CN1420669A - Mobile personal handset with location tracking function - Google Patents
Mobile personal handset with location tracking function Download PDFInfo
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- CN1420669A CN1420669A CN 01132258 CN01132258A CN1420669A CN 1420669 A CN1420669 A CN 1420669A CN 01132258 CN01132258 CN 01132258 CN 01132258 A CN01132258 A CN 01132258A CN 1420669 A CN1420669 A CN 1420669A
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Abstract
A mobile private handset with the function of position tracking includes GPS receiving module for positioning the personal location, GSM module for transmitting the radio data information, a main control unit for processing the data, an alarm interface constructed by the bottons of alarming for help and connected with the main control unit through I/O interface, a device for setting the dormancy and wake up of operating by remote radio and a device for remote modifying the operation mode of hand set at the monitoring end. It can realize the real time tracking and monitoring for personal location as well as has the function of personal alarming and seeking for help.
Description
Technical field
The present invention relates to a kind of personal hand-held equipment that integrates location, communication, reports to the police and follow the tracks of.
Background technology
GPS personal hand-held device in the market is mainly used in individual location, checks own current individual position by the user.Obviously, this hand-held set can not be given Surveillance center with the message transmission of relevant this position, and therefore monitoring side can not check monitored person's position at any time, and in addition, this hand-held set does not have the function of flash appeal yet.
Chinese patent disclose for No. 00217097.3 a kind ofly have the location, the incorporate mobile unit of communicating by letter and report to the police, it is compared with simple individual positioning function, though also possess communication and the function of reporting to the police arranged, but because this equipment is to use in automobile, compare with personal hand-held device, generally bulky, the power consumption height, and move inconvenient.
In addition, compare with bulky mobile unit, hand-held set also needs to solve some problems of its uniqueness.For example, GSM, GPS module are integrated in the small and exquisite equipment of volume, jamproof problem is just very outstanding, especially when gsm module sends information, disturb very big, as not solving the operate as normal that certainly will influence product.
Summary of the invention
Purpose of the present invention provides the mobile personal handset with location tracking function of small and exquisite, compact, the low in energy consumption and strong anti-interference performance of a kind of volume.
A kind of mobile personal handset with location tracking function comprises: the GPS receiver module: the location that is used for the individual position; Gsm module: be used for the wireless transmission data message and give monitoring client; Main control unit: be used for deal with data; Wherein, the GPS receiver module links to each other with main control unit via serial line interface, and gsm module links to each other with main control unit via another serial line interface, is characterized in: this personal hand-held device also comprises remote alarm interface, system is made up of the warning button of seeking help, and it links to each other with main control unit by the I/O mouth; It comprises that also being used for long distance wireless is provided with the hand-held set dormancy and wakes the device that hand-held set is reworked up; It also comprises the device that is used for monitoring client long distance wireless modification hand-held set mode of operation; GPS receives and adopts GPS OEM module; GSM receives and adopts GSM OEM module; GPS module and gsm module are isolated by radome respectively; The gsm module antenna is built-in, and the GPS module antenna is external; GPS module and gsm module interface are established filter; It also is provided with LCDs, shows the wireless messages of receiving and sending.
Description of drawings
Fig. 1 is a hand-held set structural principle block diagram of the present invention.
Fig. 2 is the anti-interference skill schematic diagram of hand-held set of the present invention.
Fig. 3 is a hand-held set workflow diagram of the present invention.
Embodiment
Consult Fig. 1, personal hand-held device of the present invention mainly is made up of four module: GPS (Global Position System) receiver module (being called for short the GPS receiver module), global digital mobile cellular telecommunication module (abbreviation gsm module), main control unit MCU and remote alarm interface.
Its concrete function is achieved as follows:
The GPS receiver module comes receiving satellite signal by gps antenna, calculate then and handle, and provide current time, longitude and latitude and information such as travel direction, speed to main control unit MCU module, thereby determine the accurate position that the individual is current by the RS-232 serial line interface.Main control unit MCU sends current location information to gsm module by another RS-232 serial line interface at regular intervals by certain agreement then, and gsm module sends to Surveillance center immediately with this information, and therefore, Surveillance center can monitor the individual position at any time.Remote alarm interface is made up of the warning button of seeking help, after pressing this key, main control unit MCU receives this signal immediately, after carrying out the key dithering process, confirming as this key presses, then MCU sends individual position and alarm condition information to Surveillance center immediately, and Surveillance center can carry out respective handling according to the individual position.
