CN204101623U - Intelligence monitoring of stray current sensor - Google Patents

Intelligence monitoring of stray current sensor Download PDF

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Publication number
CN204101623U
CN204101623U CN201420437335.5U CN201420437335U CN204101623U CN 204101623 U CN204101623 U CN 204101623U CN 201420437335 U CN201420437335 U CN 201420437335U CN 204101623 U CN204101623 U CN 204101623U
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China
Prior art keywords
chip microcomputer
data
stray current
current sensor
monitoring
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Active
Application number
CN201420437335.5U
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Chinese (zh)
Inventor
戴亮
朱祥连
郭志奇
张晓峥
阚劲松
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.)
Zhenjiang Daqo Secheron Traction Power Co Ltd
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Zhenjiang Daqo Secheron Traction Power Co Ltd
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Priority to CN201420437335.5U priority Critical patent/CN204101623U/en
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Abstract

The utility model discloses a kind of intelligent monitoring of stray current sensor.It comprises and can to gather between rail and drainage net and the data acquisition load module of voltage measurement scope between contrast electrode and drainage net; described data acquisition load module connects single-chip microcomputer through an A/D converter by spi bus; described single-chip microcomputer connects supervisory system through isolation protective circuit by RS485 serial ports; described single-chip microcomputer, by the connection of I/O interface can display power supply normally indicates, communication normally indicates, the LED of false alarm instruction, single-chip microcomputer is also provided with watchdog module.After adopting above-mentioned structure, by decreasing the error of multi-group data in transmitting procedure to the intelligent processing method of data, improve real-time and the accuracy of data; Reset fault can be restarted rapidly during sensor failure and ensure that data can be recovered in time, not affect supervisory system to the monitoring of data with react timely.

Description

Intelligence monitoring of stray current sensor
Technical field
The utility model relates to a kind of urban track traffic sensor, specifically a kind of intelligent monitoring of stray current sensor.
Background technology
Urban track traffic is while bringing convenience to people's lives, and also the problem that can not be ignored served by band; The stray current corrosion plant issue that urban track traffic run duration produces is exactly one; The existence of stray current, produces galvanic corrosion to the metal pipe line such as steel pipe, reinforcing bar in the telecommunication cable buried underground in subway (or light rail) surrounding soil, running tunnel, destroys its intensity, reduce its life-span; It is very difficult for keeping in repair the xoncrete structure damaged because of stray current corrosion and change; Therefore, realize automatically monitoring Stray Current in Urban Rail Transit, the safety of urban track traffic, reliability service are had great importance.
In this case, just need the distribution of monitoring track stray current accurately and timely, dredge stray current by drain means and make it reduce to minimum to underground corrosion of metal.The effect that collector is main is in the market that the raw data collected directly is uploaded by agreement, significant data power down is not preserved, simultaneously hardware watchdog function is not set, external electromagnetic interference, control loss of power, program fleet exception condition under the accuracy of data and real-time can not be guaranteed.
The intelligent stray current sensor of SCMS-SU possesses data intelligence processing ability, reduces upper level device information treatment capacity, arranges hardware watchdog and power down significant data hold function simultaneously, improves real-time and the accuracy of data; For background monitoring system provides data foundation accurately, ensure the accurate operation of stream discharging system.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of real-time and the accuracy that can improve data, and reset fault can be restarted rapidly ensure that data can be recovered in time, do not affect supervisory system to the monitoring of data and the intelligent monitoring of stray current sensor that reacts timely.
In order to solve the problems of the technologies described above, intelligent monitoring of stray current sensor of the present utility model, comprise and can to gather between rail and drainage net and the data acquisition load module of voltage measurement scope between contrast electrode and drainage net, described data acquisition load module connects single-chip microcomputer through an A/D converter by spi bus, described single-chip microcomputer connects supervisory system through isolation protective circuit by RS485 serial ports, described single-chip microcomputer is connected can normally be indicated by display power supply by I/O interface, communication normally indicates, the LED of false alarm instruction, single-chip microcomputer is also provided with watchdog module.
Described single-chip microcomputer is provided with reset button.
After adopting above-mentioned structure, by the data that collecting unit collection is relevant to stray current, data processing circuit plate carries out data processing to the data obtained from collecting unit, obtains the parameter calculated needed for stray current.By decreasing the error of multi-group data in transmitting procedure to the intelligent processing method of data, improve real-time and the accuracy of data; The hardware watchdog module arranged, when sensor is subject to external environment condition impact or program exception, reset fault can be restarted rapidly during sensor failure and ensure that data can be recovered in time, do not affect supervisory system to the monitoring of data with react timely, also improve real-time and the accuracy of data simultaneously; For background monitoring system provides data foundation accurately, ensure the accurate operation of stream discharging system.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model intelligence monitoring of stray current sensor.
Embodiment
Below in conjunction with the drawings and specific embodiments, intelligent monitoring of stray current sensor of the present utility model is described in further detail.
As shown in the figure, intelligent monitoring of stray current sensor of the present utility model, " INPUT " is data acquisition load module, gathers voltage measurement scope between rail and drainage net :-250 ~+250V; Gather voltage measurement scope between contrast electrode and drainage net :-2.5V ~+2.5V, data acquisition load module connects " MCU " one chip microcomputer through an A/D converter by SPI high speed full-duplex communication bus, data are by " MCU " one chip microcomputer intelligent processing method, single-chip microcomputer connects supervisory system through isolation protective circuit by RS485 serial ports, data are made to pass through " MCU " one chip microcomputer intelligent processing method thus, through " ADM2483 " isolation protective circuit, be uploaded to supervisory system through RS485 serial ports; Single-chip microcomputer is by the connection of I/O interface can display power supply normally indicates, communication normally indicates, the LED of false alarm instruction, and the convenient intellectualized sensor that detects has problems; Single-chip microcomputer is also provided with watchdog module, single-chip microcomputer is provided with reset button, monitoring power supply and program are run, and the monitoring facilities alarm lamp that makes a mistake is bright, automatically resets and restarts " RESET ", prevent intellectualized sensor from crashing after 1.6 seconds.

