel parking situations,
this makes it useless. With camera, you can get within inches.
No on BSM. BMS is based on Radar. Ultrasound and Radar are totally unrelated. Radar detects only metal objects (even concrete barriers - steel rod inside). Ultrasound is based on sound wave bouncing back (affected by rains, snow on sensors, etc.)
Besides, BSM activates above 20mph going forward. Backup sensors is for backing up. I don't think they will activate simultaneously.
Location wise, BSM radars are located one both sides of the rear bumper. Backup sensors are positioned toward 5-7 o'clock.
There is no conflict in installation, either.
Last edited:
CX9 SportOwner
Member
I'd get a camera rather than sensors. Then you are actually looking, and can react before it's too late.
So many accidents with children being backed over involve cars with sensors. The driver was relying on the sensor to tell them if anything was in the way. The problems was what the sensor either didn't detect their child, or the child ran behind the car and by the time the sensor detected them, relayed the signal to the alarm, and the driver reacted to the alarm, it was too late.
Gadgets can help, but there is still no substitute for looking. A sensor can't react to a shadow BEFORE the danger exists. A human can, whether watching directly, or on a monitor. Also, no machine can judge distance like a human.
So many accidents with children being backed over involve cars with sensors. The driver was relying on the sensor to tell them if anything was in the way. The problems was what the sensor either didn't detect their child, or the child ran behind the car and by the time the sensor detected them, relayed the signal to the alarm, and the driver reacted to the alarm, it was too late.
Gadgets can help, but there is still no substitute for looking. A sensor can't react to a shadow BEFORE the danger exists. A human can, whether watching directly, or on a monitor. Also, no machine can judge distance like a human.
Checkout the new Electromagnetic sensors! Its a No holes parking sensor different from the typical Ultrasonic sensors. Please check this website for more info. Hope this helps!
http://www.parkingdynamics.co.uk/
Regds
Kingz
http://www.parkingdynamics.co.uk/
Regds
Kingz
- :
- 2022 CX-5 Turbo
kingz,
I was curious how it works so I read thru the website.
I get it now. Here is the keyword, "ENTERS".
"Mass is then monitored by the control unit by translating this into a voltage. When an object (i.e. people, kerbs, cars, etc) heavier in mass than the magnetic field ENTERS this elliptical zone, an increase in voltage is detected by the control unit and you are then informed by a series of audible tones or display (PD1-Vision only) how close you are to the object. You can then manoeuvre accordingly with plenty of time to react."
The system detects the "delta change" in magnetic feedback (translated into voltage) as the vehicle moves. i.e. if there is a kid (God forbid) hiding behind the bumper, this system will not detect it since it sets a base line reading (which includes the kid hiding behind) and then starts to detects changes as it moves (forwards or backwards). The kid becomes "invisible" to the system.
Note that magnetic field is not as directional as ultrasound. Besides, I doubt that you can "pin point" which side has the obstacle. Ultrasound can do that thru multiple sensors. Basically, this makes it a "motion detector". Instead of the object moving, the vehicle is the one that moves. I believe a similar magnetic system is being used on Cadillac.
In summary, key drawbacks of such a system are
- it can't see stationary object (i.e. kid right behind bumper - when the vehicle moves - it is too late!)
- it is very direction-insensitive (unlike ultrasound which achieve directional detection thru multiple sensors)
Anyway, that is how I interpret their website. Discussion is welcome.
I was curious how it works so I read thru the website.
I get it now. Here is the keyword, "ENTERS".
"Mass is then monitored by the control unit by translating this into a voltage. When an object (i.e. people, kerbs, cars, etc) heavier in mass than the magnetic field ENTERS this elliptical zone, an increase in voltage is detected by the control unit and you are then informed by a series of audible tones or display (PD1-Vision only) how close you are to the object. You can then manoeuvre accordingly with plenty of time to react."
The system detects the "delta change" in magnetic feedback (translated into voltage) as the vehicle moves. i.e. if there is a kid (God forbid) hiding behind the bumper, this system will not detect it since it sets a base line reading (which includes the kid hiding behind) and then starts to detects changes as it moves (forwards or backwards). The kid becomes "invisible" to the system.
Note that magnetic field is not as directional as ultrasound. Besides, I doubt that you can "pin point" which side has the obstacle. Ultrasound can do that thru multiple sensors. Basically, this makes it a "motion detector". Instead of the object moving, the vehicle is the one that moves. I believe a similar magnetic system is being used on Cadillac.
In summary, key drawbacks of such a system are
- it can't see stationary object (i.e. kid right behind bumper - when the vehicle moves - it is too late!)
- it is very direction-insensitive (unlike ultrasound which achieve directional detection thru multiple sensors)
Anyway, that is how I interpret their website. Discussion is welcome.
Last edited:
Hi Ceric,
I did not know much about both the sensor's however just recently saw an electromagnetic rear sensor fitted on my friends CX9, thats when I started reading about it! (Was surprised because I could not see any sensors fitted on the rear bumper)
The FAQ's in the above website "claim" that when you have the vehicle on reverse gear and if there is any object within 20 cms range then the sensor gives out a continous beep !
However I can check this on my friends vehicle!!
As a personal choice (apart from safety) I liked these sensors since they are hidden and no holes needs to be drilled into the bumpers.
Regds
Kingz
Has anyone tried these on their cx-9? im thinking about getting these because i dont wanna drill holes in my cx-9.. (dance)
- :
- 2022 CX-5 Turbo
kingz,
The strip is placed BEHIND the bumper surface. Therefore, it is invisible.
Magnetic filed can easily penetrate plastics (that is why it says that this thing does not work on metal bumper vehicles - e.g. some pickup trucks).
Objects distort magnetic field in various degree (metal absorb it much more).
The principle is based on
current reading - baseline reading => detection!
How it builds the baseline reading is interesting to me.
Also, pay attention to the possibility of false warnings (it admits about rains, snow, etc.)
Some painted ultrasound sensors have similar issues. Raindrops, snows on the sensors
bounce the ultrasound waves back causing constant beep (too close), which making it
useless on snowy condition and rainy days. Best sensors could alleviate the issues, of course.
Anyway, I still think visible light camera that enables drivers to make judgement is
still the best auxiliary solution.
The strip is placed BEHIND the bumper surface. Therefore, it is invisible.
Magnetic filed can easily penetrate plastics (that is why it says that this thing does not work on metal bumper vehicles - e.g. some pickup trucks).
Objects distort magnetic field in various degree (metal absorb it much more).
The principle is based on
current reading - baseline reading => detection!
How it builds the baseline reading is interesting to me.
Also, pay attention to the possibility of false warnings (it admits about rains, snow, etc.)
Some painted ultrasound sensors have similar issues. Raindrops, snows on the sensors
bounce the ultrasound waves back causing constant beep (too close), which making it
useless on snowy condition and rainy days. Best sensors could alleviate the issues, of course.
Anyway, I still think visible light camera that enables drivers to make judgement is
still the best auxiliary solution.
Agree 100%(cool)
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