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Presentation on theme: "ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying."— Presentation transcript:

1 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 1 Integrus Tech SD 03.Mar.06 System Design I&O Manual Aspects to consider Planning an infra-red system

2 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 2 Integrus Tech SD 03.Mar.06 All delegates have to receive the distributed signals without disturbance. An Integrus receiver needs a minimum of 4 mW/m 2 to work without errors. (resulting in a 80 dB S/N ratio for the audio channels). Use enough radiators, placed at well planned positions, so that uniform IR- radiation covers whole area. Radiation requirements

3 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 3 Integrus Tech SD 03.Mar.06 The sensitivity of a receiver is at its best when it is aimed directly towards a radiator. Rotating the receiver will decrease the sensitivity. For rotations of less than +/- 45 degrees this effect is not large, but for larger rotations the sensitivity will decrease rapidly. The sensitivity of the receiver

4 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 4 Integrus Tech SD 03.Mar.06 The footprint of a radiator This is the floor area in which the direct signal is strong enough to ensure proper reception, when the receiver is directed towards the radiator. The size and position of the footprint depends on the: mounting height mounting angle number of transmitted carriers

5 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 5 Integrus Tech SD 03.Mar.06 Radiator footprint = L x W 90 ° Floor 0 50 M ° Floor 0 50 M ° Floor 0 50 M 20 0

6 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 6 Integrus Tech SD 03.Mar.06 The coverage area can be doubled by mounting two radiators side by side. The output power of the radiator is constant, therefore the total radiation energy is divided over the number of transmitted carriers. When more carriers are used, the coverage area gets smaller. The footprint of a radiator

7 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 7 Integrus Tech SD 03.Mar.06 Total coverage area for 1 to 8 carriers Carriers

8 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 8 Integrus Tech SD 03.Mar.06 Radiator coverage area Polar diagram of the radiation pattern for 1, 2, 4 and 8 carriers …..Meters

9 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 9 Integrus Tech SD 03.Mar.06 The Integrus system is immune for the effect of ambient lighting. Fluorescent lamps (with or without electronic ballast or dimming facility), such as TL lamps or energy saving lamps give no problems. Ambient Lighting Sunlight and artificial lighting with incandescent or halogen lamps up to 1000 lux give no problems.

10 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 10 Integrus Tech SD 03.Mar.06 When lighting levels higher than 1000 lux of incandescent or halogen lamps, such as spotlights or stage lighting are applied, you should directly point a radiator at the receivers in order to ensure reliable transmission. For venues containing large, unscreened windows, you must plan on using additional radiators. For events taking place in the open air a site test will be required in order to determine the required amount of radiators. With sufficient radiators installed, the receivers will work without errors, even in bright sunlight. Ambient Lighting

11 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 11 Integrus Tech SD 03.Mar.06 The presence of objects in a conference venue can influence the distribution of infra-red light. The texture and colour of the objects, walls and ceilings also plays an important role. Infra-red radiation is reflected from almost all surfaces. As is the case with visible light, smooth, bright or shiny surfaces reflect well. Dark or rough surfaces absorb large proportions of the IR-signal. Objects, surfaces and reflections

12 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 12 Integrus Tech SD 03.Mar.06 Receivers pick up direct path infra-red radiation Reflections improve the signal reception and should therefore not be minimised. Positioning the radiators Combination of direct and reflected radiation Combination of several reflected radiation

13 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 13 Integrus Tech SD 03.Mar.06 Wrong positioning of the radiator

14 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 14 Integrus Tech SD 03.Mar.06 Correctly positioning of the radiator

15 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 15 Integrus Tech SD 03.Mar.06 Positioning the radiators Covering seats in a square arrangement

16 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 16 Integrus Tech SD 03.Mar.06 Positioning the radiators A conference hall with auditorium seating and podium

17 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 17 Integrus Tech SD 03.Mar.06 Positioning the radiators Under balconies, you should cover the shaded area with an additional radiator

18 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 18 Integrus Tech SD 03.Mar.06 When the footprints of two radiators partly overlap, the total coverage area can be larger than the sum of the two separate footprints. Overlapping footprints and multipath effect

19 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 19 Integrus Tech SD 03.Mar.06 However, differences in the delays of the signals picked up by the receiver from two or more radiators can result in that the signals cancel each other out (multi path effect). Overlapping footprints and multipath effect In worst-case situations this can lead to a loss of reception at such positions (black spots).

