truck gate

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- 11th October 2007, 18:31
Melros

truck gate

Hi i am a newbee

can someone help me :)

The problem.

I have a big gate that i want to open and close true a radio controller thats only have one button. It`s one switch at the top and one at the bottom of the gate to tell when the gate is open or closed.. If you puch the button and the gate is down the gate must go up and, and down when the gate is at the topp.
But when the port is going down and you puch the button the port stops, and if you puch it again it`s going up and reverse.

if someone can make a simple program to me i wil be so happy.
- 11th October 2007, 20:14
Ioannis

If I get it right, you have two non-compatible systems to interface through a PIC based circuit without any experience and without any feedback from the gate door...

I think you have to start with the classic LED flasher example and then write something more complicated and IF is not working then come here to show what you have done. Then we can offer all the help to you.

But the case here is not so easy as you think. You can't be sure when the door is open or close. So you can not give the appropriate command. There are solutions ready made for this kind of gates with the security it needs. I do this for living and for sure is not for novice!

Ioannis
- 11th October 2007, 20:29
chuck

The cheek of some people :-)

First post and bang straight in

How much do you want to pay for code ? :-))
- 11th October 2007, 20:50
Melros

The program i made is like this, but now it goes down when the gate have stoped.

trisb = %00001111
portb = 0

main:
pause 500
if portb.0 = 1 and portb.7 = 1 then 'portb.7 switch top'
goto down 'portb.0 is the sender-
endif
if portb.0 = 1 and portb.6 = 1 then 'portb.6 switch buttom'
goto up
endif
if portb.0 = 1 and portb.7 = 0 and portb.6 = 0 then
goto down
endif
goto main

down:
pause 500
portc.0 = 1 'c0 sends the port down,
if portb.0 = 1 then
goto stopp
if portb.6 = 1 then
portc.0 = 0
goto main
endif

up:
pause 500
portc.1 = 1 'c1 sends the port up'
if portb.0 = 1 then
goto stopp
endif
if portb.7 = 1 then
portc.1 = 0
goto main
endif

stopp:
portc.0 = 0
portc.1 = 0
if portb.0 = 1 then
goto main
endif
end
- 11th October 2007, 21:36
Ioannis

Yes it will go down or up instead of where you want to. I explained why. You can't expect synchonization that way. You will never know where the gate is every time.

Ioannis
- 11th October 2007, 22:26
mackrackit

I can think of three options.

This is all happening between the top and bottom switch.

1 - Remember direction of travel:
If the gate is going down, write a value to a variable or EEPROM so the after you stop the gate , the next time the button is pushed, read the stored value and have that value equal down. Use the same method but a different value for up.

2 - Toggle reverse/start/stop:
If the gate is in motion - push button to stop - remember the direction of travel. Push button again and the gate reverses.. If not going the way you want it to push the button two more times.

3 - GET ANOTHER BUTTON! :D
- 12th October 2007, 10:45
Ioannis

What about power failure?

Ioannis
- 12th October 2007, 11:30
Melanie

Geeze... a problem summarised in one short paragraph. The last one that landed on my desk was 27 pages deep...

So, you have a 1 Button Remote, to control a 2 Button application.

Press the Button momentarilly and the Gate goes UP. This means that for safety in an emergency it goes UP if you hit it.

If the Gate is already in motion (in any direction) when it receives a Button press, it STOPS.

Press the Button and HOLD it for at least 3 Seconds before releasing and the Gate goes DOWN.

If it's a Prison Gate, just reverse the priority...

30 seconds, done and dusted... and the next problem...
- 12th October 2007, 12:19
mackrackit

Quote:

Originally Posted by Ioannis

What about power failure?

Ioannis

Thats easy...The gate don't work!
- 12th October 2007, 14:31
Ioannis

Quote:

Originally Posted by mackrackit

Thats easy...The gate don't work!

:-) Good one! But I meant that the phase sequence will be lost on power failure.

Anyway Melanie gave the absolute solution. So, as she stated, next problem?

Ioannis
- 12th October 2007, 15:51
Steve_88

I have a question/problem.

