CN202710691U - Cable online monitoring device based on wireless transmission of MG323 - Google Patents

Cable online monitoring device based on wireless transmission of MG323 Download PDF

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Publication number
CN202710691U
CN202710691U CN 201220203091 CN201220203091U CN202710691U CN 202710691 U CN202710691 U CN 202710691U CN 201220203091 CN201220203091 CN 201220203091 CN 201220203091 U CN201220203091 U CN 201220203091U CN 202710691 U CN202710691 U CN 202710691U
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CN
China
Prior art keywords
wireless transmission
device based
monitoring device
utility
model
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220203091
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Chinese (zh)
Inventor
黎文安
陈勇
苏超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUHAN LANDPOWER ELECTRICAL CO Ltd
Original Assignee
WUHAN LANDPOWER ELECTRICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN 201220203091 priority Critical patent/CN202710691U/en
Application granted granted Critical
Publication of CN202710691U publication Critical patent/CN202710691U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a cable online monitoring device based on wireless transmission of an MG323 and pertains to the technical field of the power system. The cable online monitoring device based on wireless transmission of the MG323 specifically comprises five branches parallelly connected. In each branch, a current sensor is connected with a sampling circuit through an amplification and filtering circuit; the sampling circuit is connected with the GPRS module MG323; and the GPRS module MG323 is connected with a wireless antenna. The technical problem solved by the utility model is that a cable online monitoring device based on wireless transmission of the MG323 is provided for shortening the monitoring period and reducing amount of tested work.

Description

On-line monitoring of cable device based on the wireless transmission of MG323
Technical field
The utility model relates to technical field of power systems, relates in particular to a kind of on-line monitoring of cable device of the wireless transmission based on MG323.
Background technology
Radio transmission apparatus for the high-tension cable on-line monitoring based on the on-line monitoring of cable device of the wireless transmission of MG323.Measurement parameter comprises: the grounding circulation (capacitive current) of A, B, C three-phase, total ground current, a phase running current.
Traditional detection method is when the cable interruption maintenance, and the monitoring personnel detect one by one to field by using off-line measurement instrument, has that measuring period is long, the surveying work amount is large, measurement data is few, does not have the inherent defect such as continuity.
Therefore, instantly need a urgent technical matters that solves to be exactly: how can propose a kind of effective measures, to satisfy more practical application request.
The utility model content
Technical problem to be solved in the utility model provides a kind of on-line monitoring of cable device of the wireless transmission based on MG323, is used for shortening monitoring periods, reduces the test job amount.
In order to solve the problems of the technologies described above, the utility model provides a kind of on-line monitoring of cable device of the wireless transmission based on MG323, the branch road that specifically comprises five parallel joins, current sensor is connected with sample circuit with filtering circuit by amplification in the described branch road, described sample circuit and GPRS module MG323, described GPRS module MG323 is connected with wireless antenna.
To sum up, the on-line monitoring of cable device based on the wireless transmission of MG323 that the utility model provides can effectively shorten monitoring periods, reduces the test job amount.
Description of drawings
Fig. 1 is the schematic diagram of the multi-service integrated transmission equipment of optical fiber described in the utility model;
Fig. 2 is TERM_ON of the present utility model, RESET_ pin connecting circuit figure;
Fig. 3 is driving circuit schematic diagram of the present utility model;
Fig. 4 is MG323UART1 of the present utility model and host interface connection diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Based on the structure of the on-line monitoring of cable device of the wireless transmission of MG323 as shown in Figure 1.In the accompanying drawing 1,2,3,4,5---current sensor, 6---amplifying and filtering circuit 7---sample circuit, 7---single-chip microcomputer, 8---GPRS module MG323,10---wireless antenna.
1. adopt current sensor 1,2,3 to extract the grounding circulation of A, B, C three-phase; Current sensor 4 extracts total Leakage Current; Current sensor 5 extracts a phase running current.2. amplify and filtering by amplifying with 6 pairs of measured signals of filtering circuit.3. will amplify by sample circuit 7 and filtering after simulating signal convert the digital signal that computing machine can identify to and give single-chip microcomputer 8.4. single-chip microcomputer 8 is delivered to GPRS module 9 with digital signal through being assembled into fixing message format after the operand word arithmetic.5. GPRS module 9 is exported data.
Feature of the present utility model specifically comprises: (1) adopts HUAWEI MG323GSM M2M module to carry out Wireless Data Transmission.
(2) adopt the collection of single chip circuit composition data, data take LM3S5956-IQR as core to calculate, realize on-line monitoring of cable.
For the input control signal interface section, the MG323 module mainly realizes machine open/close control and hardware reset function.
The TERM_ON pin is used for realizing the machine open/close function.When the TERM_ON pin drag down 〉=1s after, can start shooting; After the start, if again the TERM_ON pin is dragged down 〉=1s, can shut down.
The RESET pin is used for realizing that module hardware resets.When the situation of software deadlock appearred in module, after dragging down RESET pin 〉=10ms, module was carried out hardware reset.
Output control signal interface
The MG323 module provides network state indication interface LED_STATUS, controls led state pilot lamp on the User Exploitation plate, the state that display network connects by the pulse signal of this interface output.In actual applications, the LED_STATUS pin is the driving LED status indicator lamp directly, and driving circuit as shown in Figure 3.
The UART interface is recommended circuit, and MG323 module (DCE) UART1 interface is connected as shown in Figure 4 with main frame (DTE's).
Above on-line monitoring of cable device to the wireless transmission based on MG323 provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (1)

1. on-line monitoring of cable device based on the wireless transmission of MG323, the branch road that comprises five parallel joins, current sensor is connected with sample circuit with filtering circuit by amplification in the described branch road, described sample circuit and GPRS module MG323, described GPRS module MG323 is connected with wireless antenna.
CN 201220203091 2012-05-08 2012-05-08 Cable online monitoring device based on wireless transmission of MG323 Expired - Lifetime CN202710691U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220203091 CN202710691U (en) 2012-05-08 2012-05-08 Cable online monitoring device based on wireless transmission of MG323

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220203091 CN202710691U (en) 2012-05-08 2012-05-08 Cable online monitoring device based on wireless transmission of MG323

Publications (1)

Publication Number Publication Date
CN202710691U true CN202710691U (en) 2013-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220203091 Expired - Lifetime CN202710691U (en) 2012-05-08 2012-05-08 Cable online monitoring device based on wireless transmission of MG323

Country Status (1)

Country Link
CN (1) CN202710691U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105067961A (en) * 2015-09-18 2015-11-18 江健良 High-voltage power station cable detection device
CN105699740A (en) * 2014-11-28 2016-06-22 国家电网公司 Method for measuring all-scale range current

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105699740A (en) * 2014-11-28 2016-06-22 国家电网公司 Method for measuring all-scale range current
CN105067961A (en) * 2015-09-18 2015-11-18 江健良 High-voltage power station cable detection device
CN105067961B (en) * 2015-09-18 2016-08-17 国网山东省电力公司曹县供电公司 A kind of high voltage generating station cable detecting device

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130130

CX01 Expiry of patent term
DD01 Delivery of document by public notice

Addressee: Wuhan Lande Electric Co.,Ltd. patent The person in charge

Document name: Notice of expiration and termination of patent right

DD01 Delivery of document by public notice