Below each formed module be described in further detail:
One .GPS receiver module
Utilize the GPS location, all obtain certain observed quantity and realize by the observation gps satellite.These observed quantities comprise:
*The pseudorange that observation draws according to code phase.
*The pseudorange that observation draws according to carrier phase.
*Poor by the pseudorange that the integrated Doppler counting draws.
*The time delay that measures by interferometric method.
Be observed example with code phase, so-called code phase observation, the ranging code signal (C/A sign indicating number or P sign indicating number) of promptly measuring the gps satellite emission arrives the propagation time of user's reception antenna, and therefore this observation procedure is also referred to as time delay measurement.In order to measure the time delay of coded signal, need in receiver user, duplicate the ranging code signal, reach maximal correlation, even its corresponding code element alignment.Therefore, the phase-shift phase that is produced is the propagation time that the coded signal of satellites transmits reaches receiver antenna, and promptly the time postpones.At satellite clock and receiver clock fully synchronously and ignore under the situation of atmospheric refraction influence, resulting time delay multiply by the light velocity, just by the signal transmitting antenna of survey satellite to the geometric distance between the receiver user antenna, abbreviate as usually the satellite of surveying to the distance between the receiver.
The basic principle of utilizing GPS to carry out absolute fix is based on the distance (or range difference) between gps satellite and the receiver user antenna, and according to known satellite instantaneous coordinate, determines the some position at receiver user antenna place, i.e. the position of observation station.
GPS positions the essence of method, promptly is the space length resection in the surveying.Therefore, on an observation station, independently satellite is just much of that three in principle, and this moment, to be positioned at be the centre of sphere with three satellites respectively in the observation station, and respective distance is the ball of radius and the intersection point of place, observation station plane intersection line.But because GPS has adopted the one way range measurement principle, satellite clock and receiver clock are difficult to keep strict synchronism again simultaneously, so the satellite of actual observation, all contains the influence (so being called pseudorange traditionally) of satellite clock and receiver clock synchronization discrepancy to the distance between the receiver.About satellite clock correction, can application navigation astronomy in given relevant clock correction parameter revised, and the clock correction of receiver generally is difficult to determine exactly in advance.So, usually it as a unknown parameter, find the solution in the lump in data processing with the coordinate of observation station.Therefore, on an observation station,, just need four synchronous pseudorange measured values at least, that is to say, must observe four satellites simultaneously at least in order to find the solution four parameters (3 point coordinates parameters and 1 clock correction parameter) in real time.
Be placed in when user receiving equipment on the carrier of motion, and be under the dynamic situation, determine the localization method of the instantaneous absolute position of carrier, be called dynamic absolute fix.Dynamically absolute fix generally can only obtain seldom separating in real time of (or not having) redundant observation amount.This localization method is widely used in the navigation of motion carriers such as aircraft, boats and ships and land vehicle.
For making the small and exquisite and low-power consumption of hand-held set of the present invention, in specific embodiment, the present invention utilizes the small and exquisite GPS OEM module of high accuracy, low-power consumption and the volume of import as the GPS information receiving device, adopts RS-232C standard I/O mouth output serial data.The NMEA-0183 communication standard form that the dateout form adopts American National ocean Institution of Electronics to formulate.