Is there an effective way to deal with a person who doesn't know what they don't know?

Been driving me crazy for years.

-Steve
- 12th October 2007, 19:01
mackrackit

Quote:

Originally Posted by Steve_88

I have a question/problem.

Is there an effective way to deal with a person who doesn't know what they don't know?

Been driving me crazy for years.

-Steve

Make them a VP of something. :D
- 13th October 2007, 13:23
grounded

Melrso here is a program I did for a door controller sometime back
I spent about 15 mins. modifing *** it to do what I think you asking
(I left all the extras that I needed)
I have not tested the mod. only compiled. it's a lot of code to do so little
but you get what you pay for and this is free. after 3 years I'm still a newbie
as we say down south maybe this will prime your pump
chow
grounded

'************************************************* ***************
'* Name : GATE.BAS *
'* Author : GROUNDED *
'* Notice : Copyright (c) 2007 HAVING FUN PROGRAMMING *
'* : All Rights Reserved *
'* Date : 1/11/2006 /10-12-07 *
'* Version : 1.0 ***MOD. FOR GATE CLOSER *
'* Notes : DRIVE THOUGH DOOR WITH PHOTO EYE, REVERSING EDGE *
'* & AJAR SAFETY SWITCHS . ONE PUSH BUTTON FOR OPEN/CLOSE *
'WITH FAULT CODE (FLASHING LED) *
'PHOTO EYE FAULT CODE LED 4 SEC. ON 4 SEC. OFF *
'REVERSING EDGE FAULT CODE LED ON 1 SEC OFF 1 SEC ON 1 SEC. OFF 4 SE
'AJAR FAULT CODE LED ON 1/4 SEC. OFF 1/4 SEC. ON 1/4 SEC. OFF 4 SEC.
'FAULT DOES NOT RESET WITH POWER RECYCLE MUST PUSH RESET BUTTON
'COMPILED @ 389 WORDS
'** ADDED FOR GATE CONTROLLER REVERSE OPERATION ON PB PUSH *
'************************************************* ***************
pic16f630
'FUSES SET IN INC. FILE
'INTRC_OSC_NOCLKOUT, WDT_ON, MCLR_OFF,
'CPD_OFF, BOD_OFF, PWRT_ON,PROTECT_OFF

DEFINE OSC 4
Pause 7000 'DELAY TO LET STABILIZE AFTER POWER UP
CMCON = 7 'COMPARATOR OFF
VRCON = 0 'VOLTAGE REF. DISABLE
TRISA = %00011111 'MAKE ALL BUT A.5 INPUTS
TRISC = %00110000 'MAKE PORTC .4,.5 INPUT REST OUTPUTS

OPTION_REG=%01000000 'ENABLE WEEK PULLUPS (CLEAR RAPU)& RISIING EDGE
WPUA = %00010011 'WEAK PULLUPS ON PORTA..0,.1,.4,

SYMBOL OL = PORTA.0 'OPEN LIMIT SW.IN 3
SYMBOL CL = PORTA.1 'CLOSED LIMIT SW.IN 4
SYMBOL PB = PORTA.2 'OPEN/CLOSE PB IN 1
SYMBOL RS = PORTA.3 'FAULT RESET IN 2 RESET
SYMBOL PE = PORTA.4 'PHOTO EYE IN 5
SYMBOL LED = PORTA.5 'POWER UP & FAULT LED OUT 3
SYMBOL CDC = PORTC.0 'CLOSE DOOR CONTACTOR OUT 1
SYMBOL ODC = PORTC.1 'OPEN DOOR CONTACTOR OUT 2
SYMBOL NA = PORTC.2 'N/A
SYMBOL NAA = PORTC.3 'N/A
SYMBOL RE = PORTC.4 'REVERSING EDGE IN 6
SYMBOL AJ = PORTC.5 'AJAR SWITCH IN 7

FR VAR BYTE 'FAULT VAR
PEC VAR BYTE 'PHOTO EYE FAULT CODE
REC VAR BYTE 'REVERSING EDGE FAULT CODE
AJC VAR BYTE 'AJAR FAULT CODE
OL=0:CL=0:PB=0:RS=0:PE=0:LED=0:CDC=0:ODC=0:NA=0:NA A=0:RE=0:AJ=0

LED=1 :PAUSE 2000 :LED=0 'POWER UP LED

MAIN:
IF fr=1 then goto fault 'CHECK FOR FAULT AFTER POWER UP
'LOOP UNTIL OPEN /CLOSED PUSH BUTTON IS PUSHED
IF PB=1 THEN PAUSE 10000 : GOTO CHECKIT'***10 SEC. TO RELEASE PB
PAUSE 250
GOTO MAIN

CHECKIT:
IF (OL=0) AND (CL=0) THEN GOTO OPENUP 'IF NO LIMIT SW. MADE THEN OPEN (COULD USE CLOSE)
IF (OL=0) AND (CL=1) THEN GOTO OPENUP 'IF CLOSE LIMIT SW. MADE THEN OPEN
IF (OL=1) AND (CL=0) THEN GOTO CLOSE 'IF OPEN LIMIT SW. MADE THEN CLOSE

RELO: '*******
PAUSE 100
IF PB=0 THEN GOTO EOPEN '** PB MUST BE RELEASED BEFORE DOOR WILL START OPENING
GOTO RELO

EOPEN:
IF PB=1 THEN GOTO OPENUP'***LOOP UNTIL PB IS PUSHED THEN OPEN
GOTO EOPEN

OPENUP:

IF (FR=0) AND (OL=0) THEN ODC=1 'IF NO FAULT & OPEN LIMIT NOT MADE OPEN
IF PB =1 THEN ODC=0:PAUSE 3000: GOTO RELC '***IF PB PUSHED STOP AND THEN CLOSE
IF OL=1 THEN ODC=0 : GOTO MAIN 'WHEN DOOR FULLY OPENS GOTO MAIN
GOTO OPENUP 'LOOP UNTIL OPEN LIMIT IS MADE

RELC:
PAUSE 100
IF PB=0 THEN GOTO ECLOSE '***PB MUST BE RELEASED BEFORE START CLOSING
GOTO RELC

ECLOSE:
IF PB=1 THEN GOTO CLOSE '**** LOOP UNTIL PB IS PUSHED THEN START CLOSING
GOTO ECLOSE

CLOSE:
CDC=1 'CLOSE DOOR CONTACT
'IF PHOTO EYE OR REVERSING EDGE IS TRIPP WHEN DOOR IS CLOSING STOP AND THEN OPEN

IF PB=1 THEN CDC=0 :PAUSE 3000 :GOTO RELO '**IF PB PUSHED STOP AND THEN OPEN
IF CL=1 THEN CDC=0 :GOTO MAIN 'LOOP UNTIL CLOSE LIMIT IS MADE
IF PE=1 THEN PEC=2: CDC=0 :PAUSE 4000 :GOTO FO 'PHOTO EYE FAULT
IF RE=1 THEN REC=2: CDC=0 :PAUSE 4000 :GOTO FO 'REVERSING EDGE FAULT
IF AJ=1 THEN AJC=2: CDC=0 :PAUSE 1000 :GOTO FAULT 'AJAR FAULT

GOTO CLOSE 'LOOP AND CHECK FOR FAULT

FO: 'IF YOU HAVE A PE OR RE FAULT OPEN DOOR AND
'THEN SHOW FAULT
IF OL =0 THEN ODC=1
IF OL=1 THEN GOTO FAULT
GOTO FO
FAULT:
FR=1
IF PEC=>2 THEN LED=1:PAUSE 4000 :LED=0 :PAUSE 4000
IF REC=>2 THEN LED=1:PAUSE 1000:LED=0:PAUSE 1000:LED=1:PAUSE 1000:LED=0:PAUSE 4000
IF AJC=>2 THEN LED=1:PAUSE 250:LED=0:PAUSE 250:LED=1:PAUSE 250:LED=0:PAUSE 4000

IF RS=1 THEN PEC=0: REC=0 :AJC=0 : FR=0 :GOTO MAIN
GOTO FAULT