20 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 20 Integrus Tech SD 03.Mar.06 Signal delays The signals picked up by the receiver are delayed by: the transmission from transmitter to radiator through the cable (cable signal delay) the transmission from radiator to receiver through the air (radiation signal delay) When a transmitter in master-mode is used in combination with a transmitter in slave-mode, an extra signal delay is added by: Transmission from master transmitter to slave transmitter (cable signal delay) Transmission through the slave transmitter. The lower the carrier frequency, the less susceptible the receiver is for differences in signal delays. The signal delays can be compensated by using the delay compensation switches on the radiators. I&O Manual

21 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 21 Integrus Tech SD 03.Mar.06 Cable signal delay example 1 Cable lengths.Delay switch position Radiator 1 = 20m 0 Radiator 2 = 27m 0 R 2 Transmitter 27m R 1 Overlapping area with Signal delay caused Multipath (black spots) by use of different cable lengths Overlapping area with Signal delay caused Multipath (black spots) by use of different cable lengths 7m 27m20m Overlapping areas without Signal delay by use of the same cable lengths Overlapping areas without Signal delay by use of the same cable lengths Transmitter R 1 27m R 2 7m 27m Cable lengths.Delay switch position Radiator 1 = 27m 0 Radiator 2 = 27m 0

22 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 22 Integrus Tech SD 03.Mar.06 Cable lengths.Delay switch position Radiator 1&3 = 20m 0 Radiator 2&4 = 27m 0 Cable signal delay example 2 R 4R 3 R 2R 1 Transmitter 7m 27m 20m Overlapping area with Signal delay caused Multipath (black spots) by use of different cable lengths Overlapping area with Signal delay caused Multipath (black spots) by use of different cable lengths R 4R 3 R 2 27m R 1 Overlapping areas without Signal delay by use of the same cable lengths Overlapping areas without Signal delay by use of the same cable lengths Transmitter 7m 27m Cable lengths.Delay switch position Radiator 1&3 = 27m 0 Radiator 2&4 = 27m 0

23 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 23 Integrus Tech SD 03.Mar.06 Cable signal delay example 3 R 4R 3 R 2R 1 7m 20m Overlapping area with Signal delay caused Multipath (black spots) by use of different cable lengths Overlapping area with Signal delay caused Multipath (black spots) by use of different cable lengths Cable lengths.Delay switch position Radiator 1&3 = 20m 1 Radiator 2&4 = 27m 0 R 4R 3 R 2R 1 Transmitter 7m 20m Overlapping areas without Signal delay by use of the delay switches on the radiators Overlapping areas without Signal delay by use of the delay switches on the radiators Transmitter Cable lengths.Delay switch position Radiator 1&3 = 20m 0 Radiator 2&4 = 27m 0 Calculation tool

24 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 24 Integrus Tech SD 03.Mar.06 Cable signal delay differences When radiators are loop-through connected, the cabling between each radiator and the transmitter should be as symmetrical as possible The differences in cable signal delays can be compensated with the signal delay compensation switches on the radiators.

25 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 25 Integrus Tech SD 03.Mar.06 Cable signal delay example 4 R 3R 4 R 2 100m R 1 Transmitter 7m 100m Overlapping areas without Signal delay by use of the same cable lengths Overlapping areas without Signal delay by use of the same cable lengths Cable lengths.Delay switch position Radiator 1 = 100m0 Radiator 2 = 100m0 Radiator 3 = 100m0 Radiator 4 = 100m0 R 3R 4 R 2R 1 7m Cable lengths. Delay switch position Radiator 1 = 20m 0 Radiator 2 = 27m 0 Radiator 3 = 87m 0 Radiator 4 = 94m 0 Transmitter 20m60m Overlapping areas with Signal delay caused Multipath (black spots) by use of different cable lengths Overlapping areas with Signal delay caused Multipath (black spots) by use of different cable lengths