Its performance is as follows:
*When using differential GPS, position error is less than 5m
*During no differential GPS, position error is less than 100m (OFF SA)
*During no differential GPS, position error is less than 15m (ON SA)
*Data noise is less than 0.2m/s
*Volume is small and exquisite, helps reducing complete machine and takes up space
The input of OEM plate, output statement are all by serial communication protocol, and data format is made as 8 data bit, 1 start bit, 1 position of rest, and no parity, baud rate default value are 4800.Its NMEA dateout adopts ascii character sign indicating number, its content comprise longitude, latitude, highly, numerous information such as speed, time, date, course, satellite situation, statement reaches tens of kinds more than.But the most commonly used is GGA locator data statement, and its structure is:
$GPGGA，【D1】，【D2】，【D3】，【D4】，……【D12】*hh【CR】【LF】
Wherein:
" $ "-statement beginning flag;
" GP "-talk identifier;
" GGA "-statement identifier;
", "-data field accords with respectively;
" * "-verification and identifier;
" hh "-verification and;
The data field content is respectively:
[D1]-Coordinated Universal Time(UTC) UTC (hhmmss);
[D2]-latitude (ddmm.mmm);
[D3]-north latitude or south latitude (N/S);
[D4]-longitude (dddmm.mmm);
[D5]-east longitude or west longitude (E/W);
The indication of [D6]-GPS state, 0=is invalid, and 1=GPS is effective, and 2=DGPS is effective;
[D7]-catch number of satellite (00～08);
[D8]-Horizontal Dilution of Precision HDOP (1.0～99.9);
[D9]-from the antenna height (9999.9～99999.9 meters) of mean sea level;
[D10]-geoidal height (999.9～9999.9 meters);
The term of validity of [D11]-differential GPS correction (if no DGPS is invalid);
[D12]-differential reference station sign (0000～1023);
[CR] [LF] is statement terminator.
Two .GSM modules
GSM is grown up by analog mobile cellular telecommunication.Gsm system has been concentrated modern source coding technique, chnnel coding, interweave, balancing technique, digital modulation technique, speech coding technology and slow frequency hopping technology have been introduced simultaneously a large amount of computer control and management in system.
GSM provides the several data business.As long as wireless transmission allows, it has consisted essentially of the most data services that offer fixed telephone subscriber PSTN and isdn user's (comprising some private network, as Packet Switch Data Network).Simultaneously, GSM also has the point-to-point short message service of transmission, and " the point-to-point short message service of mobile terminated " that can distinguish the reception short message (SMS-MT/PP) with make the GSM user can be (SMS-MO/PP) to " travelling carriage is called out point-to-point short message service " of another GSM user's short-message sending.And another kind of short message service " SMS-CB " (SMS-CB), and it can be with Fixed Time Interval with general short message all users broadcastings in given geographic area.Short message service is suitable for transmitting the business need of the following transmission of 160 characters.It uses the Common Control Channel of GSM, does not also influence the transmission of short message during the conversation.The advantage of short message service: transmission speed is fast, and individual data transmission low price does not take the voice communication channel.Because the data of numerous advantages of short message service and the each required transmission of gps system are all at 40 below the byte, so on communication mode, the short message service of gsm system is fit to the requirement of individual monitor network.
The access device that the present invention adopts the GSM OEM module of the small and exquisite and low-power consumption of import to net as GSM, its adopts the I/O interface level of RS-232C standard as control interface.The control port of gsm module satisfies GSM 07.07 and GSM 07.05 agreement, and main control unit carries out communication by serial ports and gsm module, uses gsm module to send personnel location information to Surveillance center.
Three. main control unit MCU
The processing of the existing data of main control unit MCU part has the control of switching value again, so select the MCS-51 series monolithic of 8bit in the present invention for use.Again because the peripheral components of this equipment is more, and the throughput of data is bigger with respect to other MCS-51 series, so dominant frequency adopts 22.1184MHZ, and select the MCS-51 Series chip of band 32K*8 ROM in the sheet for use, and have the SRAM of 1K*8, satisfy the demand of system, and stay very big leeway for later device upgrade.Reduce the composition cost of system simultaneously, improved the cost performance of this equipment greatly.
Four. remote alarm interface
Remote alarm interface is made up of the warning button of seeking help, it links to each other with main control unit MCU by the I/O mouth, after pressing this key, main control unit MCU receives this signal immediately, after carrying out the key dithering process, confirm as this key and press, then MCU sends individual position and alarm condition information to Surveillance center immediately.Surveillance center can carry out respective handling according to individual position and alarm condition information.For example, running in emergency circumstances, can report to the police to Surveillance center immediately and seek help.
Illustrate above,, concrete regulation has been made in the selection of GPS module and gsm module for guaranteeing the small and exquisite, compact of hand-held set of the present invention.In addition and since hand-held set generally by battery as power supply, so low-power consumption becomes another outstanding problem of hand-held set.For this reason, in the present invention, adopt the CMOS chip of low-power consumption, but also dormant selection is provided, with the purpose that reaches maximum power saving and lengthen working hours.
Obviously, GSM, GPS are integrated in the small and exquisite hand-held set of volume, jamming-proof problem just is even more important, and particularly when gsm module sends information, disturbs very greatly, as can not well solving, will influence the operate as normal of product.
