CN102903221B - Distribution transformer terminal wireless data transmission system for communication signal blind areas - Google Patents
Distribution transformer terminal wireless data transmission system for communication signal blind areas Download PDFInfo
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- CN102903221B CN102903221B CN201210356629.0A CN201210356629A CN102903221B CN 102903221 B CN102903221 B CN 102903221B CN 201210356629 A CN201210356629 A CN 201210356629A CN 102903221 B CN102903221 B CN 102903221B
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Abstract
The invention discloses a distribution transformer terminal wireless data transmission system for communication signal blind areas. The system includes a data acquisition module for electricity consumption monitoring and metering, with the module composed of distribution transformer terminal equipment; a GPRS/CDMA communication module for network communication; and a wireless data transmission module for wireless communication between the distribution transformer terminal equipment and the GPRS/CDMA communication module, with the wireless data transmission module composed of a TM module connected to the distribution transformer terminal equipment and a GM module connected to the GPRS/CDMA communication module. The wireless data transmission system provided in the invention combines wireless data transmission and a GPRS/CDMA wireless communication network, eliminates the signal blind spot problem in network communication, and meets the data communication requirements of the distribution transformer terminal equipment.
Description
Technical field
The present invention relates to a kind of data transmission system, particularly a kind of distribution transformer terminals wireless system for transmitting data that is applied in work in mobile communication signal blind area.
Background technology
Intelligent grid is exactly up-to-date informationization technology, the communication technology, Computer Control Technology and original defeated, power distribution infrastructure height combination, forms a novel power grid, realizes the intellectuality of electric system.Foundation high speed, two-way, real-time, integrated communication system are the bases of realizing intelligent grid, and build the basis that a communication network that can all sidedly the various operational factors of substation transformer be monitored, be measured is basis during intelligent grid is built.The current communications network system that the various operational factors of substation transformer are monitored, measured is main is to carry out data transmission by GPRS/CDMA radio communication net mode.
GPRS is that the English of GPRS (General Packet Radio Service) is called for short, CDMA is the english abbreviation of CDMA, with reference to Fig. 1, most distribution transformer terminals equipment all provides the communication mode based on GPRS/CDMA to realize the operational factor of substation transformer is carried out to monitoring and measuring.GPRS/CDMA radio communication net mode, as a kind of transmission network of maturation, has the features such as transfer rate is large, frequency efficiency is high, data transmission is reliable, can meet the requirement of distribution transformer terminals device data communication., due to each distribution transformer terminals equipment usage charges of a year 100 yuan of left and right only, be therefore simultaneously the conventional communication of most data acquisition and monitoring comparison in equipment.
But also there are some restrictions in GPRS/CDMA communication mode, which can only be used in having the region of network signal, otherwise cannot normally work with the distribution transformer terminals equipment of GPRS/CDMA communication module.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of distribution transformer terminals wireless system for transmitting data that is applied in work in mobile communication signal blind area.
The technical solution adopted for the present invention to solve the technical problems is:
Distribution transformer terminals wireless system for transmitting data for signal of communication blind area, comprises the distribution transformer terminals equipment for electricity consumption monitoring and metering; For the GPRS/CDMA communication module of carrying out network service; For carrying out the wireless data transfer module of radio communication between distribution transformer terminals equipment and GPRS/CDMA communication module, described wireless data transfer module comprises the TM module and the GM module being connected with GPRS/CDMA communication module with distribution transformer terminals equipment connection.
Preferably, described TM module forms by the terminal interface circuit for distribution transformer terminals equipment connection, serial communication circuit I, microprocessor I, house dog and reset circuit I, wireless radio frequency circuit I with for the power circuit I of changing voltage, described terminal interface circuit, serial communication circuit I and wireless radio frequency circuit I are connected with microprocessor I respectively, and described house dog and reset circuit I connect microprocessor I for the reset of microprocessor I.
Further, described terminal interface circuit is provided with power lead and the data line with distribution transformer terminals equipment connection, described power circuit I connects terminal interface circuit, TM module is connected to after distribution transformer terminals equipment by terminal interface circuit, can obtain power supply from distribution transformer terminals equipment, and by power circuit I, be converted to the operating voltage of each components and parts in TM module.
Preferably, described GM module forms by the communication module interface circuit for being connected with GPRS/CDMA communication module, serial communication circuit II, microprocessor II, house dog and reset circuit II, wireless radio frequency circuit II with for the power circuit II of changing voltage, described communication module interface circuit, serial communication circuit II and wireless radio frequency circuit II are connected with microprocessor II respectively, and described house dog and reset circuit II connect microprocessor II for the reset of microprocessor II.
Further, described power circuit II connects GPRS/CDMA communication module and provides working power for GPRS/CDMA communication module.
Further, described GM module also comprises solar cell, and described solar cell connects power circuit II, and electricity each circuit for GM module after power circuit II changing voltage of solar cell output provides working power.
The invention has the beneficial effects as follows: the mode that wireless system for transmitting data of the present invention adopts Wireless Data Transmission to combine with GPRS/CDMA cordless communication network, at the signal of communication blind spot place of GPRS/CDMA cordless communication network, adopt wireless data transfer module to carry out short-range data transmission, by GPRS/CDMA cordless communication network, carry out long distance transmit again, overcome the shortcoming that GPRS/CDMA cordless communication network has communication blind spot.Wireless system for transmitting data of the present invention has the features such as transfer rate is large, frequency efficiency is high, data transmission is reliable, cost is low, maintenance cost is low, eliminated simultaneously and in network service, had signal blind spot problem, meet the requirement of distribution transformer terminals device data communication, be applicable to power supply administration substation transformer is carried out to electricity consumption monitoring and metering.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the existing distribution transformer terminals equipment work schematic diagram based on GPRS/CDMA communication mode;
Fig. 2 is wireless system for transmitting data structural representation of the present invention;
Fig. 3 is the structured flowchart of TM module in the present invention;
Fig. 4 is the structured flowchart of GM module in the present invention;
Fig. 5 is TM(GM) workflow diagram of module;
Fig. 6 is TM(GM) module wireless receiving interruption process flow diagram;
Fig. 7 is TM(GM) module serial ports receive interruption process flow diagram.
Number in the figure explanation: 1, distribution transformer terminals equipment, 2, wireless data transfer module, 3, TM module, 31, terminal interface circuit, 32, serial communication circuit I, 33, microprocessor I, 34, house dog and reset circuit I, 35, wireless radio frequency circuit I, 36, power circuit I, 4, GM module, 41, communication module interface circuit, 42, serial communication circuit II, 43, microprocessor II, 44, house dog and reset circuit II, 45, wireless radio frequency circuit II, 46, power circuit II, 47, solar cell, 5, GPRS/CDMA communication module, 6, information control center.
Embodiment
With reference to Fig. 2, a kind of distribution transformer terminals wireless system for transmitting data for signal of communication blind area provided by the invention, comprise the distribution transformer terminals equipment 1 for electricity consumption monitoring and metering, described distribution transformer terminals equipment 1 connects GPRS/CDMA communication module 5 by wireless data transfer module 2, and GPRS/CDMA communication module 5 is carried out network service for the information control center 6 with power supply administration.
Described wireless data transfer module 2 comprises the TM module 3 being connected with distribution transformer terminals equipment 1 and the GM module 4 being connected with GPRS/CDMA communication module 5.
With reference to Fig. 3, TM module 3 consists of terminal interface circuit 31, serial communication circuit I 32, microprocessor I 33, house dog and reset circuit I 34, wireless radio frequency circuit I 35 and power circuit I 36, and described terminal interface circuit 31, serial communication circuit I 32, house dog and reset circuit I 34 are connected with microprocessor I 33 respectively with wireless radio frequency circuit I 35.Wherein, terminal interface circuit 31 is used for being directly connected with distribution transformer terminals equipment 1, the level signal and the packet that to receive in real time distribution transformer terminals equipment 1, send, and these signals and packet are passed to microprocessor I 33, level signal and packet that described terminal interface circuit 31 also can spread out of microprocessor I 33 are passed to distribution transformer terminals equipment 1.The level signal that microprocessor I 33 is sent terminal interface circuit 31 here and packet are sent to radio frequency units I 35 through coding, and the data-signal that also radio frequency units I 35 can be sent here is delivered to terminal interface circuit 31 after decoding.The coded signal that radio frequency units I 35 is sent microprocessor I 33 here is gone out through antenna transmission, and the reception of wireless signals that also GM module 4 can be sended over gets off, and delivers to microprocessor I 33.Serial communication circuit I 32 is used for being connected with the RS232 serial port circuit of PC, so that load module is to microprocessor I 33.When being used for microprocessor I 33 to power on, house dog and reset circuit I 34 reset, and the reset again when TM module 3 cisco unity malfunction, make TM module 3 can return to normal operating conditions.Terminal interface circuit 31 places are provided with power lead and the data line being connected with distribution transformer terminals equipment 1, after TM module 3 is connected with distribution transformer terminals equipment 1 by terminal interface circuit 31, power circuit I 36 passes the 5V power supply of coming terminal interface circuit 31 and is converted to 3.3V power supply, for the components and parts work in TM module 3.
With reference to Fig. 4, GM module 4 consists of communication module interface circuit 41, serial communication circuit II 42, microprocessor II 43, house dog and reset circuit II 44, wireless radio frequency circuit II 45, power circuit II 46 and solar cell 47, described communication module interface circuit 41, serial communication circuit II 42, house dog and reset circuit II 44 are connected with microprocessor II 43 respectively with wireless radio frequency circuit II 45, and described solar cell 47 connects power circuit II 46.Wherein, communication module interface circuit 41 is used for being directly connected with GPRS/CDMA communication module 5, from GPRS/CDMA communication module 5 obtains level signal and packet, send microprocessor II 43 to, be also responsible for that microprocessor II 43 is passed to level signal and the packet of coming and send GPRS/CDMA communication module 5 to.Power circuit II 46 obtains power supply from solar cell 47, and be converted to 3.3V voltage for the components and parts work in GM module 4, preferably, accumulator specification in solar cell 47 is 12V 50AH, solar panel is 40W 12V, can guarantee normally to work during without sunlight at continuous 15 days; Further, power circuit II 46 also connects GPRS/CDMA communication module 5, power circuit II 46 provides working power for GPRS/CDMA communication module 5, and the effect of the serial communication circuit II 42 in GM module 4, microprocessor II 43, house dog and reset circuit II 44 and wireless radio frequency circuit II 45 is identical with the effect of corresponding circuits in TM module 3.
Preferably, wireless radio frequency circuit 35,45 frequency of operation in TM module 3 and GM module 4 are 2.4GHz.Wireless radio frequency circuit 35,45 data delivering powers are adjustable, and peak transfer rate is 250Kbps.
Preferably, the microprocessor 33,43 adopting in TM module 3 and GM module 4 has the features such as low-power, low cost, complete compatible IEEE802.15.4, integrated 32 RISC MCU kernels, high performance 2.4GHz IEEE802.15.4 radio-frequency (RF) transceiver, 192kB ROM and 96kB RAM, and provide general low-cost solution for wireless sensor network application.Highly be integrated with the cost that helps reduce whole system, particularly 192K ROM storer can be realized the function that point-to-point and integrated RAM mesh network protocol stack can support routing algorithm and application controls, without adding extra exterior storage.Use the high AES coding accelerator of hardware MAC and security, greatly reduce the expense of power consumption and processor.
Preferably, described distribution transformer terminals equipment 1 selects to adopt the HL3302 of Holley type distribution transforming office terminal, and GPRS/CDMA communication module 5 is the B010 based on the side of having Neo_M590 communication module.
The course of work of the present invention is: the information control center 6 of power supply department sends order to the GPRS/CDMA communication module 5 being placed in mobile communication signal region by network, GPRS/CDMA communication module 5 obtains after instructions by connected GM module 4, instruction is sent to the TM module 3 in mobile communication signal blind area, TM module 3 is passed to instruction the distribution transformer terminals equipment 1 being connected, distribution transformer terminals equipment 1 parses dependent instruction according to a preconcerted arrangement, again instruction is responded, for example, carry out parameter setting or carry out electricity consumption monitoring and metering.The process of data acquisition is: distribution transformer terminals equipment 1 basis being placed in mobile communication signal blind area sets in advance, gather relevant device data, and by the TM module 3 being attached thereto, data are sent to the GM module 4 that is placed in mobile communication signal region, after GM module 4 obtains data, send data to be attached thereto GPRS/CDMA communication module 5, after GPRS/CDMA communication module 5 obtains data, data are transferred back in the information control center 6 of power supply department by network.Fig. 5 to Fig. 7 is the course of work process flow diagram of TM module 3 and GM module 4.
The present invention passes through the level signal between distribution transformer terminals equipment 1 and GPRS/CDMA communication module 5 and packet wireless transmission, realized separated with on distribution transformer terminals equipment 1 locus of GPRS/CDMA communication module 5, guarantee mutually to transmit the accuracy of data and level signal therebetween simultaneously, therefore GPRS/CDMA communication module 5 can be placed on together with GM module 4 to the position of GPRS signal or CDMA signal, thereby solved distribution transformer terminals equipment 1 place without mobile communication signal situation under, system still can realize remote data transmission by the present invention.
The mode that wireless system for transmitting data of the present invention adopts Wireless Data Transmission to combine with GPRS/CDMA cordless communication network, at the signal of communication blind spot place of GPRS/CDMA cordless communication network, adopt wireless data transfer module 2 to carry out short-range data transmission, by GPRS/CDMA cordless communication network, carry out long distance transmit again, overcome the shortcoming that GPRS/CDMA cordless communication network cannot adapt to signal of communication blind area.Wireless system for transmitting data of the present invention has the features such as transfer rate is large, frequency efficiency is high, data transmission is reliable, cost is low, maintenance cost is low, eliminated the signal blind spot problem existing in network service simultaneously, meet the requirement of distribution transformer terminals equipment 1 data communication, be applicable to power supply administration to the monitoring of the various operational factors of substation transformer and metering.
The foregoing is only preferential embodiment of the present invention, the present invention is not limited to embodiment described above, all any modifications of doing within the spirit and principles in the present invention, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. for the distribution transformer terminals wireless system for transmitting data of signal of communication blind area, comprising:
Distribution transformer terminals equipment (1) for electricity consumption monitoring and metering;
For the GPRS/CDMA communication module (5) of carrying out network service;
It is characterized in that: also comprise that described wireless data transfer module (2) comprises the TM module (3) being connected with distribution transformer terminals equipment (1) and the GM module (4) being connected with GPRS/CDMA communication module (5) for carrying out the wireless data transfer module (2) of radio communication between distribution transformer terminals equipment (1) and GPRS/CDMA communication module (5);
Described TM module (3) is by the terminal interface circuit (31) for being connected with distribution transformer terminals equipment (1), serial communication circuit I (32), microprocessor I (33), house dog and reset circuit I (34), wireless radio frequency circuit I (35) and forming for the power circuit I (36) of changing voltage, described terminal interface circuit (31), serial communication circuit I (32) is connected with microprocessor I (33) respectively with wireless radio frequency circuit I (35), described house dog and reset circuit I (34) connect microprocessor I (33) for the reset of microprocessor I (33),
Described GM module (4) is by the communication module interface circuit (41) for being connected with GPRS/CDMA communication module (5), serial communication circuit II (42), microprocessor II (43), house dog and reset circuit II (44), wireless radio frequency circuit II (45) and forming for the power circuit II (46) of changing voltage, described communication module interface circuit (41), serial communication circuit II (42) is connected with microprocessor II (43) respectively with wireless radio frequency circuit II (45), described house dog and reset circuit II (44) connect microprocessor II (43) for the reset of microprocessor II (43).
2. the distribution transformer terminals wireless system for transmitting data for signal of communication blind area according to claim 1, it is characterized in that: described terminal interface circuit (31) is provided with power lead and the data line being connected with distribution transformer terminals equipment (1), described power circuit I (36) connects terminal interface circuit (31).
3. the distribution transformer terminals wireless system for transmitting data for signal of communication blind area according to claim 1, is characterized in that: described power circuit II (46) connects GPRS/CDMA communication module (5) and provides working power for GPRS/CDMA communication module (5).
4. the distribution transformer terminals wireless system for transmitting data for signal of communication blind area according to claim 1, is characterized in that: described GM module (4) also comprises solar cell (47), and described solar cell (47) connects power circuit II (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356629.0A CN102903221B (en) | 2012-09-21 | 2012-09-21 | Distribution transformer terminal wireless data transmission system for communication signal blind areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356629.0A CN102903221B (en) | 2012-09-21 | 2012-09-21 | Distribution transformer terminal wireless data transmission system for communication signal blind areas |
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| Publication Number | Publication Date |
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| CN102903221A CN102903221A (en) | 2013-01-30 |
| CN102903221B true CN102903221B (en) | 2014-12-10 |
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| CN201210356629.0A Active CN102903221B (en) | 2012-09-21 | 2012-09-21 | Distribution transformer terminal wireless data transmission system for communication signal blind areas |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105656689B (en) * | 2016-03-04 | 2019-04-02 | 贵州电网有限责任公司电力科学研究院 | The method that multichannel communication multiple telecommunication is realized in the passage layered management of distribution transformer terminals GPRS |
| CN106788659A (en) * | 2016-12-27 | 2017-05-31 | 广州供电局有限公司 | Power distribution automation wireless public network signal enhancing device and distribution terminal equipment |
| CN109151749A (en) * | 2018-09-20 | 2019-01-04 | 广州市冠基信息科技有限公司 | A method of the covering of GPRS, CDMA, 4G signal is realized by Lora wireless technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201556287U (en) * | 2009-11-18 | 2010-08-18 | 东莞市域标电子科技有限公司 | Remote wireless automatic meter reading system |
| CN201805274U (en) * | 2009-12-23 | 2011-04-20 | 中国电力科学研究院 | Multifunctional intelligent TTU controller |
| CN202351347U (en) * | 2011-11-17 | 2012-07-25 | 南京因泰莱配电自动化设备有限公司 | Monitoring terminal device for distribution transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1202145B1 (en) * | 2000-10-27 | 2005-02-09 | Invensys Systems, Inc. | Field device with a transmitter and/ or receiver for wireless data communication |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556287U (en) * | 2009-11-18 | 2010-08-18 | 东莞市域标电子科技有限公司 | Remote wireless automatic meter reading system |
| CN201805274U (en) * | 2009-12-23 | 2011-04-20 | 中国电力科学研究院 | Multifunctional intelligent TTU controller |
| CN202351347U (en) * | 2011-11-17 | 2012-07-25 | 南京因泰莱配电自动化设备有限公司 | Monitoring terminal device for distribution transformer |
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