Transcript
Water level indicator cum controller Wednesday, November 19th, 2008 The present concept implements controlling of pump which pumps water from the sump(underground tank) to the overhead tank, using 8951 microcontroller.The control panel, i.e. the main control unit of the system which consists of the primary controlswitches, pump indicator, siren and level indicators. The visual example of how switches Andthe indicators can be placed as shown the figure below.Front view of the modelIn the figure shown above there are total of nine LEDs, four of which indicates the water level inthe tank, another four indicates the water level in the sump and one LED indicates whether thepump is ON/OFF. It also consists of three switches.1. Switch 1 is the main power switch which is used to activate the system.2. Switch 2 is used to select whether to operate the pump in AUTO or MANUAL mode.3. Switch 3 comes to picture only when the system is operated in MANUAL mode. Itcontrols the direct activation of the pump. Description : This system is built around an 8951 microcontroller and the circuit diagram is as given below. Circuit diagram of Water level indicator cum controllerAs you can see in the above diagram, port 0 is exclusively used as an input port which takes theinformation regarding the water level in the sump as well as in the overhead tank.Port 1 is used as output port which is connected to the indicator that indicates the water level inboth the tanks.Port 2 is used as in/out port, it takes the input from switch 2 and switch 3 and gives the outputwhich is connected to pump indicator, siren and the relay which controls the switching of thepump. Working of the system: There are two modes of working for the system1. Manual mode2. Auto modeWhich is controlled by switch 2 (refer control panel diagram) Manual mode: When the system is active and in manual mode, it only indicates the water levels in the tanks and it doesn‟t control any working of the pump. To activate the pump in manual mode switch 3 is used.In this mode the operator should manually control the working of the pump. As in case if thetank is full, operator should switch of the pump which is not the case when compared to automode. Auto mode: When the system is active and in auto mode, it only indicates the water levels in the tanks and itcontrols the working of the pump.Author Name : Ranjith Total : 178 CommentsDescription : Browse other articles of this author Simillar Posts Electronic house Robotic car using 8951 Microcontroller Automatic Railway Gate Control & Track Switching Induction furnace control system Programmable number lock system 178 Responses to Water level indicator cum controller 1. Arindam December 18th, 2008 at 7:19 pm Hi, I am Arindam .I have some question about this water level controller.1. I cant find any firmware for 8951 chip.2. can you add a LCD Or Seven segment display for status(HALF, FULL, EMPTY).3. can you add motor dry run protector means when water not flow to overhead tank,motor must turned off.4. amps rating of relay for 1 hp jet pump.I have only overhead tank and 1 HP motor , so can you help me to implement this projectfor my case with above mentioned features.I will be highly obliged if you spread your helping hand in this regard.2. jyoti January 1st, 2009 at 11:17 pm 1. I cant find any firmware for 8951 chip.2. can you add a LCD Or Seven segment display for status(HALF, FULL, EMPTY).3. can you add motor dry run protector means when water not flow to overhead tank,motor must turned off.4. amps rating of relay for 1 hp jet pump.I have only overhead tank and 1 HP motor , so can you help me to implement this projectfor my case with above mentioned features.I will be highly obliged if you spread your helping hand in this regard.3. sanjay bansal January 5th, 2009 at 9:32 am sir i require the firmware and hex code for the water level controller projectplease help me in this matter4. oduma jebs January 11th, 2009 at 6:06 am 1.can you add a LCD Or Seven segment display for status(HALF, FULL, EMPTY).2 please can i have an analysis of special function registers in 8951 microcontroller5. bikash January 14th, 2009 at 11:37 am sir,i am b.tech student and iam doing water level project so i need program of this project.
