M2m industrial gprs ip modem gsm modem sms modem car alarm sms alerts based on the gsm network solution

Xiamen Caimore Communication Technology Co.,Ltd2 F, 37#, Wanghai Road, Software Park 2, Xiamen,China (361009)

Web: www.caimore.com/emain.asp Contact:Peter Zhang Email: [email protected]

Tel:+86 592 5901215 Web: www.caimore.com/emain.asp

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Car alarm SMS alerts based on the GSM network solutionAbstract: This article provides a car alarm SMS alarm system principle and

implementation of a GSM-based networks, a brief introduction of GSMBasic knowledge and technology, describes the GSM wireless transmission

used in automobile anti-theft alarm system SMS implementation. The practicalapplication

To get the desired results.Keywords: GPRS; DTU; Internet; car alarm;The first part of the demand analysisWith the rapid development of society, car era has quietly come into our

lives. Car sales worldwide each yearAmounted to more than 5000 million, ownership has more than 100 million.

After China's accession to WTO, automobile production and sales into the fastGrowth, great power status car have been identified. It is expected during

the "Eleventh Five-Year" Chinese car sales will maintain rapid growthSituation, especially private cars grew faster. With the development of

science and technology, more and more car theft technology, it isThey are very hard, has caused great harm to the world. Car alarm both for

carmakers or Social InsuranceIndustry has a very important research value, how to develop a range of

more stringent regulations, the development of more effective anti-carPirates of the device to reduce the loss of the owners is an important topic

for future research people. The more the use of vehicles stolen car alsoMore and more, car theft has become a major social problem.For the current upward trend in the world of auto theft, automobile

manufacturers are constantly improving anti-theft technology,Especially with the advances in microelectronics technology, automobile

anti-theft technology has been toward automation, intelligent direction. Sincecar

Vehicle mobility, it is impossible always and everywhere under the owner (orsecurity personnel) is monitored, so the use of

Technical prevention has been widely accepted by the public, also played asignificant role. Anti-theft devices for their car has been

It becomes a major problem for most car owners.Since the 1990s, the rapid development of electronic information

technology makes electronic information technology, data communicationtechnology,

Sensor technology, control technology, computer processing technologyand network technology and other efficient cars used in automobile anti-thefttechnology,

Promote the automobile anti-theft technology, highly intelligent, functionaldiversification.

http://www.caimore.com/emain.asp

mailto:[email protected]




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From the current development trend, car theft grab technology has evolvedfrom extending vehicle anti-theft device itself into a

Kind of network technology means fast efficient. The dominant ideology allcar anti-theft technology used is the same: increase

Plus car theft stolen vehicle technical difficulty to extend the time required;increase the risk of transfer of the stolen vehicle, turn curb car theft

To sell an important part of the dirty. Currently on the market the morecommon anti-theft device is designed for the former point of view - by

Plus technical difficulty to extend the stolen car theft vehicle needs time,including several types: mechanical; electronic alarm

Password recognition engine computer chip locking manner; GPS or radiopositioning mode; mode. While these techniques

Or measures does play in car theft in a positive role, but there are someshortcomings: mechanically simple,

But the possibility inconvenient to carry and destroyed high; affordableelectronic alarm device because of technical content is not high, face special

Scanning door design with dummy row decoder device, in addition, frequentnuisance malfunction will lead to "crying wolf" knot

Bureau; high-tech password identification technology was great, butexpensive, and ordinary cars (engine without computer control system

EC) can not be retrofitted! Some other new technologies just beginning tobe put into use in some European countries, in the production per new

Identifying the car's chassis to install high-tech circuit chip on the identity ofthe vehicle as possible, but high capital costs

And a large number of existing vehicles is difficult to solve. GPS positioninganti-theft measures or radio belonging to set back

Total thinking - identifying stolen vehicles, increasing the risk of transfer ofthe stolen vehicle, in the case of their own anti-theft devices and equipment,the overall price of inputs not considered, on the technical point of view, andthere could intentionally or inadvertently cause the vehicle owners andwhereabouts

Disclosure, the owners do not want to believe that this is acceptable!1. Install flexible, can be arbitrary and cars are combined in a switch, the

switch dynamic real-time monitoring.2. Terminal low price, low communication fee; compared with other anti-theft

devices, DTU has a very competitive price. GeneralCar anti-theft devices in almost every capital investment reached more than

ten thousand yuan, while a DTU terminalUsually within one thousand yuan of. Further communications amazing low

rates, charges and SMS charges the same way,Just apply for a mobile GSM SIM card can be easy to use.3. The equipment is stable, the terminal always online; DTU is based on

GSM short message platform, built Siemens Tc35i






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End industrial grade communication module, industry-standard design.Watchdog software and hardware design to ensure system stability.

4. Alarm fast, simultaneous support of multiple phone numbers to receivealarm information; DTU as long as the monitor to switch the occurrence ofcertain change

When the technology, you can quickly send an alarm message to the ownerof the phone number, alarm procedure in about 10 seconds.

5. Easy to use, the owner can activate the alarm DTU The parking situation,such as working hours or at night time no car

, It can give DTU power real-time monitoring, if the DTU off by car can bedormant.

The second part of the system components1 Features:Our design of this message alarm terminal has flexible configuration, ease

of implementation, high reliability, timely warning and other specialPoint, as follows:

using Siemens's high-performance industrial grade GSM module Tc35isupports RS232 / RS485 transparent message transmission function,

which can send text messages to five phone numbers (based on customerneeds,

Increase the number of telephone numbers)support the six-way switch output control functionAlways onlinewatchdog hardware and software design to ensure system stabilityuse 5V ~ 35V voltage power supply adaptive wideranti-jamming design, suitable for harsh electromagnetic environment

applicationsconvenient system configuration and maintenance serial portSupport, English SMS

Interface:antenna interface 50Ω / SMA (female head)SIM card 3V / 5V auto-detection20PIN data interface, compatible with RS232 / RS485 / TTL data

interface and 6-channel digital input / output interfaceserial data rate 110 ~ 115200bits / s

Powered by:standard voltage + 9VDC / 500mAvoltage range of + 5 ~ + 35VDC

Other parameters:size 92.7x61.3x23 mm (not including antenna and mounting bracket)working environment temperature -20 ~ + 65ºCStorage Temperature -40 ~ + 85ºC95% relative humidity (non-condensing)






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2. Picture:

3. System Development Figure

4. System ApplicationCM350 SMS DTU combined switch control system, using the serial port todetect the status of the switch, the switch rapidly emerging situationWhen responding, sent by the user to set a good alarm content to the user toset a good phone number inIt works as follows:20PIN interface and user switches DTU connected as follows: thecorresponding signal lines (such as an alarm for the first road PIN1, firstRoad warning to PIN2, other road signal line socket 20PIN see definition) andsignal ground (PIN13 or PIN15) and useHouseholds connected to the alarm switchDTU's 20 PIN interface PIN1, PIN2, PIN3, PIN4, PIN6 and PIN8 (see 20PINinterface definition) pointsUsers can not detect the status of the six-way switch, when the user switchesfrom the off state to the closed state, DTU user presets goodThe content of messages sent to (up to five simultaneously transmittedtelephone number) on the corresponding telephone number. The content ofmessages and phone numbersParameter configuration tool.20PIN interface PIN foot is defined as follows:






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20PIN Data Interface 6-channel digital input / output interface diagram:

To sum up:Use of car anti-theft device Xiamen Caimore CM350 GSM DTU combinedswitch control system has been






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The most suitable choice for modern owners, easy to install, simple to use, theprice is very good, timely warning,System stability and other advantages have a typical modern automobileanti-theft technology, quiet and not disturbing, does not affect the steamCar performance and appearance, small footprint, not only realized themodern requirements of the owner of the antitheft device,Also a significant reduction in the expensive investment of other anti-theftsystem.



Devices & Hardware

M2m industrial gprs ip modem gsm modem sms modem car alarm sms alerts based on the gsm network solution