CN106792534A - One kind digitlization emergency rescue system - Google Patents

One kind digitlization emergency rescue system Download PDF

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Publication number
CN106792534A
CN106792534A CN201611218990.1A CN201611218990A CN106792534A CN 106792534 A CN106792534 A CN 106792534A CN 201611218990 A CN201611218990 A CN 201611218990A CN 106792534 A CN106792534 A CN 106792534A
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CN
China
Prior art keywords
radio
help
mobile phone
base station
emergency
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611218990.1A
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Chinese (zh)
Inventor
于浩
龚威
潘雷
王慧慧
李梅
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Tianjin Chengjian University
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Tianjin Chengjian University
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Publication of CN106792534A publication Critical patent/CN106792534A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

One kind digitlization emergency rescue system, including emergency calling-for-help mobile phone, radio frequency direction finder, call for help transmitter and base station, the emergency calling-for-help mobile phone is received calls for help the signal that transmitter sends, and by this signal input to radio frequency direction finder, emergency calling-for-help mobile phone passes through GSM two-way communications with first-aid centre, with base station two-way communication；The emergency calling-for-help mobile phone includes that gsm module, radio-frequency transmissions receive ISM modules, keyboard and display module, sound circuit, SIM, charging control circuit and battery；The base station receives ISM modules and constitutes by charging circuit and radio-frequency transmissions；The calling for help transmitter is made up of transmitting chip and the connection of PIC microprocessors；The radio-frequency transmissions that radio-frequency transmissions inside the emergency calling-for-help mobile phone are received in ISM modules and base station receive ISM modules and are communicated.Using GSM network communication and location technology, ISM radio communications and directional technology and embedded technology, can effectively ensure the position of user can be accurately measured the system.

