Securitex Compressor & Paint Booth Lone Worker Safety and Security Division

Lone Worker Alarm System (Emergency Man down Alarm System) Securitex-MD18

The above system complies with the IMDA Singapore Standards DB104854

Overview of System

Many Industries that manufactured Air-conditioning Compressor. Cooling Unit Compressor or even compressor that use for grinding and polishing process in Aircraft maintenance workshop etc due to space constrained usually required to work alone especially in the nightshift or public holiday etc. Securitex is aware that the safety and security of this staff is very important as such we work with industry partner to bring to this industry the Lone Worker Alarm System model Securitex-MD18-CP version. With the MD18 the safety and security of this lone worker can be monitored from a remote site thus in the event they are being attack or they become incapacitated due to sudden illness or injury at work, emergency assistant can be dispatch at the earliest time possible.    

Securitex MD-18

Securitex Office in Singapore understand the needs for such system and has come up with Securitex Wireless Compressor Room Lone Worker System. The Compressor Engineer and Technician lone worker will carry the Wireless Remote Transmitter Call MD-18

Securitex MD-18. The  system is designed and manufactured using high quality material and electronic component to ensure the system is reliable and user friendly. This system is use for Compressor Staff safety monitoring especially when they are working alone. MD-18 allow for single worker application and up to 18 workers to use the system in group. It can be configured as individual user or group use.

The type of protection / detection include:

  1. No-motion detection.

  2. Tilt-detection.

  3. Tilt & No motion detection.

How worker carry them?

Worker carry the MD-18 usually secured them on their waist using the pouch provided on their waist belt, they can also place them inside their breast pocket or on any upright convenient location on their body. The MD-18 is usually place inside a customized carrying pouch. 

 

                Step 1                                 Step 2                                        Step 3

Detection Method description:

No motion Detection

If the user of the MD-18 keep in the same position without moving for a predetermines period of time example the person lose consciousness on the seat, bed or floor, the MD-18 unit alarm will beep for several seconds as pre alarm warning to the user that the main alarm is about to activated. If he / she is only dosing off then the alarm will wakes him up and a slight movement will reset the system to prevent full scale activation.

Tilt-Detection

If the user of the MD-18 lean over 45 degree for a predetermines period of time, example the person carrying the MD-18 inhales toxic fumes or overcome by allergy of the cleaning agent or the technician get electrocuted when doing electrical maintenance and lose consciousness on the seat or floor, the MD-18 unit alarm will beep for several seconds as pre alarm warning to the user that the main alarm is about to activate, if he / she do not react to this alarm and remain in the tilt position the system will then activate a full scale alarm.

Tilt & No-Motion Detection

If the user of the MD-18 lean over 45 degrees and no motion for a predetermines period of time, example the person carrying the MD-18 inhales toxic fumes or overcome by allergy of the cleaning agent or the technician get electrocuted when doing electrical maintenance and lose consciousness on the seat or floor, the MD-18 unit alarm will beep for several seconds as pre alarm warning to the user that the main alarm is about to activate, If he / she do not react to this alarm and remain in the tilt position the system will then activate a full scale alarm.

Pre-alarm Function

We have designed the MD-18 to have a pre-alarm feature so as to ensure that false alarm is kept to minimum. Example if the worker bent over to pick a tool on the floor or tie his / her shoe lace, the alarm will not set off.

Dip switch setting and AAA rechargeable Battery

The above detection setting is very easy to program by just flipping the dip switch behind the MD-18. The MD-18 uses also uses normal AAA rechargeable battery that is easy to obtain and this battery can use  normal adapter to charge.

Normal AAA Rechargeable battery X 2   MD-18 Charger

Alarm activation

When the lone worker is incapacitated due to illness, injury or overcome by gases etc and he / she ignore the pre-alarm by up-righting the unit, a radio alarm transmission will be sent and the alarm will go off fully accompanied by flashing LED to attract attention.

Radio Alarm transmit

The radio alarm transmitted by the distress user MD-18 can be detected and latched to another co-worker MD-18 unit located nearby or on site (such as a Control Room). There is an audible warning or vibration and the sufferer unit is identified by a numbered light. The audible alarm and the light will stay illuminate until the man down is reset.

Panic Alarm

If the worker is in an emergency condition his / her MD-18 also has a panic button on the unit which the distress worker can press to send an instant radio alarm signal to call for help immediately. The alarm will go off fully accompanied by flashing LED to attract attention.

Group User receive MD-18 emergency signal from fellow colleague

The MD-18 also have a unique feature that can allow the emergency signal from the emergency activated MD-18 to be display on another member MD-18 so as to alert their members nearby that their colleague are in trouble.

More then 3 members in trouble

If there are 3 members having trouble at the same time the other members of the same group will receive the 3 alarm signals and display the corresponding numbers in sequence 1st to 3rd in order.

MD-18 Transmitter lighting indicator showing the various status.

Master Base unit MD-18B

The master base unit can be installed on the security control room, vehicle, maintenance office, Open field command centre or the process plant control room. The base unit has a 120db loud alarm, warning light and 7 Segment LED display to indicate the code of the Emergency MD-18 and also to announce the emergency condition. The MD-18B has also built-in NO/NC relay output which can be use to integrate to other call device like the GSM-SMS controller.

