AUTOMATIC VEHICLE ACCIDENT INFORMATION BY SMS SYSTEM (AVAIS SYSTEM) Gps gsm accident detection sys doc

GPS - GSM (SMS) Based Accident Detection SYS - K610 Page 1

GPS - GSM (SMS) Based Accident Detection SYS
K610
Introduction
This is the GPS based vehicle accident detection and security system. A GPS receiver must be receive
the signal of satellites to calculate a position (latitude and longitude) and send the data to Micro controller.
All function is done by Micro controller. MCU read the information of GPS Modem and display on LCD. In
the vehicle, has different sensor’s like, Fire Detection, CNG gas Leakage, Smoke detector or vibration
sensor etc. When any sensor detected in vehicle, MCU send location and sensor status VIA SMS to user.
In this project PIC microcontroller is used for interfacing to various hardware peripherals. The current
design is an embedded application, which will continuously monitor a moving Vehicle and report the status
of the Vehicle on demand. For doing so an PIC16Fxxx microcontroller is interfaced serially to a GSM
Modem and GPS Receiver. A GSM modem is used to send the position (Latitude and Longitude) of the
vehicle from a remote place. The GPS modem will continuously give the data i.e. the latitude and
longitude indicating the position of the vehicle. The GPS modem gives many parameters as the output,
but only the NMEA data coming out is read and displayed on to the LCD. The same data is sent to the
mobile at the other end from where the position of the vehicle is demanded. An MCU Internal EEPROM is
used to store the mobile number.
The Major Building blocks of this project are:
 Microcontroller based Interface
 GPS Receiver for tracking A Location Information.
 GSM Modem for remote communication (Send or receive SMS).
 External Sensor input’s
 16 x 2 LCD Module
 Relay and Buzzer
 Regulated power supply.
Specifications & Features:
 Four Digital Input for external Sensor interfacing = Active Low @ 5V DC
 16 x 2 LCD Display Module
 Status of external Sensor input’s and tracking information with LCD Display
 Operating voltage – 12 to 15V DC
 Operating current – 500ma (Aprox without GSM & GPS Module)
 Advance GPS Based real time Tracking system
 Tri-band GSM Interfacing to send and received SMS
 Can be operated from anywhere, no distance limit;
 Based on GSM Network, applied to many applications.
 Easy Messages to control and monitoring.
 Communicate from any other mobile phone (GSM or CDMA)
 On board Flash EEPROM to store the Cell number and Users settings (No require battery back up)
 User Programmable Cell Number to receive SMS from system
 User can be store or modified the User cell number by send a SMS
 Send SMS to mobile phones automatically while alarming. Send SMS to user mobile phones.
 Get inquiry status of location , Sensor Status, Buzzer (alarm), and relay output by SMS
 Relay Controlled (on / off) by SMS
 Relay based switching output for external load like, vehicle ignition, Siren, Strobe Light ETC
 Relay on / off LED Indication
 Internal Buzzer for alarm indication
 Power on LED Indication
 Diode protection for reverse polarity connection of DC supply to the PCB
 Onboard regulator for regulated supply to the kit
 Extremely easy to install
 PIC Microcontroller based design for greater flexibility and Advanced Features


The GPS - GSM (SMS) Based Accident detection / Tracking System suitable for below applications:
1. Vehicle tracking System
2. Human or animal tracking System
3. Vehicle security System
GPS Introduction
The Global Positioning System (GPS) is global navigation satellite system which uses a constellation of
between 24 and 32 Medium Earth Orbit satellites that transmit precise microwave signals, that enable
GPS receivers to determine their location, speed, direction, and time. GPS has become a widely used aid
to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses,
tracking and surveillance, and hobbies such as geo-caching and way marking. Also, the precise time
reference is used in many applications including the scientific study of earthquakes and as a time
synchronization source for cellular network protocols. GPS has become a mainstay of transportation
systems worldwide, providing navigation for aviation, ground, and maritime operations. Disaster relief and
emergency services depend upon GPS for location and timing capabilities in their life-saving missions.
The accurate timing that GPS provides facilitates everyday activities such as banking, mobile phone
operations, and even the control of power grids. Farmers, surveyors, geologists and countless others
perform their work more efficiently, safely, economically, and accurately using the free and open GPS
signals.
GPS Operation
A GPS receiver calculates its position by carefully timing the signals sent by the constellation of GPS
satellites high above the Earth. Each satellite continually transmits messages containing the time the
message was sent, a precise orbit for the satellite sending the message (the ephemeris), and the general
system health and rough orbits of all GPS satellites (the almanac). These signals travel at the speed of
light through outer space, and slightly slower through the atmosphere. The receiver uses the arrival time
of each message to measure the distance to each satellite thereby establishing that the GPS receiver is
approximately on the surfaces of spheres centered at each satellite. The GPS receiver also uses, when
appropriate, the knowledge that the GPS receiver is on (if vehicle altitude is known) or near the surface of
a sphere centered at the earth center. This information is then used to estimate the position of the GPS
receiver as the intersection of sphere surfaces. The resulting coordinates are converted to a more
convenient form for the user such as latitude and longitude, or location on a map, then displayed. It might
seem that three sphere surfaces would be enough to solve for position, since space has three dimensions.
However a fourth condition is needed for two reasons. One has to do with position and the other is to
correct the GPS receiver clock. It turns out that three sphere surfaces usually intersect in two points. Thus
a fourth sphere surface is needed to determine which intersection is the GPS receiver position. For near
earth vehicles, this knowledge that it is near earth is sufficient to determine the GPS receiver position
since for this case there is only one intersection which is near earth. A fourth sphere surface is also
needed to correct the GPS receiver clock. More precise information is needed for this task. An estimate of
the radius of the sphere is required. Therefore an approximation of the earth altitude or radius of the
sphere centered at the satellite must be known
GPS Block Diagram


The GPS Receiver consist of two units, first is active antenna which receives RF signals and amplifies it.
The antenna is active in the sense it takes power from the module and amplifies the signal for high
sensitivity. The RF signal is filtered and processed to generate NMEA format serial data output.
GSM Technology
GSM (Global System for Mobile Communications, originally Group Special Mobile), is a standard set
developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for
second generation (2G) digital cellular networks. Developed as a replacement for first generation (1G)
analog cellular networks, the GSM standard originally described a digital, circuit switched network
optimized for full duplex voice telephony. The standard was expanded over time to include first circuit
switched data transport, then packet data transport via GPRS (General Packet Radio services). Packet
data transmission speeds were later increased via EDGE (Enhanced Data rates for GSM Evolution). The
GSM standard is more improved after the development of third generation (3G) UMTS standard
developed by the 3GPP. GSM networks will evolve further as they begin to incorporate fourth generation
(4G) LTE Advanced standards. "GSM" is a trademark owned by the GSM Association.
The GSM Association estimates that technologies defined in the GSM standard serve 80% of the world's
population, encompassing more than 6 billion people across more than 212 countries and territories,
making GSM the most ubiquitous of the many standards for cellular networks.
About SMS (Short Message Service)
Short Message Service (SMS) is a text messaging service component of phone, web, or mobile
communication systems, using standardized communications protocols that allow the exchange of short
text messages between fixed line or mobile phone devices. SMS text messaging is the most widely used
data application
SMS as used on modern handsets was originated from radio telegraphy in radio memo pagers
using standardized phone protocols and later defined as part of the Global System for Mobile
Communications (GSM) as a means of sending messages of up to 160 characters, to and from GSM
mobile handsets. Since then, support for the service has expanded to include other mobile technologies
such as ANSI CDMA networks and Digital AMPS, as well as satellite and landline networks. Most SMS
messages are mobile-to-mobile text messages though the standard supports.
Circuit explanation
See the block diagram of unite. Is based on PIC16Fxxx (40 Pin) Micro controller. The complete projects
divided in different interfacing Part
1. Main micro controller unite, use as CPU
2. RS232 GPS / GSM Interfacing
3. 16 x 2 LCD Module
4. External FLASH EEPROM
5. Buzzer and Relay Output Section
6. Regulated power supply
Microcontroller (PIC16Fxxx)
This is the CPU (central processing unit) of our project. We are going to use a microcontroller of PIC
family. The various functions of microcontroller are like I. received GPS data from GPS and Decoding /
Display GPS data, sending and receiving SMS via GSM modem, Controlled the relay and buzzer, store
mobile number from receiving SMS and display the all information of various function on 16 x 2 LCD
Display
MCU Clock
Clock signal for the micro controller provided by crystal X1 (4 MHZ) and two 33PF (C1, C2) capacitors
hanging off it ensure correct loading for the crystal, so that it starts reliably.
LCD INTERFACE
The dot-matrix liquid crystal display controller and driver LSI displays alphanumeric, characters, and
symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4 or 8-bit
microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal


driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal
system can be interfaced with this controller/driver. A single HD44780U can display up to two 8-character
lines (16 x 2).
A LCD module, display the information. Micro controllers send the data signals through Pin 11 through 18
(RC0 – RC3) and control signal through 8 and 9 (RE0 and RE1) of the micro controller. Pin no 3 of the
LCD is used to control the contrast by using preset PR1
GPS and GSM Module INTERFACE (RS232)
The RS232, also more commonly known as the serial, specifications specifies that logic '1' is represented
by +12.5V and a logic '0' is represented by -12.5V. This obviously presents many problems for micro
controller that are running at +5V. That is where the level converter comes into play; it converter -12.5V to
0V and 12.5V into 5V, standard TLL logic levels. This makes interfacing with the micro controller
extremely easy.
The schematic shows the simplicity of the design by using one of IC’s level converters. It includes a
Charge Pump, which generates +10V and -10V from a single 5v supply. This IC. Also includes two
receivers and two transmitters in the same package. This is handy in many cases when you only want to
use the Transmit and Receive data Lines. You don't need to use two chips, one for the receive line and
one for the,
Pin Signal Pin Signal
1 Data Carrier Detect 6 Data Set Ready
2 Received Data 7 Request To Send
3 Transmitted Data 8 Clear To Send
4 Data Terminal Reedy 9 Ring Indicator
5 Signal Ground
The communication between the micro controller and the GPS receiver and GSM Module requires an RS-
232 interface which serves to convert the CMOS TTL output voltage of the micro controller (0-5 volt) into a
voltage of+/- 12 volt. The converter uses the MAX232 (U3) converter IC. The connection of MAX232 to the
GPS and GSM uses the RS232 data cable.
MCU Internal EEPROM Memory
PIC MCU devices have 128 bytes of data EEPROM with an address range from 0h to 7Fh that can retain
data for more than ten years. Users Cell Number and Various parameters can be stored in it, to obviate
the loss of latest settings in the case of power failure; the micro controller stores all the settings of the user
in the EEPROM. The memory ensures that the micro controller will read the last saved settings from the
EEPROM when power resumes. The micro controller can read and write data for all the parameters. The
EEPROM data memory allows byte read and writes. A byte write automatically erases the location and


