prepaid energy meter circuit diagramquality sterling silver necklaces

Text: Evaluation Board Documentation TRF7003 RF Power Amplifier 4.8 Volt GSM Application APPLICATION , those mandated by government requirements. The cause of getting high bills is usually not the high electricity rates but is the unconscious overuse of electricity. A printDigits2() functionn is used in the loop() function to format the strings carrying numbers to a zero padded format. stream Power Supply A step down transformer is used to convert 230v AC to 18v AC and by using a full bridge rectifier and capacitor it is converted to 18V DC. If user presses button connected to A0 pin, the recharge balance in rupees and pulses is read from the EEPROM and saved to r and s variables respectively. The pins 5 and 6 of the EEPROM IC connect to the A4 and A5 pins of the Arduino where A4 is configured to SDA and A5 is configured to SCL. sensorValue =analogRead(A0)*(5.0/1023.0)*100; This ends the Arduino sketch for Prepaid Energy Meter. 3) Prepaid Energy Meter An embedded device that could integrate with regular household meters for reading recharge amount and tracing energy consumption in a descending order until it reaches zero. It also supports In GSM networks, non-voice services are steadily, Abstract: sim gsm modem circuit diagram circuit diagram of moving LED message display Siemens MC75 gsm modem block diagram gsm modem sim 900 gsm modem circuit sim 300 modem datasheet at commands sim 300 gsm modem datasheet GSM module BLOCK diagram In such a system, the household electricity meters need to be equipped with a system that could be acknowledged of the amount recharged by the consumer and could count down the electricity consumption from the recharged amount to zero. The pins are used for addressing individual EEPROMs when multiple EEPROMs connect to a single microcontroller at the same time. The RW pin of the LCD is grounded. The consumer can navigate to ascending order of recharge packages by pressing button connected to A1 pin of Arduino UNO while can navigate to descending order of recharge packages by pressing button connected to A0 pin of Arduino UNO. A loop() function is called in which the digital input from the tactile switches and D0 bit of decoder IC are read using digitalRead() function. Integration period Energy type 5 min. The pins 5 and 6 of the EEPROM IC connect to the pin 20 and 21 of the Arduino Mega respectively where pin 20 of the board is configured to SDA and pin 21 is configured to SCL. The recharge station will also send a confirmation message to the registered mobile number of the consumer on every recharge. Text: 14.4K GSM circuit switched data SMA antenna connector and SIM socket Serial interface supports DTE , accordance with GSM 07.05. In the program code, first the standard open-source libraries of Arduino for interfacing LCD, Virtual Serial port and serial communication are imported. Already using smart card technology , digital technology GSM networks, the SIM card carries the for mobile phones. All the other ICs and modules are powered by 5V DC from the Arduino board. The device has an RF transmitter circuit to connect with the recharge station for sending the alert of low usage balance remaining. |U|]|9YwB+lcG/0fL'.TS3>+l'}]r4] M~}CMM The rechargeAlertSMS() function is same as the lowAlertSMS() function except that the message text is different. %PDF-1.5 In the program code, first the standard open-source libraries of Arduino for interfacing LCD, Virtual Serial port and serial communication are imported. The Arduino sketch of the prepaid energy meter detects the blinks and runs a counter in descending order measuring consumption of each 1 KWH or unit electricity by 3200 blinks or pulses. The 18V DC is provided to the GSM module. Text: Summary Platform Enhanced Control Server Protocols ANSI-41, GSM CAMEL, ETSI INAP CS 1 GeoCore Solution TM Add Location Functionality to Traditional Applications I f you provide , billing for the call is based on that rate zone. A commercial version of the system realized here can have smart cards for facilitating electricity recharges. A function eeprom_i2c_write() is defined which writes data to a specific address of the EEPROM. Revised package contents. By using Infineon Technologies' s , involved, security is of the highest concern. Supporting data-only, these SIM cards provide a simple , pre-paid options allow you the freedom to monitor data usage without a contract and give the flexibility , Ability to change to a post paid plan Digi-Key Corporation | Pre-Paid SIM Overview 1 100's of , Corporation | Pre-Paid SIM Overview 2 Product Index Pre-paid SIM Selection Part Number Jazz, Abstract: mobile phone location "CAMEL" WIRELESS PREPAID SERVICE flexent US Marketing Services The regular EEM used in the project testing had a rating of 3200 impulse/KWH. The device is made capable to cut off the main supplies by regulating the main supplies through a relay circuit. The standard open-source library for