26 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 26 Integrus Tech SD 03.Mar.06 R 3R 4 R 2 20m R 1 Transmitter 7m 60m Cable lengths.Delay switch position Radiator 1 = 20m 0 Radiator 2 = 27m 0 Radiator 3 = 87m 0 Radiator 4 = 94m 0 Cable signal delay example 5 Delay switch positions Cable lengths.Delay switch position Radiator 1 = 20m 11 Radiator 2 = 27m 10 Radiator 3 = 87m 1 Radiator 4 = 94m 0 R 3R 4 R 2 20m R 1 Transmitter 7m 60m Overlapping areas without Signal delay by use of the delay switches on the radiators Overlapping areas without Signal delay by use of the delay switches on the radiators Overlapping areas with Signal delay caused Multipath (black spots) by use of different cable lengths Overlapping areas with Signal delay caused Multipath (black spots) by use of different cable lengths Calculation tool

27 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 27 Integrus Tech SD 03.Mar.06 Planning an infra-red system General guidelines Surface the area that has to be covered with infra-red signals. Use the correct footprints, therefore the following information must be known: the ambient lighting conditions the number of carriers that will be used the radiator's output power, full or half power operation the mounting place, height and angle of the radiators the receiver position in relation to the radiator Extra radiators may be needed when: participants must also be able to receive infra-red signals when 'walking around. delegates seated on a podium listeners on the Balconies

28 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 28 Integrus Tech SD 03.Mar.06 Planning an infra-red system Determining the optimal number of infra-red radiators required to give 100% coverage can normally only be done by performing a site test. However, a good estimation can be made by using guaranteed rectangular footprints. Figure 1.20 Figure 1.21 Figure 1.20 and figure 1.21 show what is meant by a rectangular footprint. As can be seen, the rectangular footprint is smaller than the total footprint. Note that in figure 1.21 the offset X is negative because the radiator is actually mounted beyond the horizontal point at which the rectangular footprint starts. FP Calculation

29 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 29 Integrus Tech SD 03.Mar.06 High power Radiator coverage area LBB4512/00 with 1 Carrier in use, Mounting height 0 m, Angle 0 o FP Calculation RFP X= 9,5 M L= 48 M W= 27 M RFP= 1296 M 2 TFP= 2026 M 2 X= 9,5 M L= 48 M W= 27 M RFP= 1296 M 2 TFP= 2026 M 2 TFP L L W W X X

30 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 30 Integrus Tech SD 03.Mar.06 High power Radiator coverage area FP Calculation RFP X= -10 M L= 20 M W= 20 M RFP= 400 M² TFP= 617 M² X= -10 M L= 20 M W= 20 M RFP= 400 M² TFP= 617 M² TFP LBB4512/00 with 1 Carrier in use, Mounting height 10 m, Angle 90 o X X L L w w

31 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 31 Integrus Tech SD 03.Mar.06 Planning an infra-red system The guaranteed rectangular footprints for various number of carriers. I&O Manual

32 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 32 Integrus Tech SD 03.Mar.06 Planning an infra-red system For systems with up to 4 carriers and overlapping areas the distance between the radiators can be increased by a factor W L W 1.4L

33 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 33 Integrus Tech SD 03.Mar.06 1.Determine the positioning of the radiators 2.Look up (in the table) or calculate (with the footprint calculation program) the applicable rectangular footprints 3.Draw the rectangular footprints in the lay-out of the room. 4.If the receiver can pick up the signal of two radiators in some areas, determine the overlap effect and draw the footprint enlargement(s) in the lay-out of the room 5.For larger systems and systems with more than 4 carriers, use the Ease- infra-red simulation program for optimising further the overlap effect and at the same time taking into account the multi path effect Planning the infra-red radiators FP Calculation

34 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 34 Integrus Tech SD 03.Mar.06 Transmitter In order to minimize the risk of black spots, use equal cable length from transmitter to radiator if possible. Planning the radiator cabling

35 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 35 Integrus Tech SD 03.Mar.06 Symmetrical arrangement of radiator cabling (recommended) Transmitter Planning the radiator cabling

36 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 36 Integrus Tech SD 03.Mar.06 Asymmetrical arrangement of radiator cabling (to be avoided) Transmitter Planning the radiator cabling

37 ST/SEU-CO | | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Security Systems 37 Integrus Tech SD 03.Mar.06 System Design End of section Integrus menu


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