For solving interference problem, the present invention shields isolation to gsm module and GPS module, for example realizes the isolation of GPS and GSM two big modules by the mode that adds radome.In addition, on software design, the present invention has adopted instruction redundancy and inquiry repeatedly, jamproof measures such as software trap.For example when module initialization is provided with to GPS, adopt to repeat at set intervals to call instruction SETUP-GPS-M12 () is set, guarantee that the GPS module is working properly; When handling gsm module information, adopt and export the AT instruction repeatedly, inquire about the GSM return instruction repeatedly, when gsm module is disturbed cisco unity malfunction, adopt overtime setting,, reopen gsm module automatically with software above behind the certain hour, usually the user is difficult to aware this process, also can not influence the operate as normal of hand-held set simultaneously.In addition, no interruption in the system, interrupt vector is provided with as follows, with anti-tampering:
NOP
NOP
RETI
In addition, in product casing design, adopted the gsm module antenna built-inly, and GPS provides antenna external mode, and its issuable interference is further reduced.At last, the present invention has also adopted anti-interference skill in the PCB design.
Radome single-point grounding, the method for carrying out filtering at interface as shown in Figure 2, have been adopted key component is shielded.
On holding wire, adopt the RC low-pass filtering in addition, to reduce signal bandwidth; The power pins place of integrated package carries out the filtering decoupling with low value capacitance on printing forme.In a word, through practical exploration and test, personal hand-held device of the present invention has effectively solved interference problem
Fig. 3 has provided the workflow diagram of hand-held set of the present invention.As seen from the figure, after hand-held set powers on,, enter sleep state and wait for start through the CPU initialization.After confirming have the start key to press, open GPS module and initialization successively, open gsm module and initialization.After receiving GPS information, and after confirming to arrive transmitting time, promptly send the positional information of hand-held set.After sending positional information, enter a determining program, judge whether that promptly new short message receiving receives.When confirming new short message is arranged, then this type of message is done further judgement again.The present invention provides three types judgement altogether at this: at first, if result's monitoring client configuration information of judging, then this configuration information is write SIM card, and change mode of operation, for example, short message service center number can be set, be provided with and send information time daytime at interval, send information time evening at interval etc.; Secondly, if result's dormancy information of judgement then makes hand-held set enter the dormancy operating state; At last, if the information of waking up then withdraws from resting state and recovers original operating state.After new short message is made respective handling, then should delete this message, can enter the program of conventional judgement amount of batteries subsequently, and shutdown programm.
When enforcement is of the present invention, can also increase some additional functions.For example, configurable LCDs in hand-held set shows GSM information thereby can receive and dispatch, and the numerical map of also can packing into shows current personnel location information.
Because the present invention integrates location, communication and warning and follows the tracks of, and can infer it and have broad application prospects.For example, the patrol police individual that can be widely used in the public security system gridding management is equipped with, to realize patrol police's fast dispatch, guarantee the very first time receive a crime report, responding; In addition, also can be used for popular individual and be equipped with, can realize the round-the-clock monitoring of family child; Can be used for the outdoor enthusiast; Also can be used for tracking to the valuable cargo transportation or the like.
In sum, hand-held set of the present invention has following function:
1. remote live is followed the tracks of the individual position, and this equipment is pressed certain hour and sent the individual position from trend Surveillance center at interval, thereby makes monitoring side can find the monitored person at any time.For example, this time interval has two, and daytime (6:00-18:00) interval and evening (18:00-6:00) can be revised setting respectively by sending configuration information by Surveillance center at interval.
2. when receiving the query statement of Surveillance center, can send a current location information immediately to Surveillance center.
3. a flash appeal button is arranged, make the user in case of emergency send current location immediately to Surveillance center and obtain contact.
4. send the start log-on message to Surveillance center when having start, send the function of shutdown log-off message during shutdown.
5. have long-range dormancy and the arousal function of being provided with.
6. have the low-power consumption working method, for example, the user can be set to long-time interval (＞=10 minutes) and send the individual position, thereby extends working time.
7. but Surveillance center's long distance wireless is provided with the mode of operation of hand-held set, and short message service center number specifically is set, and service centre number is set, and the time interval on daytime is set, and in the time interval in the evening is set.
