CN203881951U - Beidou short message vehicle positioning instrument - Google Patents
Beidou short message vehicle positioning instrument Download PDFInfo
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- CN203881951U CN203881951U CN201420298852.9U CN201420298852U CN203881951U CN 203881951 U CN203881951 U CN 203881951U CN 201420298852 U CN201420298852 U CN 201420298852U CN 203881951 U CN203881951 U CN 203881951U
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Abstract
The utility model discloses a Beidou short message vehicle positioning instrument, and mainly provides a solution for the problem that a positioning instrument is limited in safety and reliability and cannot meet the actual needs in the prior art. The Beidou short message vehicle positioning instrument comprises an ATMEL AVR single chip microcomputer control circuit, a power management circuit, a satellite positioning circuit, a startup/flameout signal detection circuit, an anti-crash watchdog circuit, a serial port conversion circuit and a short message communication circuit, a satellite receiving antenna, a GSM antenna, a GSM card, and a voltage stabilizing circuit, wherein the power management circuit, the satellite positioning circuit, the startup/flameout signal detection circuit, the anti-crash watchdog circuit, the serial port conversion circuit and the short message communication circuit are connected with the ATMEL AVR single chip microcomputer control circuit, the satellite receiving antenna is connected with the satellite positioning circuit, the GSM antenna and the GSM card are connected with the short message communication circuit, and the voltage stabilizing circuit is connected between a power supply and the power management circuit. By adopting the scheme, the Beidou short message vehicle positioning instrument is safe and reliable, has high expansibility, and has very high practical value and popularization value.
Description
Technical field
The utility model relates to a kind of orientator, specifically, relates to a kind of Big Dipper note vehicle location instrument that is applicable to vehicle.
Background technology
At present, GPS location has been widely used in all trades and professions and daily life, and the Vehicle Positioning Equipment of developing and selling is on the market mainly to adopt GPS of America satnav or GPS+ Big Dipper mixed positioning pattern.Adopt these two kinds of modes to realize remote vehicle when monitoring, need to be located information exchange and cross the connection of internet and be sent to map server, could be for client.This mode confinement its utilization scope, safety and reliability is limited.
Utility model content
The purpose of this utility model is to provide a kind of Big Dipper note vehicle location instrument, mainly solves the orientator safety and reliability existing in prior art limited, problem that can not practical requirement.
To achieve these goals, the technical solution adopted in the utility model is as follows:
Big Dipper note vehicle location instrument, comprise ATMEL AVR single chip machine controlling circuit, the electric power management circuit being connected with ATMEL AVR single-chip microcomputer respectively, satnav circuit, startup/flame-out signal deteching circuit, anti-deadlock watchdog circuit, serial interface switching circuit and SMS communication circuit, the satellite earth antenna being connected with satnav circuit, the GSM antenna being all connected with SMS communication circuit and GSM card, be connected in the mu balanced circuit between power supply and electric power management circuit.
Specifically, described mu balanced circuit comprises 5V mu balanced circuit, 3.3V mu balanced circuit and the 3.6V mu balanced circuit being all connected between power supply and electric power management circuit.
Further, described ATMEL AVR single chip machine controlling circuit comprises ATMEGA64 chip, the memory circuit and the clock circuit that are all connected with ATMEGA64 chip.
Described satnav circuit comprises the UM220 chip being connected with ATMEL AVR single-chip microcomputer, is connected in VCC pin and the capacitor C 1 between ground and the capacitor C 2 of UM220 chip after parallel connection.
Closer, described SMS communication circuit adopts the SIM900A being connected with ATMEL AVR single-chip microcomputer as communication chip.
