| ITME |
Question and Answer |
| Q1 |
Is JOSN
TPMS a ‘DIRECT’ or ‘INDIRECT’ TPMS solution? |
| |
‘DIRECT’ TPMS |
| Q2 |
How can receiver get ID from sensors? |
| |
Receiver can learn IDs from its own sensors by 28 bit
signal |
| Q3 |
Any possibility that sensors could be
stolen? |
| |
Sensor needs
special tool to remove and it will only work with
original receiver.
|
| Q4 |
How robust of JOSN TPMS sensor will be? |
| |
JOSN TPMS sensor
provides media and humidity protection needed for
demanding automotive environments. These tests include
accelerated humidity testing, long-term pressure and
temperature cycling, as well as exposure to chemicals
commonly found in Tyre Pressure Monitoring Applications. |
| Q5 |
What is sensor’s output power? |
| |
< 5 dBm |
| Q6 |
What is the maximum number of sensors
that TD-2000A-X can support? |
| |
36 units |
| Q7 |
Are TD-1000A-X, TD-2000A-X, TD-3000A-X
ready for shipping? |
|
Yes, the first three products are ready for shipping now |
| Q8 |
What’s JOSN’s TPMS sensor operating
temperature range? |
|
From sensor to
receiver, they can operate between -30C to 145C |
| Q9 |
What’s the competitive advantage of
JOSN TPMS |
|
Low power
consumption and small size and light weight of its
sensors. More outstanding features please refer to our
datasheet. |
| Q10 |
Does JOSN R&D team support other
OEM/OEM project? |
|
Yes |
| Q11 |
What’s the difference
between JOSN TPMS product lines? |
| |
JOSN is trying to
expand features with original TPMS solution and JOSN is
able to provide customers no matter functionality
enhancement or customized design TPMS solutions. |
| Q12 |
How to handle rigid weather conditions
when TPMS installed? |
|
JOSN has special
design on housing to prevent water drop. Sensor is
water-proof and metal plate beside sensor is needed. We
already have strict examination on water/humidity issue. |
| Q13 |
Can the system detect the sensor module
correctly after initialization if the tyre is changed
for e.g. front left tyre put at back right while
servicing of car? |
| |
A learning phase
must be performed each time with a special sequence. |
| Q14 |
Is it possible that more than two
sensors interfere with each other? |
|
As each sensor
has its own ID and it costs very little time to transmit
signals, it’s hard to interfere with other sensors. |
| Q15 |
How precise to calculate temperature
and pressure of tyre? |
|
0.5 psi pressure
accuracy |
| Q16 |
Does JOSN have roadmap of TPMS
development? |
|
We do have and as
long as you are one of our valuable customers, we could
support you on all necessary datasheet and documents. |
| Q17 |
What’s the advantage of JOSN TPMS to
after-market? |
|
Most efficiency
and flexibility for after market as no extra cost for
labour to install sensor within tyre and no need for
wiring. Please refer to our datasheet and you could find
more. |
| Q18 |
How frequent does JOSN sensors measure
temperature and pressure? |
|
Sensors will get
data in every five second and transmit information to
receiver as long as pressure value is changed. |
| Q19 |
How to install sensor? |
|
JOSN provides two
kinds of models. Internal sensing module is mounted
valve stem of the wheel. External sensor is only screwed
onto the valve stem to take place of the valve caps. |
| Q20 |
How much is sensor’s power consumption? |
|
The sensor itself
will consume the following: idle- supply current is
???nA, pressure measurement model, consumes ???mA and
both temperature measurement and the output reading
consume ???mA. |
| Q21 |
Is it possible to
combine car alarm and JOSN TPMS together? |
|
JOSN provides
TD-3000A-X which have the two functions in one device. |
| Q22 |
Many say that it’s difficult to install
internal sensor within wheels. How does JOSN handle with
this issue? |
|
We do sort out
this issue and minimize its size and weight to the
extreme. The weight is around 10gm (Xtype) and 15gm
(Itype) and the size is almost half of others’. As a
matter of fact, JOSN TPMS TD-2000A is specially designed
to fit the needs of truck and other cars with more than
four-wheel.
|
| Q23 |
Does JOSN have other products rather
than TPMS? |
|
JOSN has
experience on developing car electronic devices for more
than 10 years. We are able to support on other ODM/OEM
projects. |
| Q24 |
How long does JOSN TPMS system will
wake up micro processor? |
|
It’s the key to save power in the battery life.
Basically JOSN calculate the power budget and the time
response for every simulation. The sensors of JOSN TPMS
system will wake up the micro processor every
???seconds. |
| Q25 |
會有掉signal的問題嗎?如果有怎麼防治? |
|
|
| Q26 |
Will JOSN provide colour LCD receiver
for TPMS system? |
|
Yes, on the
roadmap |
Downloads
｜ FQA (General 1000 2000 3000 ) 