interfacing LCD with Arduino UNO is used in the project. The memory stick used as alternative to the smart recharge card is AT2402. The write() method is used to write address location and endTransmission() method is used to close the transmission. There are actually two types of IC cards: memory , memory type cards is a prepaid telephone card. This rating can vary from 800 impulse/KWH to 3600 impulse/KWH. By using our the GSM /GPRS/GPS-Shield, it is possible to use GSM (mobile phone) and GPS (navigation). SUPERHOMODYNETM DIRECT-CONVERSION RECEIVER A functional block diagram o f the Othello dual band GSM radio , services could, in concept, occur over the GSM network using the same radio in the handset. HT12D is capable of decoding 12 bits, out of them 8 are address bits and 4 are data bits. Added RS232 Connector pinout diagram . <> If the pulse variable is left 30 percent that is 70 percent of energy balance is consumed the D0 bit of RF encoder is set to HIGH. HT12D belongs to the 212 series of decoders and can be paired with 212 series of encoders having the same number of addresses and data format. This 18V DC is converted to 12v DC using a 7812 voltage regulator and is supplied to the Vin pin of Arduino UNO board. 2 0 obj The pins 9 and 10 are declared as the virtual serial port in Arduino sketch to communicate data with the module. When a load will be switched ON and start consuming electricity, current will also pass through the prepaid energy meter device. 4 0 obj When the available electricity consumption is left 30 percent, the Arduino Mega raises the D0 bit of the RF decoder high sending an acknowledgement of low energy balance to the recharge station. The available electricity consumption is calculated by the number of blinks by the Imp/KWH LED of the EEM. With this , can be sent and travelling routes can be tracked. Data circuit asynchronous, transparent, non-transparent up to 14,400 bits Mode , drawing. This 18V DC is converted to 12V DC using a 7812 voltage regulator and is supplied to the Vin pin of Arduino UNO board and the relay. Text: Personalization Systems Eurochip 2 Cards (SLE 5536) In applications using a prepaid card which decreases in , to overcome the use of Personal Identification Numbers. The Arduino pins by default are connected to VCC and receive HIGH logic. 1) Electricity Recharge Station An embedded device that could write recharge information to a memory system. An object of LCD class is declared and mapped with the Arduino pins. On pressing the button, consumer will be prompted to select a recharge amount by flashing messages on the LCD screen. =b_imo_W`kGJN]"(^!:&0 >y?]OozELfM$WClm[.5}]]'{*IY2Y)W]; UIGf]a5g)8UrTog36GcU~\scvg9fb/ZOov'iFvk5hnaR5e~#F]GJu'#@2ZfX6zNX8[\ :8/O@C36)|X}2^|'4qD4ALw9V. The RW pin of the LCD is grounded. 9l L/2RDsw*Z[Pbgkt;Rx= A message prompting user to recharge energy balance is flashed on LCD. Copyright 2022 WTWH Media LLC. else, the data read is set to 0xFF. *^Juxa5&Mh(Z8#7R%`q@bvLJ9 i. byte eeprom_i2c_read(int address, int from_addr) {. Have a technical question about an article or other engineering questions? The virtual serial port is realized at pins 9 and 10 of the Arduino. Usually the households have post paid electricity connections. A set of counter variables is declared and an array to hold bitmap for custom rupee character is declared. Once the memory card is plugged in the prepaid energy meter, the Arduino MEGA controlling meter circuit reads the recharge amount from EEPROM and resumes the power supply by switching the relay. Text: y stem .61 Microcontroller-based energy metering using the A D 7755 , . The board is connected to a GSM module for sending confirmation SMS of successful recharges and alert messages for next recharge. This rating means that the Imp / kWh LED of the EEM will blink for the indicated number of times when 1 KWH or 1 unit of electricity will be consumed. The recharge balance is shown on the LCD panel of the prepaid energy meter. 2) Smart device to store recharge amount The project uses a memory stick to demonstrate functioning of a smart recharge device. The pin 17 is called valid transmission and has an LED connected to it through 1 K resistor to indicate if the RF transmitter on the Prepaid Energy Meter is paired with the receiver or not. eeprom_i2c_write(B01010000, 1, teriff[i]); puls=(3200*r)/6; //6 rupees per UNIT assumption. The difference between the inverting and non-inverting voltage is passed from the output pin 1 of the comparator to analog pin A0 of the Arduino. Text: Pre-paid SIM card Enabling your M2M device on a cellular network doesnt have to be complicated , 2G GSM or 3G AWS bands 1700/2100MHz. The standard commands of the GSM module are passed to it using virtual serial port. Therefore, the D0 bit of the encoder IC is connected to the pin 7 of Arduino MEGA. The mounting may be done by e.g, Abstract: No abstract text available Relay Circuit A 12V 2A relay will be used to control the main supplies. The pin configuration of transmitter module is as follows-. For making the recharge, he has to plug in the memory card to Recharge Station and press button interfaced to A2 pin of Arduino UNO. On the consumer side, post paid connections have drawback that the consumption of electricity is not tracked by the consumers and many times they are shocked, when they receive high bills. Text: customer needs to use the TP10 clamp-on thermal energy meter with GSM wireless option. Once navigating to a desired recharge package, consumer can confirm recharge by pressing button connected to A3 pin of the Arduino UNO. The program code will run on the Arduino Mega. If wattage of load in known in Watts then, Wattage of load in Watts = (60* Blinks Per Minute*1000)/Meter rating in impulse/KWH, From the above equation, the meter rating can be confirmed by the formulae , Meter rating in impulse/KWH = (60* Blinks Per Minute*1000)/ Wattage of load in Watts, The EEM used during project testing had a rating of 3200 impulses/KWH mentioned on it. RF transmitter The RF transmitter will be used to transmit alert message of low energy balance to the receiver circuit. The pin interfacing with the D0 bit of RF Decoder is assigned to variable RFin. If you are currently using MSC family, Wired /12 pin 7 segment display layout -hs-5461BS2, 2007 - prepaid energy meter with gsm modem, 2005 - trusted platform module logic circuit, 2005 - CIRCUIT DIAGRAM FOR gsm modem with sim 300, 2003 - CIRCUIT DIAGRAM FOR gsm modem with sim 300, 2006 - CIRCUIT DIAGRAM FOR gsm modem with sim 300. It is paired with 212 series of decoders having the same number of addresses and data format. 8 , control other devices, so-called Shields (extension boards) are plugged to the Arduino board. The 8-pin IC has the following pin configuration . The lowAlertSMS() function is used to send message of low energy balance to user. For simplicity, the memory system used is a memory chip. The EEMs come with an Impulse/KWH rating. The pins where tactile switch, D0 bit if Encoder IC and relay are connected are assigned to variables b1, RFin and relay. The Arduino board in combination with the GSM /GPRS , GSM /GPRS/GPS-Shield over a serial interface and SPI. For testing the real impulse/KWH rating of the meter, a load of fixed wattage should be connected with the meter and supplied power for a minute. ENSURE TOMORROW. For simplicity, it is used as an alternative to the smart cards. The RF receiver module has 8 pins and has following pin configuration . Using our , PrePaid Service into GeoCore solution, you can provide this ability to prepaid subscribers as well, Abstract: PMB 9811 GSM project circuit PMB2800 higold gsm module with microcontroller GSM project cellphone gsm gps module with microcontroller chipset gold The circuit is built on Arduino Mega and has different components and modules connected to the board in the following manner . The EEPROM IC stores the recharge information and is pluggable to the recharge station and the prepaid energy meter. 3 0 obj The RS and E pins of the LCD are connected to pins 13 and 12 of the Arduino UNO respectively. A setup() function is called in which the baud rate for virtual serial port and serial transmission of data to the LCD is set to 9600 bits per second using mySerial.begin() and Serial.begin() functions respectively and communication over TWI is initialized using Wire.Begin() method. The customer , MEASURE TODAY. A 47 K resistor is connected between the pins 14 and 15 of the decoder IC to match the RF frequency. External EEPROM AT24C02 is the external EEPROM used as the smart recharge device. mySerial.println(AT+CMGS=+91xxxxxxxxxxr); mySerial.println(LOW BALANCE PLEASE RECHANGE);// The SMS text you want to send, mySerial.println((char)26);// ASCII code of CTRL+Z. The device will have slot to plug in EEPROM to read and decrease recharge balance and have an LCD display to show current energy usage balance decreasing with the energy consumption. RF Receiver The RF receiver is used to get an alert of low energy balance from the prepaid energy meters. An external power supply of 18V is used to power the GSM module. The AT2402 is 2Kb memory stick that connects with any microcontroller on I2C interface. The push button used for, Abstract: gsm coding in c for 8051 microcontroller SLE 4404 SLE7736 SLF9000 SAMPLE CODE FOR MIFARE PLUS srf55v10 SAM module mifare SRF55V10S proximity sensors parking microcontroller 8051 However, meters with 1000 impulse/KWH rating are gaining popularity nowadays. To install the modem, do the following: 1. The LCD is initialized using LCD.begin() function and initial messages indicating name of the project are flashed on the screen. The D0 bit of the decoder IC is connected to the pin 7 of Arduino UNO. On detecting D0 bit high on RF encoder, the Arduino UNO on the recharge station frames and sends an alert message to the consumer using GSM/GPRS module. Text: White Paper: CoolRunner CPLDs R WP118 (v1.0) May 18, 2000 Using CoolRunner CPLDs in Smart , for club membership details and then the exact amount is debited from our account using the on-card , card is classed as an integrated circuit (IC) card. Text: operate on a GSM network. External EEPROM The external EEPROM will be plugged to the device and connects with the Arduino MEGA on two-wire interface. The analog voltage at A0 pin is read and converted to digital reading using analogRead() function. GeoCore solution makes it easy to enhance almost ANY application with location information. The board is interfaced to RF receiver circuit so that it could connect with the prepaid energy meter and detect low energy balance. The RS and E pins of the LCD are connected to pins 13 and 12 of the Arduino UNO respectively. An array holding the recharge amounts is declared. If user presses button connected to A2 pin, the pos variable is set to 20 and LCD screen is cleared. A commercial version of the system can have smart cards instead. For building recharge station, following components will be required , The AT2402 memory stick is used as the smart recharge device. Using your fingernail or a small , .14 Chapter 3 Using Your Wireless Modem , .16 Using Short Message Service (SMS , .25 Data Cable Diagram No Voice .25 Data Cable Diagram with Voice, Abstract: talking energy KWH meter introduction varil spll GSM based remote water pump control system circuit diagram Creative 2.1 subwoofer circuit diagram Sim 8309 data circuit diagram of energy meter using AD7751 IC gsm based energy meter billing gsm door lock circuit diagram Lem Flex current transducer Whenever Imp / kWh LED of the front panel of EEM blinks, the resistance of LDR is increased in the potential divider circuit increasing the non-inverting voltage and greater voltage is detected from pin 1 of the LM358 comparator IC. If a valid recharge is done or not is checked by if-else logic. The number of blinks in a minute during running supply to the load should be calculated. The Arduino IDE is used to write the Arduino sketches for recharge station and prepaid energy meter and AVR Dude is utilized to burnt program codes to the microcontroller boards. HT12E IC The HT12E IC converts the parallel data into serial data for passing it to the RF transmitter. 16X2 LCD display The LCD display is used to provide an interface for human interaction and it displays messages guiding the user to recharge electricity usage. All Rights Reserved. Thus, energy , meter can be configured to measure both imported and exported energy . LiquidCrystal lcd(13, 12, 6, 5, 4, 3);// Pins used for RS,E,D4,D5,D6,D7, SoftwareSerial mySerial(9, 10); // RX, TX, int b1 = A0; // Push button used as * and < at A0 pin, int b2 = A1; // Push button used as > at A1 pin, int b3 = A2; // Push button used as EXIT at A2 pin, int b4 = A3; // Push button used as # and save at A3 pin. Power Supply A step down transformer is used to convert 230v AC to 18v AC and by using a full bridge rectifier and capacitor it is converted to 18V DC. A variable to hold analog value from LDR sensor is declared. The recharged energy units are saved to a puls variable and relay is tripped to resume main supplies. This project is an attempt to realize a similar system. The recharge station and prepaid energy meter are shown connected to each via RF module in the project so that prepaid energy meter could send an alert of exhausting recharge amount to the recharge station and the recharge station could send an SMS to the consumer to make a recharge soon again. In this project a circuit is designed that would work as electricity recharge station and an additional circuit is designed that could integrate with the regular household energy meters and capable of counting down energy usage and cut off the main supply once the energy usage countdown reaches zero. delay(100); // Delay of 1000 milli seconds or 1 second. The loads will be connected between the phase wire and the NO pin of the relay. If D0 bit of decoder IC is set HIGH, an alert message of low balance is shown on LCD screen and function to send SMS alert is called. A consumer first needs to make an energy recharge. By default, the LDR has low resistance and but when the Imp / kWh LED of the front panel of EEM blinks, its resistance is increased. In the project, address byte of both the receiver and transmitter modules is set to 0x00. Inside the function beginTransmission() method from wire library is used to initiate serial communication. HT12E is capable of encoding 12 bits, out of them 8 are address bits and 4 are data bits. Text: SocketModem Test Board Serial Test/Demo Board Block Diagram Block Diagram for the SocketModem GSM /GPRS , been some public concern about possible health effects of using GSM modems. If the available energy balance is exhausted, the Arduino Mega drives the relay contactor to NC point cutting off the main supplies. GSM Module The GSM module has four pins Tx, Rx, Vcc and GRND. % The pins where tactile switches and D0 bit of Decoder IC are connected are set to digital input. As the user presses the button connected to A3 pin of Arduino UNO, the recharge amount is saved to location 1 on address B01010000 on EEPROM and the units of electricity recharged in the terms of number of blinks of the Imp / kWh LED of the front panel of EEM are saved. The pins where tactile switches are connected are assigned to variables b1, b2, b3 and b4. }?rc1yFomj{_ f_OM@|''OoWo-lU%EPU Text: Training Catalogue GSM , NMT and UMTS Year 2000 E Training Catalog GSM , NMT and UMTS , .169 ERA/GD/X EN/LZT 123 1210 R7B 00-12-19 Ericsson GSM /Index 1 Table of Contents , . 25 GSM System Survey , . Get instant insight into any electronic component. On running a 100 Watt bulb for 1 minute intervals, on average 5.333 blinks were received. The write() method is used to write data and endTransmission() method is used to close the transmission. Text: registration of electric energy . In 10 hours, it will consume 1 KW of electricity. Revised package contents and , .9 Functions GSM Modes , .16 Chapter 3 Using Your Wireless Modem, Abstract: sim gsm modem circuit diagram gsm modem sim 300 interface with microcontroller full automatic Washing machines microcontroller CIRCUIT DIAGRAM FOR sim 300 gsm modem RF toy plane circuit diagram MTSMC-G-F1 gsm modem sim 300 block diagram GSM based motor control circuit diagram SMA RF connector semi-rigid void eeprom_i2c_write(byte address, byte from_addr, byte data) {. The circuit developed should connect between the loads and neutral output of a regular electricity meter. \ptq4Ws_VfA^+U Text: marketing concepts such as prepaid SIM cards, growth in the international market for GSM terminals , chipset generation for GSM The HiGOLD signal processor comprises two powerful digital signal processors with firmware containing all the DSP algorithms needed for full-rate GSM channel and speech , analog circuit contains all the A/D and D/A converters for Components 1/98 the baseband and , machines now available for GSM . mySerial.println(AT+CMGS=+91xxxxxxxxxx r); mySerial.print(Rechange Done, MRP:Rs.);// The SMS text you want to send. The calibrated value for comparison with the value from ADC was set to 300 during project testing. Although research on , SocketModemTM GSM /GPRS Embedded Data/Fax Wireless Modem MTSMC-G-F1 Global GSM /GPRS Class 10, 900/1800 MHz MTSMC-G-F2 Global GSM /GPRS Class 10, 850/1900 MHz Developer's Guide Global SocketModem GSM /GPRS Developer's Guide MTSMC-G-F1 GSM /GPRS Class 10, 900/1800 MHz MTSMC-G-F2 GSM /GPRS, Abstract: No abstract text available The program code will run on the Arduino UNO. The meter makes accurate , corresponds to the selected energy type for the meter . The pins 1, 2 and 3 of the EEPROM IC are connected to ground as at any time the recharge station will have only single EEPROM plugged in. The data from a memory address is requested using requestFrom() method and if available checked by available() method, is read using read() method. <>>> An object of LCD class is declared and mapped with the Arduino pins. Therefore, in 10 hours, a 100 Watt load will consume 1KWH or 1 unit of electricity. Active energy , an advanced single phase electricity meter for active energy . A memory stick is used as an alternative to smart card which will store the recharge information from the recharge station and could be plugged to the circuit integrated to energy meters for regulating main supplies. 12 Test Bench Diagram , ). It has an LCD display and a 4-switch keypad for human interaction. So, as the voltage detected and digitized from A0 of Arduino MEGA exceeds the reference value 300, a single blink of Imp / kWh LED of front panel of EEM is recorded and a variable in the program code holding the number of recharged units in the form of number of blinks or pulses is decremented by one. So the meter rating is confirmed to be 3200 impulse/KWH. If pos variable is set to 20, digital input from buttons is read and a message indicating recharge process is shown on LCD. The message is sent to an imaginary 91xxxxxxxxxx number which can be replaced with any real mobile number. endobj The meter rating should be confirmed and well known to write Arduino code for calculation of energy consumption and balance deduction. Only D0 data bit of encoder needs to be used for sending alert of low energy balance to the recharge station. If the sensor value exceeds 300, the puls variable is decremented by one and reduced balance in pulses is written back to EEPROM. On pressing a tactile switch, the respective Arduino pin gets short-circuited to. There are four switches in the keypad that are connected to the following pins with given functions assigned to them , The switches are connected between ground and the Arduino pins. The user can increase or decrease recharge package by pressing buttons connected to A0 and A1 pins of Arduino and on pressing button connected to A3 pin, selected recharge is shown on the LCD and the recharge information is saved to the EEPROM in terms of ruppes as well as pulses.