Next: Problem Description Up: No Title Previous: Contents

Application Knowledge

Part 2: Building Architecture

Fact BD_17

Information : In this part, the architecture and the installation of the given sensors and actuators of Building 32, 4th floor is described

Fact	BD_17

Fact BD_18

Information : In the following document, keywords are marked at their first occurrence and listed in the additional dictionary (Part 3).

Fact	BD_18

Fact BD_19

Information : Words written in emphasis are names of physical sensors/actuators.

Fact	BD_19

2.1 Building Structure

Fact Floorplan

Information : $\epsfig{file=/home/forest/EXAMPLES/DAGSTUHL/PROBLEM_SPECIFICATION/graphs/floorplan.epsi}$

Fact	Floorplan

Fact BD_20

Information : The fourth floor of building 32 consists of three sections and shares two staircases SCE and SCW with other floors of the building, as shown in figure 1. Sections are divided into offices(O), computer labs(CL), hardware labs(HL), peripheral rooms(P), meeting rooms(M), and hallways(H). All rooms in a section are accessible via connected hallways. There are three hallways and 22 rooms to control. Figure 1 also shows the six outdoor light sensors (ols1 - ols6) and the major compass directions. The sensors cover the six directions of the different walls. The number in the rooms indicate the type of room plus a unique number.

Fact	BD_20

2.2 Current Installation

Fact BD_21

Information : Currently, ceiling light groups in all rooms can only be turned on or off in groups.

Fact	BD_21

Fact BD_22

Information : In all rooms each ceiling light group is controlled by one or more push-buttons, that toggle the light if switched to the other position.

Fact	BD_22

Fact BD_23

Information : Task lights are controlled manually by one push-button.

Fact	BD_23

Fact BD_24

Information : In the hallways, several push-buttons can toggle the ceiling light group on and off. All push-buttons are connected in parallel.

Fact	BD_24

2.3 Planned Installation

2.3.1 Offices

Fact BD_25

Information : An office (shown in Figure 2) has one door (d1) to the hallway and can have doors to the adjacent rooms (d2, d3). Only those doors are part of a room that open into the room. There fore, d3 is not an object of the shown room, but the name can be used as a reference. Each door is equipped with a door closed contact, named dcc<n>, where n is the number of the door in the room.

Fact	BD_25

Fact BD_26

Information : Each office is equipped with

1.
one motion detector, so that the room is fully covered (imd1). Actually several motion detectors can be connected in parallel to achieve the coverage.
2.
two ceiling light groups (window and wall), that can be dimmed individually with dimmer-actuators lle1 (window) and lle2 (wall)
3.
a panel to control the light groups directly or select light scenes,
4.
a desk with a movable task light on it.The task light can be manually turned on and off (pb3).
5.
two push-buttons (pb1 (window) and pb2 (wall)) for the control of the ceiling lights.
6.
three status lines (sll1..3) that show the status of the three light sources.

Fact	BD_26

Fact Office

Information : $\epsfig{file=/home/forest/EXAMPLES/DAGSTUHL/PROBLEM_SPECIFICATION/graphs/office.epsi}$

Fact	Office

2.4 Hallway

Fact BD_27

Information : Each hallway is limited by two doors, leading to the adjacent hallways. Each door is assigned to only one hallway. Therefore, in the given floor with 3 hallways and 4 doors, there exists one hallway with two doors and two hallways with only one door. The assignment of the doors and their associated names are shown in Figure 3. Each door is equipped with a door closed contact, named dcc<n>, where n is derived from the name of the door.

Fact	BD_27

Fact BD_28

Information : Each hallway is equipped with

1.
two motion detectors (imd1 and imd2), placed above the doors at each end of the hallway to determine the presence of a person near a door,
2.
one motion detector to cover the whole section (imd3), can be several connected in parallel for coverage.
3.
one ceiling light group that can be turned on and off,
4.
several wall push-buttons (pb) to toggle the light, an impulse relay, which controls the ceiling light group, and normal relays in parallel to push-buttons.
5.
one status line (sll1) that determines if the light is on or off (sl1)

Fact	BD_28

2.4.1 Staircase

Fact Hallways

Information : $\epsfig{file=/home/forest/EXAMPLES/DAGSTUHL/PROBLEM_SPECIFICATION/graphs/hallways.epsi}$

Fact	Hallways

Fact BD_29

Information : Staircases connect several floors.

Fact	BD_29

Fact BD_30

Information : At the floor level, a staircase is equipped with

1.
one motion detector imd1 above the door to the adjacent hallway to detect motion near the door.

Fact	BD_30

2.4.2 Computer Labs

Fact BD_31

Information : A computer lab has one door (d1) to the hallway and can have doors to the adjacent rooms (d2, d3). The light installation is the same as in the offices. The sensors at the doors are named like the ones at the offices.

Fact	BD_31

Fact BD_32

Information : Each computer lab is equipped with

1.
one motion detector, so that the room is fully covered (imd1). Actually, several motion detectors can be connected in parallel to achieve the coverage.
2.
two ceiling light groups (window and wall) that can be dimmed individually with dimmer-actuators lle1 (window) and lle2 (wall)
3.
a panel to control the light groups directly or select light scenes,
4.
two push-buttons (pb1 (window) and pb2 (wall)) for the control of the ceiling lights.
5.
two status lines (sll1, sll2) that show the status of the light sources.

Fact	BD_32

2.4.3 Hardware Labs

Fact BD_33

Information : Same as computer labs, but with more than one door to the hallway.

Fact	BD_33

2.4.4 Meeting Room

Fact BD_34

Information : Same as computer lab.

Fact	BD_34

2.4.5 Peripheral Rooms

Fact BD_35

Information : The peripheral rooms will not be controlled by a computer system, and thus they will not be presented furthermore!

Fact	BD_35

2.5 Sensors

Fact BD_36

Information : This section describes the real physical sensors including converters if necessary.

Fact	BD_36

Fact BD_37

Information : Analog sensors typically have an exponential time response. Reaction time is the time from a change of the sensed property to the time when the sensor has reached 90% of the change, excluding conversion time. Conversion time is the time to convert the analog value to a digital one that can be accessed by the control system.

Fact	BD_37

Fact BD_38

Information : NC means "normally closed". Closed is coded as 1, open as 0.

Fact	BD_38

Fact Table_1

Information : $\epsfig{file=/home/forest/EXAMPLES/DAGSTUHL/PROBLEM_SPECIFICATION/graphs/table1.epsi}$

2.6 Actuators

Fact BD_39

Information : Actuators have a linear time response. Reaction time is therefore defined as the time to change from 0 to 100% / 100 to 0%, if different.

Fact Table_2

Information : $\epsfig{file=/home/forest/EXAMPLES/DAGSTUHL/PROBLEM_SPECIFICATION/graphs/table2.epsi}$

Fact BD_40

Information : The structure of the dimmable lights is shown in the next picture. Inputs to the dimmable light are the pulse line to toggle the light, a dim value to set the current dim value and the signal control system is active to show the status of the control system. If this signal is not sent every 60 s, the light switches to fail safe mode and dim value changes to 100%. The output is a status line to show the current state (on or off) of the light.

Fact LightInstallation

Information : $\epsfig{file=/home/forest/EXAMPLES/DAGSTUHL/PROBLEM_SPECIFICATION/graphs/light.epsi}$

Next: Problem Description Up: No Title Previous: Contents

Forest-System
1999-06-04