Specifically, described anti-deadlock watchdog circuit comprises the ATMEGA88 chip being connected with ATMEL AVR single-chip microcomputer, be connected in the PB6 pin of ATMEGA88 chip and the transistor Y1 between PB7 pin, be connected in the PB6 pin of ATMEGA88 chip and the capacitor C 3 between ground, be connected in the PB7 pin of ATMEGA88 chip and the capacitor C 4 between ground, all be connected in RESET pin and the diode D1 between ground and the capacitor C 5 of ATMEGA88 chip, be connected in the RESET pin of ATMEGA88 chip and the resistance R 2 between power supply, one end is connected in the PC0 pin of ATMEGA88 chip, the other end is by the resistance R 1 of light emitting diode D2 ground connection.
In the utility model, described electric power management circuit comprises the single-shot trigger circuit consisting of NE555 and the relay drive circuit consisting of HK4100F being connected with NE555, described single-shot trigger circuit comprises triggering pin T and the diode D3 between resetting pin R and the resistance R 3 that is connected in NE555 after parallel connection, after series connection, be connected in triggering pin T and the capacitor C 6 between resetting pin R and the resistance R 4 of NE555, collector is connected between resistance R 4 and capacitor C 6, grounded emitter, base stage is connected with the triode Q1 of resistance R 11, base stage is connected in the output pin of NE555 by resistance R 6, the triode Q2 that emitter is connected with HK4100F, collector is connected with the collector of triode Q2, the triode Q3 of grounded emitter, after parallel connection, be connected in base stage and the capacitor C between ground 9 and the resistance R 7 of triode Q3, after series connection, be connected in resistance R 8 and diode D5 between the PG4 pin of ATMEGA64 chip and the base stage of triode Q3, after series connection, be connected in resistance R 9 and diode D6 between the PG3 pin of ATMEGA64 chip and the base stage of triode Q3, described resistance R 11 is connected in respectively PF4 pin and the PF3 pin of ATMEGA64 chip by diode D8 and diode D9, the base stage of described triode Q1 is by resistance R 12 ground connection, the VCC pin of described NE555 and HK4100F is all connected with mu balanced circuit.
As preferably, described satellite earth antenna is ceramic active satellite antenna.
Compared with prior art, the utlity model has following beneficial effect:
(1) in the utility model, by the ingehious design to each circuit and framework, broken the traditional approach that carries out data transmission with GPRS connecting Internet, when implementing, carrying out technological means well known in the art carries out simple extension and just can realize short message communication, and based on this orientator, carry out simple extension and just can adopt cryptographic means complicated and changeable to be encrypted transmission, in when application, have simple and convenient, the safe and reliable and effect being convenient to expand, realistic demand, is applicable to large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is system chart of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model satnav circuit.
Fig. 3 is the circuit theory diagrams of the anti-deadlock watchdog circuit of the utility model.
Fig. 4 is the circuit theory diagrams of the utility model electric power management circuit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
The Big Dipper Navsat of the utility model utilization China completes location, when implementing, based on disclosed hardware structure in the utility model, can carry out according to demand certain Function Extension, as locating information is carried out to multi-layer data encryption, then by short message mode, send to server, server receives by supporting short message terminal equipment again, and deciphering, the data of reduction are offered to user's use etc., can realize the object of the transmission vehicle locating information that maintains complete secrecy.The important departments such as army, public security, fire-fighting, government offices, important R&D institution are carried out vehicle management or equip facilities management providing effective solution, there are larger range of application and market outlook, this Function Extension is owing to being proven technique very, those skilled in the art are based on the utility model, use routine techniques means just can realize, thereby at this, more do not speak more bright to its expanded function.
