CN203377871U - Built-in communication module of portable meteorological instrument - Google Patents
Built-in communication module of portable meteorological instrument Download PDFInfo
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- CN203377871U CN203377871U CN201320222171.XU CN201320222171U CN203377871U CN 203377871 U CN203377871 U CN 203377871U CN 201320222171 U CN201320222171 U CN 201320222171U CN 203377871 U CN203377871 U CN 203377871U
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Abstract
The utility model discloses a built-in communication module of a portable meteorological instrument, which comprises a DC/DC power switching circuit and an embedded computer. The embedded computer which is a C8051F020 single-chip microcomputer has a serial expanded circuit configured and a meteorological instrument communication control program integrated. The embedded computer is respectively in communication connection with Beidou communication equipment, CDMA communication equipment and short-wave communication equipment. The C8051F020 single-chip microcomputer automatically selects one of the Beidou communication equipment, the CDMA communication equipment and the short-wave communication equipment to run through the meteorological instrument communication control program or stops the communication operation of the built-in communication module. A power supply module of the portable meteorological instrument supplies proper power respectively to a CDMA MODEM module, a Beidou satellite communication module and the C8051F020 single-chip microcomputer through the DC/DC power switching circuit. Therefore, when acquiring meteorological parameters, the built-in communication module of the portable meteorological instrument can guarantee the continuity of the acquisition time to a great extent.
Description
Technical field
The utility model relates to a kind of built-in communication module of Portable Meteorograph.
Background technology
The communication mode of existing Portable Meteorograph is single, when this kind of communication mode cisco unity malfunction, will block the collection of atmospherium for corresponding meteorologic parameter, has greatly affected the analyzing and processing of follow-up meteorologic parameter.
Summary of the invention
The utility model is for the deficiencies in the prior art, a kind of built-in communication module of Portable Meteorograph is provided, and this built-in communication module has configured three kinds of communication modes of selecting an operation, therefore, while carrying out the meteorologic parameter collection, can guarantee largely the continuity of acquisition time.
For realizing above technical purpose, the utility model will be taked following technical scheme:
A kind of built-in communication module of Portable Meteorograph, this built-in communication module comprises DC/DC power-switching circuit and embedded computer; Described embedded computer, be the C8051F020 single-chip microcomputer, and the configuration serial expanded circuit, be integrated with the atmospherium communication control program; This embedded computer is connected with Big Dipper communication equipment, cdma communication equipment and short wave communication devices communicating respectively, Big Dipper communication equipment comprises big-dipper satellite communication module and the Beidou antenna be connected with the big-dipper satellite communication module, cdma communication equipment comprises CDMA MODEM module and the CDMA antenna be connected with CDMA MODEM module, and short wave communication equipment comprises short-wave radio set; What the C8051F020 single-chip microcomputer was controlled Big Dipper communication equipment, cdma communication equipment and short wave communication equipment automatically by the atmospherium communication control program selects an operation or the built-in communication module communication work of stop; The power module of atmospherium is respectively CDMA MODEM module, big-dipper satellite communication module, C8051F020 single-chip microcomputer by the DC/DC power-switching circuit suitable power source is provided.
Communication interface between described C8051F020 single-chip microcomputer and atmospherium and the communication interface between C8051F020 single-chip microcomputer and short-wave radio set are the RS-232C serial ports.
A serial ports of C8051F020 single-chip microcomputer is connected with Big Dipper reception antenna by the big-dipper satellite communication module, another serial ports is connected with atmospherium, and the C8051F020 single-chip microcomputer is connected with CDMA MODEM module, short-wave radio set respectively by serial expanded circuit simultaneously.
Described big-dipper satellite communication module is BI24 type Big Dipper generation terminal integral module.
CDMA MODEM module is EM200 CDMA MODEM module.
The operating voltage of CDMA MODEM module, big-dipper satellite communication module, C8051F020 single-chip microcomputer is respectively: 4V, 10.8V, 3.3V.
Another technical purpose of the present utility model is to provide a kind of atmospherium communication control program of built-in communication module of above-mentioned Portable Meteorograph, comprises the following steps: (1) starts built-in communication module; (2) start single-chip microcomputer initialize routine module, this single-chip microcomputer initialize routine module is for arranging the running parameter of C8051F020 single-chip microcomputer; (3) start atmospherium signal procedure module, this atmospherium signal procedure module is for receiving and the data of temporary Portable Meteorograph, starting the communication service program module, forward the order of weather central to the communication service program module; (4) start the communication service program module, this communication service program module is according to the order of CDMA MODEM module, big-dipper satellite communication module, three kinds of communication modules of short-wave radio set, alternatively control each self-corresponding communication equipment, to atmospherium signal procedure module forwards integral point and minute data, receive weather central integral point and minute querying command.
Further, the communication service program module comprises the following steps: a, selection Big Dipper communication equipment if Big Dipper communication equipment can work, start big-dipper satellite communication service program, otherwise select cdma communication equipment; If cdma communication equipment can work, start the cdma communication service routine, otherwise select short wave communication equipment, if short wave communication equipment can work, start the short wave communication service routine, otherwise finish the communication connection of built-in communication module
According to above technical scheme, with respect to prior art, the utlity model has following beneficial effect:
Built-in communication module described in the utility model has configured three kinds of communication modes of selecting an operation, therefore, while carrying out the meteorologic parameter collection, can guarantee largely the continuity of acquisition time.
The accompanying drawing explanation
Fig. 1 is that built-in communication module described in the utility model forms schematic diagram;
Fig. 2 is built-in communication module hardware global design block diagram described in the utility model;
Fig. 3 is built-in communication module software global design flow chart described in the utility model;
Fig. 4 is the power circuit diagram of atmospherium described in the utility model;
Fig. 5 is DC/DC power-switching circuit figure described in the utility model;
Fig. 6 is that C8051F020 monolithic processor resetting and equipment are selected circuit;
Fig. 7 is C8051F020 single-chip microcomputer JTAG debug i/f circuit;
Fig. 8 is the C8051F020 single chip circuit;
Fig. 9 is serial expanded circuit described in the utility model;
Figure 10 is CDMA MODEM modular circuit described in the utility model;
Figure 11 is Big Dipper modular circuit described in the utility model;
Figure 12 is the communication interface circuit of MAX3232 serial ports transponder chip described in the utility model.
Embodiment
Explain the technical solution of the utility model below with reference to accompanying drawing.
As shown in Figure 1, built-in communication module described in the utility model is integrated in Portable Meteorograph, comprises that embedded computer, CDMA module, Big Dipper module, power module and communication interface form.Major function is to provide that the big-dipper satellite that Portable Meteorograph communicates by letter with weather central is communicated by letter, short wave communication and cdma wireless communication channel.
As shown in Figure 2, the hardware of built-in communication module comprises that embedded computer, serial expanded circuit, CDMA MODEM module, big-dipper satellite communication module, communication interface and DC/DC power supply form.The software of built-in communication module adopts Keil C51 as development platform.
A) embedded computer
The function of embedded computer is operational communications software and the interface of controlling other modules is provided, from aspects such as volume, weight, power consumption, environmental suitability and development difficulties, consider, embedded computer is selected the C8051F020 single-chip microcomputer, the compatible domestic and international widely used MCS-51 series monolithic of this single-chip microcomputer, main technical characteristics is as follows:
1. CPU disposal ability: 20MIPS
2. communication interface: 2 road UART serial ports
3. program storage: 64KB
4. data storage: 4096B
5. working temperature :-40 ℃～80 ℃
The design of C8051F020 single chip circuit is mainly the design single-chip minimum system, as shown in Fig. 6-8.
B) serial expanded circuit design
Two serial ports of C8051F020 are for controlling Big Dipper module and being connected atmospherium, therefore built-in communication module needs extended serial port, adopts 4 serial ports of VK3266 serial port extended chip expansion, uses wherein two, be respectively used to control CDMA MODEM and short-wave radio set, as shown in Figure 9.
C) CDMA MODEM Modular circuit design
CDMA MODEM module is selected the EM200 CDMA MODEM module (or other companies module of the same type) of Huawei Company.The EM200 module is the technical grade module with independent intellectual property right of Huawei Company's research and development.The functions such as module support voice, data, note.The EM200 module applicable based on CDMA technology vehicle-mounted/boat-carrying, wireless terminal, data card, transfer of data, the field such as monitoring and realtime graphic transmission in real time.Its index meets the requirements.EM200 CDMA MODEM Modular circuit design is mainly the communication interface that connects VK3266 and EM200 CDMA MODEM module, as shown in figure 10.
D) Big Dipper module
The big-dipper satellite communication module is selected the BI24 type Big Dipper generation terminal integral module of middle electric 54, this module is that middle electric 54 Big Dipper generation radio frequency chip and baseband chips based on independent research develop, mainly by low noise amplifier, high power amplifier, radio frequency chip and baseband chip four parts, formed, function can meet the user in land and the marine requirement to satellite navigation location and message communication, parameter index meets the requirement of " No. one, the Big Dipper " subscriber computer test outline, and volume is little, low in energy consumption, reliability is high.Its index can reach system requirements.Big Dipper Modular circuit design is mainly the power circuit of design Big Dipper module and the communication interface of Big Dipper module and C8051F020 single-chip microcomputer, as shown in figure 11.
E) communication interface
Communication interface be mainly with the Communications Control Interface of short-wave radio set and with the communication interface of portable type ground scope, the two all adopts the RS-232C serial ports, circuit design is mainly that the Transistor-Transistor Logic level serial port power of the Transistor-Transistor Logic level serial ports of C8051F020 single-chip microcomputer and expansion is flatted turn and changed the RS-232C level into, select MAX3232 serial ports transponder chip, as shown in figure 12.
F) power supply
The DC/DC power-switching circuit, 12 volts of DC power supply being responsible for that atmospherium is provided are converted to 3.3V, 4V, the 12 volts of power supplys that each module is used.This part circuit adopts DC-DC module and voltage stabilizing chip design to realize, as shown in Figure 4,5.
(2) Software for Design
Built-in communication module software is comprised of 5 software modules such as single-chip microcomputer initialize routine, atmospherium signal procedure, big-dipper satellite communication service program, cdma communication service routine, short wave communication service routines.The software main program flow chart as shown in Figure 3.
The major function of single-chip microcomputer initialize routine module is that the singlechip chip running parameter is set, as configure baud rate of cross bar switch, house dog parameter, various communication equipments serial ports used etc., three kinds of communication equipment data transmit and adopt interrupt modes to realize, the parameters such as the interruption that also needs serial ports is set enables, interrupt priority level and interrupt identification.
The major function of atmospherium signal procedure module is the data of reception temporary portable type ground scope, starts the communication service program module, and forwards the weather central order to the portable type ground scope.
The major function of three kinds of communication service program modules is to control communication equipment according to the command set of three kinds of communication equipments, forwards integral point and minute data, receives weather central integral point and minute querying command.
Built-in communication module is integrated in the collection communication terminal, and major function is to provide the channel that the portable type ground meteorological observation equipment is communicated by letter with the weather central communication system.Built-in communication module is comprised of single-chip microcomputer, CDMA MODEM module, big-dipper satellite communication module, short-wave radio set Communications Control Interface, data acquisition unit communication interface, DC/DC power supply,
The function of single-chip microcomputer is the operational communications softwares, and the interface of controlling other modules is provided, and selects the C8051F020 single-chip microcomputer; CDMA MODEM module is selected EM200 CDMA MODEM module (or other are with performance module); Short-wave radio set Communications Control Interface, data acquisition unit communication interface all adopt the RS-232C serial ports; The DC/DC power-switching circuit, be responsible for the 12V DC power supply is converted to the 3.3V(single-chip microcomputer that each module is used), 4V(CDMA), the 10.8V(Big Dipper) power supply, adopt the DC-DC chip design to realize.
The big-dipper satellite communication module is selected the BI24 type Big Dipper generation terminal integral module of middle electric 54.This module is that middle electric 54 Big Dipper generation radio frequency core version and baseband chips based on independent research develop, mainly by low noise amplifier, high power amplifier, radio frequency chip and baseband chip four parts, formed, can be on land and marine to satellite navigation location and message communication, possesses the communication capacity that once can send at most 200 bytes, response time is 60s, can meet portable type ground meteorological observation equipment communicating requirement.
Short-wave radio set is in the situation that the backup communication means that the Big Dipper and cdma communication mode can't be used.Select can be supporting with TCR212 type 125W vehicle shortwave radio station TBR212 type loading backpack shortwave radio, the data rate of transmission is 75bps～2400bps, adopts the RS232C data-interface, the loading backpack shortwave radio gross mass is no more than 10kg, antenna is that 1m is whiplike.Provide direct current 24V power supply by self-contained storage battery, at interval of communication in 10 minutes once, in the situation that each communication continues 1 minute, can guarantee that stream time is not less than 24 hours.
The function of single-chip microcomputer is operational communications software and the interface of controlling other modules is provided, selects the C8051F020 single-chip microcomputer.Big Dipper module is selected Big Dipper generation terminal integral module, this functions of modules can meet the user in land and the marine requirement to satellite navigation location and message communication, parameter index meets the requirement of " No. one, the Big Dipper " subscriber computer test outline, and volume is little, low in energy consumption, reliability is high.Reserved No. two interfaces of the Big Dipper.CDMA MODEM module is selected EM200 CDMA MODEM module (or other are with performance module); The Communications Control Interface of short-wave radio set and all adopt the RS-232C serial ports with the communication interface of portable type ground scope; Power supply is the DC/DC power-switching circuit, is responsible for the 12V DC power supply is converted to 3.3V, 4V, the 10.8V power supply that each module is used, and adopts the DC-DC chip design to realize.
Claims (6)
1. the built-in communication module of a Portable Meteorograph, it is characterized in that: this built-in communication module comprises DC/DC power-switching circuit and embedded computer; Described embedded computer, be the C8051F020 single-chip microcomputer, and the configuration serial expanded circuit, be integrated with the atmospherium communication control program; This embedded computer is connected with Big Dipper communication equipment, cdma communication equipment and short wave communication devices communicating respectively, Big Dipper communication equipment comprises big-dipper satellite communication module and the Beidou antenna be connected with the big-dipper satellite communication module, cdma communication equipment comprises CDMA MODEM module and the CDMA antenna be connected with CDMA MODEM module, and short wave communication equipment comprises short-wave radio set; What the C8051F020 single-chip microcomputer was controlled Big Dipper communication equipment, cdma communication equipment and short wave communication equipment automatically by the atmospherium communication control program selects an operation or the built-in communication module communication work of stop; The power module of Portable Meteorograph is respectively CDMA MODEM module, big-dipper satellite communication module, C8051F020 single-chip microcomputer by the DC/DC power-switching circuit suitable power source is provided.
2. the built-in communication module of Portable Meteorograph according to claim 1, it is characterized in that: the communication interface between described C8051F020 single-chip microcomputer and Portable Meteorograph and the communication interface between C8051F020 single-chip microcomputer and short-wave radio set are the RS-232C serial ports.
3. the built-in communication module of Portable Meteorograph according to claim 1, it is characterized in that: a serial ports of C8051F020 single-chip microcomputer is connected with Beidou antenna by the big-dipper satellite communication module, another serial ports is connected with atmospherium, and the C8051F020 single-chip microcomputer is connected with CDMA MODEM module, short-wave radio set respectively by serial expanded circuit simultaneously.
4. the built-in communication module of Portable Meteorograph according to claim 1, it is characterized in that: described big-dipper satellite communication module is BI24 type Big Dipper generation terminal integral module.
5. the built-in communication module of Portable Meteorograph according to claim 1, it is characterized in that: CDMA MODEM module is EM200 CDMA MODEM module.
6. the built-in communication module of Portable Meteorograph according to claim 1, it is characterized in that: the operating voltage of CDMA MODEM module, big-dipper satellite communication module, C8051F020 single-chip microcomputer is respectively: 4V, 10.8V, 3.3V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320222171.XU CN203377871U (en) | 2013-04-26 | 2013-04-26 | Built-in communication module of portable meteorological instrument |
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| CN201320222171.XU CN203377871U (en) | 2013-04-26 | 2013-04-26 | Built-in communication module of portable meteorological instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235351A (en) * | 2013-04-26 | 2013-08-07 | 中国人民解放军理工大学 | Built-in communication module for portable atmospherium |
| CN111510201A (en) * | 2020-04-24 | 2020-08-07 | 舟山国家远洋渔业基地科技发展有限公司 | Method for returning pelagic fishing information |
-
2013
- 2013-04-26 CN CN201320222171.XU patent/CN203377871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235351A (en) * | 2013-04-26 | 2013-08-07 | 中国人民解放军理工大学 | Built-in communication module for portable atmospherium |
| CN111510201A (en) * | 2020-04-24 | 2020-08-07 | 舟山国家远洋渔业基地科技发展有限公司 | Method for returning pelagic fishing information |
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| Date | Code | Title | Description |
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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 |
Granted publication date: 20140101 Termination date: 20150426 |
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| EXPY | Termination of patent right or utility model |