Description

One kind digitlization emergency rescue system
Technical field
The invention belongs to a kind of city personnel emergency alarm salvage system, more particularly to a kind of digitlization Emergency Assistance system System.
Background technology
City is the economic, political, cultural of certain area, information and service centre, and city is sent out in national economy and society Leading role is played in exhibition, it is the important symbol of modern civilization.And digitalized city, refer to the informationization in city, it is to use Digitized means are processed, analyzed and manage whole city, promote the stream of people, logistics, cash flow, information flow, the traffic in city The unobstructed and coordination of stream.Digitalized city be regulation and control city, predicted city, supervision city provide revolutionary means, be right A kind of essential description of direction for urban development.Up to the present, the development of the digitalized city of China is extremely rapid, but Also some new social concerns are inevitably occurred in that, some accidents often such as occurs in city, it is particularly aged Change the arriving of society, it is inevitable to occur that some need the situation of SOS in city.Therefore, how application modernization is digital Technological means, makes to need the people for obtaining Emergency Assistance to access timely to help, and is the current problem be badly in need of and solving.
The content of the invention
It is an object of the invention to provide one kind digitlization emergency rescue system, the system is communicated and is positioned using GSM network Technology, ISM radio communications and directional technology and embedded technology, can effectively ensure user's using this three method for relocating Position can be accurately measured.
As above conceive, the technical scheme is that：One kind digitlization emergency rescue system, it is characterised in that：Including tight Anxious mobile phone for help, radio frequency direction finder, calling for help transmitter and base station, the emergency calling-for-help mobile phone is received calls for help the letter that transmitter sends Number, and by this signal input to radio frequency direction finder, emergency calling-for-help mobile phone passes through GSM two-way communications with first-aid centre, double with base station To communication；The emergency calling-for-help mobile phone includes that gsm module, radio-frequency transmissions receive ISM modules, keyboard and display module, voice electricity Road, SIM, charging control circuit and battery, gsm module receive ISM modules, keyboard and display module, language with radio-frequency transmissions Sound circuit, SIM and charging control circuit are bi-directionally connected, and radio-frequency transmissions receive same by one between ISM modules and gsm module Step signaling interface SPI communication；The base station receives ISM modules and constitutes by charging circuit and radio-frequency transmissions；The calling for help transmitter It is made up of transmitting chip and the connection of PIC microprocessors；Radio-frequency transmissions inside the emergency calling-for-help mobile phone receive ISM modules and base Radio-frequency transmissions in standing receive ISM modules and are communicated.
Above-mentioned radio-frequency transmissions receive ISM modules includes RF transceiver, microcontroller and TX/RX change-over switches；Institute RF transceiver and microcontroller two-way communication are stated, RF transceiver is bi-directionally connected with TX/RX change-over switches.
Above-mentioned microcontroller uses MSP430F1232.
Above-mentioned RF transceiver uses CC1020.
TX amplifiers are connected between above-mentioned RF transceiver and TX/RX change-over switches.
The internal memory that radio-frequency transmissions in above-mentioned base station receive ISM modules is identical with emergency calling-for-help mobile phone internal memory.
The multilayer location technology that the present invention is positioned using GSM and ISM wireless communication technologys and GSM network positioning and radio frequency, In the case where there is distress call, can rapidly and accurately determine to call for help the accurate location of people, and voice can be automatically set up Call, enables the rescue personnel scene of arriving in the very nick of time to succour.For acute disease patient, the medical personnel of first-aid centre can also pass through Voice communication is instructed to call for help people and carried out necessary saving oneself before ambulance arrival, it is also possible to which Direct Others carries out some and rescue to it Assistant engineer makees.
Brief description of the drawings
Fig. 1 is theory diagram of the invention；
Fig. 2 is the theory diagram of emergency calling-for-help mobile phone MFAS；
Fig. 3 is the theory diagram of radio-frequency transmissions receiver module ISM；
Fig. 4 is the traffic diagram between emergency calling-for-help mobile phone and base station；
Fig. 5 is the call duration time graph of a relation between emergency calling-for-help mobile phone and base station；
Fig. 6 is the repeat queries figure after inquiry failure；
Fig. 7 is the situation schematic diagram of other base station in response.
Specific embodiment
1st, system composition：As shown in Figure 1：One kind digitlization emergency rescue system, is surveyed by emergency calling-for-help mobile phone MFAS, radio frequency To instrument DESI, call for help transmitter IAT and base station BS composition.The emergency calling-for-help mobile phone MFAS receives calling for help transmitter IAT and sends Signal, emergency calling-for-help mobile phone MFAS by this signal input to radio frequency direction finder DESI, in emergency calling-for-help mobile phone MFAS and first aid The heart passes through GSM two-way communications, with base station BS two-way communication.
1. it is as shown in Figure 2：The main gsm modules by Wavecom of emergency calling-for-help mobile phone MFAS are (similar to mobile phone core portion Point) and a radio-frequency transmissions reception ISM module composition.Gsm module is supplied to user one by ARM embedded systems part and one The individual User Exploitation platform for being referred to as OPENAT, allows user to write the application program of oneself, and by module protocol and inside Software enters line interface.This module is the control core of emergency calling-for-help mobile phone MFAS.As shown in figure 3, radio-frequency transmissions receive ISM moulds Block is mainly to be changed by a microprocessor MSP430F1232,25kHz narrow emissions reception chip a CC1020 and TX/RX Switch composition, the transmitting receives chip CC1020 and microcontroller MSP430F1232 two-way communications, and transmitting receives chip CC1020 and TX/RX change-over switches are bi-directionally connected, and TX amplifiers are connected between them.Radio-frequency transmissions in mobile phone are received ISM modules are realized with the contact of gsm module by a synchronizing signal interface SPI.
In order that the elderly can easily use emergency calling-for-help mobile phone MFAS, the Cell Phone Design is into a key-shaped formula.And And, in order to improve the reliability of system, the mobile phone can simultaneously use two SIMs of heterogeneous networks.
2. radio frequency direction finder DESI has used time diffusion RF phse direction finder DESD.It applies a kind of duplex measurement The method for receiving signal, i.e., traditional time diffusion measuring method, meanwhile, the method that it also applies signal phase difference.Pass through The frequency that instrument internal exceedes KHz inquires to dual-antenna system, data are analyzed with treatment, it is to remove dry Disturb signal.And, relative compensation calculation is carried out to signal measurements, to obtain accurate result.So, in most of situation Under, the direction that target reflector sends signal can be obtained by by the result of one-shot measurement.