As shown in Fig. 1 ~ 4, the utility model is preferably based on ATMEGA64 single-chip microcomputer, UM220 satnav chip and the chip design of SIM900A gsm communication, when implementing, can utilize public information transmission platform to realize enciphered data directional transmissions.Preferably adopt 12V Power supply in car, and when vehicle ignition self-starting, send starting geographic coordinate, vehicle stop is flame-out sends delay switching-off after parking locating information, and anti-deadlock, the measure such as anti-interference, to improve reliability, confidentiality and the practicality of data.The circuit of realizing of the present utility model comprises:
Be connected in the mu balanced circuit between power supply and electric power management circuit, as: 5V mu balanced circuit, 3.3V mu balanced circuit and 3.6V mu balanced circuit, by different mu balanced circuits being set to meet the voltage requirements of different components, wherein, 5V mu balanced circuit is mainly electric power management circuit working power is provided, and preferably adopts LM2596-5V and peripheral circuit to form switch power voltage-stabilizing circuit; 3.3V mu balanced circuit is mainly satnav circuit and ATMEGA64 single-chip microcomputer provides working power, preferably adopts AS1117-3.3 three-terminal voltage-stabilizing and peripheral circuit to form; 3.6V mu balanced circuit aims at SMS communication circuit supply, preferably adopts SPX29302 and peripheral circuit to form adjustable voltage-stabilized source.Because the mu balanced circuit of the above-mentioned type is proven technique comparatively in this area, thereby more do not speak more bright at this.
ATMEL AVR single chip machine controlling circuit, comprises ATMEGA64 chip, the memory circuit and the clock circuit that are all connected with ATMEGA64 chip, and ATMEGA series monolithic is an outstanding RISC structure single-chip microcomputer in AVR series, has very high cost performance.Circuit maturation, stable performance, reliability are high, superior performance, at electronic applications, are extensively approved.Wherein, ATMEGA series integrates AD, timer, house dog, EE ROM, flash memory, RAM etc., function peripheral circuit very strong, that need is few, be conducive to later stage expansion, in the utility model, preferably on ATMEGA64 chip, configure 32K exterior storage circuit and external clock crystal, complete the communication with satnav circuit and SMS communication circuit.
Satnav circuit is selected and is obtained country's license, the UM220III locating module of being developed by Beijing BDStar Navigation Co., Ltd., this module is the Big Dipper/GPS dual system module of releasing for application such as vehicle monitoring/navigation, handheld device, the time service of telecommunications/electric power, balloon soundings, supports single system location-independent and multisystem combined location.UM220-III is the third generation product of UM220 series module, be in the market size minimum completely production domesticization the Big Dipper/GPS module, integrated level is high, low in energy consumption, be applicable to very much size, power consumption to require high Big Dipper sizable application, this UM220 chip is connected with ATMEL AVR single-chip microcomputer, is connected with capacitor C 1 and capacitor C 2 between its VCC pin and ground.
Satellite earth antenna preferably adopts ceramic active satellite antenna, completes seizure and the reception of satellite-signal.
SMS communication circuit preferably adopts SIM900A, SIM900A module is the high reliability wireless module of a compact dimensions, development requires low-cost, compact size can be met, numerous directions such as vehicle-carried tracking, fleet management, wireless POS, hand-held PDA, intelligent meter data recording and power monitoring can be widely used in.In the utility model, used its SMS transfer function, by core processor, sent the general AT instruction of GB (GSM07.07,07.05 and strengthen AT order), completed reception and the transmission of note, realized and the SMS communication of server.
Anti-deadlock watchdog circuit, mainly by the ATMEGA88 chip being connected with ATMEL AVR single-chip microcomputer, completed, ATMEGA88 is that a utilization is extensive, the processor chips of stable performance, the utility model uses the uninterrupted communication of ATMEGA88 and core processor ATMEGA64, during application, by simple Function Extension, make the two monitoring running status mutually, when certain part breaks down or wherein a side quits work, the opposing party can send instruction of restarting to electric power management circuit, recovers the normal work of each element circuit.This circuit comprises and is connected in the PB6 pin of ATMEGA88 chip and the transistor Y1 between PB7 pin, be connected in the PB6 pin of ATMEGA88 chip and the capacitor C 3 between ground, be connected in the PB7 pin of ATMEGA88 chip and the capacitor C 4 between ground, all be connected in RESET pin and the diode D1 between ground and the capacitor C 5 of ATMEGA88 chip, be connected in the RESET pin of ATMEGA88 chip and the resistance R 2 between power supply, PC0 pin, the other end that one end is connected in ATMEGA88 chip pass through the resistance R 1 of light emitting diode D2 ground connection.