writes the new data (erase before write). The EEPROM data memory is rated for high erase/write cycles.
An on-chip timer controls the write time. The write time will vary with voltage and temperature
External EPROM INTERFACE
A two-wire serial EEPROM (AT24C04) is used in the circuit to store the Cell number and other settings.
Data stored remains in the memory even after power failure, as the memory ensures reading of the latest
saved settings by the micro controller. This 12C bus-compatible- 2048-bit (2-kbit) EEPROM is organized
as 256x8 bits. It can retain data for more than ten years. Using just two lines (SCL and SDA) of the
memory, the micro controller can read and write the bytes corresponding to the data required to be stored.
SENSOR INTERFACE
A maximum of 4 sensors can be connected to the system, these can be found in the circuit diagram.
These sensors need to have their contacts open when in the inactive state (i.e. normally open) or active
low signal @ 5V DC. A power supply voltage of +5 VDC is available for each sensor at the corresponding
wiring terminals (CN2). There are many type of sensor available you can connect with the projects.
External detection Sensor’s interface to micro controller via Port, RA0 to RA3, (pin no 2 to 5). Port RA
Used as a digital Input Port and is pulled up via 10K resistors network (R-pack – RN2).
 PIR (Passive Infrared Detector) Sensor
 Smoke detector
 Flame Sensor
 Alcohol sensor
 Glass Break Sensor
 Sound Sensor
 Vibration sensor
 LPG GAS detector
 Magnetic door sensor
 FIRE sensor (Temperature sensor)
 Infrared / ultrasonic obstacle sensor
 Ultrasonic motion sensor
 Water Overflow Level Sensor,
 Oil Overflow Level Sensor,
 Water Leak Sensor,
 Temperature Sensor
 Shock Sensor
 Power failure sensor, etc.
NOTE: kit with two sensors 1] Flame (Fire) sensor [2] Smoke Sensor
BUZZER
A 12V buzzer is connected to port RD.6 (29) of the micro controller through a driver transistor (Q1). The
buzzer requires 12 volts at a current of around 100 ma, which can not provided by the micro controller. So
the driver transistor is added. The relay is used to addible alarm indication. Normally the buzzer remains
off. As soon as pin of the micro controller goes high, the buzzer operates.
RELAY INTERFACE
A single pole dabble throw (SPDT) relay is connected to port RD7 (30) of the micro controller through a
driver transistor (Q2). The relay requires 12 volts at a current of around 100 ma, which can not provided
by the micro controller. So the driver transistor is added. The relay is used to operate vehicle ignition,
external siren, electronic lock, CCTV camera, strobe light or any other electrical device ETC. Normally the
relay remains off. As soon as pin of the micro controller goes high, the relay operates. When the relay
operates and releases. Diode D1 is the standard diode on a mechanical relay to prevent back EMF from
damaging Q2 when the relay releases. LED L1 indicates relay is operated. LED has a current limiting
resistor in series. The LED / resistor combination is simply in parallel with the relay
HOW to Connect Load with Relay?


When the project is working and according to its load, it could happen an incorrect operating of the output.
If it is the case, you have to install a circuit between 2 relay's contacts used for the connection. See the
drawing map.
The output of the projects is controlled by a relay, allowing any load until 230V AC / 3 Amp. as maximum
consumption. The relay has 3 output terminals the normally open at quiescent (NO), the normally closed
at quiescent (NC) and the common. The operating of this mechanism is the same as a switch with two (2)
terminals NO and common, if you wish that the output will be activated during the timer, or between the
NC and the common to obtain the reverse operating. In the drawing, you could appreciate the typical
connection for a devices operating at 12 VDC and to operate at 230 VAC.
Power supply
the power supply circuit. It’s based on 3 terminal voltage regulators, which provide the required regulated
+5V and unregulated +12V.
Power is deliver initially from standard 12V AC/DC adapter or 12V_500ma Transformer. This is fed to
bridge rectifier (D3, 4, 5, 7) the output of which is then filtered using 1000uf electrolytic capacitor and fed
to U5 (voltage regulator). U5 +5V output powers the micro controller and other logic circuitry. LED L2 and
its associate 1K current limiting resistors provide power indication. The unregulated voltage of
approximately 12V is required for GPS and GSM Modem and relay, buzzer driving circuit
PART EXPLANATION
Special Micro controller Features:
 High performance RISC CPU
 Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle
 2 ~ 4K FLASH Program Memory,
 128 bytes of Data Memory (RAM)
 10-bit multi-channel Analog-to-Digital converter
 Power-on Reset (POR)
 Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
 Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
 Programmable code protection
 Power saving SLEEP mode
 Selectable oscillator options
 Low power, high speed CMOS FLASH / EEPROM technology
 Fully static design
 Single 5V In-Circuit Serial Programming capability
 Wide operating voltage range: 2.0V to 5.5V
 High Sink/Source Current: 25 mA
 Commercial, Industrial and Extended temperature ranges
 Low-power consumption:
Micro controller PIC16Fxxx
PIC (Peripheral interface controller) is the IC while was enveloped to control the peripheral device,
dispersing the function of the main CPU. PIC has the calculation function and the memory like the CPU
and is controlled by the software. However the throughput, the memory capacity isn’t big. It depends on
kind of PIC but the maximum operation clock frequency is about 20MHZ and the memory capacity to write