 

 

 

 

 

 

 

Master Base Station MD-18B showing the antenna, siren unit, lighting unit, 7 segment display and also the connector input and output

Base Unit MD-18B Terminal Block Layout

NO Description
1 Power indicator
2 Battery Low Warning Indicator
3 Green-Battery Full Charge
4 24 VDC input
5 12 VDC input
6 Power output for Alarm
7 Power output for Warning Light
8 Relay output NO / NC / COM
9 Jack for Switching Power Supply Input
10 Connector for 7 Segment LED display

Specification

   
Man Down Unit (MD-18)  
Power AAA/UM-4 Rechargeable Battery X 2
Battery Duration 3 days for continuous use after full charged
Battery Charging Time approximately 6 hours
Weight 80g (including battery)
Size 93mm (L) X 56mm (W) X 17mm (T)
Effective Range 200meters radius (outdoor) 40meters trough wall (indoor)
Alarm Sound 95dB
Receiving Sensitivity -80dBm
Output Power < 10mW (10dBm)
Frequency Band 868Mhz or 916MHz

Man Down Unit Base Station (MD-18B)

Man Down Unit (MD-18B)  
Power 12VDC Rechargeable Battery or 12VDC switching Power supply
Battery Duration 1 day for continuous use after full charged
Battery Charging Time approximately 5 hours
Weight 2200g (including battery and the 7 segment LED display)
Size Base 215mm (L) X 150mm (W) X 135mm (H)
Size 7 Segment Display 120mm (H)
Effective Range 200meters radius (outdoor) 40meters trough wall (indoor)
Alarm Sound 120dB
Receiving Sensitivity -80dBm
Alarm Output Relay NO / NC
Frequency Band 868Mhz or 916MHz

Where can the MD-18 be used other then in Compressors manufacturing industries.

Industries

a.         Plant and refinery location (non-hazardous environment only)

b.         Waste disposable plant

c.         Laboratory

d.         Off site guardhouse

e.         Maintenance workshop etc.

Marine Application

a.         Marine Vessel boiler room

b.         Bridge watch.

c.         Deck watch.

d.         On board vessel patrolling.

e.         Service and maintenance onboard vessel etc.

The system configuration is very modular and fully expandable from standalone system to a fully integrated system where software can be use to track the individual personnel duress signal. We can also incorporate the GSM mobile terminal to have the Securitex MD-18 when activated sent an SMS message to the call centre etc. The MD-18B Base Unit can either be fixed in a pre-determined location or it can be a mobile unit. The mobile unit base station is preferred as the base station can be move around to ensure the best GSM signal can be captured by the system. 

Location of the equipment

The Transmitter (SECURITEX MD-18) will be carried by the hotel lone worker.

The Master Control Unit (SECURITEX MD-18B) will be installed in the Manned Control Room or any location where the Radio Frequency from the MD-18 can be received.

General System Operation 

Before the lone worker is dispatch to the site. He / She will need to register with the Control Room where the MD-18B is installed. The Control room Officer-in-charge will need to brief the lone worker on the use of the transmitter (MD-18). (In the event of an emergency or scheduled time reporting, the lone worker will need to press the button once or twice). 

Operation will be subject to the Pre-arrange Standard Operation Procedure (SOP).

Test activation

With all wireless system there are always a chance that the signal may not be received by the MD-18B. In such case when the lone worker has reach his designated work location, he will then need to report his last location and then test activate his transmitter to ensure the transmitted signal is received by the MD-18B.

What happen if for any reason the transmitted signal from the MD-18 did not reach the MD-18B then the MD-18B will need to be relocated within the Frequency Operation Range.

CUSTOMIZATION OF SECURITEX LONE WORKER SYSTEM (LONE WORKER MONITORING CONTROL PANEL)

Figure 1 show example of SECURITEX BIO SAFETY LEVEL 1-4 LONE WORKER CONTROL PANEL

Figure 2 show example of LONE WORKER CONTROL PANEL for a chemical plant

 

What is LONE WORKER MONITORING CONTROL PANEL some may ask?

Securitex Lone worker monitoring control panel (SLWMCP) is a piece of equipment / system that is installed in the Manned Control Room (MCR) to monitor a group of LONE WORKER working within a large premises. The SLWMCP can be designed to monitor a single lone worker or a group of lone worker. In the group lone worker control panel, there will be multiple indicators which is link to the individual lone worker transmitter. When the lone worker is incapacitated at the location they are working, the control room panel will give out an audible alarm with a visual indication to determined which lone worker is down. With this indication the control room can then send rescuer to the site to look for the Lone Worker.

Mobile Phone as Lone worker transmitter.

Some may ask can they use the workers own smart phone with LONE WORKER apps download and install from 3rd party apps developer to work with SECURITEX LONE WORKER CONTROL PANEL. The answer is yes for some apps. Please contract us for discussion by sending email to sales@securitex.com.sg  

We are in the Marine, Oil and Gas business. We need an explosion proof LONE WORKER system that uses approved Intrinsically safe or explosion proof or ATEX or Ex mobile phone as LONE WORKER Transmitter and integrated to SECURITEX LONE WORKER CONTROL PANEL is this possible?

Yes you can, please contact us at sales@securitex.com.sg to discuss

For more information on this system please contact SECURITEX ELECTRONIC SYSTEMS ENGINEERING @ sales@securitex.com.sg

For more information on this system download the brochure here (CLICK)

Download System Presentation

  • We also do off site customization on the above lone worker system for special application.

    To know more about this product, please feel free to contact us at the following: T: +65 67852171 F: +65 65850107 Email: sales@securitex.com.sg


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