Polar Owncal

Counts and displays calorie expenditure.

Polar Owncal Feature explained
Quoted : "Counting of the calories burned begins immediately when your heart rate has reached the OwnZone™, which is also the most effective and safe heart rate zone for calorie consumption."

Polar Ownzone Feature explained (in brief)
Faster OwnZone® (basic)
Individual determination of your optimal target heart rate limits.
The Polar OwnZone® feature determines an individual and safe light to moderate intensity exercise zone (65-85% HRmax). Polar Heart Rate Monitors use multiple methods for determining your OwnZone®. The primary method is to measure your heart rate variability during the warm-up period before exercising. It guides you through an appropriate warm-up routine and automatically determines a safe and effective exercise heart rate zone - your OwnZone® - while taking into account your current physical condition.

Alternatively, the Polar Heart Rate Monitor will automatically calculate OwnZone® limits based on your age-predicted maximum heart rate (220 minus age).

warmable sole for your cold feet

questions

it's been so desperating since after almost 2 weeks I still haven't find the sensor for my thesis.

meanwhile there are some questions need to be solved :

how to measure activity, usually the researchers mapped the activity from the table.

why in last 8-10 years there are so many publications on thermal comfort but now not anymore.
was it only a trend or the industry thought that thermal comfort can makes no money.

Thermal Comfort Datalogger 1221

KNX02

Distributed smart sensor system for indoor climate monitoring

Highlights :
- smart home automation
- multi-gas sensor arrays and person detection sensors
- EIB-RF-based wireless communicaton
- wireless sensor module measures mean air temperature, relative humidity, CO2 concentration.
- PMV calculation from measurements and knowledge about the room and person's behaviour and clothing

interested things

Implantate, die telefonieren können

Sensor Wear

TY4700

I read the first paper once again, this time sentence by sentence. Also, the TY4700 is a wall-mounted comfort sensor consists of a sensor unit and a processor unit. The sensor unit measures only a temperature in thermal environment index which combines air temperature, radiant temperature, and air velocity. The parameters humidity, clothing, and activity is added as preset values.
The sensor is tested in a moderate room environment, the humidity is assumed to be 50%, clothing to be 0.75 and metabolic rate to be 1.2 met (sedentary activity). Then all six parameters is converted in processor unit to PMV output.

reading conclusions

In 1994 Yamatake-Honeywell in Japan has developed a Comfort Sensor TY4700. This comfort sensor measures the four physical variables and send it to the control unit. How they get the human parameters : activity and clothing is not mentioned. Later I downloaded the TY4700A Specification from their website, but more about device installation. I'm not sure whether this device has PMV as output, or it measures only the physical variables for PMV calculation.

In 1995 LG Electronics Research Center in Seoul has designed and fabricated a silicon-based TCS (thermal comfort sensing) device. The 4 inch sensor measures air temperature, radiation, humidity and air flow at once, human parameters are not measured but just added for the calculation.

first meeting

Here we go.

The first meeting was such a brainstorming what have been done by other researchers all over the world and how can I start from there. I got three more papers, which also 8-11 years old.

Tasks for next 2 weeks : searching in internet, whether we can buy a finished sensor, especially sensors that included activity-and-clothing sensor. Second option, clothing as user-defined parameter, and activity will be measured from the heart pulse.

Ask :
1) how much the sensor costs, when it can be delivered, the most important which interface (or also data bus) the sensor had.
2) how the PMV is calculated in concern of human factors.

deciding

Today I decide to take the thermal comfort as the topic for my master thesis.

From Felix I get two (very old) in-german-papers written by E.Mayer,
some standars DIN 1946 and ISO 7730, and a nine pages copy from a german book related(I don't know which one).

The very first meeting with all supervisors will be on 21th November 2005.