Datalogger

 Codal life -20 years

DSU ( Digital Scanner Unit)

Each DSU contains 8 no of digital input cards. These scanner cards contain opto couplers and multiplexer.

Each input card - 64 Inputs

Total input capacity of one DSU unit is 512 inputs (inbuilt)

Display of digital inputs in 32 row 16 column display.

Maximum 7 nos additional DSUs can be can be connected to the system so digital input capacity is 4096.

All this digital inputs are scanned at rates of 16 m sec.

ASU ( Analog Scanner Unit)

ASU contains maximum 3 nos of Analog input cards. Each input card can be connected with 8 nos of Analog Inputs. Total input capacity of the ASU is 24 Analog input channels. Maximum 4 nos of ASUS can be connected to the system.Analog input channel capacity of the system is 96. All these Analog inputs are scanned at rate less than 1 sec.

RS 232 Serial  Ports

At least 6 serial communication ports are provided for communication with other dataloggers, Central Monitoring Unit, Remote Terminal Unit,EI system, IPS system etc.

Power Supply 

Normally 24V DC  supply with battery backup is required for the system working.It can be given through DC DC converter of IPS or through SMPS charger with 80 AH battery with back up of 4 to 6 hours. 

Storage - 10 Lakhs

Features

On line Relay status 

On line faults

On line simulation 

Remote monitoring of stations with help of stations with help of networking.

Inbuilt room temperature sensor 

Software Objectives 

Predictive Maintenance 

Easy identification of failures

Crew discipline 

Train charting


Comments

Post a Comment

Popular posts from this blog

CRS , CST and PCE sanction

  Validity of CST sanction   is six months .Required when we are doing any changes in existing interlocking.e.g commissioning of BPAC Validity of CRS and PCE sanction are same (01 year). PCE sanction is required only for closing the LC gate.Earlier it was with CRS, now delegated to PCE. ESP,SIP,SWRD,PD and SWR required to be attached with PCE sanction.  CRS sanction is must when do any change in interlocking,e.g.any new line is opened. Validity of CRS sanction is 01 year. CRS permission is required in following cases. a) Additions/extensions or alterations to the existing block, Signalling and interlocking installations b) Change in Block, Signalling and Interlocking installations. c) New stations temporary or permanent. d) Interlocking of level crossings, catch siding and slip sidings etc. CST Sanction   CST Sanction required in following works 1) Provision of Telephone at already Manned level crossings. 2) Provision of electrical & mechanical lifting barrier including emergency
Read more

Railway Establishment and Stores

  Max LAP approved one time - 180 days .( if available in his account). Max LHAP approved one time - 24 months ( if available in his account). Leave not due - Max 360 days in service. Can be sanctioned on medical grounds  Compensatory casual leave granted to Group C &D employees other than supervisory staff for attending on Sundays and holidays. Special casual leave    It is sanctioned for participation in sporting events/events of national importance,for scouting duties and family welfare. Special casual leave can be granted in following cases. Administration of operative society members. Participation in scouts . Participation in sports activities  Participation in railway union activities etc In bandh,curfew and national calamity. A railway Servant,who has taken CL for half a day on the afternoon of a working day due to unexpected sickness or compelling grounds and he has no CL at his credit, may as an exception to general rule,be permitted to combine half a day’s CL with regu
Read more

Telecom

                                                    Basics of Telecom Mobile Communication   Emergency Communication  Emergency Communication is provided by following means a) Emergency Socket b) 5/25 Watt VHF sets c) GSM - R ( very less percentile) d) Mobile phones available with driver, guard and staff. Disadvantage of above mode of Emergency Communication - Section controller is not able to contact train crew in moving train It can be initiated only in static condition SOS facility is not available Weight of emergency control phone is fairly heavy. GSM - R is used at very less percentile. To avoid these Shortcoming MTRC ( Mobile train radio communication) is implemented. Accidents, unusual situation, robbery in train, Locomotive failure and chain pulling etc. Features of MTRC  - Driver to Control Guard to Control Driver to station master Driver to guard Guard to train crew Train crew to gateman of gates enroute. MTRC uses GSM-R technology. MTRC has been designed on EIRENE ( European
Read more