CN205403855U - Current potential and temperature acquisition system - Google Patents
Current potential and temperature acquisition system Download PDFInfo
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- CN205403855U CN205403855U CN201620191646.7U CN201620191646U CN205403855U CN 205403855 U CN205403855 U CN 205403855U CN 201620191646 U CN201620191646 U CN 201620191646U CN 205403855 U CN205403855 U CN 205403855U
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Abstract
The utility model relates to a current potential and temperature acquisition system, difference according to the electrically conductive characteristic of geologic body in the earth's crust, through artificial applying in certain region under the prerequisite of DC power supply as driving source production direct current field, the measurement is awaited measuring a little for the voltage between the transmission electric field high potential, give STM32 signal acquisition and processing the system with its value through processing circuit, the analysis is carried out to the data that will gather simultaneously, the storage, and upload to the host computer through the ethernet, await measuring some data collection's of department situation of change of real -time supervision, judge the change in certain any geology circumstances according to data, thereby the prevention effect is played in the outstanding harm to in the coal exploitation, the at utmost has reduced the loss that the calamity was brought.
Description
Technical field
This utility model relates to data signal acquisition field, is specifically related to a kind of current potential and temperature acquisition system.
Background technology
In underground coal mine digging production process, coal and gas prominent is the dynamic phenomenon of a kind of complexity in mine, also it is a kind of serious natural disaster in colliery, due in tunnelling and progress of coal mining, underground primitive stress balance is broken, wall rock destabilization phenomenon produces therewith in a large number, constitute the main unsafe factor that safe coal produces, in order to prevent the various prominent harm in process of coal mining, set up good safety production environment, accomplish the purpose of the real time data acquisition of geology state change in recovery process, devise a current potential based on resistivity method and temperature acquisition system.
Utility model content
The purpose of this utility model is in that to provide a kind of current potential and temperature acquisition system, according to the difference of the conductive characteristic of geologic body in the earth's crust, apply under the premise that DC source produces DC electric field as driving source in certain area by artificial, measure tested point relative to the voltage launched between electric field high potential, give STM32 signal processing system by its value by signal processing circuit the data collected to be analyzed, may determine that the change of geological condition in certain point, thus playing preventive effect to prominent, at utmost reduce the loss that disaster is brought.
The technical problem to be solved realizes by the following technical solutions:
A kind of current potential is made up of 32 road potential acquisition modules, signal processing module, processes temperature signal module, 32 road temperature collect modules, DC source transmitter module, main control module with temperature acquisition system.
32 road potential acquisition modules are divided into potential acquisition switching circuit, signal processing circuit two parts, 32 path electrode sensors are directly connected to each road input channel of hardware circuit by 32 road potential acquisitions by the CMOS analog multiplexer DG406 of 2 16 passages, control 4 bit address by STM32 and select Duan He mono-tunnel Enable Pin, select the input signal end specifying address corresponding to export from outfan COM, then after signal processing circuit processes, give the STM32 AD processing module carried.
The Potential analogue amount signal that electrode sensor is mainly collected by signal processing module is through signal processing circuit, being transformed to the input signal adapting to AD processing module needs, signal acquisition module is mainly made up of gain control circuit, voltage comparator, operational amplifier.The voltage signal collected mainly is carried out prime decay by gain control circuit, the voltage signal collected and three reference voltages are compared by voltage comparator circuit, three road voltage result of the comparisons are judged by STM32, select rear class amplifying circuit that signal is amplified accordingly, give AD processing module by the magnitude of voltage after amplifying.
Processes temperature signal module utilizes temperature transmitter to gather 32 road temperature sensor signals, temperature sensor adopts PT100 critesistor, the change of temperature sensor is converted to the normalized current of 4mA-20mA by temperature transmitter, then passes through the sample resistance collection low-pass filtered circuit of voltage signal and 32 road temperature collect modules given by voltage follower.
Temperature acquisition signal is directly connected to each road input channel of hardware circuit by 32 road temperature collect modules by the CMOS analog multiplexer DG406 of 2 16 passages, control 4 bit address by STM32 and select Duan He mono-tunnel Enable Pin, select the input signal end specifying address corresponding to export from outfan COM end, give the STM32 AD processing module carried.
DC source transmitter module acts through A, B electrode and provides DC current to underground, so the DC current of this offer, is referred to as emission current, utilizes Hall current sensor, the current signal collected is converted to voltage signal, passes to AD processing module after signal processing.
Main control module includes STM32 control chip, ethernet communication circuit, storage card, host computer, the AD processing module carried by STM32 control chip is uploaded to host computer through ethernet communication circuit after 32 road potential acquisition signals, 32 temperature acquisition Xin He mono-road, road current signals are converted to digital signal, can also save the data in storage card simultaneously and back up.Ethernet communication circuit is DP83848 ethernet PHY transceiver, and network interface circuit is RJ45 mouth, and storage card adopts external mass storage devices SD card.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, this utility model is expanded on further.
As it is shown in figure 1, a kind of current potential is made up of 32 roads potential acquisition module (1), signal processing module (2), processes temperature signal module (3), 32 road temperature collect modules (4), DC source transmitter module (5), main control module (6) with temperature acquisition system.
32 roads potential acquisition module (1) are mainly potential acquisition switching circuit, 32 path electrode sensors (9) are directly connected to each road input channel of hardware circuit by the CMOS analog multiplexer of 2 16 passages by 32 road potential acquisitions, control 4 bit address by STM32 (6) and select Duan He mono-tunnel Enable Pin, select the input signal end specifying address corresponding to export from outfan COM, then after signal processing module (2) processes, give the STM32 AD processing module (10) carried.
The Potential analogue amount signal that electrode sensor (9) is mainly collected by signal processing module (2) is through signal processing module (2), being transformed to the input signal adapting to AD processing module (10) needs, signal acquisition module (2) is mainly made up of gain control circuit, voltage comparator, operational amplifier.The voltage signal collected mainly is carried out prime decay by gain control circuit, the voltage signal collected and three reference voltages are compared by voltage comparator circuit, three road voltage result of the comparisons are judged by STM32 (6), select rear class amplifying circuit that signal is amplified accordingly, give AD processing module (10) by the magnitude of voltage after amplifying.
Processes temperature signal module (3) utilizes temperature transmitter (3) to gather 32 tunnel temperature sensor (11) signals, temperature sensor adopts the change of PT100 critesistor to be converted to the normalized current of 4mA-20mA, then passes through the sample resistance collection low-pass filtered circuit of voltage signal and 32 road temperature collect modules (4) given by voltage follower.
Temperature acquisition signal is directly connected to each road input channel of hardware circuit by 32 road temperature collect modules (4) by the CMOS analog multiplexer DG406 of 2 16 passages, control 4 bit address by STM32 (6) and select Duan He mono-tunnel Enable Pin, select the input signal end specifying address corresponding to export from outfan COM end, give the STM32 AD processing module (10) carried.
DC source transmitter module (5) acts through A, B electrode and provides DC current to underground, so DC current of this offer, for emission current, utilize Hall current sensor, the current signal collected is converted to voltage signal, after signal processing (8), passes to AD processing module (10).
Main control module (6) includes STM32 control chip, ethernet communication circuit, storage card (12), host computer (13), the AD processing module (10) carried by STM32 control chip is uploaded to host computer (13) through ethernet network (7) after 32 road potential acquisition signals, 32 temperature acquisition Xin He mono-road, road current signals are converted to digital signal, can also save the data in backup in storage card (12) simultaneously.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (3)
1. a current potential and temperature acquisition system, it is characterised in that: current potential and temperature acquisition system are made up of 32 road potential acquisition modules, signal processing module, processes temperature signal module, 32 road temperature collect modules, DC source transmitter module, main control module.
2. a kind of current potential as claimed in claim 1 and temperature acquisition system, it is characterized in that: 32 road potential acquisition modules are potential acquisition switching circuit DG406, signal processing module is made up of gain control circuit, voltage comparator, operational amplifier, processes temperature signal module is temperature transmitter and temperature sensor PT00 critesistor composition, and main control module is STM32 control chip, ethernet communication circuit, storage card, host computer composition.
3. a kind of current potential as claimed in claim 2 and temperature acquisition system, it is characterised in that: ethernet communication circuit is DP83848 ethernet PHY transceiver, and network interface circuit is RJ45 mouth, and storage card is SD card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620191646.7U CN205403855U (en) | 2016-03-11 | 2016-03-11 | Current potential and temperature acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620191646.7U CN205403855U (en) | 2016-03-11 | 2016-03-11 | Current potential and temperature acquisition system |
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| Publication Number | Publication Date |
|---|---|
| CN205403855U true CN205403855U (en) | 2016-07-27 |
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| CN201620191646.7U Expired - Fee Related CN205403855U (en) | 2016-03-11 | 2016-03-11 | Current potential and temperature acquisition system |
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| CN (1) | CN205403855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106302729A (en) * | 2016-08-15 | 2017-01-04 | 安徽理工大学 | Current potential based on Data Fusion Structure and temperature acquisition network transmission system |
| NL2024502B1 (en) * | 2019-11-29 | 2020-11-19 | Univ Anhui Sci & Technology | Potential and temperature acquisition network transmission system based on data fusion structure |
-
2016
- 2016-03-11 CN CN201620191646.7U patent/CN205403855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106302729A (en) * | 2016-08-15 | 2017-01-04 | 安徽理工大学 | Current potential based on Data Fusion Structure and temperature acquisition network transmission system |
| NL2024502B1 (en) * | 2019-11-29 | 2020-11-19 | Univ Anhui Sci & Technology | Potential and temperature acquisition network transmission system based on data fusion structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20170311 |