CN202904572U - Communication system for global position system (GPS) electronic equipment - Google Patents
Communication system for global position system (GPS) electronic equipment Download PDFInfo
- Publication number
- CN202904572U CN202904572U CN 201220611134 CN201220611134U CN202904572U CN 202904572 U CN202904572 U CN 202904572U CN 201220611134 CN201220611134 CN 201220611134 CN 201220611134 U CN201220611134 U CN 201220611134U CN 202904572 U CN202904572 U CN 202904572U
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- gps
- embedded computer
- module
- communication system
- ttl signal
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Abstract
The utility model relates to a communication system for a global position system (GPS) electronic equipment. The communication system for the GPS electronic equipment comprises an embedded computer which is used for controlling the communication system, a PC 104 serial port expansion card which is installed on the embedded computer, a RS 232-TTL signal level conversion module which is connected with the embedded computer and used for achieving a signal level conversion between a RS 232 signal and a TTL signal, a single frequency GPS module and a GPS beacon module which are communicated with the embedded computer through the RS 232-TTL signal level conversion module, and a double frequency GPS module which is used for transmitting a double frequency GPS signal to the embedded computer. The communication system for the GPS electronic equipment is used for converting different protocols and signal levels of various needed modules into a uniform RS 232 signal level and expanding a RS 232 port to the computer. The whole modules are integrated into a full-functioned system by the most compact structure.
Description
Technical field
The utility model relates to the expansion of compunication port, data communication level conversion field, particularly a kind of communication system for the GPS electronic equipment.
Background technology
In comprising the electronic equipment of GPS positioning function, dual-use pocket needs that in-built various GPS localization function module and multiple special measurement EM equipment module are arranged.These modules need and inner, outside computer communication port connects, and also need between the module to be coupled to each other.General computer motherboard does not possess the communication interface of sufficient amount, so must be expanded.And different modules often adopts different communication protocol and logic level, and these agreements and logic level are inconsistent with the communication interface of the standard of computing machine again, so must set up agreement and level conversion circuit between it interconnects.
The utility model content
Technical problem to be solved in the utility model provides a kind of communication system for the GPS electronic equipment, is used for solving the inapplicable problem of prior art Computer mainboard communication interface.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of communication system for the GPS electronic equipment comprises an embedded computer, a PC104 serial ports expansion board, a RS232-TTL signal level modular converter, a single-frequency GPS module, a GPS beacon module and a double-frequency GPS module;
Described embedded computer, it is used for the control communication system;
Described PC104 serial ports expansion board, it is installed on the described embedded computer, is used for expanding the RS232 interface that is connected with the external unit of GPS electronic equipment;
Described RS232-TTL signal level modular converter, it is connected with described embedded computer, for the level conversion between realization RS232 signal and the TTL signal, the TTL signal is transferred to described single-frequency GPS module and described GPS beacon module, the RS232 signal is transferred to described embedded computer;
Described single-frequency GPS module, it is connected with described RS232-TTL signal level modular converter, is used for transmitting the single-frequency GPS signal by described RS232-TTL signal level modular converter to described embedded computer, and receives the instruction of described embedded computer;
Described GPS beacon module, it is connected with described RS232-TTL signal level modular converter, is used for by described RS232-TTL signal level modular converter to described embedded computer transmit GPS beacon signal, and receives the instruction of described embedded computer;
Described double-frequency GPS module, it is connected with described embedded computer, is used for receiving the instruction of described embedded computer, and to described embedded computer transmission double-frequency GPS signal.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described RS 232-TTL signal level modular converter realize RS232 signal and TTL signal between level conversion realize by integrated circuit component MAX237.
Further, included single-frequency GPS module, RS232-TTL signal level modular converter, GPS beacon module and the double-frequency GPS module of described communication system all is welded on the same printed wiring board, and realize the information transmission of each intermodule by track, also realize communicating by letter of each module and external unit by track.
The beneficial effects of the utility model are: agreement and signal level that the utility model is different with needed various modules are converted to unified RS232 signal level, expand the RS232 interface to computing machine, and each equipment is connected intercommunication with them, take compact structure the communication system of all module integrations as a telotism, neat appearance, reliable and stable, and can also expand the connection miscellaneous equipment.
Description of drawings
Fig. 1 is the structural representation of communication system described in the utility model.
In the accompanying drawing, the list of parts of each label representative is as follows:
1, embedded computer, 2, PC104 serial ports expansion board, 3, the RS232-TLL level translator, 4, single-frequency GPS module, 5, the GPS beacon module, 6, the double-frequency GPS module, 7, communication system, 8, nautical receiving set, 9, touch-screen, 10, video divides aobvious device, 11, sea gravimeter, 12, single beam sounder, 13, marine magnetometer, 14, electronic compass.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
As shown in Figure 1, a kind of communication system for the GPS electronic equipment of present embodiment comprises an embedded computer 1, a PC104 serial ports expansion board 2, a RS232-TTL signal level modular converter 3, a single-frequency GPS module 4, a GPS beacon module 5 and a double-frequency GPS module 6;
Described embedded computer 1, it is used for control communication system 7;
Described PC104 serial ports expansion board 2, it is installed on the described embedded computer 1, is used for expanding the RS232 interface that is connected with the external unit of GPS electronic equipment;
Described RS232-TTL signal level modular converter 3, it is connected with described embedded computer 1, for the level conversion between realization RS232 signal and the TTL signal, the TTL signal is transferred to described single-frequency GPS module 4 and described GPS beacon module 5, the RS232 signal is transferred to described embedded computer 1;
Described single-frequency GPS module 4, it is connected with described RS232-TTL signal level modular converter 3, be used for transmitting the single-frequency GPS signal by described RS232-TTL signal level modular converter 3 to described embedded computer 1, and receive the instruction of described embedded computer 1;
Described GPS beacon module 5, it is connected with described RS232-TTL signal level modular converter 3, be used for by described RS232-TTL signal level modular converter 3 to described embedded computer 1 transmit GPS beacon signal, and receive the instruction of described embedded computer 1;
Described double-frequency GPS module 6, it is connected with described embedded computer 1, is used for receiving the instruction of described embedded computer 1, and to described embedded computer 1 transmission double-frequency GPS signal.
In the present embodiment, level conversion between described RS232-TTL signal level modular converter 3 realization RS232 signals and the TTL signal realizes by integrated circuit component MAX237, and single-frequency GPS module 4, RS232-TTL signal level modular converter 3, GPS beacon module 5 and double-frequency GPS module 6 all are welded on the same printed wiring board, realize the information transmission of each intermodule by track, also realize communicating by letter of each module and external unit by track.
In addition, described communication system 1 also comprises power module, its external power supply, and be connected 6 with described single-frequency GPS module 4, GPS beacon module 5, double-frequency GPS module, be used for realizing power supply.Can be the 12V voltage transition of input the 5V power supply by monolithic voltage adjusting module LM2576-5, supply with the correlation module that needs the 5V power supply on the printed wiring board.
Embodiment one is one will arrive with the GPS electronic apparatus application of communication system 7 application example of marine field, as shown in Figure 1, this moment, described embedded computer also was connected with nautical receiving set 8 and touch-screen 9 by USB interface, was connected with video by VGA and divided aobvious device 10.And the RS232 interface that the external unit with the GPS electronic equipment that described PC104 serial ports expansion board expands is connected can comprise: for the interface that is connected sea gravimeter 11, for the interface that connects single beam sounder 12, for the interface that connects marine magnetometer 13, for the interface of connecting electronic compass 14, can also further expand the interface that is connected with other external equipment.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. communication system that is used for the GPS electronic equipment, it is characterized in that, comprise an embedded computer, a PC104 serial ports expansion board, a RS232-TTL signal level modular converter, a single-frequency GPS module, a GPS beacon module and a double-frequency GPS module;
Described embedded computer, it is used for the control communication system;
Described PC104 serial ports expansion board, it is installed on the described embedded computer, is used for expanding the RS232 interface that is connected with the external unit of GPS electronic equipment;
Described RS232-TTL signal level modular converter, it is connected with described embedded computer, for the level conversion between realization RS232 signal and the TTL signal, the TTL signal is transferred to described single-frequency GPS module and described GPS beacon module, the RS232 signal is transferred to described embedded computer;
Described single-frequency GPS module, it is connected with described RS232-TTL signal level modular converter, is used for transmitting the single-frequency GPS signal by described RS232-TTL signal level modular converter to described embedded computer, and receives the instruction of described embedded computer;
Described GPS beacon module, it is connected with described RS232-TTL signal level modular converter, is used for by described RS232-TTL signal level modular converter to described embedded computer transmit GPS beacon signal, and receives the instruction of described embedded computer;
Described double-frequency GPS module, it is connected with described embedded computer, is used for receiving the instruction of described embedded computer, and to described embedded computer transmission double-frequency GPS signal.
2. communication system according to claim 1 is characterized in that, the level conversion between described RS232-TTL signal level modular converter realization RS232 signal and the TTL signal realizes by integrated circuit component MAX237.
3. communication system according to claim 1, it is characterized in that, the included single-frequency GPS module of described communication system, RS232-TTL signal level modular converter, GPS beacon module and double-frequency GPS module all are welded on the same printed wiring board, and realize the information transmission of each intermodule by track, also realize communicating by letter of each module and external unit by track.
4. communication system according to claim 1 is characterized in that, described communication system also comprises power module, its external power supply, and be connected with described single-frequency GPS module, GPS beacon module, double-frequency GPS module, be used for realizing power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611134 CN202904572U (en) | 2012-11-16 | 2012-11-16 | Communication system for global position system (GPS) electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611134 CN202904572U (en) | 2012-11-16 | 2012-11-16 | Communication system for global position system (GPS) electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202904572U true CN202904572U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611134 Expired - Fee Related CN202904572U (en) | 2012-11-16 | 2012-11-16 | Communication system for global position system (GPS) electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202904572U (en) |
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2012
- 2012-11-16 CN CN 201220611134 patent/CN202904572U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141116 |
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| EXPY | Termination of patent right or utility model |