CN102494671A - Intrinsically safe type digital tilt angle sensor for mine - Google Patents
Intrinsically safe type digital tilt angle sensor for mine Download PDFInfo
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- CN102494671A CN102494671A CN2011103672878A CN201110367287A CN102494671A CN 102494671 A CN102494671 A CN 102494671A CN 2011103672878 A CN2011103672878 A CN 2011103672878A CN 201110367287 A CN201110367287 A CN 201110367287A CN 102494671 A CN102494671 A CN 102494671A
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- tilt angle
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- conversion module
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Abstract
The invention discloses an intrinsically safe type digital tilt angle sensor for mine. The sensor comprises an acceleration sensor, wherein a signal output end of the acceleration sensor is connected with an input end of an A/D conversion module through a signal conditioning circuit, a signal output end of the A/D conversion module is connected with a signal input end of a microprocessor, and a signal output end of the microprocessor is connected with a digital quantity output interface through a signal conversion module. The sensor of the present invention has the following advantages that: the acceleration sensor is adopted to sense the component of the gravity acceleration on the measurement shaft to determine the tilt angle of the object, such that the advantages of rapid response and low power consumption of the sensor of the present invention are provided compared to the mercury tilt angle measuring instrument, the electrolyte tilt angle measuring instrument and the heat energy tilt angle measuring instrument. In addition, the high-performance 16 bit A/D converter is adopted so as to improve the resolution of tilt angle measurement.
Description
Technical field
The present invention relates to obliquity sensor, especially relate to mine intrinsic safety type numeral obliquity sensor.
Background technology
Hydraulic support electrohydraulic control system is the core technology that realizes coal mine fully-mechanized mining working robotization control, and efficiently, safely, continuously, stably producing for coal mine fully-mechanized mining working provides assurance.Mining intrinsic safety type obliquity sensor is an important composition unit of support electrohydraulic control system; Be used for carrying out attitude control and highly control in the support course of action, realize the closed-loop control of support balance jack course of action and the altitude measurement control of support.At present; The external import of the most of dependence of domestic employed electrohydraulic control system; Therefore, have problems such as price is high, the delivery cycle is long, the obliquity sensor parts price is expensive, after sale service is untimely, these factors have seriously restricted the popularization of electrohydraulic control technology.
Summary of the invention
The object of the invention is to provide high, the cheap for manufacturing cost mine intrinsic safety type of a kind of signals collecting precision digital obliquity sensor.
For realizing above-mentioned purpose, the present invention can take following technical proposals:
Mine intrinsic safety type numeral obliquity sensor of the present invention; Comprise acceleration transducer; Said acceleration transducer signals output terminal is connected with A/D modular converter input end through signal conditioning circuit, and said A/D modular converter signal output part is connected with the microprocessor signals input end; Said microprocessor signals output terminal is connected with digital-quantity output interface through signal conversion module.
The invention has the advantages that the size that adopts acceleration transducer induction acceleration of gravity component on its measurement axis confirms the angle of inclination of object, compare mercury, electrolyte, heat energy drift indicator and respond fast, low in energy consumption.In addition, adopt high performance 16 A/D converters, improved the resolution of measurement of dip angle.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is acceleration sensor module circuit theory diagrams of the present invention.
Fig. 3 is A/D modular converter circuit theory diagrams of the present invention.
Fig. 4 is a microcontroller circuit schematic diagram of the present invention.
Fig. 5 is a signaling conversion circuit schematic diagram of the present invention.
Embodiment
As shown in Figure 1; Mine intrinsic safety type numeral obliquity sensor of the present invention; Comprise acceleration transducer; Said acceleration transducer signals output terminal is connected with A/D modular converter input end through signal conditioning circuit, and said A/D modular converter signal output part is connected with the microprocessor signals input end; Said microprocessor signals output terminal is connected with digital-quantity output interface through signal conversion module.
Acceleration transducer induction acceleration of gravity also changes into voltage signal, and this voltage signal carries out analyzing and processing by microprocessor and obtains dip angle signal after the A/D module processing, and said dip angle signal is exported to RS485 digital quantity interface after signal conversion module; Power module is responsible for total system and comprises that acceleration transducer, A/D modular converter, microprocessor, signal conversion module and 485 interfaces provide stable 3.3V power supply.
Be illustrated in figure 2 as said acceleration transducer, adopt the 3.3V power supply, add between its power supply and the ground and decouple and shunt capacitance C15, C16, to reduce the influence of power supply the output signal; Capacitor C 17, C18 realize the weakening to signal noise, have confirmed the output bandwidth of acceleration transducer.
Be illustrated in figure 3 as said A/D modular converter, these 16 A/D modular converters send the control word timesharing by microprocessor the two-way simulating signal are carried out the A/D conversion, and be sent to microprocessor to the result of A/D conversion through SPI through SPI and microprocessor communication.Add between its power supply and the ground and decouple and shunt capacitance C19, C20, to reduce the interference of power supply the output signal
Be illustrated in figure 4 as micro-processor interface circuit; Adopt the MCU of a ARM7 kernel of NXP; This MCU obtains the corresponding digital signal of acceleration through SPI with the communication of A/D modular converter and obtains obliquity information through analyzing, calculate (two kinds of patterns of twin shaft and single shaft), and through two Asynchronous Serial Interfaces (UART) output angle signal.
Be illustrated in figure 5 as said signal conversion module, 485 conversion chips that this module adopts can provide the differential mode overvoltage protection, when avoiding RS-485 bus and line of electric force short circuit chip are caused damage; Have fail safe, the user can realize minimum periphery circuit design.Circuit has added terminal resistance R32, R4 (being 120 Ω), to reduce the reflection of signal, guarantees the reliability of 485 communications.
Claims (1)
1. mine intrinsic safety type numeral obliquity sensor; It is characterized in that: comprise acceleration transducer; Said acceleration transducer signals output terminal is connected with A/D modular converter input end through signal conditioning circuit, and said A/D modular converter signal output part is connected with the microprocessor signals input end; Said microprocessor signals output terminal is connected with digital-quantity output interface through signal conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103672878A CN102494671A (en) | 2011-11-18 | 2011-11-18 | Intrinsically safe type digital tilt angle sensor for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103672878A CN102494671A (en) | 2011-11-18 | 2011-11-18 | Intrinsically safe type digital tilt angle sensor for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494671A true CN102494671A (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103672878A Pending CN102494671A (en) | 2011-11-18 | 2011-11-18 | Intrinsically safe type digital tilt angle sensor for mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102494671A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141505A (en) * | 2014-06-30 | 2014-11-12 | 中国矿业大学 | Mine hydraulic support frame gesture control system and mine hydraulic support frame gesture control method based on inertia measurement |
| CN104931017A (en) * | 2015-06-19 | 2015-09-23 | 北京送变电公司 | Slope ratio measuring instrument |
| CN107300882A (en) * | 2017-08-07 | 2017-10-27 | 安徽恒泰电气科技股份有限公司 | A kind of new mine product visualizes angle correct touch control detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738493A (en) * | 2009-12-18 | 2010-06-16 | 北京华航航宇科技有限公司 | High-accuracy self-compensation digital acceleration sensor |
| CN201754088U (en) * | 2010-05-12 | 2011-03-02 | 西安交通大学 | Digital tilt sensor |
| CN102032900A (en) * | 2010-12-01 | 2011-04-27 | 宁波杉工结构监测与控制工程中心有限公司 | Digital dip-angle sensor |
| CN202350781U (en) * | 2011-11-18 | 2012-07-25 | 郑州煤矿机械集团股份有限公司 | Intrinsic safety type digital dip angle sensor for mines |
-
2011
- 2011-11-18 CN CN2011103672878A patent/CN102494671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738493A (en) * | 2009-12-18 | 2010-06-16 | 北京华航航宇科技有限公司 | High-accuracy self-compensation digital acceleration sensor |
| CN201754088U (en) * | 2010-05-12 | 2011-03-02 | 西安交通大学 | Digital tilt sensor |
| CN102032900A (en) * | 2010-12-01 | 2011-04-27 | 宁波杉工结构监测与控制工程中心有限公司 | Digital dip-angle sensor |
| CN202350781U (en) * | 2011-11-18 | 2012-07-25 | 郑州煤矿机械集团股份有限公司 | Intrinsic safety type digital dip angle sensor for mines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141505A (en) * | 2014-06-30 | 2014-11-12 | 中国矿业大学 | Mine hydraulic support frame gesture control system and mine hydraulic support frame gesture control method based on inertia measurement |
| CN104931017A (en) * | 2015-06-19 | 2015-09-23 | 北京送变电公司 | Slope ratio measuring instrument |
| CN107300882A (en) * | 2017-08-07 | 2017-10-27 | 安徽恒泰电气科技股份有限公司 | A kind of new mine product visualizes angle correct touch control detection device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120613 |