8. voice prompt function and automatic shutdown function when having the battery electric quantity deficiency.
9. the simple operations button can convenient and swiftly be operated.
10. have LCDs, but the transmitting/receiving wireless short message, but the remote command monitored person of Surveillance center.
Claims (7)
1. mobile personal handset with location tracking function comprises:
GPS receiver module: the location that is used for the individual position;
Gsm module: be used for the wireless transmission data message and give monitoring client;
Main control unit: be used for deal with data;
Wherein, the GPS receiver module links to each other with main control unit via serial line interface, and gsm module links to each other with main control unit via another serial line interface,
It is characterized in that:
This personal hand-held device also comprises remote alarm interface, is to be made up of the warning button of seeking help, and it links to each other with main control unit by the I/O mouth.
2. the mobile personal handset with location tracking function according to claim 1 is characterized in that, it comprises that also being used for long distance wireless is provided with the hand-held set dormancy and wakes the device that hand-held set is reworked up.
3. the mobile personal handset with location tracking function according to claim 1 is characterized in that, it also comprises the device that is used for monitoring client long distance wireless modification hand-held set mode of operation.
4. according to claim 1,2 or 3 described mobile personal handsets, it is characterized in that GPS module and gsm module are isolated by radome respectively with location tracking function.
5. according to claim 1,2 or 3 described mobile personal handsets, it is characterized in that the gsm module antenna is built-in, and the GPS module antenna is external with location tracking function.
6. according to claim 1,2 or 3 described mobile personal handsets, it is characterized in that GPS module and gsm module interface are established filter with location tracking function.
7. according to claim 1,2 or 3 described mobile personal handsets, it is characterized in that it also is provided with LCDs, show the wireless messages of receiving and sending with location tracking function.
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| CN 01132258 CN1420669A (en) | 2001-11-21 | 2001-11-21 | Mobile personal handset with location tracking function |
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| CN 01132258 CN1420669A (en) | 2001-11-21 | 2001-11-21 | Mobile personal handset with location tracking function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006288A1 (en) * | 2006-07-05 | 2008-01-17 | Gree Electric Appliances Inc. Of Zhuhai | A remote location control method and system, remote control end and controlled end |
| WO2013016858A1 (en) * | 2011-07-29 | 2013-02-07 | 长沙中联重工科技发展股份有限公司 | Power management method, device and system for remote service terminal and engineering machinery |
| CN105472555A (en) * | 2008-03-07 | 2016-04-06 | 沈玮仑 | Device and method for communication with GPS equipment |
| CN102198319B (en) * | 2004-12-17 | 2017-05-03 | 耐克创新有限合伙公司 | Multi-sensor montoring of athletic performance |
| CN107271952A (en) * | 2017-06-08 | 2017-10-20 | 无锡卓信信息科技股份有限公司 | The Zigbee localization methods and device of high accuracy height continuation of the journey under low data bulk |
| CN109936835A (en) * | 2019-03-20 | 2019-06-25 | 珠海云航智能技术有限公司 | Ship monitoring method and ship terminal device |
-
2001
- 2001-11-21 CN CN 01132258 patent/CN1420669A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198319B (en) * | 2004-12-17 | 2017-05-03 | 耐克创新有限合伙公司 | Multi-sensor montoring of athletic performance |
| WO2008006288A1 (en) * | 2006-07-05 | 2008-01-17 | Gree Electric Appliances Inc. Of Zhuhai | A remote location control method and system, remote control end and controlled end |
| CN1889614B (en) * | 2006-07-05 | 2011-07-27 | 珠海格力电器股份有限公司 | Air conditioning system with long-distance positioning function and controller and control method thereof |
| CN105472555A (en) * | 2008-03-07 | 2016-04-06 | 沈玮仑 | Device and method for communication with GPS equipment |
| WO2013016858A1 (en) * | 2011-07-29 | 2013-02-07 | 长沙中联重工科技发展股份有限公司 | Power management method, device and system for remote service terminal and engineering machinery |
| CN107271952A (en) * | 2017-06-08 | 2017-10-20 | 无锡卓信信息科技股份有限公司 | The Zigbee localization methods and device of high accuracy height continuation of the journey under low data bulk |
| CN109936835A (en) * | 2019-03-20 | 2019-06-25 | 珠海云航智能技术有限公司 | Ship monitoring method and ship terminal device |
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