the program is about 1K to 4K words. The clock frequency is related with the speed to read the program
and to execute the instruction. Only at the clock frequency, the throughput cannot be judged. It changes
with the architecture in the processing parts for same architecture; the one with the higher clock frequency
is higher about the throughput. The point, which the PIC convenient for is that the calculation part, the
memory, the input/output part and so on, are incorporated into one piece of the IC. The efficiency, the
function is limited but can compose the control unit only by the PIC even if it doesn't combine the various
IC's so, the circuit can be compactly made. More information please refer Data sheet 0f PIC 16Fxx
Light emitting Diode (LED)
A light-emitting diode (LED), is an electronic light source. Luminescence from an electrically stimulated
crystal had been observed as early as 1907. The LED was introduced as a practical electronic component
in 1962. All early devices emitted low-intensity red light, but modern LEDs are available across the visible,
ultraviolet and infra red wavelengths, with very high brightness.
LEDs are based on the semiconductor diode. When the diode is forward biased (switched on), electrons
are able to recombine with holes and energy is released in the form of light. This effect is called
electroluminescence and the color of the light is determined by the energy gap of the semiconductor. The
LED is usually small in area (less than 1 mm2) with integrated optical components to shape its radiation
pattern and assist in reflection.[2]
LEDs present many advantages over traditional light sources including lower energy consumption, longer
lifetime, improved robustness, smaller size and faster switching. However, they are relatively expensive
and require more precise current and heat management than traditional light sources.
Applications of LEDs are diverse. They are used as low-energy indicators but also for replacements for
traditional light sources in general lighting, automotive lighting and traffic signals. The compact size of


LEDs has allowed new text and video displays and sensors to be developed, while their high switching
rates are useful in communications technology.
Crystal oscillator
A crystal oscillator is an electronic circuit that uses the mechanical resonance of a vibrating crystal of
piezoelectric material to create an electrical signal with a very precise frequency. This frequency is
commonly used to keep track of time (as in quartz wristwatches), to provide a stable clock signal for digital
integrated circuits, and to stabilize frequencies for radio transmitters/receivers.
GSM Modem
This GSM Modem can accept any GSM network operator SIM card and act just like a mobile phone with
its own unique phone number. Advantage of using this modem will be that you can use its RS232 port to
communicate and develop embedded applications. Applications like SMS Control, data transfer, remote
control and logging can be developed easily.
The modem can either be connected to PC serial port directly or to any microcontroller. It can be used to
send and receive SMS or make/receive voice calls. It can also be used in GPRS mode to connect to
internet and do many applications for data logging and control. In GPRS mode you can also connect to
any remote FTP server and upload files for data logging. This GSM modem is a highly flexible plug and
play quad band GSM modem for direct and easy integration to RS232 applications. Supports features like
Voice, SMS, Data/Fax, GPRS and integrated TCP/IP stack.
GPS Modem
Global Positioning System (GPS) satellites broadcast signals from space that GPS receivers, use to
provide three-dimensional location (latitude, longitude, and altitude) plus precise time. GPS receivers
provides reliable positioning, navigation, and timing services to worldwide users on a continuous basis in
all weather, day and night, anywhere on or near the Earth. ultra-sensitive GPS receiver can acquire GPS
signals from 65 channels of satellites and output position data with high accuracy in extremely challenging
environments and under poor signal conditions due to its active antenna and high sensitivity. The GPS
receiver’s -160dBm tracking sensitivity allows continuous position coverage in nearly all application
environments.
The output is serial data of 9600 baud rate which is standard NMEA 0183 v3.0 protocol offering industry
standard data messages and a command set for easy interface to mapping software and embedded
devices.


Features
High sensitivity -160dBm
Searching up to 65 Channel of satellites
LED indicating data output
Low power consumption
GPS L1 C/A Code
Supports NMEA0183 V 3.01 data protocol
Real time navigation for location based services
Works from +12V DC signal and outputs 9600 bps serial data
Magnetic base active antenna for vehicle rooftop installation
LM7805 (3 TERMINAL VOLTAGE REGULATER)
This is used to make the stable voltage of +5V for circuits. The LM7805 is three terminal positive
regulators are available in the TO-220 - package and with several fixed output voltages, making them
useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and
safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided,
they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, More
information please refer Data sheet 0f LM7805
MAX232
The MAX232 is an integrated circuit that converts signals from an RS-232 serial port to signals suitable for
use in TTL compatible digital logic circuits. The MAX232 is a dual driver/receiver and typically converts the
RX, TX, CTS and RTS signals. The drivers provide RS-232 voltage level outputs (approx. ± 7.5 V) from a
single + 5 V supply via on-chip charge pumps and external capacitors.
16 x 2 LCD Modules
A16 x 2 LCD controllers is one of the most common dot matrix liquid crystal display (LCD) display
controllers available. Hitachi developed the microcontroller specifically to drive alphanumeric LCD display
with a simple interface that could be connected to a general purpose microcontroller or microprocessor.
Many manufacturers of displays integrated the controller with their product making it the informal standard
for this types this type of displays. The device can display ASCII characters, and some symbols in two 16
character lines.


FLASH EEPROM – AT24C04
The AT24C04 are 4K bit electrically erasable programmable memories (EEPROM), organized as 2 blocks
of 256 x 8 bits. They are manufactured in SGS-THOMSON’s Hi-Endurance Advanced CMOS technology,
which guarantees an endurance of one million erase/write cycles with data retention of 40 years. The
memories operate with a power supply value as low as 1.8V for the ST24C04R The memories are
compatible with the I2C standard, two wire serial interface which uses a bi-directional data bus and serial
clock.
The memories carry a built-in 4 bit, unique device identification code (1010) corresponding to the I2C bus
definition. This issued together with 2 chip enable inputs (E2, E1) so that up to 4 x 4K devices may be
attached to the I2C bus and selected individually. The memories behave as a slave device in the I2C
protocol with all memory operations synchronized by the serial clock. Read and write operations are
initiated by a START condition generated by the bus master. The START condition is followed by a stream
of 7 bits (identification code 1010), plus one read/write bit and terminated by an acknowledge bit.
SPDT RELAY – 12V
It closes the voltage less point of contact while the remote control works to control the equipment outside.
The relay takes advantage of the fact that when electricity flows through a coil, it becomes an
electromagnet. The electromagnetic coil attracts a steel plate, which is attached to a switch. So the
switch's motion (ON and OFF) is controlled by the current flowing to the coil, or not, respectively. A very
useful feature of a relay is that it can be used to electrically isolate different parts of a circuit. It will allow a
low voltage circuit (e.g. 5VDC) to switch the power in a high voltage circuit (e.g. 230 VAC or more). The
relay operates mechanically, so it cannot operate at high speed.

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Project operation
To operate projects in first time, please some important steps, following order
1] Insert the SiMCARD in GSM Module SIM Holder and connect the GSM Antenna
 Do not insert the SIm Password Protection in SIMCARD (SIMPIN)
 Before use the sim in GSM Module Delete ALL SMS or Massages from SIM Memory.
2] Connect the GPS AND GSM Module with main board VIA RS232 Data Cable, and apply 12V DC
power from main board (CN5) DC PIN Connection (please check PCB Components Overlay).
 Connect GPS Module to CN11
 Connect GSM Module to CN8
3] Connect the 12V AC/DC power supply to board Via CN10
 After power LED L2 should be on
 Set the LCD Contrast by Preset PR1
 On the LCD, Display the Welcome Messages “WELCOME TO GSM/GPS ACCIDENT
DETECTION SYS"
 In the GSM module PWR LED (Red) should be on
 NW LED-Green (Network Statues) Will be Flash every half second
 After the network activation NW LED Flash every 3 to four seconds. That means GSM
modem activated in network
4] To configured the GSM Module
 Turn off the Power of system. To full system turn off disconnect main Board Power input
 Press and hold the switch SW1
 Turn on the system
 After Turn on the system, LCD showing Massage “"CONFIG_GSM_MODEM < STEP 1 >
 After the fourth steps completion, restart the all system
5] To delete SMS from SIMCARD Memory Press switch SW1, After the GSM Module network
activation. For GSM network please check network LED in GSM Modem.
 Network LED flash every seconds = no network
 Network LED flash every 3 to 5 seconds delay = GSM network OK
6] Store user Cell Number in the System by Send SMS “##41” and “##42” (Check the SMS Format
Table)


PART (COMPONENTS) LIST GPS - GSM (SMS) Based Accident Detection SYS – K610
R1, 2, 7 - 1K [BROWN, BLACK, RED] (3 NOS)
R3, 4, 9 - 10K [BROWN, BLACK, ORANGE] (3 NOS)
R8 - 22E [RED, RED, BLACK]
PR1 - 20K Horizontal Preset
RN2 - 10K – 5 Pin Resistor Network
C1, 2 - 33PF DISC (2 NOS)
C3, 4, 9, 10 - 10UF / 25V Electrolytic (4 NOS)
C5, 8 - 0.1UF DISC (104 / 100nf) (2 NOS)
C6 - 1000UF / 16V Electrolytic
C7 - 47UF / 16V Electrolytic
X1 - 4MHZ Crystal
D1, 2 - 1N4148 DIODE (2 NOS)
D3 ~ 6 - 1N4007 DIODE (4 NOS)
L1 - 3mm OR 5mm Red LED
L2 - 3mm OR 5mm Green LED
Q1, 2 - BC547 / BC548 NPN TRANSISTOR (2 NOS)
U1 - PIC16F877A or PIC16Fxxx Micro controller (Pre Programmed MCU)
U3 - MAX232 / ICL232 – RS232 Level Converter
U4 - LM7805 – +5V 3 Terminal Voltage Regulator
U5 - 16 x 2 LCD Modules
CN2, 3, 4 - 2 PIN TERMINALS BLOCK (3 NOS)
SW1 - 2 pin / 4 pin Tact Switch
1nos - 40 Pin IC Socket for U1
1nos - 16 Pin IC Socket for U3
1nos - 16 PIN LCD CONNECTOR (16 Pin male / Female Burg strip)
CN8, 11 - 9 Pin Female “D” Connector (2 NOS)
RL1 - 12V SPDT RELAY (PCB MOUNT)
BZ1 - 12V DC BUZZER
1nos - Smoke Detection Sensor
1nos - Flame / FIRE Detector sensor
Kit purchase with GSM and GPS module, include following GSM & GPS Accessories
1nos - GSM Module with GSM Antenna + RS232 data Cable
1nos - GPS Module with GPS Antenna + RS232 data Cable
NOTE: - U2 (AT24C04 EEPROM, 8 PIN IC Socket, AND R5, R6 (4K7) NOT INCLUDE IN KITS, IT’S NOT
REQUIRED)

AUTOMATIC VEHICLE ACCIDENT INFORMATION BY SMS SYSTEM (AVAIS SYSTEM) Gps gsm accident detection sys doc

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