Electric power management circuit mainly comprises that the single-shot trigger circuit forming with NE555 and the relay drive circuit consisting of HK4100F form, for managing the working power with control chip and circuit.After simple functions expansion, can realize following functions: during when vehicle ignition, automatically, for the power supply of system each several part, detect after ignition signal, maintain the power supply state of equipment; When equipment single-chip microcomputer quits work (deadlock) or during certain partial fault, sends instruction by processor, powered-down, time delay certain hour powers up behind interval again, and each element circuit is normally worked; After vehicle is flame-out, Circuit management circuit is still maintaining the power supply state of circuit, and processor detects flameout state, and current locator data is sent, and then just can send instruction to electric power management circuit, powered-down.
Wherein, single-shot trigger circuit comprises triggering pin T and the diode D3 between resetting pin R and the resistance R 3 that is connected in NE555 after parallel connection, after series connection, be connected in triggering pin T and the capacitor C 6 between resetting pin R and the resistance R 4 of NE555, collector is connected between resistance R 4 and capacitor C 6, grounded emitter, base stage is connected with the triode Q1 of resistance R 11, base stage is connected in the output pin of NE555 by resistance R 6, the triode Q2 that emitter is connected with HK4100F, collector is connected with the collector of triode Q2, the triode Q3 of grounded emitter, after parallel connection, be connected in base stage and the capacitor C between ground 9 and the resistance R 7 of triode Q3, after series connection, be connected in resistance R 8 and diode D5 between the PG4 pin of ATMEGA64 chip and the base stage of triode Q3, after series connection, be connected in resistance R 9 and diode D6 between the PG3 pin of ATMEGA64 chip and the base stage of triode Q3, described resistance R 11 is connected in respectively PF4 pin and the PF3 pin of ATMEGA64 chip by diode D8 and diode D9, the base stage of described triode Q1 is by resistance R 12 ground connection, the VCC pin of described NE555 and HK4100F is all connected with mu balanced circuit.
On the basis of foregoing circuit, the present embodiment is also connected with part auxiliary element and line, and for guaranteeing the normal operation of circuit, the use of these auxiliary elements belongs to the circuit application custom of industry universal, does not repeat them here.
Based on the disclosed content of the utility model, during application, carry out simple Function Extension, according to above-described embodiment, just can realize well the utility model.
Claims (8)
1. Big Dipper note vehicle location instrument, it is characterized in that, comprise ATMEL AVR single chip machine controlling circuit, the electric power management circuit being connected with ATMEL AVR single-chip microcomputer respectively, satnav circuit, startup/flame-out signal deteching circuit, anti-deadlock watchdog circuit, serial interface switching circuit and SMS communication circuit, the satellite earth antenna being connected with satnav circuit, the GSM antenna being all connected with SMS communication circuit and GSM card, be connected in the mu balanced circuit between power supply and electric power management circuit.
2. Big Dipper note vehicle location instrument according to claim 1, is characterized in that, described mu balanced circuit comprises 5V mu balanced circuit, 3.3V mu balanced circuit and the 3.6V mu balanced circuit being all connected between power supply and electric power management circuit.
3. Big Dipper note vehicle location instrument according to claim 1, is characterized in that, described ATMEL AVR single chip machine controlling circuit comprises ATMEGA64 chip, the memory circuit and the clock circuit that are all connected with ATMEGA64 chip.
4. Big Dipper note vehicle location instrument according to claim 1, is characterized in that, described satnav circuit comprises the UM220 chip being connected with ATMEL AVR single-chip microcomputer, is connected in VCC pin and the capacitor C 1 between ground and the capacitor C 2 of UM220 chip after parallel connection.
