CN103840849A - Electric power wireless data terminal - Google Patents
Electric power wireless data terminal Download PDFInfo
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- CN103840849A CN103840849A CN201210483672.3A CN201210483672A CN103840849A CN 103840849 A CN103840849 A CN 103840849A CN 201210483672 A CN201210483672 A CN 201210483672A CN 103840849 A CN103840849 A CN 103840849A
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Abstract
The invention discloses an electric power wireless data terminal, and relates to a data terminal. A central processing unit (1) is respectively connected with a wireless module (2), a USB communication interface (4), an expansion data interface (5) and a photoelectric isolator (6). The photoelectric isolator (6) is respectively connected with an RS232 interface (7), an RS485 interface and a CAN interface (9). A power supply module (3) is respectively connected with the central processing unit (1), the wireless module (2) and the expansion data interface (5). The expansion data interface (5) is also connected with the RS232 interface (7), the RS485 interface and the CAN interface (9). Hardware structure of the electric power wireless data terminal is flexible and general, an upper computer configuration program is simple and easy to use, operation is convenient and simple and structure is reasonable so that requirements for wireless data communication of the electric power industry can be met.
Description
Technical field
What the present invention relates to is a kind of data terminal, is specifically related to a kind of electric power wireless data terminal.
Background technology
It is more and more extensive that the sector application of GPRS/CDMA data communication system is just becoming; as traffic administration, environmental protection, the hydrology, meteorology, GPS location, logistics management, bank POS machine networking, city heat supply, mobile communication base station monitoring. power network automated systems etc., all become the application scenario of mobile mobile data communication.Mobile communication comprises small power station's supervisory control system, Automatic meter reading system, Street Lamp Monitor System, distributing monitoring system and electric load monitor control system etc. in typical case's application of power industry at present.
Power communication need to be by means of efficient, reliable communication port, the control command of control centre is sent to numerous terminal unit exactly, and the data message of reflection distant place machine operation is collected to control centre, thereby realize, the enforcement of controller switching equipment operational factor is monitored and controlled.Along with the fast development of domestic electrical production, as the sustainer of power information transmission, there is diversified implementation in communication port.
For power industry, GPRS wireless system for transmitting data provides the virtual private data communication network of always online, transparent data transmission for industry user.Can provide between point-to-point, ancillary equipment, communication mode between ancillary equipment and Centroid, the information that is applicable to passes and the sector application such as remote data acquisition mutually.Can realize point-to-point, center to transfer of data real-time, reciprocity between multiple spot and multiple spot.Mobile data communication especially has application prospect in distribution automation system.Distribution network communication point is many, and position disperses, broad covered area.If again lay communication network, on cost, must remain high; If employing power line carrier technology, maintenance cost is higher. and poor reliability.
Summary of the invention
For the deficiency existing in prior art, the present invention seeks to be to provide a kind of electric power wireless data terminal, its hardware configuration is agile and all-purpose, host computer configurator is simple and easy to use, easy to operate simple, rational in infrastructure, can meet the demand of power industry to RFDC.
To achieve these goals, the present invention realizes by the following technical solutions: electric power wireless data terminal, it is characterized in that, comprise CPU, wireless module, power module, usb communication interface, growth data interface, photoisolator, RS232 interface, RS485 interface and CAN interface, CPU respectively with wireless module, usb communication interface, growth data interface, photoisolator is connected, photoisolator respectively with RS232 interface, RS485 interface is connected with CAN interface, power module respectively with CPU, wireless module is connected with growth data interface, growth data interface also with RS232 interface, RS485 interface is connected with CAN interface.
According to above-mentioned electric power wireless data terminal, wherein, described CPU adopts MC68HC12DG128 single-chip microcomputer.
According to above-mentioned electric power wireless data terminal, wherein, described wireless module is supported GPRS and two kinds of wireless modules of CDMA.
According to above-mentioned electric power wireless data terminal, wherein, described usb communication interface arranges the messaging parameter of each communication interface.
According to above-mentioned electric power wireless data terminal, wherein, described usb communication interface can carry out the renewal of on-site data processing program.
According to above-mentioned electric power wireless data terminal, wherein, described power module is the double frequency module of an independent E-GSM/GPRS 900/1800 of support, is connected with extraneous by the general-purpose interface of 60 pins, three interfaces are used, i.e. power interface, SIM interface and serial line interface.It comprises complete SIM interface signal and a complete global functional serial port, and therefore the SIM interface of module and the connection of serial ports are very simple, directly the interface of module is connected with the corresponding interface of ARM system.
Hardware configuration of the present invention is agile and all-purpose, and host computer configurator is simple and easy to use, easy to operate simple, rational in infrastructure, can meet the demand of power industry to RFDC.
Accompanying drawing explanation
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
The hardware configuration schematic diagram of the present invention of Fig. 2;
Fig. 3 is the circuit theory diagrams of power module in Fig. 1;
Fig. 4 is the schematic diagram of usb communication interface of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
With reference to Fig. 1, the electric power wireless data terminal in the present embodiment, its hardware configuration is agile and all-purpose, and host computer configurator is simple and easy to use, easy to operate simple, rational in infrastructure, can meet the demand of power industry to RFDC.It comprises CPU 1, wireless module 2, power module 3, usb communication interface 4, growth data interface 5, photoisolator 6, RS232 interface 7, RS485 interface and CAN interface 9, CPU 1 respectively with wireless module 2, usb communication interface 4, growth data interface 5, photoisolator 6 is connected, photoisolator 6 respectively with RS232 interface 7, RS485 interface is connected with CAN interface 9, power module 3 respectively with CPU 1, wireless module 2 is connected with growth data interface 5, growth data interface 5 also with RS232 interface 7, RS485 interface is connected with CAN interface 9.
In the present embodiment, described CPU 1 adopts MC68HC12DG128 single-chip microcomputer.CPU 1 is the core of whole system, it is controlling the operation of all communication interface moduless on wireless data terminal, and the collection of responsible data and processing, for meeting the connection needs of the various conventional field data interface on electric device, as RS-232, RS-485 and CAN etc., and simplify hardware designs, adopt the MC68HC12DG128 single-chip microcomputer of more communication interface as central processing unit.
It is worth mentioning that, described wireless module 2 is supported GPRS and two kinds of wireless modules of CDMA.Described usb communication interface 4 arranges the messaging parameter of each communication interface.Described usb communication interface 4 can carry out the renewal of on-site data processing program.
The schematic diagram of the usb communication interface 4 in the present embodiment as shown in Figure 4, it can realize high speed parallel interface 2M byte per second with any external microcontroller, integrated 320 many structures of byte FIFO memories, the double buffering configuration of main side point has increased data throughput and has easily realized real-time Data Transmission, under batch mode and synchronous mode, all can realize the message transmission rate of 1M byte per second, can being connected by software control and USB, adopt the link indicator of GoodLink technology, in the time of communication, make LED flicker, and adopt dual supply operation, applying flexible, simplicity of design.
In the present embodiment, RS232 interface is modal industrial control communication interface, is defined as a kind of single-ended standard that increases communication distance in low rate serial communication, and RS232 adopts uneven load mode, i.e. so-called single-ended communication.Because the difference of transmission level and incoming level is only in 2V to 3V left and right, so its common mode inhibition capacity is poor, add the distributed capacitance on twisted-pair feeder, its transmitting range maximum is about 15 meters, and flank speed is 20KB/S.The present embodiment has adopted the interface chip of conventional MAX232 as RS232, single 5V power supply, and double transceiver, can meet General Requirements.Because MC68HC12DG128 single-chip microcomputer only has two Asynchronous Serial Interfaces, therefore lack an asynchronous serial for RS232 in addition.It is Asynchronous Serial Interface the SPI interface conversion of single-chip microcomputer that the present embodiment uses interface conversion chip MAX3100, communicates by letter for RS232.
In the hardware configuration of the present embodiment, RS232 interface and Ethernet interface are used for realizing client's interface requirements; GPRS module provides the wireless data communication link of system, communicates by letter with AT91RM9200 by UART interface, realizes the wireless transmission of data; The required basic function of other Implement of Function Module systems in Fig. 2.Entirety hardware configuration is relatively simple.
The hardware configuration of this embodiment is agile and all-purpose, and host computer configurator is simple and easy to use, easy to operate simple, rational in infrastructure, can meet the demand of power industry to RFDC.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. electric power wireless data terminal, it is characterized in that, comprise CPU (1), wireless module (2), power module (3), usb communication interface (4), growth data interface (5), photoisolator (6), RS232 interface (7), RS485 interface and CAN interface (9), CPU (1) respectively with wireless module (2), usb communication interface (4), growth data interface (5), photoisolator (6) is connected, photoisolator (6) respectively with RS232 interface (7), RS485 interface is connected with CAN interface (9), power module (3) respectively with CPU (1), wireless module (2) is connected with growth data interface (5), growth data interface (5) also with RS232 interface (7), RS485 interface is connected with CAN interface (9).
2. electric power wireless data terminal according to claim 1, is characterized in that, described CPU (1) adopts MC68HC12DG128 single-chip microcomputer.
3. electric power wireless data terminal according to claim 1, is characterized in that, described wireless module (2) is supported GPRS and two kinds of wireless modules of CDMA.
4. electric power wireless data terminal according to claim 1, is characterized in that, described usb communication interface (4) arranges the messaging parameter of each communication interface.
5. electric power wireless data terminal according to claim 1, is characterized in that, described usb communication interface (4) can carry out the renewal of on-site data processing program.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483672.3A CN103840849A (en) | 2012-11-23 | 2012-11-23 | Electric power wireless data terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210483672.3A CN103840849A (en) | 2012-11-23 | 2012-11-23 | Electric power wireless data terminal |
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| CN103840849A true CN103840849A (en) | 2014-06-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634893A (en) * | 2015-12-28 | 2016-06-01 | 中国石油天然气集团公司 | Petroleum downhole signal real-time transmission control system |
| CN105938045A (en) * | 2016-05-26 | 2016-09-14 | 国网辽宁省电力有限公司检修分公司 | Converter valve test data acquisition analytical apparatus and application method |
| CN108932827A (en) * | 2018-07-03 | 2018-12-04 | 国网电子商务有限公司 | Data concentrator |
-
2012
- 2012-11-23 CN CN201210483672.3A patent/CN103840849A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634893A (en) * | 2015-12-28 | 2016-06-01 | 中国石油天然气集团公司 | Petroleum downhole signal real-time transmission control system |
| CN105938045A (en) * | 2016-05-26 | 2016-09-14 | 国网辽宁省电力有限公司检修分公司 | Converter valve test data acquisition analytical apparatus and application method |
| CN108932827A (en) * | 2018-07-03 | 2018-12-04 | 国网电子商务有限公司 | Data concentrator |
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Application publication date: 20140604 |