CN202196517U - Intelligent vehicle-mounted terminal based on MuC/OS (operating system)-II - Google Patents
Intelligent vehicle-mounted terminal based on MuC/OS (operating system)-II Download PDFInfo
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- CN202196517U CN202196517U CN2011202942803U CN201120294280U CN202196517U CN 202196517 U CN202196517 U CN 202196517U CN 2011202942803 U CN2011202942803 U CN 2011202942803U CN 201120294280 U CN201120294280 U CN 201120294280U CN 202196517 U CN202196517 U CN 202196517U
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Abstract
The utility model discloses an intelligent vehicle-mounted terminal based on MuC/OS (operating system)-II, which belongs to positioning scheduling terminals and mainly comprises a power circuit module, a microprocessor module, a GPS (global positioning system) module, a GSM (global system for mobile communication)/GPRS (general packet radio service) module, a memorizer module, a CAN (controller area network) bus module, an RS232 interface circuit module, a collision monitoring module, a JTAG (joint test action group) circuit module, a warning module, a voice broadcasting module, a speed monitoring module, a turn light, a brake and a speed signal interface circuit module. The beneficial effects are that the intelligent vehicle-mounted terminal can utilize all modules of a system so as to gather and monitor GPS position information, warning information, vehicle state and other information in real time, and conduct voice broadcasting on scheduling text information of a monitoring center, can gather or control other devices through a CAN bus interface and an RS232 interface, uses the MuC/OS-II as the operating system to meet the requirements on instantaneity and stability, and can upgrade terminal software remotely through GPRS.
Description
Technical field
The utility model relates to a kind of positioning scheduling terminal, specifically is a kind of intelligent vehicle mounted terminal based on μ C/OS-II.Having the GPS location sends and receiving function with the GPRS data; Can be with speed, the warning of vehicle, collide, turn to and some other information such as brake sends to Surveillance center; And can the schedule information of Surveillance center be carried out voice broadcast, be applicable on the multiple vehicles such as bus or family-sized car.
Background technology
Along with constant development of economy, the situation of urban traffic blocking is constantly aggravated, and intelligent transportation system (ITS) at home and abroad develops rapidly as the block up completely new approach of problem of a kind of transport solution.Vehicle-mounted monitoring system is the important component part of ITS; It can be in real time, the operation conditions of exact grasp vehicle, the crowded state of road; In time carry out scheduling to vehicle; Avoid the jams, guarantee that vehicle and road are in healthy duty, its research is had very big economic benefit and social benefit.
The shortcomings and deficiencies of present vehicle-mounted monitoring system are:
(1) present vehicle-mounted monitoring system is generally only gathered the GPS locator data, and image data is more single, and Surveillance center can't fully understand vehicle state information.
(2) present vehicle-mounted monitoring system can't be made clearly judgement to the collision situation of vehicle, if car accident takes place, can't timely information be sent to Surveillance center.
(3) present vehicle-mounted monitoring system does not generally adopt embedded real-time operating system, can't well satisfy the real-time requirement of system.
(4) present vehicle-mounted monitoring system needs the scene of car-mounted terminal to the software upgrading at terminal, expends huge manpower and material resources, and is very inconvenient.
(5) present vehicle-mounted monitoring system is in the blind area of GPS, position that can't positioned vehicle.
(6) present vehicle-mounted monitoring system is not realized voice broadcast to the schedule information of Surveillance center.
Summary of the invention
The utility model provides a kind of intelligent vehicle mounted terminal based on μ C/OS-II, and the car status information of collection that solves present vehicle-mounted monitoring system terminal is single, can't judge accurately whether vehicle has car accident to take place, real-time is poor, can't carry out remote upgrade, the scheduling information speech is reported function and the GPS blind area can't be to the defective of vehicle location.It can be used on the various vehicles such as comprising public transport, taxi, family saloon and special trade.
