Manitowoc J450 Manual de usuario descargar pdf (Pagina 20)

US

2014/0097759

A1

should

be

noted

that

many

different

timings,

checks,

step

orders,

or

other

variations

are

contemplated

and

may

fall

within

the

scope

of

one

or

more

appended

claims.

Process

800

can

be

executed

by

processing

electronics

300

of

controller

204

shown

in

FIG.

3

or

by

other

processing

electronics

coupled

to

a

lighting

?xture.

In

an

alternative

embodiment,

process

800

can be

partially

or

entirely

executed

by

process

ing

electronics

remote

from

the

lighting

?xture

(e.g.,

a

control

computer

252).

For

example,

in

an

alternative

embodiment,

some

of

the

steps

of

process

800

may

be

executed

by

a

lighting

?xture’s

local

controller

and

other

of

the

steps

of

process

800

may

be

executed

by

control

computer

252.

[0059]

Process

800

is

shown

to

begin

at

step

802

where

timers

or

counters

Tl

through

T5

are

initially

set

to

zero

(step

802).

Timers

or

counters

Tl

through

T5

are

variously

used

to

control

the

timing

of

transitions

into

and

out

of

varying

light

ing

states.

Tl

represents a

time

period

for

which

dim

illumi

nation

should

be

provided

by

the

lighting

?xture.

T2

repre

sents

a

time

period

for

which

high

illumination

should

be

provided

by

the

lighting

?xture.

T3

and

T4

represent

time

periods

which

are

used

to

represent

periods

of

time

where

sustained

local

motion

is

detected.

T5

represents a

time

period

for

which

local

motion

has

occurred.

While

particular

timings

are

described

with

reference

to

process

800 and

the

other

processes

described

herein,

different

state

timings

may

be

associated

with

varying

exemplary

embodiments.

[0060]

At

step

804,

the

primary

aisle

mode

loop

begins.

It

should

be

noted

that,

prior

to

starting

the

primary

aisle

mode

loop

at

step

804,

any

number

of

additional

steps

may

be

conducted

to

warm

up

the

lamp,

conduct

daily

lamp

“season

ing”,

or

to

conduct

another

start-up

task.

For

example,

the

initial

motion

detected

in

a

zone

during

a

day

may

result

in

all

lamps

within

the

zone

being

turned

high

for

one

minute

to

ensure

the

daily

lamp

seasoning.

[0061]

Once

the

loop

is

begun,

process

800

can

begin

con

tinually

checking

for

whether

local

motion

is

detected

(step

806).

As

described

above

with

reference

to

FIG.

3,

and

according

to

an

exemplary

embodiment,

sensor

circuit

310

and

sensor

210

can

process

infrared

video

signals

to

estimate

whether

signi?cant

movement

(e.g.,

enough

to

be

a

human

rather

than

a

small

animal)

is

occurring

in

the

space

covered

by

the

sensor

210’s

sensor

detection

signal.

In

response

to

local

motion

being

detected,

activities

including

switching

relay

Rl

(e.g.,

shown

in

FIG.

3)

to

be

“on”

to

provide

rela

tively

‘dim’

illumination

from

the

lighting

?xture

are

com

pleted

(step

808).

In

step

808,

timer

T1

is

set/reset

to

equal

90

seconds.

In

step

808,

also

in

response

to

the

detection

of

local

motion,

the

processing

electronics

of

the

lighting

?xture

(e.g.,

processing

electronics

304

shown

in

FIG.

3)

causes

a

com

munications

interface

(e.g.,

transceiver

306

of

FIG.

3,

a

wired

communications

interface)

to

transmit

a

zone

motion

mes

sage

to

other

lighting

?xture

controllers

in

the

zone.

Each

time

local

motion

is

detected,

T5

is

reset

to

equal

3

seconds.

It

should

be

noted

that

relay

Rl

will

stay

‘on’

while

local

motion

is

being

detected.

As

will

be

noted

below,

because

timer

T1

is

reset

to

90

seconds

each

time

local

motion

is

detected,

the

lighting

?xture

will

provide

dim

illumination

for

at

least

ninety

seconds

after

local

motion

is

detected.

[0062]

At

step

810,

a

check

is

conducted

for

whether

T4

is

greater

than

0

seconds.

T4

is

used

as

a

dwell timer

such

that

a

number

of

seconds

(e.g.,

2)

can

pass

before

the

process

800

resets

timer

T3

that

is

used

for

checking

whether

the

local

motion

is

sustained

in

step

812.

If

T4

is

not

greater

than

zero

seconds

according

to

the

check

at

step

810,

T3

is

reset to

equal

Apr.

10,

2014

6

seconds

and

T4

is

reset

to

equal

2

seconds

(step

814).

If

T4

is

greater

than

zero

seconds

(meaning

that

motion

has

been

detected

within

the

T4

dwell

time),

then

step

812

checks

for

whether

the

local

motion

has

been

sustained

for

a

predeter

mined

period

of

time

(e.g.,

6

seconds).

In

other

words,

step

812

checks

for

whether

T3

has

been

counted

down

from

6

to

zero.

[0063]

If

step

812

results

in

a

determination

that

local

motion

has

been

sustained,

then

T4

is

reset

to

2

seconds

at

step

816.

Further,

in

response

to

sustained

local

motion,

relay

R2

is

caused

to

be

‘on’

providing

a

‘high’

illumination

level.

T2

is

reset

to

thirty

seconds

and

a

sustained

motion

message

is

transmitted

from

transceiver

3

06.

As

will

be

explained

below,

when

T2

counts

down

to

zero,

relay

R2

is

deactivated.

There

fore,

in

response

to

detected

sustained

local

motion

(e. g.,

detecting

movement

associated

with

a

worker

concentrating

on making

a

product

pull

in

an

aisle

location

for

longer

than

6

seconds),

the

lighting

?xture

is

caused

to

switch

from

a

dim

illumination

state

to

a

high

or

bright

illumination

statei

providing

the

highest

possible

light

level

for

the

worker

in

the

aisle.

If

local

motion

does

not

continue, the

lighting

?xture

returns

to

a

dim

state

after

time

T2

expires,

saving

energy

when

high

illumination

is

no

longer

required

due

to

worker

activity.

[0064]

At

step

820,

process

800

decrements

all

non-zero

timers

other

than

T4

by

one.

Steps

822 and 824

check

for

the

expiration

of

timer

T1

and

T2,

respectively.

As

described

above,

if

T2

has

expired,

then

(at

step

828)

relay

R2

is

deac

tivated

to

reduce

the

illumination

level

from

high

to

dim

(e. g.,

where

Tl

only

is

activated).

If

Tl

has

expired,

then

(at

step

826)

relay

R1

is

deactivated

to

reduce

the

illumination

level

from

dim

to

off

(or

lower).

After

state

changes

at

steps

826,

828, or

after

consecutive

‘no’

decisions

at

step

822, 824,

the

loop

repeats

at

step

804.

[0065]

As

shown

in

FIG.

8,

if

local

motion

is

not

detected

at

step

806,

then

T4

is

decremented

by

one

(if

T4

is

not

already

zero)

at

step

830.

At

step

832,

process

800

includes

checking

for

whether

a

sustained

motion

received

message

has

been

received

from

a

linked

or

nearby

lighting

?xture

(e.g.,

a

lighting

?xture within

the

same

zone).

Step

832

also

checks

for

whether

T5

is

greater

than

0.

If

T5

is

greater

than

zero,

local

motion

has

recently

been

detected

by

the

lighting

?xture

at

step

806.

Accordingly,

step

832

essentially

checks

for

whether

sustained

motion

is

happening

nearby

and

whether

local

motion

has

recently

occurred

(e.g.,

with

in

the

last

5

seconds).

If

so,

then

relay

R2

is

switched

on

to

provide

a

high

illumination

level

at

step

818.

T2

is

reset

to

30

seconds

such

that

the

high

level

of

illumination

will

be

provided

for

at

least

30

seconds.

Further,

transceiver

306

is

caused

to

rebroadcast

a

sustained

motion

message

to

the

zone.

[0066]

If

a

sustained

motion

message

is

not

received

at

step

832

(or

T5

is

zero

when

the

sustained

motion

message

is

received),

then

a

check

is

conducted

for

whether

zone

motion

has

been

received

(step

834).

A

zone

motion

message

is

a

message from

another

lighting

?xture’s

transceiver

in

the

zone

indicating

that

motion

(but

not

sustained

motion)

was

detected

by

the transmitting

?xture’s

motion

sensor.

If

the

loop

has

progressed

to

step

834 and

no

zone

motion

has

been

received,

then

step

820

is

reached

without

further

state

changes

and

the

loop

continues

as

described

above.

If

a

zone

motion

message

has

been

received

during

a

cycle

of

the

loop

at

step

834,

then

relay

R1

is

switched

on

to

provide

a

dim

illumination

level

(step

836).

At

step

836,

T1

is

also

reset

to

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