3. base station BS receives ISM module structures by charging circuit and one with emergency calling-for-help mobile phone internal memory identical radio-frequency transmissions Into it is both as the charger of emergency calling-for-help mobile phone, and basic station as system uses.There is an identification code its inside ID.Radio-frequency transmissions in mobile phone receive ISM modules and are communicated with the radio-frequency transmissions reception ISM modules in base station.
4. transmitter IAT is called for help to be made up of transmitting chip and PIC microprocessors.During mobile phone charges, user should Carry with calling for help transmitter IAT.The remote-control key of the similar automobile of transmitter, but its only one of which button are called for help, works as user After pressing this button, it can trigger emergency calling-for-help mobile phone MFAS to send emergency SMS messaging breath to first-aid centre.
2nd, basic functional principle of the invention is：The system has used three method for relocating, so as to ensure the position of user Putting can be found and accurately measure.First reorientation：Positioned using GSM network, it will provide emergency calling-for-help mobile phone MFAS Log in the position of antenna；Second reorientation：Family positions, i.e., the ISM modules of ISM modules and base station BS in special mobile phone MFAS Communicated, to search out the accurate code (ID) of user base station, and determined that user is near base station.3rd resets Position：After user sends emergency message, special mobile phone MFAS will control ISM modules to send out a signal for help and confirmation code, this Individual signal can cover the scope for 2km more than radius.Using it is triple closely position, compensate for GSM login positions information Error, has reached the purpose of accurate measurement.
Its detailed process is：When user presses emergency calling-for-help mobile phone MFAS or calls for help the button of transmitter IAT, carry out tight Call on urgently when rescuing, MFAS first confirms that whether it is located near base station BS, i.e. MFAS is by its internal radio-frequency transmissions reception ISM mould Block sends inquiry message to base station BS, after BS receives inquiry message, its ID for being stored is sent to MFAS, and MFAS is received back After electricity, by this code ID write-ins SMS.Because the scope that radio frequency can be covered is exactly its residence, user should be In the family of oneself, thus first-aid centre FAC just learns the particular location of calling for help.
Also a kind of situation：Not in (near base station BS) family, emergency calling-for-help mobile phone MFAS is to base for the person that sends distress call After the BS that stands sends inquiry message, cannot respond.At this moment the network that first-aid centre FAC can be logged according to emergency calling-for-help mobile phone MFAS Aerial position confirms the about position of person for help.After emergency tender reaches this antenna institute overlay area, started by SMS and exhaled Radio-frequency transmissions in the person's of rescuing emergency calling-for-help mobile phone MFAS receive ISM modules (it can also be provided that automatic), are allowed to maximum The timing of TX power sends radiofrequency signal.Rescue personnel so on emergency tender just can confirm it by radio frequency direction finder DESI Place direction, and calling for help person is found in tracking.
Response, calling for help transmitter IAT institutes between the signal of transmitting such as Emergency Assistance mobile phone MFAS and base station (charger) BS The secondary rescue signal for sending has used three kinds of information frames to be transmitted altogether：
1. call for help transmitter IAT and send relief alarm message；
2. emergency calling-for-help mobile phone MFAS issues the searching message of base station；
3. base station BS issues the base station code message of emergency calling-for-help mobile phone MFAS.
CRC check has been used to carry out error checking in these three information frames, to improve the reliability of data transfer. CRC is encoded with decoding using POCSAG [3] algorithm, and each data frame can correct two error bits.
3rd, Emergency Assistance handset emissions base station queries message
In order to determine the particular location of person for help, emergency calling-for-help mobile phone MFAS first looks for base station BS.This process is divided into Two steps are carried out：The base station BS of oneself is first looked for, people are called HOME base station BSs.Only do not finding the HOME bases of oneself Standing second step of just carry out in the case of BS, that is, search all base station BSs that may be found.
If person for help is that emergency request is being sent near the HOME base stations of oneself, urgent call mobile phone MFAS holds The row first step is searched, and the searching message comprising HOME base station IDs is sent first.HOME base stations receive searching message, and by asking After asking whether the base station IDs in message, confirmation message are directed to the inquiry request of oneself, continuously beam back two identicals and contain The base station code response message of HOME base station IDs.It is to improve the reliability of communication to send two identical messages.Specific mistake Journey is as shown in Figure 4 and Figure 5.
If the HOME base station inquiries message that mobile phone for help MFAS is sent is due to being interfered or other reasons so that tight Anxious calling handset does not meet with a response by the regular hour, and at this moment mobile phone will repeat to send second.HOME base station inquiry reports Text, as shown in Figure 6.This process is at most repeated 3 times.
After failing by the inquiry of 3 times, urgent call mobile phone MFAS performs second step search, that is, searching to find All base stations.At this moment mobile phone sends an ID with complete zero content, this setting equivalent to default ID.When base station receives this During the querying command of one ID of sample, it is also necessary to postback the base station IDs of itself.The condition that this thing happens is in MFAS institutes Near the person for help position at place, also there are other base station BSs, as shown in Figure 7.
Similar with first step, if there is failure during inquiry, emergency calling-for-help mobile phone MFAS at most will retry 3 It is secondary.In addition, in the case of nearby there are several base stations, it is also possible to information collision problem occur.If these base stations are returned simultaneously Its ID is sent out, then the midair collision that data can occur so that MFAS cannot get correct data.In order to solve this problem, system Take following two methods：
First method is to make base station BS that certain time delay, the length of its delay time are done before ID data messages are postbacked The size of RX level when receiving querying command depending on BS.So, the RX level obtained by the BS in diverse location is also different, They would not postback ID messages in the same time.
Second method is, emergency calling-for-help mobile phone MFAS in the query message of the transmitting all base station BSs of inquiry, using not Same transmission power.First time query message is launched using small-power first；If do not met with a response, repeated at second During transmitting, power emission query message in use；Finally launched using maximum transmission power.So step up querying command The scope of covering, is reduced as far as it while receiving the quantity of message base station.
The midair collision of data is almost completely avoid by using above-mentioned two methods, the system.

