CN202994144U - Digital inclinator based on accelerometer - Google Patents
Digital inclinator based on accelerometer Download PDFInfo
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- CN202994144U CN202994144U CN 201220580832 CN201220580832U CN202994144U CN 202994144 U CN202994144 U CN 202994144U CN 201220580832 CN201220580832 CN 201220580832 CN 201220580832 U CN201220580832 U CN 201220580832U CN 202994144 U CN202994144 U CN 202994144U
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- accelerometer
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- liquid crystal
- crystal display
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Abstract
The utility model discloses a digital inclinator based on an accelerometer. The digital inclinator based on the accelerometer comprises an information processing unit, and further comprises an accelerometer sensor unit, a warning unit, and a liquid crystal display unit, wherein the accelerometer sensor unit is connected with the input end of the information processing unit, and the output end of the information processing unit is respectively connected with the warning unit and the liquid crystal unit. The digital inclinator based on the accelerometer is capable of improving measurement accuracy and measurement range and convenient to carry, and greatly improves working efficiency. The digital inclinator based on the accelerometer has the advantages of being convenient to manufacture, simple in circuit, low in cost, and the like.
Description
Technical field
The utility model belongs to digital inclination measuring, based on MEMS acceleration transducer technology, relates to single-chip microcomputer, accelerometer and liquid crystal indicator, relates in particular to a kind of based on the accelerometer digital dipmeter.Can be used for level angle, relative angle, measurement of dip angle, and can according to default angular range, carry out the sound and light alarm prompting.
Background technology
Digital gradienter based on single-chip microcomputer and accelerometer is to work as the direction of top rake testing tool digital development.Inclinator is very common in people's daily life, and a lot of application scenarios are arranged, and can be applied to the fields such as building, road, automobile, bridge, oil, colliery and geologic prospecting.Compare with traditional bubble formula bar formula level meter, digital dipmeter is the inclination angle of surveying instrument face and surface level directly, and the inclination angle of measurement can be shown as angle on liquid crystal, greatly improved measuring accuracy and measurement range, and easy to carry, can increase work efficiency widely.
Summary of the invention
The purpose of this utility model is, provides a kind of based on mems accelerometer portable digital inclinator.This instrument can be measured fully to 4 directions, 360 degree; When the inclinator inversion, the angular readings of liquid crystal display can be convenient to read by automatic turning up, and can according to default angular range, carry out the sound and light alarm prompting.Have energy consumption low, easy to carry, measure characteristics accurately.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of digital dipmeter based on accelerometer, comprise information process unit, also comprise acceierometer sensor unit, alarm unit and liquid crystal display, wherein the acceierometer sensor unit is connected with the information process unit input end, and the information process unit output terminal is connected with liquid crystal display with alarm unit respectively.
The utility model also has following technical characterstic:
Described information process unit is the MC9S12XS128 single-chip microcomputer.
The MMA7361 of Freescale company is selected in described acceierometer sensor unit.
Described liquid crystal display adopts Nokia's 5110 liquid crystal display.
Described alarm unit is comprised of a hummer and LED light.
The utility model has improved measuring accuracy and measurement range, and easy to carry, can increase work efficiency widely.Have easy to make, the characteristics such as circuit is simple, and cost is low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is overall circuit catenation principle figure of the present utility model.
Fig. 3 is workflow diagram of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment
With reference to Fig. 1, of the present utility model based on the accelerometer digital dipmeter, comprise information process unit and liquid crystal display and alarm unit, also comprise the sensor unit that 3-axis acceleration sensor forms, wherein sensor unit is connected with the information process unit input end, and the information process unit output terminal is connected with liquid crystal display respectively at alarm unit.
Information process unit mainly is comprised of the MC9S12XS128 single-chip microcomputer.The MC9S12XS128maa chip is 16 single-chip microcomputers of Freescale company exploitation, abundant order set is provided, have stronger numerical operation and logical operation capability, the inside Flash program storage of 128KB, the RAM storer of 12KB, the EEPROM of 4KB, integrated serial communication interface, serial device interfaces on sheet, the functional modules such as USB interface, A/D converter, PWM and CAN, it is the processes sensor signal in real time, according to the information by the key control unit input, receive the CAN bus data, information after processing to liquid crystal display output.
The MMA7361 of Freescale company is selected in the acceierometer sensor unit, and three axle small-range acceleration sensors are the sensors that detect object motion and direction, and it changes the magnitude of voltage of output signal according to object motion and direction.The signal of each axle do not move or not by the state of Action of Gravity Field under (0g), it is output as 1.65V.If along some direction activities, perhaps be subject to Action of Gravity Field, output voltage will change according to the transducer sensitivity of its direction of motion and setting its output voltage.3-axis acceleration sensor also can be measured respectively each axial accekeration of inclinator, and then the angle of inclination of each axle of asking.
3 road AD signals with 3-axis acceleration sensor provides are connected with AN00, AN01, the AN02 of single-chip microcomputer respectively.The voltage signal that degree of will speed up instrumentation gets is converted into the accessible digital signal of single-chip microcomputer.Measure 3 group of 3 axial rake value.
Liquid crystal display adopts the 5110(PCD8544 of Nokia controller) liquid crystal display, 48*84 dot matrix LCD.When just being placed on a plane, be shown as 0 degree; When putting upside down in the plane, be shown as 180 degree, the numeral on liquid crystal is reversed at this moment, upright demonstration.After rotating a circle, show 360 degree, getting back to home position manifestation is 0.Alarm unit is comprised of a hummer and LED light, is connected with an I/O mouth of single-chip microcomputer respectively.When the number of degrees of the position that inclinator is placed surpassed the caution angle boundary of setting, inclinator can send sound and light alarm.
with reference to Fig. 2, digital dipmeter based on accelerometer of the present utility model adopts 5V for pressing key control unit and information process unit, by LM1117-3.3,5V is reduced to 3.3V supply liquid crystal display single-chip microcomputer MC9S12XS128 single-chip microcomputer MC9S12XS128 again and control triode PSS8550 to liquid crystal demonstration power supply by the PB5 mouth, single-chip microcomputer MC9S12XS128 is by the PB0 mouth, the PB1 mouth, the PB2 mouth, the PB3 mouth, the RST mouth of PB4 mouth and Nokia 5110 (PCD8544 controller) liquid crystal display, the SEC mouth, the D/C mouth, the SDIN mouth, the SCLK mouth is connected to control liquid crystal display work.
With reference to Fig. 3, workflow diagram based on the accelerometer digital dipmeter of the present utility model: MC9S12XS128 Single-chip Controlling lcd power source conducting, after the AD sampling, change the voltage signal of each axle of recording into digital quantity, measure corresponding each axle acceleration and each axle acceleration, draw the pitch angle through after the processing computing of single-chip microcomputer, control this obliquity information of liquid crystal display after processing.
Claims (5)
1. digital dipmeter based on accelerometer, comprise information process unit, it is characterized in that: also comprise acceierometer sensor unit, alarm unit and liquid crystal display, wherein the acceierometer sensor unit is connected with the information process unit input end, and the information process unit output terminal is connected with liquid crystal display with alarm unit respectively.
2. the digital dipmeter based on accelerometer as claimed in claim 1, it is characterized in that: described information process unit is the MC9S12XS128 single-chip microcomputer.
3. the digital dipmeter based on accelerometer as claimed in claim 1 is characterized in that: the MMA7361 of Freescale company is selected in described acceierometer sensor unit.
4. the digital dipmeter based on accelerometer as claimed in claim 1 is characterized in that: described liquid crystal display adopts Nokia's 5110 liquid crystal display.
5. the digital dipmeter based on accelerometer as claimed in claim 1, it is characterized in that: described alarm unit is comprised of a hummer and LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580832 CN202994144U (en) | 2012-11-06 | 2012-11-06 | Digital inclinator based on accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580832 CN202994144U (en) | 2012-11-06 | 2012-11-06 | Digital inclinator based on accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994144U true CN202994144U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220580832 Expired - Fee Related CN202994144U (en) | 2012-11-06 | 2012-11-06 | Digital inclinator based on accelerometer |
Country Status (1)
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| CN (1) | CN202994144U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398699A (en) * | 2013-08-16 | 2013-11-20 | 常熟市苏常工程质量检测有限公司 | Levelness test equipment |
| CN103604415A (en) * | 2013-10-23 | 2014-02-26 | 上海华力微电子有限公司 | Crystal boat inclination automatic induction apparatus |
| CN104165620A (en) * | 2014-07-25 | 2014-11-26 | 北京科技大学 | High-precision obliquity sensor with combined sensing elements |
| CN104864847A (en) * | 2015-05-22 | 2015-08-26 | 杭州电子科技大学 | Measuring circuit of inclination measuring instrument |
| CN105674957A (en) * | 2016-02-03 | 2016-06-15 | 浙江荣胜工具有限公司 | Electronic circuit achieving acoustic and photoelectric angle indication and leveling instrument with acoustic and photoelectric indication function |
| CN109620624A (en) * | 2018-12-14 | 2019-04-16 | 重庆迈登医疗器械有限公司 | Tooth chair control circuit and its tooth chair control system based on MMA7361 |
-
2012
- 2012-11-06 CN CN 201220580832 patent/CN202994144U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398699A (en) * | 2013-08-16 | 2013-11-20 | 常熟市苏常工程质量检测有限公司 | Levelness test equipment |
| CN103604415A (en) * | 2013-10-23 | 2014-02-26 | 上海华力微电子有限公司 | Crystal boat inclination automatic induction apparatus |
| CN104165620A (en) * | 2014-07-25 | 2014-11-26 | 北京科技大学 | High-precision obliquity sensor with combined sensing elements |
| CN104864847A (en) * | 2015-05-22 | 2015-08-26 | 杭州电子科技大学 | Measuring circuit of inclination measuring instrument |
| CN105674957A (en) * | 2016-02-03 | 2016-06-15 | 浙江荣胜工具有限公司 | Electronic circuit achieving acoustic and photoelectric angle indication and leveling instrument with acoustic and photoelectric indication function |
| CN109620624A (en) * | 2018-12-14 | 2019-04-16 | 重庆迈登医疗器械有限公司 | Tooth chair control circuit and its tooth chair control system based on MMA7361 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131106 |