5. Big Dipper note vehicle location instrument according to claim 1, is characterized in that, described SMS communication circuit adopts the SIM900A being connected with ATMEL AVR single-chip microcomputer as communication chip.
6. Big Dipper note vehicle location instrument according to claim 1, it is characterized in that, described anti-deadlock watchdog circuit comprises the ATMEGA88 chip being connected with ATMEL AVR single-chip microcomputer, be connected in the PB6 pin of ATMEGA88 chip and the transistor Y1 between PB7 pin, be connected in the PB6 pin of ATMEGA88 chip and the capacitor C 3 between ground, be connected in the PB7 pin of ATMEGA88 chip and the capacitor C 4 between ground, all be connected in RESET pin and the diode D1 between ground and the capacitor C 5 of ATMEGA88 chip, be connected in the RESET pin of ATMEGA88 chip and the resistance R 2 between power supply, one end is connected in the PC0 pin of ATMEGA88 chip, the other end is by the resistance R 1 of light emitting diode D2 ground connection.
7. Big Dipper note vehicle location instrument according to claim 1, it is characterized in that, described electric power management circuit comprises the single-shot trigger circuit consisting of NE555 and the relay drive circuit consisting of HK4100F being connected with NE555, described single-shot trigger circuit comprises triggering pin T and the diode D3 between resetting pin R and the resistance R 3 that is connected in NE555 after parallel connection, after series connection, be connected in triggering pin T and the capacitor C 6 between resetting pin R and the resistance R 4 of NE555, collector is connected between resistance R 4 and capacitor C 6, grounded emitter, base stage is connected with the triode Q1 of resistance R 11, base stage is connected in the output pin of NE555 by resistance R 6, the triode Q2 that emitter is connected with HK4100F, collector is connected with the collector of triode Q2, the triode Q3 of grounded emitter, after parallel connection, be connected in base stage and the capacitor C between ground 9 and the resistance R 7 of triode Q3, after series connection, be connected in resistance R 8 and diode D5 between the PG4 pin of ATMEGA64 chip and the base stage of triode Q3, after series connection, be connected in resistance R 9 and diode D6 between the PG3 pin of ATMEGA64 chip and the base stage of triode Q3, described resistance R 11 is connected in respectively PF4 pin and the PF3 pin of ATMEGA64 chip by diode D8 and diode D9, the base stage of described triode Q1 is by resistance R 12 ground connection, the VCC pin of described NE555 and HK4100F is all connected with mu balanced circuit.
8. Big Dipper note vehicle location instrument according to claim 1, is characterized in that, described satellite earth antenna is ceramic active satellite antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298852.9U CN203881951U (en) | 2014-06-06 | 2014-06-06 | Beidou short message vehicle positioning instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298852.9U CN203881951U (en) | 2014-06-06 | 2014-06-06 | Beidou short message vehicle positioning instrument |
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| Publication Number | Publication Date |
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| CN203881951U true CN203881951U (en) | 2014-10-15 |
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| CN201420298852.9U Expired - Fee Related CN203881951U (en) | 2014-06-06 | 2014-06-06 | Beidou short message vehicle positioning instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894599A (en) * | 2017-11-29 | 2018-04-10 | 航天恒星空间技术应用有限公司 | A kind of timing locating short message alignment system |
-
2014
- 2014-06-06 CN CN201420298852.9U patent/CN203881951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894599A (en) * | 2017-11-29 | 2018-04-10 | 航天恒星空间技术应用有限公司 | A kind of timing locating short message alignment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG CHENGQIANG Free format text: FORMER OWNER: CHENGDU POLAR TECHNOLOGIES LTD. Effective date: 20150805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150805 Address after: 610000 No. 10, No. 18, building 136, section 5, Hongxing Road, Qingyang District, Sichuan, Chengdu Patentee after: Wang Chengqiang Address before: 1 building 11, 134 Xiaojiahe street, 610000 hi tech Zone, Sichuan, Chengdu Patentee before: Chengdu Polar Technologies Limited |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20190606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |