CN202077185U - Two-way interactive emergency communication terminal based on Beidou satellite - Google Patents
Two-way interactive emergency communication terminal based on Beidou satellite Download PDFInfo
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- CN202077185U CN202077185U CN2011201699903U CN201120169990U CN202077185U CN 202077185 U CN202077185 U CN 202077185U CN 2011201699903 U CN2011201699903 U CN 2011201699903U CN 201120169990 U CN201120169990 U CN 201120169990U CN 202077185 U CN202077185 U CN 202077185U
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Abstract
The utility model relates to the field of instruments and meters, is suitable for emergency communication and particularly relates to a two-way interactive emergency communication terminal based on a Beidou satellite. The communication technical scheme is that a universal serial bus (USB) interface is connected with a smart terminal such as a smart mobile phone, a tablet personal computer or the like to use the smart terminal so as to complete man-machine interaction. A Beidou communication task can be completed through the terminal by using keys. The utility model additionally discloses an input/output (IO) share method which is related to the power supply design of the portable terminal and aims at reducing the number of used single-chip microcomputer pins. When the portable Beidou terminal realized by adopting the method is combined with customized application software on the smart terminal in a special Beidou information service center, the need of emergency communication application under an environment without communication network signals can be effectively met.
Description
Technical field
The utility model relates to instrument and instrument field, is applied to emergency communication, be specifically related to a kind of based on
The two-way mutual emergency communication terminal of big-dipper satellite.
Background technology
Emergency communication is significant at the numerous areas of producing and live, the means of communication of current most employing GSM or 3G, but because different communication standards is because the covering of communication base station, the blind area or the weak district that have signal make to have bigger uncertainty when emergent the application, and are mainly used in call function, can't realize the location by signal, or promptly enable the location, and bigger to the dependence of base station, the application scenario that still is difficult to suitable emergency communication (as outdoor exercises).
The utility model content
The purpose of this utility model is to provide a kind of two-way mutual emergency communication terminal based on big-dipper satellite, can satisfy field or other field calling for help and location in emergency circumstances, and can be whole with intelligence
End is used in combination.
In order to realize above-mentioned task, the utility model is taked following technical solution: a kind of two-way mutual emergency communication terminal based on big-dipper satellite, comprise single chip control module, power management module, it is characterized in that: be connected with IO on the described single chip control module and share control circuit, Big Dipper transmission/receiver module and buzzer, described IO shares on the control circuit and is connected with USB circuit module, LED lamp and button, be connected with antenna on the described Big Dipper transmission/receiver module, be connected with lithium battery on the described power management module.
Described IO shares control circuit and is connected with single chip control module with single-chip microcomputer 74HC573 by single-chip microcomputer FT245.
The CPU of described single chip control module is MSP430.
Described LED lamp is provided with 4, is respectively LED1, LED2, LED3 and LED4.
Described button is provided with 2, is respectively KEY1 and KEY2.
Described buzzer is the active electromagnetic type buzzer of TMB12A05.
Advantage of the present utility model and effect thereof: the utility model provides a kind of two-way mutual emergency communication terminal based on big-dipper satellite, its maximum is characterized as and being used in combination of existing intelligent terminal (as mobile phone etc.), realize emergency communication down briefly or the information transmission of complex interaction.
Description of drawings
Fig. 1 is a circuit structure block diagram of the present utility model;
Fig. 2 is the type selecting of Fig. 1 power management chip of the present utility model;
Fig. 3 is a lithium battery voltage testing circuit;
Fig. 4 uses the mutual circuit of serial ports with Big Dipper transmit/receive module;
Fig. 5 is the design that is connected of control usefulness single-chip microcomputer with the USB interface chip of Big Dipper terminal;
Fig. 6 is the IO shared design of the control of Big Dipper terminal with single-chip microcomputer.
1-single chip control module, 2-power management module, 3-lithium battery, 4-IO shares control circuit, 5-USB circuit module, 6-LED lamp, 7-button, 8-buzzer, 9-Big Dipper transmission/receiver module, 10-antenna, 11-single-chip microcomputer FT245,12-single-chip microcomputer 74HC573.
Embodiment
A kind of two-way mutual emergency communication terminal based on big-dipper satellite, comprise single chip control module 1, power management module 2, be connected with IO on the described single chip control module 1 and share control circuit 4, Big Dipper transmission/receiver module 9 and buzzer 8, described IO shares on the control circuit 4 and is connected with USB circuit module 5, LED lamp 6 and button 7, described LED lamp 6 is provided with 4, be respectively LED1, LED2, LED3 and LED4, described button 7 is provided with 2, be respectively KEY1 and KEY2, be connected with antenna 10 on the described Big Dipper transmission/receiver module 9, be connected with lithium battery 3 on the described power management module 2, the CPU of described single chip control module 1 is MSP430, described buzzer 8 is the active electromagnetic type buzzer of TMB12A05, and described IO shares control circuit 4 and is connected with single chip control module 1 with single-chip microcomputer 7,4HC,573 12 by single-chip microcomputer FT245 11.
The utility model is described in further detail below in conjunction with accompanying drawing:
The utility model is actual to be a kind ofly to use the portable Big Dipper emergency communication terminal of other intelligent terminals as complicated man-machine interaction (UI:User Iinterface) by USB interface, the structure of this terminal mainly contains electric power management circuit module, single chip machine controlling circuit module, Big Dipper transmission/receiving circuit module formation as shown in Figure 1.
The electric power management circuit module: system uses the mode of operation of low-power consumption, by 1 control of the single chip control module in the portable terminal power management module 2 is controlled, and uses the rechargable battery power supply, and charging inlet is provided.This terminal need about 12V(Big Dipper transmission/receiver module operating voltage range be 11.1～12.6V), three kinds of DC power supply of 5V and 3.3V, for ease of the Big Dipper being launched the demand of required high voltage and big electric current, power supply is selected for use by the accurate lithium battery 3 series connected battery schemes of 3 feast-brand marks, in the VD scope of 11.1V-12.6V, the discharging efficiency of battery is 80%, and other direct current output (5V, 3.3V) voltage obtain the step-down output scheme that adopts DC/DC, the type selecting of circuit structure block diagram as shown in Figure 2 and the power management chip of this terminal.Thereby the control of the power supply of the Big Dipper transmission/receiver module that needs during low power dissipation design is by the power supply of using mcu programming by the switch control Big Dipper transmission/receiver module of control PMOS pipe.
The structure of the single chip machine controlling circuit module of terminal is as shown in Figure 1: by a single-chip microcomputer (MCU, in this Terminal Design realizes, choose MSP430) finish the control of LED display lamp, the input of button, connection with the USB interface of intelligent terminal interactive, control buzzer simultaneously, receive from the status signal lines of Big Dipper transmit/receive module output, and use single-chip microcomputer IO simulation com port with Big Dipper transmission/receiver module interactive information, all functions all realize by the software on the single-chip microcomputer.Wherein buzzer circuit uses the active electromagnetic type buzzer of TMB12A05 (taking 1 IO of single-chip microcomputer); This terminal have 2 function buttons (KEY1, KEY2), key circuit directly links to each other with the IO of single-chip microcomputer, takies 2 IO; Figure 3 shows that lithium battery voltage observation circuit (carry A/D converter by single-chip microcomputer, need take 1 IO of single-chip microcomputer) to AD output judgement; Figure 4 shows that with Big Dipper transmit/receive module and use the mutual circuit of serial ports (use 2 IO simulations, take 2 single-chip microcomputer IO).
This terminal is after being to use the same intelligent terminal of USB interface (as smart mobile phone) to connect, can finish two-way interactive with BD_ISP by the man-machine interaction of complexity, also can use other in-plant wave points such as bluetooth, interface such as infrared with the connection of intelligent terminal, in the current realization of this terminal, be connected with the USB physical interface by USB interface chip FT245BM chip, realize the conversion of usb protocol, the concrete structure block diagram as shown in Figure 5.
This terminal uses button and LED lamp to finish related setting and demonstration by the big-dipper satellite communication system when not using intelligent terminal to set up simple emergency communication with BD_ISP, 4 LED lamps that this terminal is used are defined as LED1, LED2, LED3, LED4 respectively, wherein LED1 is a red light, LED2 is a green light, and the various combination function of LED lamp may be defined as in this programme:
1) battery electric quantity indication: after system power supply was opened, when battery electric quantity hanged down, LED1 flickered once (as being set at per 5 seconds, the mode that LED1 is bright 2 seconds) at set intervals.
2) satellite positioning signal indication: after system power supply was opened: Big Dipper communication terminal at first carried out the search of satellite, when alternately flicker of satellite search success back LED2, the expression terminal can position calculates obtaining of the locating information of also having finished current time.
3) emergency communication sends indication: system power supply is opened, satellite fix index signal indication locating information is obtained, after pressing danger button this moment, send continuously 3 times by communication terminal locating information such as coordinate are sent to specific Big Dipper information service center (BD_ISP), and the answer signal of wait BD_ISP, during this period, LED3 is flicker alternately, behind the answer signal that receives the BD_ISP transmission, this answer signal has been received in the buzzer prompting that starts a certain frequency simultaneously.
4) simple interactive communication: the simple communication of Big Dipper communication terminal and BD_ISP can be combined into other functional definitions by buzzer and LED2, LED3/ LED4 lamp, as can sending the mutual of simple information, emergency information has been sent to Related Contact, emergency management and rescue work such as BD_ISP and carried out etc.
Keypress function definition in this programme:
1) when KEY1 and KEY2 press simultaneously, the expression emergency communication sends location and emergency information by Big Dipper communication terminal to special-purpose Big Dipper information service center.
2) when only pressing KEY1 or KEY2, the expression user wishes to obtain the concord of BD_ISP to Big Dipper communication terminal institute photos and sending messages, the information that this moment, BD_ISP sent can be resolved relevant information by control buzzer and LED lamp and present to the user after single-chip microcomputer is resolved.
