Current Status

1. Sensors except for one sensor were received. -> Printed circuit board assembling will be started.

2. Drawing the box for Raspeberry Pi and sensors -> We are waiting for the test box. PFF10-4-7W for sensor and SPCM181810T for Raspberry Pi + Power line

3. Software: almost done. (database)

Discussion issues

1. Power cable 3 m (Internal budget will be used.)
2. LAN cable ?? m (10 m is enough?) (Which grant will be used?)
3. IP issue (KAGRA DAQ IP system) At least 12 IPs for KAGRA DAQ network are required. Please negotiate this to Miyakawa-san.
4. 12 Fiber Media Converters are required for installing. (Please check this to Miyoki-san? Miyakawa-san?)

5. Installing rack or table. (Which grant will be used?) PCR-54WM

6. Timing issue: Outside NTP? NTP server for KAGRA from KAGRA timing system

Aim

To monitor the tunnel environment except the center and end ares.

Construction

1. Sensor (Raspberry Pi 2B based + EPICS)
2. Monitor map system (Not yet)

Monitor map

We should decide the required sampling rate and resolution. Target: 10 Hz sampling

1. Temperature (SHT-25)

2. Humidity (SHT-25)

3. Air pressure (BM1383GLV: Rohm)

4. Magnetic field (AMI306R: Aichi Steel)

How many?

Every 200 m, we put the sensor. The estimated number of the sensors is 30.

Updated information: initial install number at the network point w/ wired LAN is 6 for each arm.

Special Meeting

Meeting Information w/ Miyo, Yamamoto, and Shikano on 10/27/2016

Schedule