CN203217077U - Beidou satellite and GPS satellite-based engineering vehicle navigation and remote terminal - Google Patents
Beidou satellite and GPS satellite-based engineering vehicle navigation and remote terminal Download PDFInfo
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- CN203217077U CN203217077U CN 201320202487 CN201320202487U CN203217077U CN 203217077 U CN203217077 U CN 203217077U CN 201320202487 CN201320202487 CN 201320202487 CN 201320202487 U CN201320202487 U CN 201320202487U CN 203217077 U CN203217077 U CN 203217077U
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Abstract
The utility model provides a Beidou satellite and GPS satellite-based engineering vehicle navigation and remote terminal comprising an STM32 processor, an internal storage, a CAN bus interface, an STM32 processor crystal oscillator, an STM32 processor reset part, and a Beidou and GPS base-band chip, wherein the internal storage, the CAN bus interface, the STM32 processor crystal oscillator, and the STM32 processor reset part are respectively connected with the STM32 processor; the Beidou and GPS base-band chip is connected with the STM32 processor through a connector. By using the STM32 processor and the Beidou and GPS base-band chip, a positioning function and a communication function can be fulfilled, and support from other communication systems is not needed. Moreover, the Beidou satellite and GPS satellite-based engineering vehicle navigation and remote terminal can work in a non-stop manner through connection with a power source. By additionally using some peripheral circuits, an engineering machinery vehicle can be effectively served on site. The system is characterized by strong real-time property, high safety, high response speed and small power consumption.
Description
Technical field
The utility model relates to communication technique field, particularly relates to a kind of engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite.
Background technology
Since on October 25th, 2012, the 16th Big Dipper Navsat of China succeeds in sending up lift-off, and Beidou satellite navigation system is GPS (GPS) continue the U.S. and the satellite navigation system of the 3rd maturation after Muscovite GLONASS (GLONASS) system.It is regional active three-dimensional satnav and the communication system (CNSS) that China develops voluntarily.Now, Beidou satellite navigation system can satisfy industries such as traffic scheduling, engineering mapping, astronomical meteorology and information communication fully.
Current, comparatively burning hot for the research of the Big Dipper two generations system's navigating instrument.In general present navigational system all is based on digital processing signal (DSP) or field programmable gate array (FPGA) is the GPS navigation system of hardware platform, more use is also arranged based on the GPS navigation system of arm processor.
In existing navigational system, can't possess location and the function of communicating by letter simultaneously, and have many communication blind districts to cause signal deletion, normally operate as normal.
The utility model content
The purpose of this utility model is to provide engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite, to solve in the existing navigational system, can't possess location and the function of communicating by letter simultaneously, and have many communication blind districts to cause signal deletion, normally the operate as normal problem.
For solving the problems of the technologies described above, the utility model provides
Engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite comprise:
The STM32 processor;
The internal memory that is connected with described STM32 processor, CAN bus interface, STM32 processor crystal oscillator, STM32 processor reset respectively;
The Big Dipper and the GPS baseband chip that are connected with described STM32 processor by a connector.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: the Ethernet interface that is connected with described STM32 processor by described connector.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: the LCD interface that is connected with described STM32 processor by described connector.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: the USB interface that is connected with described STM32 processor by described connector.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: the UART interface that is connected with described STM32 processor by described connector.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: the SD-CARD interface that is connected with described STM32 processor.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: the power supply that is connected with described STM32 processor.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, described CAN bus interface is connected with an outside vehicle-mounted data line.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, the described Big Dipper is connected with an A/D converter with the GPS baseband chip.
Further, in described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, described A/D converter is connected with a radio-frequency front-end.
Engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite that the utility model provides, has following beneficial effect: by using STM32 processor and the Big Dipper and GPS baseband chip, can possess location and the function of communicating by letter simultaneously, need not other communication system supports.In addition, connect a power supply, can realize non-stop run.Add some peripheral circuits, can serve at the scene for engineering machinery vehicle effectively.Native system is real-time, safe, response speed is fast and power consumption is little.
Description of drawings
Fig. 1 is the structural representation based on the navigation of the engineering truck of big-dipper satellite and gps satellite and remote terminal of the utility model embodiment 1;
Fig. 2 is the principle schematic based on the A/D converter of the navigation of the engineering truck of big-dipper satellite and gps satellite and remote terminal of the utility model embodiment 1;
Fig. 3 is the structural representation based on the power module of the navigation of the engineering truck of big-dipper satellite and gps satellite and remote terminal of the utility model embodiment 1;
Fig. 4 is the structural representation based on the CAN bus interface of the navigation of the engineering truck of big-dipper satellite and gps satellite and remote terminal of the utility model embodiment 1.
Embodiment
Below in conjunction with the drawings and specific embodiments engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite that the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of aid illustration the utility model embodiment lucidly.
STM32 processor characteristics have: volume is little, low-power consumption, low cost, high-performance, supports 16/32 two instruction set simultaneously, can well compatible 8/16 devices, can use register in a large number, instruction execution speed is very fast, and addressing is simple, carries out the efficient height.The STM32 processor is very extensive on using, and it has powerful system management function, also quite stable in programmed control.For these reasons, the utility model has designed engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite.
As shown in Figure 1, engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite comprises:
The internal memory 102 that is connected with described STM32 processor 101, CAN bus interface 103, STM32 processor crystal oscillator 104, STM32 processor reset (startup) 105 respectively; Wherein,
Described internal memory RAM102 is used for the storage data;
Described CAN bus interface 103 is used for intercoming mutually with external unit;
Described STM32 processor crystal oscillator 104 is used for sending time clock;
Described STM32 processor reset (startup) 105 is used for described STM32 processor is resetted;
The Big Dipper and the GPS baseband chip 107 that are connected with described STM32 processor 101 by a connector 106.
By using STM32 processor and the Big Dipper and GPS baseband chip, can possess location and the function of communicating by letter simultaneously, need not other communication system supports.
Further, described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite also comprise: be connected 101 Ethernet interface 108 by described connector 106 with described STM32 processor.
Further, described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: by the LCD interface 109 that described connector 106 is connected with described STM32 processor 101, described LCD interface 109 can connect touch-screen.
Further, described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: be connected 101 usb 1 10 by described connector 106 with described STM32 processor, described usb 1 10 can carry out data communication.
Further, described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: by the UART interface 111 that described connector 106 is connected with described STM32 processor 101, described UART interface 111 can carry out exchanges data.
Further, described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: with the SD-CARD interface 112 that described STM32 processor 101 is connected, described SD-CARD interface 112 can carry out two-shipper or multi computer communication.
Further, described described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite also comprise: the power supply 113 that is connected with described STM32 processor 101.
As shown in Figure 3, the utility model one has 3 types level :+5V ,+3.3V ,+1.2V.Owing to be engineering truck, engineering truck can provide the voltage of 12V.Consider the requirement of electric current again, adopt the DC-DC module to realize voltage transitions and the distribution of 12V to 5V.Select the LM7805DC module to realize the voltage transitions of 12V to 5V, and carry out voltage distribution.Select the B0503DC module to realize the voltage transitions of 5V to 3.3V again, and carry out voltage distribution.At last by using the LM3965DC module to realize the voltage transitions of 3.3V to 1.2V.Wherein+voltage of 5V offers the Big Dipper and chips such as GPS baseband chip 107 and communication module.+ 3.3V voltage offers storer and the exterior I/O mouth of MAX3232 chip, STM32.+ 1.2V voltage offers the kernel powered operation of STM32, and the power consumption of whole hardware is little, and good energy-conserving effect meets target and the theory of national sustainable development.
Further, in the described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, described CAN bus interface 103 is connected with an outside vehicle-mounted data line.
Further, in the described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, the described Big Dipper is connected with an A/D converter with GPS baseband chip 107.
As shown in Figure 2, A/D converter is used for receiving the measured simulating signal of polytype sensor, and these analog signal conversion are become digital signal, gives the STM32 processor by SPI oral instructions and calculates.Mainly pressure detection data, the hardware temperatures for hydraulic press detects data, oil circuit detects data and node voltage detection data etc. and changes and calculate.A/D conversion figure place is the fine degree of A/D converter after to the input analog signal figureization.The A/D converter that the utility model adopts is AD7927, and it is the A/D conversion chip of 12 successive approximations of 8 passages, can realize the figure place expansion by it, and its precision is higher relatively.
Further, in the described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, described A/D converter is connected with a radio-frequency front-end 114.
The Big Dipper and GPS baseband chip 107 mainly by STM32 processor 101 as processor, STM32 processor 101 applied to handles and the navigation calculation part.Radio-frequency front-end 114 receives the radiofrequency signal of satellites, and the Big Dipper and GPS baseband chip 107 have a kind of superpower signal sensitivity, outstanding many after prime amplifier amplifies, and signal is down-converted to intermediate-freuqncy signal; A/D converter has inhibition ability and anti-interference/anti-deception ability, supports multifrequency point, multiple upgrading sampling intermediate-freuqncy signal, and simulating signal is quantified as digital signal; From the Big Dipper and GPS baseband chip 107 to the signal processing major function be: the two dimension of satellite-signal is caught, the tracking of carrier phase and code phase, and calculates pseudorange; Last navigation calculation partly adopts certain algorithm to eliminate model error, finds the solution the pseudorange equation, parses the geographic position of satellite antenna, thereby realizes satnav.
Further, in the described engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite, also comprise: with the test interface 115 that described STM32 processor 101 is connected, described test interface 115, be used for test STM32 processor 101.
As shown in Figure 4, in this use is novel, use the CAN bus interface.It supports distributed control and the serial communication network of controlling in real time effectively.Its superiority is: 1, each data between nodes real-time communication of network is strong; 2, shortened the construction cycle; 3, be the fieldbus of international standard, realized the markization of serial ports.Compare with general communication bus, the data communication of CAN bus has outstanding reliability, real-time and dirigibility.Because its good performance and unique design, the CAN bus more and more is subject to people's attention.Its application on vehicular field is the most widely, has also obtained extensive utilization certainly on the complex engineering motor vehicles and machines.In project, used three CAN bus structure altogether, be divided at a high speed, three types of middling speed and low speed.In the information exchange of three kinds of buses, because their host-host protocol difference has used gateway to carry out information exchange.
Foregoing description only is the description to the utility model preferred embodiment; it is not any restriction to the utility model scope; any change, modification that the those of ordinary skill in the utility model field is done according to above-mentioned disclosure all belong to the protection domain of claims.
Claims (10)
1. based on engineering truck navigation and the remote terminal of big-dipper satellite and gps satellite, it is characterized in that, comprising:
The STM32 processor;
The internal memory that is connected with described STM32 processor, CAN bus interface, STM32 processor crystal oscillator, STM32 processor reset respectively;
The Big Dipper and the GPS baseband chip that are connected with described STM32 processor by a connector.
2. engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that, also comprises: the Ethernet interface that is connected with described STM32 processor by described connector.
3. engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that, also comprises: the LCD interface that is connected with described STM32 processor by described connector.
4. engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that, also comprises: the USB interface that is connected with described STM32 processor by described connector.
5. engineering truck navigation and the remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that, also comprises: the UART interface that is connected with described STM32 processor by described connector.
6. engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that, also comprise: the SD-CARD interface that is connected with described STM32 processor.
7. engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that, also comprise: the power supply that is connected with described STM32 processor.
8. engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that described CAN bus interface is connected with an outside vehicle-mounted data line.
9. engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite according to claim 1 is characterized in that the described Big Dipper is connected with an A/D converter with the GPS baseband chip.
10. engineering truck navigation and remote terminal based on big-dipper satellite and gps satellite according to claim 9 is characterized in that described A/D converter is connected with a radio-frequency front-end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320202487 CN203217077U (en) | 2013-04-18 | 2013-04-18 | Beidou satellite and GPS satellite-based engineering vehicle navigation and remote terminal |
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| CN 201320202487 CN203217077U (en) | 2013-04-18 | 2013-04-18 | Beidou satellite and GPS satellite-based engineering vehicle navigation and remote terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314392A (en) * | 2014-10-31 | 2015-01-28 | 陕西强星信息科技有限公司 | Beidou positioning based electric shackle |
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2013
- 2013-04-18 CN CN 201320202487 patent/CN203217077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314392A (en) * | 2014-10-31 | 2015-01-28 | 陕西强星信息科技有限公司 | Beidou positioning based electric shackle |
| CN104314392B (en) * | 2014-10-31 | 2016-08-31 | 陕西强星信息科技有限公司 | A kind of electronic foot handcuff based on Big Dipper location |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160418 |