The utility model solves the technical scheme that its technical matters adopted: a kind of intelligent vehicle mounted terminal based on μ C/OS-II, and it comprises power circuit module, micro controller module, GPS module, GSM/GPRS module, memory module, CAN EBI, RS232 interface circuit, collision monitoring module, jtag circuit module, alarm module, voice broadcast module and steering indicating light, brake and rate signal interface module; Use μ C/OS-II operating system, support remote upgrade, described microcontroller connects the GPS module through one group of serial ports; Connect the GSM/GPRS module through one group of serial ports, connect the voice broadcast module, connect the FLASH memory module through one group of SPI mouth through one group of serial ports; RS232 interface through one group of serial ports expansion standard; Through I/O mouth expansion steering indicating light, brake, rate signal interface circuit and alarm module, through CAN bus expansion interface expansion CAN EBI, through one group of I2C interface expansion collision monitoring modular; Expand the jtag circuit module through the JTAG of microcontroller pin, the RS232 interface circuit can be expanded peripheral RS232 interfacing equipment.
Owing to taked technique scheme; Can realize obtaining current vehicle position, warning, collision, speed, turn to and brake information; The information that to obtain and handle with GPRS sends to Surveillance center; Make Surveillance center obtain the status information of current vehicle in real time, and can monitor and dispatch vehicle.Surveillance center can carry out remote upgrade to terminal system.Terminal system can be carried out voice call.The RS232 interface of standard and CAN EBI can be gathered the signal of other equipment or control other equipment.Vehicle also can calculate the positional information of vehicle according to the 3-axis acceleration sensor in the collision monitoring module in the blind area of gps signal.Can Surveillance center's literal schedule information be carried out voice broadcast.
The beneficial effect of the utility model is; This terminal can adapt to the wide voltage input of vehicle, and the car status information of collection that has overcome present vehicle-mounted monitoring system terminal is single, can't judge accurately whether vehicle has car accident to take place, real-time is poor, can't carry out remote upgrade, the literal schedule information of Surveillance center not being carried out the function and the GPS blind area of voice broadcast can't be to shortcomings and deficiencies such as vehicle locations; Can utilize each module of system; Information such as the GPS positional information of real-time collection and monitor vehicle, warning message, vehicle-state; Word message is dispatched by Surveillance center carry out voice broadcast; Perhaps control other equipment through CAN EBI and the collection of RS232 interface, use μ C/OS-II to satisfy real-time and stability requirement, and can upgrade to terminal software through GPRS is long-range as operating system.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model electricity theory diagram;
Fig. 2 is circuit theory diagrams.
Among Fig. 2:
U1: embedded microcontroller STM32F103VCT6 is the core of circuit, main collection and the processing that realizes the various signals of system, and control the collaborative work as required of other peripheral modules;
U2:GPS module master chip CRT-G595, this chip is connected with embedded microcontroller U1 through serial ports, realizes sending to embedded microcontroller U1 to the collection of GPS information and through serial ports;
U3:GSM/GPRS module master chip EM310, this chip is connected with embedded microcontroller U1 through serial ports, realizes the transmission and the reception of GPRS data, and realizes voice call function;
U4:FLASH storage chip MX25L3205, this chip is connected with embedded microcontroller U1 through the SPI mouth, realizes the storage of GPS position data or other data;
U5:RS232 interface circuit master chip MAX3232, this chip is connected with embedded microcontroller U1 through serial ports, is the RS232 level of standard with the TTL serial ports level conversion of microcontroller U1, can be used for expanding other RS232 interfacing equipments;
U6:CAN bus controller chip SN65HVD230, this chip links to each other with CAN bus pin on the embedded microcontroller U1, is used for expanding the CAN EBI;
U7: collision monitoring module master chip MMA7660FC, this chip links to each other with embedded microcontroller U1 through the I2C EBI, is used for the collision situation of monitor vehicle, and can the realization vehicle location in the gps signal blind area;
U8: the chip LM2596 of power circuit is used for producing stable 5V voltage;
U9: voice broadcast module master chip XFS3031CN, this chip is connected with embedded microcontroller U1 through serial ports, realizes the literal schedule information of Surveillance center is carried out voice broadcast.
Embodiment
Further specify below in conjunction with the instance of accompanying drawing the utility model:
As shown in Figure 1, the utility model mainly contains STM32 micro controller module, power circuit module, GPS module, GSM/GPRS module, FLASH memory module, CAN bus interface module, RS232 interface module, jtag circuit module, collision monitoring module, alarm module, voice broadcast module and steering indicating light, brake and rate signal interface module and forms.Use embedded real-time operating system μ C/OS-II, the acceleration transducer in the collision monitoring module capable of using is realized location, GPS blind area, but remote upgrade terminal software system can carry out voice broadcast with the literal schedule information of Surveillance center.Described microcontroller adopts the STM32 embedded microcontroller.
Shown in Fig. 2 circuit theory diagrams: embedded microcontroller U1 adopts the STM32F103VCT6 of ST Microelectronics; GPS module master chip U2 adopts the CRT-G595 of JRC company; GSM/GPRS module master chip U3 adopts the EM310 of Huawei; FLASH memory module master chip U4 adopts the MX25L3205 chip of MACRONIX company; RS232 interface circuit master chip U5 adopts the MAX3232 of U.S. letter MAXIM company, and CAN bus interface module chip U6 adopts the CAN bus controller SN65HVD230 of Texas Instrument, and collision monitoring module master chip U7 adopts the acceleration sensor chip MMA7660FC of Freescale; Power module master chip U8 adopts the semi-conductive LM2596 of American National, and voice broadcast module master chip U9 adopts the Hefei news to fly digital Chinese speech synthesis chip XFS3031CN.
Embedded microcontroller U1 sits and is the core of circuit; Main collection and the processing that realizes the various signals of system; And control the collaborative work as required of other peripheral modules; Its required voltage is 3.3V, and cpu frequency can reach 72MHz, and is built-in up to the flash memory of 256K byte and the SRAM of 48K byte; Also comprise 3 12 ADC, 4 general 16 bit timing devices and 2 PWM timers in addition, also comprise standard and advanced communication interface: reach 2 I2C interfaces, 3 SPI interfaces, 2 I2S interfaces, 1 SDIO interface, 5 USART interfaces, a USB interface and a CAN interface.Native system selects for use this chip as the main control chip, on the one hand because abundant I/O mouth and the peripheral configuration of this chip can well satisfy requirement of system design; On the other hand, the frequency of operation of the 72MHz of this chip can better requirement of real time; In addition, the cost performance of this chip is very high, and especially to compare superiority of effectiveness obvious with high-end single-chip microcomputer.
The master chip U2 of GPS module is connected with microcontroller U1 through a kind of serial ports, realizes sending to microcontroller U1 to the collection of GPS information and through serial ports.It is strong that this chip has a station-keeping ability, and bearing accuracy is high, and volume is little, and antidetonation is swung advantages such as ability is strong, low in energy consumption, and cost performance is high, and interface is simple, can satisfy the requirement of this onboard system fully.
GSM/GPRS module master chip U3 is connected with microcontroller U1 through one group of serial ports, realizes the transmission and the reception of GPRS data, and realizes voice call function.The EM310 module is the double frequency module of an EGSM900/GSM1800MHz, compatible GSM/GPRS Phase2/2+ agreement, and when EGSM900/GT800 Class4, power is 2W, is 1W during GSM1800 Class1; Support class10, maximum downstream rate: 85.6Kbit/s, maximum upstream rate: 42.8Kbit/s; Through the AT instruction control, maximum serial ports baud rate can reach 11520Obits/s; Supply voltage scope 3.4V ~ 4.7V (recommending 3.8V); Working temperature :-30 ° of C ~+75 ° C; Embedded ICP/IP protocol.These characteristics are suitable as the transmission of GPRS data, the receiver module of car-mounted terminal very much, and can realize voice call and short message service.
FLASH storer master chip U4 is connected with microcontroller U1 through one group of SPI mouth, realizes the storage of GPS position data or other data.MX25L3205 is the serial NOR Flash of a 32Mb, has 1024 sectors, 64 pieces in MX25L3205 inside; WV is at 2.7 ~ 3.6V; Use the SPI interface to come access data; Support the page mode programming of 256 bytes and programming mode continuously, can be from the arbitrary address read data, can sector erasing, piece wipes, full sheet is wiped; Have optional block protection function and hardware protection function; Can get into power-down mode to reduce the power consumption of chip.These characteristics of MX25L3205 are suitable as the FLASH storer of car-mounted terminal very much.