Claims (6)

  1. It is 1. a kind of to digitize emergency rescue system, it is characterised in that：Including emergency calling-for-help mobile phone, radio frequency direction finder, call for help transmitting Device and base station, the emergency calling-for-help mobile phone is received calls for help the signal that transmitter sends, and by this signal input to radio frequency direction finder, Emergency calling-for-help mobile phone passes through GSM two-way communications with first-aid centre, with base station two-way communication；The emergency calling-for-help mobile phone includes GSM Module, radio-frequency transmissions receive ISM modules, keyboard and display module, sound circuit, SIM, charging control circuit and battery, It is two-way that gsm module receives ISM modules, keyboard and display module, sound circuit, SIM and charging control circuit with radio-frequency transmissions Connection, radio-frequency transmissions are received and pass through a synchronizing signal interface SPI communication between ISM modules and gsm module；The base station is by filling Circuit and radio-frequency transmissions receive ISM modules composition；The calling for help transmitter is by transmitting chip and PIC microprocessor connection groups Into；The radio-frequency transmissions that radio-frequency transmissions inside the emergency calling-for-help mobile phone are received in ISM modules and base station receive ISM modules and carry out Communication.
  2. 2. one kind according to claim 1 digitizes emergency rescue system, it is characterised in that：Above-mentioned radio-frequency transmissions are received ISM modules include RF transceiver, microcontroller and TX/RX change-over switches；The RF transceiver and microcontroller Device two-way communication, RF transceiver is bi-directionally connected with TX/RX change-over switches.
  3. 3. one kind according to claim 1 digitizes emergency rescue system, it is characterised in that：Above-mentioned microcontroller is used MSP430F1232。
  4. 4. one kind according to claim 1 digitizes emergency rescue system, it is characterised in that：Above-mentioned RF transceiver Using CC1020.
  5. 5. one kind according to claim 1 digitizes emergency rescue system, it is characterised in that：Above-mentioned RF transceiver TX amplifiers are connected between TX/RX change-over switches.
  6. 6. one kind according to claim 1 digitizes emergency rescue system, it is characterised in that：Radio frequency hair in above-mentioned base station The internal memory for penetrating reception ISM modules is identical with emergency calling-for-help mobile phone internal memory.
CN201611218990.1A 2016-01-27 2016-12-26 One kind digitlization emergency rescue system Pending CN106792534A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610053465 2016-01-27
CN2016100534652 2016-01-27

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109941070A (en) * 2017-12-20 2019-06-28 长城汽车股份有限公司 A kind of vehicle monitoring method and device
CN111127851A (en) * 2019-12-25 2020-05-08 西安闻泰电子科技有限公司 Alarm positioning service method and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109941070A (en) * 2017-12-20 2019-06-28 长城汽车股份有限公司 A kind of vehicle monitoring method and device
CN111127851A (en) * 2019-12-25 2020-05-08 西安闻泰电子科技有限公司 Alarm positioning service method and system

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Application publication date: 20170531