The user need other more complicated and directly interactive functions can be connected with intelligent terminal by use USB, it is mutual to use the application software that customizes as Big Dipper communication terminal on the intelligent terminal to finish the two-way communication of man-machine interaction and complex contents.
For employed single-chip microcomputer IO interface is expanded, to reduce the single-chip microcomputer number of pins of using, thereby reduce the chip area and the power consumption of selected monolithic, use latch to carry out the I/O expansion, realize control signal that circuit provided the LED lamp as shown in Figure 6 with the bi-directional data IO of USB interface chip FT245 to the sharing of the two-way IO of single-chip microcomputer, realized the IO expansion of single-chip microcomputer.
1) this scheme adopts the same intelligent terminal of USB interface (as smart mobile phone, panel computer etc.) to connect, with with the human-computer interaction interface of intelligent terminal as this Big Dipper communication terminal, data that man-machine interaction task complicated on the intelligent terminal is produced and control word information is through USB interface and Big Dipper communication terminal realization two-way interactive, also can use other in-plant wireless transmission methods (as bluetooth etc.) to finish communicating by letter of Big Dipper communication terminal and intelligent terminal.
2) this Big Dipper communication terminal can be finished locating information under the emergency rating and distress signal sends by function button, and the transmission of the communications status by buzzer (also can use loud speaker) and LED lamp indication Big Dipper module, emergency information and reply situation indication etc.
3) design of low-power consumption is mainly controlled the mains switch of Big Dipper transmission/receiver module to finish by the switch that uses the PMOS switching tube, and enters standby mode realization low-power consumption by single-chip microcomputer
4) many power supplys design: the DC power supply that this portable system adopts can directly satisfy the voltage requirements of Big Dipper reception/sending module, and the mode by the DC/DC needed 5V of other modules and the 3.3V DC power supply that obtain.
5) this terminal realizes the IO expansion by the use latch, and to realize the choosing few single-chip microcomputer of universal I number of pins, the shared of I/O controlled in the data I and the LED output that have specifically provided the USB chip.
Claims (6)
1. two-way mutual emergency communication terminal based on big-dipper satellite, comprise single chip control module (1), power management module (2), it is characterized in that: be connected with IO on the described single chip control module (1) and share control circuit (4), Big Dipper transmission/receiver module (9) and buzzer (8), described IO shares and is connected with USB circuit module (5) on the control circuit (4), LED lamp (6) and button (7), be connected with antenna (10) on the described Big Dipper transmission/receiver module (9), be connected with lithium battery (3) on the described power management module (2).
2. a kind of two-way mutual emergency communication terminal based on big-dipper satellite according to claim 1 is characterized in that: described IO shares control circuit (4) by single-chip microcomputer FT245(11) with single-chip microcomputer 74HC573(12) be connected with single chip control module (1).
3. a kind of two-way mutual emergency communication terminal based on big-dipper satellite according to claim 2, it is characterized in that: the CPU of described single chip control module (1) is MSP430.
4. a kind of two-way mutual emergency communication terminal based on big-dipper satellite according to claim 3, it is characterized in that: described LED lamp (6) is provided with 4, is respectively LED1, LED2, LED3 and LED4.
5. a kind of two-way mutual emergency communication terminal based on big-dipper satellite according to claim 4, it is characterized in that: described button (7) is provided with 2, is respectively KEY1 and KEY2.
6. a kind of two-way mutual emergency communication terminal based on big-dipper satellite according to claim 5 is characterized in that: described buzzer (8) is the active electromagnetic type buzzer of TMB12A05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201699903U CN202077185U (en) | 2011-05-25 | 2011-05-25 | Two-way interactive emergency communication terminal based on Beidou satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201699903U CN202077185U (en) | 2011-05-25 | 2011-05-25 | Two-way interactive emergency communication terminal based on Beidou satellite |
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| Publication Number | Publication Date |
|---|---|
| CN202077185U true CN202077185U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201699903U Expired - Fee Related CN202077185U (en) | 2011-05-25 | 2011-05-25 | Two-way interactive emergency communication terminal based on Beidou satellite |
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| CN (1) | CN202077185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780627A (en) * | 2014-12-01 | 2015-07-15 | 中国南方电网有限责任公司 | Beidou mobile phone communication system |
| CN109672460A (en) * | 2019-01-31 | 2019-04-23 | 重庆邮电大学 | A kind of asynchronous LED screen receives the system and method for DAB emergency information |
| CN111669216A (en) * | 2020-06-03 | 2020-09-15 | 中国商用飞机有限责任公司 | Method and device for aircraft communication |
-
2011
- 2011-05-25 CN CN2011201699903U patent/CN202077185U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780627A (en) * | 2014-12-01 | 2015-07-15 | 中国南方电网有限责任公司 | Beidou mobile phone communication system |
| CN109672460A (en) * | 2019-01-31 | 2019-04-23 | 重庆邮电大学 | A kind of asynchronous LED screen receives the system and method for DAB emergency information |
| CN111669216A (en) * | 2020-06-03 | 2020-09-15 | 中国商用飞机有限责任公司 | Method and device for aircraft communication |
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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: 20111214 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |