CN102903221A - 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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- CN102903221A CN102903221A CN2012103566290A CN201210356629A CN102903221A CN 102903221 A CN102903221 A CN 102903221A CN 2012103566290 A CN2012103566290 A CN 2012103566290A CN 201210356629 A CN201210356629 A CN 201210356629A CN 102903221 A CN102903221 A CN 102903221A
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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 the 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.Set up at a high speed, two-way, real-time, integrated communication system is the basis of realizing intelligent grid, is the basis on basis during intelligent grid is built and make up a communication network that can be all sidedly the various operational factors of substation transformer is monitored, measures.The communications network system that at present the various operational factors of substation transformer is monitored, measures is main to be 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 based on the communication mode of GPRS/CDMA and has realized the operational factor of substation transformer is carried out monitoring and measuring.GPRS/CDMA radio communication net mode has the characteristics such as transfer rate is large, frequency efficiency is high, data transmission is reliable as a kind of transmission network of maturation, can satisfy the requirement of distribution transformer terminals device data communication.Simultaneously because the usage charges in 1 year of each distribution transformer terminals equipment only about 100 yuan, therefore are most data acquisition and monitoring comparison in equipment communications commonly used.
But also there are some restrictions in the GPRS/CDMA communication mode, and this mode can only be used in the zone of network signal is arranged, otherwise can't 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 the mobile communication signal blind area.
The technical solution adopted for the present invention to solve the technical problems is:
Be used for the distribution transformer terminals wireless system for transmitting data of signal of communication blind area, comprise the distribution transformer terminals equipment for electricity consumption monitoring and metering; For the GPRS/CDMA communication module of carrying out network service; Be used for carrying out between distribution transformer terminals equipment and the GPRS/CDMA communication module wireless data transfer module of radio communication, described wireless data transfer module comprises the TM module and the GM module that is connected with the GPRS/CDMA communication module with the distribution transformer terminals equipment connection.
Preferably, described TM module consists of with terminal interface circuit, serial communication circuit I, microprocessor I, house dog and reset circuit I, the wireless radio frequency circuit I of distribution transformer terminals equipment connection and the power circuit I that is used for changing voltage by being used for, described terminal interface circuit, serial communication circuit I and wireless radio frequency circuit I are connected with the microprocessor I and are connected, and described house dog and reset circuit I connect the microprocessor I and be used for resetting of microprocessor I.
Further, described terminal interface circuit is provided with power lead and the data line with the distribution transformer terminals equipment connection, described power circuit I connects the terminal interface circuit, after the TM module is connected to distribution transformer terminals equipment by the terminal interface circuit, can obtain power supply from distribution transformer terminals equipment, and be converted to the operating voltage of each components and parts on the TM module by the power circuit I.
Preferably, described GM module consists of by the communication module interface circuit, serial communication circuit II, microprocessor II, house dog and the reset circuit II that are used for being connected with the GPRS/CDMA communication module, 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 the microprocessor II and are connected, and described house dog and reset circuit II connect the microprocessor II and be used for resetting of microprocessor II.
Further, described power circuit II connects the GPRS/CDMA communication module and provides working power for the GPRS/CDMA communication module.
Further, described GM module also comprises solar cell, and described solar cell connects the power circuit II, and electricity each circuit for the GM module behind 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 the GPRS/CDMA cordless communication network, adopt wireless data transfer module to carry out short-range data transmission at the signal of communication blind spot place of GPRS/CDMA cordless communication network, carry out long distance transmit by the GPRS/CDMA cordless communication network again, overcome the GPRS/CDMA cordless communication network and had the shortcoming of communication blind spot.Wireless system for transmitting data of the present invention has the characteristics such as transfer rate is large, frequency efficiency is high, data transmission is reliable, cost is low, maintenance cost is low, eliminated simultaneously and had the signal blind spot problem in the network service, satisfy the requirement of distribution transformer terminals device data communication, be applicable to power supply administration substation transformer is carried out electricity consumption monitoring and metering.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is existing distribution transformer terminals equipment work schematic diagram based on the 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 among the present invention;
Fig. 4 is the structured flowchart of GM module among 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, the TM module, 31, the terminal interface circuit, 32, the serial communication circuit I, 33, the microprocessor I, 34, house dog and reset circuit I, 35, the wireless radio frequency circuit I, 36, the power circuit I, 4, the GM module, 41, the communication module interface circuit, 42, the serial communication circuit II, 43, the microprocessor II, 44, house dog and reset circuit II, 45, the wireless radio frequency circuit II, 46, the power circuit II, 47, solar cell, 5, the 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 the 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 used for carrying out network service with the information control center 6 of power supply administration.
Described wireless data transfer module 2 comprises the TM module 3 that is connected with distribution transformer terminals equipment 1 and the GM module 4 that is connected with GPRS/CDMA communication module 5.
With reference to Fig. 3, TM module 3 is made 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 the wireless radio frequency circuit I and are connected with microprocessor I 33 respectively.Wherein, terminal interface circuit 31 is used for directly linking to each other with distribution transformer terminals equipment 1, the level signal and the packet that send with real-time reception distribution transformer terminals equipment 1, and these signals and packet are passed to microprocessor I 33, described terminal interface circuit 31 also can be passed to distribution transformer terminals equipment 1 to level signal and packet that microprocessor I 33 spreads out of.Level signal and packet that microprocessor I 33 is sent terminal interface circuit 31 here 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, also can the reception of wireless signals that GM module 4 sends over be got off, and delivers to microprocessor I 33.Serial communication circuit I 32 is used for linking to each other with the RS232 serial port circuit of PC, so that load module is to microprocessor I 33.House dog and reset circuit I 34 reset when being used for microprocessor I 33 powered on, and again resetting 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 that is connected with distribution transformer terminals equipment 1, after TM module 3 is passed through terminal interface circuit 31 and distribution transformer terminals equipment 1 is connected, power circuit I 36 passes the 5V power supply of coming to terminal interface circuit 31 and is converted to the 3.3V power supply, for the components and parts work on the TM module 3.
With reference to Fig. 4, GM module 4 is made 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 the wireless radio frequency circuit II and are connected with microprocessor II 43 respectively, and described solar cell 47 connects power circuit II 46.Wherein, communication module interface circuit 41 is used for directly linking to each other with GPRS/CDMA communication module 5, obtain to send microprocessor II 43 to behind level signal and the packet from GPRS/CDMA communication module 5, be responsible for that also microprocessor II 43 is passed 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 on the GM module 4, preferably, accumulator specification in the solar cell 47 is 12V 50AH, solar panel is 40W 12V, can guarantee 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 corresponding circuits is identical on the effect of the serial communication circuit II 42 on the GM module 4, microprocessor II 43, house dog and reset circuit II 44 and wireless radio frequency circuit II 45 and the TM module 3.
Preferably, wireless radio frequency circuit 35,45 frequency of operation in TM module 3 and the 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 that adopts in TM module 3 and the GM module 4 has the characteristics 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 use for wireless sensor network general low-cost solution is provided.Highly be integrated with the cost that helps reduce whole system, particularly 192K ROM storer can realize that the point-to-point and integrated RAM mesh network protocol stack can support the function of routing algorithm and application controls, need not to add 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 that is placed in the mobile communication signal zone by network, GPRS/CDMA communication module 5 obtains after the instructions by the GM module 4 that links to each other, instruction is sent to TM module 3 in the mobile communication signal blind area, TM module 3 is passed to instruction the distribution transformer terminals equipment 1 that is connected, distribution transformer terminals equipment 1 parses dependent instruction according to a preconcerted arrangement, again instruction is responded, for example carry out the parameter setting or carry out electricity consumption monitoring and metering.The process of data acquisition is: distribution transformer terminals equipment 1 basis that is placed in the mobile communication signal blind area sets in advance, gather the relevant device data, and by the TM module 3 that is attached thereto, data are sent to the GM module 4 that is placed in the mobile communication signal zone, GM module 4 obtains to send data to be attached thereto GPRS/CDMA communication module 5 after the data, and GPRS/CDMA communication module 5 obtains after the data data communication device crossed in the information control center 6 that network transfers back to power supply department.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 the GPRS/CDMA communication module 5 and packet wireless transmission, realized separating on GPRS/CDMA communication module 5 and distribution transformer terminals equipment 1 locus, guarantee mutually to transmit simultaneously the accuracy of data and level signal therebetween, therefore GPRS/CDMA communication module 5 can be placed on the position of GPRS signal or CDMA signal with GM module 4, thereby solved distribution transformer terminals equipment 1 place without the 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 the GPRS/CDMA cordless communication network, adopt wireless data transfer module 2 to carry out short-range data transmission at the signal of communication blind spot place of GPRS/CDMA cordless communication network, carry out long distance transmit by the GPRS/CDMA cordless communication network again, overcome the shortcoming that the GPRS/CDMA cordless communication network can't adapt to the signal of communication blind area.Wireless system for transmitting data of the present invention has the characteristics such as transfer rate is large, frequency efficiency is high, data transmission is reliable, cost is low, maintenance cost is low, eliminated simultaneously the signal blind spot problem that exists in the network service, satisfy the requirement of distribution transformer terminals equipment 1 data communication, be applicable to power supply administration to monitoring and the metering of the various operational factors of substation transformer.
The above only is preferential embodiment of the present invention, and 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., all should be included within protection scope of the present invention.
Claims (6)
1. be used for the distribution transformer terminals wireless system for transmitting data of signal of communication blind area, comprise:
The distribution transformer terminals equipment (1) that is used 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 for the wireless data transfer module (2) that carries out radio communication between distribution transformer terminals equipment (1) and the GPRS/CDMA communication module (5), described wireless data transfer module (2) comprises the TM module (3) that is connected with distribution transformer terminals equipment (1) and the GM module (4) that is connected with GPRS/CDMA communication module (5).
2. the distribution transformer terminals wireless system for transmitting data for the signal of communication blind area according to claim 1, it is characterized in that: described TM module (3) is by the terminal interface circuit (31) that is used 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 the power circuit I (36) that is used for changing voltage consist of, described terminal interface circuit (31), serial communication circuit I (32) is connected 35 with the wireless radio frequency circuit I) be connected with microprocessor I (33) respectively, described house dog and reset circuit I (34) connect microprocessor I (33) and are used for resetting of microprocessor I (33).
3. the distribution transformer terminals wireless system for transmitting data for the signal of communication blind area according to claim 2, it is characterized in that: described terminal interface circuit (31) is provided with power lead and the data line that is connected with distribution transformer terminals equipment (1), and described power circuit I (36) connects terminal interface circuit (31).
4. the distribution transformer terminals wireless system for transmitting data for the signal of communication blind area according to claim 1, it is characterized in that: described GM module (4) is by the communication module interface circuit (41) that is used 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 the power circuit II (46) that is used for changing voltage consist of, described communication module interface circuit (41), serial communication circuit II (42) is connected 45 with the wireless radio frequency circuit II) be connected with microprocessor II (43) respectively, described house dog and reset circuit II (44) connect microprocessor II (43) and are used for resetting of microprocessor II (43).
5. the distribution transformer terminals wireless system for transmitting data for the signal of communication blind area according to claim 4 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).
6. the distribution transformer terminals wireless system for transmitting data for the signal of communication blind area according to claim 4, it is characterized in that: described GM module (4) also comprises solar cell (47), described solar cell (47) connects power circuit II (46).
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| 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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| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN102903221A true CN102903221A (en) | 2013-01-30 |
| CN102903221B 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656689A (en) * | 2016-03-04 | 2016-06-08 | 贵州电网有限责任公司电力科学研究院 | Method for achieving multichannel communication of distribution transformation terminal through GPRS (General Packet Radio Service) channel layer management |
| 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 |
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| 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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| US20100061733A1 (en) * | 2000-10-27 | 2010-03-11 | Invensys Systems, Inc. | Field device configured for wireless data communication |
| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656689A (en) * | 2016-03-04 | 2016-06-08 | 贵州电网有限责任公司电力科学研究院 | Method for achieving multichannel communication of distribution transformation terminal through GPRS (General Packet Radio Service) channel layer management |
| 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 |
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| CN102903221B (en) | 2014-12-10 |
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