Claims (2)

1. an intelligent monitoring of stray current sensor; it is characterized in that: comprise and can to gather between rail and drainage net and the data acquisition load module of voltage measurement scope between contrast electrode and drainage net; described data acquisition load module connects single-chip microcomputer through an A/D converter by spi bus; described single-chip microcomputer connects supervisory system through isolation protective circuit by RS485 serial ports; described single-chip microcomputer, by the connection of I/O interface can display power supply normally indicates, communication normally indicates, the LED of false alarm instruction, single-chip microcomputer is also provided with watchdog module.
2., according to intelligent monitoring of stray current sensor according to claim 1, it is characterized in that: described single-chip microcomputer is provided with reset button.
CN201420437335.5U 2014-08-04 2014-08-04 Intelligence monitoring of stray current sensor Active CN204101623U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420437335.5U CN204101623U (en) 2014-08-04 2014-08-04 Intelligence monitoring of stray current sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420437335.5U CN204101623U (en) 2014-08-04 2014-08-04 Intelligence monitoring of stray current sensor

Publications (1)

Publication Number Publication Date
CN204101623U true CN204101623U (en) 2015-01-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420437335.5U Active CN204101623U (en) 2014-08-04 2014-08-04 Intelligence monitoring of stray current sensor

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CN (1) CN204101623U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106124828A (en) * 2016-06-28 2016-11-16 中国船舶重工集团公司第七二五研究所 A kind of novel seawaterline stray current detecting device
CN110836922A (en) * 2019-11-18 2020-02-25 上海地铁维护保障有限公司供电分公司 Device for detecting working state of reference electrode and working method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106124828A (en) * 2016-06-28 2016-11-16 中国船舶重工集团公司第七二五研究所 A kind of novel seawaterline stray current detecting device
CN110836922A (en) * 2019-11-18 2020-02-25 上海地铁维护保障有限公司供电分公司 Device for detecting working state of reference electrode and working method thereof
CN110836922B (en) * 2019-11-18 2022-03-15 上海地铁维护保障有限公司供电分公司 Device for detecting working state of reference electrode and working method thereof

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