RS232 interface circuit master chip U5 is connected with microcontroller U1 through one group of serial ports, is the RS232 level of standard with the TTL serial ports level conversion of microcontroller U1, can be used for expanding other RS232 interfacing equipments.The MAX3232 transceiver adopts proprietary low pressure differential transmitter output stage; Utilize dual charge pump when 3.0V to 5.5V power supply is supplied power, can realize real RS-232 performance; Device only needs the outside small size charge pump electric capacity of four 0.1 μ F; MAX3232 guarantees under the 120kbps data rate, to keep the RS-232 output level, has No. 2 receivers and 2 road drivers.
CAN bus controller chip U6 adopts the CAN bus controller SN65HVD230 of Texas Instrument; , this chip links to each other with CAN bus pin on the embedded microcontroller U1, is used for expanding the CAN EBI;
Collision monitoring module master chip U7 adopts the acceleration sensor chip MMA7660FC of Freescale.
Steering indicating light, brake, speed and alerting signal interface are connected with microcontroller U1 through universaling I/O port, realize collection and processing to steering indicating light, brake, speed and alerting signal.This part adopt transistor amplifier to sensor acquisition to steering indicating light, brake, speed and quotation signal amplify so that the main control chip can be gathered these signals and Surveillance center is handled and sent to these signals.
The chip U8 of power circuit adopts LM2596, is used for producing stable 5V voltage.
The master chip U9 of voice broadcast module is connected with microcontroller U1 through one group of serial ports, realizes the literal schedule information of Surveillance center is carried out voice broadcast.XFS3031CNP is a single-chip chipspeech, and the synthetic amount of text of single can reach 199 bytes, integrated 7 first auditory tone cues sounds in the chip; 30 first chord music, chip is supported multiple text control mark, the scalable volume, digital pronunciation is set, the quiet time etc. is set; Support the text of GB2312, GBK, BIG5 and four kinds of coded systems of UNICODE, the smooth and easy nature of synthetic voice adopts the LQFP64 encapsulation; Convenient integrated, be fit to the vehicle dispatching terminal and use.
For better with automobile on sensing equipment just be connected control, this onboard system is designed with the CAN bus module.The CAN bus can realize the high reliability serial communication with its higher communication speed, good anti-electromagnetic interference capability, in practical application, has high using value.Native system as the CAN interface module, is U6 with the SN65HVD230 of Texas Instrument in the circuit theory diagrams, is connected with microcontroller U1 through the CAN of microcontroller U1 bus pin, with expansion CAN EBI.
System, is connected with microcontroller U1 through one group of I2 interface as collision monitoring modular master chip U7 with the acceleration sensor MMA7660FC of Freescale, is used for the collision situation of monitor vehicle and the realization vehicle location in the gps signal blind area.
System expands jtag interface through the JTAG of microcontroller U1 pin, in order to download to it.
Locating terminal is through GSM/GPRS module remote upgrade; Use the UC/OS-II embedded OS; Support voice communication; Support is carried out voice broadcast to the literal schedule information of Surveillance center, calculates the positional information of vehicle according to the acceleration transducer MMA7660FC in the crash module in the blind area of GPS, realizes location, GPS blind area.
Claims (6)
1. intelligent vehicle mounted terminal based on μ C/OS-II is characterized in that: it comprises power circuit module, micro controller module, GPS module, GSM/GPRS module, memory module, CAN EBI, RS232 interface circuit, collision monitoring module, jtag circuit module, alarm module, voice broadcast module and steering indicating light, brake and rate signal interface module; Use μ C/OS-II operating system, support remote upgrade, described microcontroller connects the GPS module through one group of serial ports; Connect the GSM/GPRS module through one group of serial ports, connect the voice broadcast module, connect the FLASH memory module through one group of SPI mouth through one group of serial ports; RS232 interface through one group of serial ports expansion standard; Through I/O mouth expansion steering indicating light, brake, rate signal interface circuit and alarm module, through CAN bus expansion interface expansion CAN EBI, through one group of I2C interface expansion collision monitoring modular; Expand the jtag circuit module through the JTAG of microcontroller pin, the RS232 interface circuit can be expanded peripheral RS232 interfacing equipment.
2. the intelligent vehicle mounted terminal based on μ C/OS-II according to claim 1 is characterized in that: described microcontroller adopts the STM32 embedded microcontroller, uses the UC/OS-II embedded OS.
3. the intelligent vehicle mounted terminal based on μ C/OS-II according to claim 1; It is characterized in that: described embedded microcontroller adopts the STM32F103VCT6 of ST Microelectronics; GPS module master chip adopts the CRT-G595 of JRC company; GSM/GPRS module master chip adopts the EM310 of Huawei; FLASH memory module master chip adopts the MX25L3205 chip of MACRONIX company, and RS232 interface circuit master chip adopts the MAX3232 of U.S. letter MAXIM company, and CAN bus interface module chip adopts the CAN bus controller SN65HVD230 of Texas Instrument; Collision monitoring module master chip adopts the acceleration sensor chip MMA7660FC of Freescale, and voice broadcast module master chip adopts the Hefei news to fly digital Chinese speech synthesis chip XFS3031CN.
4. the intelligent vehicle mounted terminal based on μ C/OS-II according to claim 1; It is characterized in that: described positioning scheduling terminal is through GSM/GPRS module remote upgrade; Support voice is communicated by letter, and calculates the positional information of vehicle according to the acceleration transducer MMA7660FC in the crash module in the blind area of GPS.
5. the intelligent vehicle mounted terminal based on μ C/OS-II according to claim 1 is characterized in that: described positioning scheduling terminal realizes location, GPS blind area through the acceleration transducer in the collision monitoring module.
6. the intelligent vehicle mounted terminal based on μ C/OS-II according to claim 1 is characterized in that: described positioning scheduling terminal realizes the voice broadcast to the literal schedule information through the voice broadcast module.
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| CN2011202942803U CN202196517U (en) | 2011-08-15 | 2011-08-15 | Intelligent vehicle-mounted terminal based on MuC/OS (operating system)-II |
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| CN2011202942803U CN202196517U (en) | 2011-08-15 | 2011-08-15 | Intelligent vehicle-mounted terminal based on MuC/OS (operating system)-II |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692984A (en) * | 2013-12-27 | 2014-04-02 | 天泽信息产业股份有限公司 | Electromagnetic compatibility design method for products carried on vehicular system |
| CN106602940A (en) * | 2016-11-25 | 2017-04-26 | 安阳工学院 | Brushless DC motor controller for upper limb rehabilitation robot |
| CN108306803A (en) * | 2018-03-13 | 2018-07-20 | 英睿信息科技(常州)有限公司 | New energy vehicle-mounted monitoring prompts mixer all-in-one machine with low speed |
| CN112085932A (en) * | 2020-09-30 | 2020-12-15 | 江西博能上饶客车有限公司 | Vehicle-mounted terminal acousto-optic prompt system and method |
| CN112148321A (en) * | 2019-06-26 | 2020-12-29 | 深圳市航顺芯片技术研发有限公司 | Anti-interference upgrading system and method for automobile intelligent electronic equipment microcontroller |
-
2011
- 2011-08-15 CN CN2011202942803U patent/CN202196517U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692984A (en) * | 2013-12-27 | 2014-04-02 | 天泽信息产业股份有限公司 | Electromagnetic compatibility design method for products carried on vehicular system |
| CN106602940A (en) * | 2016-11-25 | 2017-04-26 | 安阳工学院 | Brushless DC motor controller for upper limb rehabilitation robot |
| CN108306803A (en) * | 2018-03-13 | 2018-07-20 | 英睿信息科技(常州)有限公司 | New energy vehicle-mounted monitoring prompts mixer all-in-one machine with low speed |
| CN112148321A (en) * | 2019-06-26 | 2020-12-29 | 深圳市航顺芯片技术研发有限公司 | Anti-interference upgrading system and method for automobile intelligent electronic equipment microcontroller |
| CN112148321B (en) * | 2019-06-26 | 2023-02-28 | 深圳市航顺芯片技术研发有限公司 | Anti-interference upgrading system and method for automobile intelligent electronic equipment microcontroller |
| CN112085932A (en) * | 2020-09-30 | 2020-12-15 | 江西博能上饶客车有限公司 | Vehicle-mounted terminal acousto-optic prompt system and method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120815 |