CN201803718U - Low-to-medium altitude height measuring device - Google Patents
Low-to-medium altitude height measuring device Download PDFInfo
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- CN201803718U CN201803718U CN2010205351016U CN201020535101U CN201803718U CN 201803718 U CN201803718 U CN 201803718U CN 2010205351016 U CN2010205351016 U CN 2010205351016U CN 201020535101 U CN201020535101 U CN 201020535101U CN 201803718 U CN201803718 U CN 201803718U
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Abstract
The utility model provides a low-to-medium altitude height measuring device which is characterized by comprising a power supply processing circuit, a baroceptor, a sound wave generating circuit, a sound wave receiving circuit and a singlechip, wherein the power supply processing circuit is used for providing a power supply for each module; the baroceptor is used for acquiring barometric pressure and temperature data; the sound wave generating circuit is used for transmitting a sound wave signal through a sound wave transmitting probe; the sound wave receiving circuit is used for receiving the sound wave signal through the sound wave probe and carrying out filtering and amplifying, voltage-multiplying wave detection and voltage comparison on the sound wave signal; and the singlechip is used for converting barometric pressure data into altitude, storing altitude and temperature data, transmitting a sound wave starting signal to control the sound wave generating circuit, receiving data output by the sound wave receiving circuit, processing and judging all data and outputting height data. The low-to-medium altitude height measuring device has the advantages of barometric leveling, wide measuring range, higher sound wave height-measuring precision which reaches +/-0.25m, low cost and simple structure.
Description
Technical field
The utility model relates to a kind of height measuring device, especially is fit to the low-to-medium altitude height and measures.
Background technology
The high method of present domestic survey mainly contains: GPS single-point location is surveyed high, and altimetry precision is low, is subject to disturb; Laser-measured height should be noted that human body safety during use, cost is very high, and laser beam is narrow, is difficult to measure at astable platform, and optical system need keep totally, otherwise influence is measured; Wireless electrical measurement height, more complicated, the cost height is subject to disturb; Barometric leveling is subject to Changes in weather influence, and near-earth to survey high time error very big.External combination height-finding technique generally be that military GPS surveys the high and barometric leveling associated wireless electrical measurement height of high associated wireless electrical measurement, but technical difficulty is big, and cost is high relatively.Lack a kind of high wide ranges, the near-earth altimetry precision is higher relatively, price is relatively cheap, the scope of application is wide measurement mechanism surveyed at present.
The utility model content
Technical problem to be solved in the utility model is: a kind of low-to-medium altitude height measuring device is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of low-to-medium altitude height measuring device, it comprises: produce circuit for each module provides power supply processing circuit, the single-chip microcomputer of power supply, the baroceptor that is used to gather air pressure and temperature data, the sound wave that is used for sending earthward acoustic signals, be used to receive the sound wave receiving circuit of sound wave echoed signal;
Described Single-chip Controlling sound wave produces circuit; The output signal of described baroceptor and sound wave receiving circuit is imported described single-chip microcomputer, described single-chip microcomputer output altitude information.
Press such scheme, the low-to-medium altitude height measuring device also comprises the serial port chip of communicating by letter with control center, and serial port chip connects with described single-chip microcomputer.
Press such scheme, the low-to-medium altitude height measuring device also comprises display, and display connects with described single-chip microcomputer.
The course of work of the present utility model is: the air pressure and the temperature data of single-chip microcomputer timing acquiring baroceptor also starts acoustic measurement, and the air pressure of collection converts sea level elevation to, among the temporary single-chip microcomputer RAM of sea level elevation and temperature data; Sound wave produces circuit and sends acoustic signals earthward, the sound wave echoed signal is received by the sound wave receiving circuit, through the filtering amplification of sound wave receiving circuit, multiplication of voltage detection, voltage ratio after, single-chip microcomputer detects the interruption that whether has the sound wave return signal to produce in the setting-up time after stopping to send acoustic signals.As detecting look-at-me, single-chip microcomputer switches to the cement bond logging height mode, only uses the cement bond logging height, and calculates the height of measurement mechanism to ground according to sound wave from what be transmitted into time interval of returning; Then do not continue to adopt air pressure and sound wave combination to survey high mode as in setting-up time, detecting the sound wave return signal.
When showing on display, altitude information can communicate by letter with control center by serial ports.
The beneficial effects of the utility model are: barometric leveling, and measurement range is wide; The cement bond logging high precision is higher, can reach ± precision of 0.25m; The utility model is suitable for the low-to-medium altitude height and measures in conjunction with air pressure and acoustic measurement dual mode, the measuring accuracy height, and simple in structure, cost is low.
Description of drawings
Fig. 1 is the structured flowchart of the utility model one embodiment
Fig. 2 is the circuit theory diagrams of the utility model one embodiment
Fig. 3 is the control flow chart of the utility model one embodiment
Embodiment
As shown in Figure 1, the utility model embodiment comprises: produce circuit, the sound wave receiving circuit that is used to receive the sound wave echoed signal, the serial port chip of communicating by letter with control center, display for each module provides power supply processing circuit, the single-chip microcomputer of power supply, the baroceptor that is used to gather barometric information, the sound wave that is used for sending earthward acoustic signals.Display, serial port chip connect with described single-chip microcomputer.
Described Single-chip Controlling sound wave produces circuit; The output signal of described baroceptor and sound wave receiving circuit is imported described single-chip microcomputer, described single-chip microcomputer output altitude information.
As shown in Figure 2, U2, U3 and peripheral circuit thereof have been formed power supply processing circuit; U1 is a single-chip microcomputer, and C8, R2 are its reset circuit, and C9, C10, X1 are its crystal oscillating circuit; U6 is the HP03SA baroceptor; P2 is a COG128*64 LCD interface, connects with LCD by this interface; U4 is that sound wave produces circuit, by the P2.0 control of single-chip microcomputer; The LS1 sound wave sends probe; U5 is a serial port chip; LS5 is the sound wave receiving transducer; U7A-U7D is filtering amplification, detection, comparator circuit.
Fig. 3 is the control flow chart of the utility model one embodiment.During the single-chip microcomputer initialization, the T0 timer is set as 16 bit timing patterns, and regularly 50ms interrupts; The T1 timer is set as serial ports baud rate timer, baud rate 9600bts; 3 road PCA, PCA0 sets regularly 1/ (2 * 32768) s for, each T0 pin that interrupts anti-phase single-chip microcomputer once, clock signal MCLK as HP03SA, PCA1 sets 50ms for and regularly interrupts, be used to control the high time interval of cement bond logging, PCA2 sets 50ms for and regularly interrupts, and is used to calculate cement bond logging emission and the mistiming that receives when high.
Gather the air pressure and the temperature data of a baroceptor when single-chip microcomputer timer T0 regularly interrupts 10 integral multiple, the air pressure of collection converts sea level elevation to, among the temporary single-chip microcomputer RAM of sea level elevation and temperature data; Single-chip microcomputer P2.0 puts height afterwards, start acoustic measurement, the sound wave of being made up of F555 produces circuit, send 2: 1 signal of probe LS1 transmission frequency 18.271KHz dutycycle to sound wave, 0.219ms stop to send acoustic signals after promptly sending 4 signals, start PCA2, time-delay 1ms avoids direct wave diffraction and disturbs opens interrupters INT0.The sound wave return signal is received by sound wave receiving transducer LS5, and received signal is faint must be through U7 filtering amplification, multiplication of voltage detection, voltage comparison process, the interruption that whether has the sound wave return signal to produce in the 0.45s of single-chip microcomputer detection after stopping to send acoustic signals.As detect look-at-me, and then stop the PCA2 timer, read interruption times n and last timing value t
1, t=(n * 0.05+t
1) s, according to Δ H=1/2vt (v tables look-up and can get according to temperature T) calculate Δ H, show on the liquid crystal Δ H * * m, program switches to the cement bond logging height mode, only use the cement bond logging height, and survey high interval time of timer PCA1 from being transmitted into suitably adjusting of time interval of returning according to sound wave; As do not detect the sound wave return signal, then continue to adopt air pressure and sound wave combination to survey high mode, all do not detect the interruption that the sound wave return signal produces in the 0.45s after stopping to send acoustic signals three times afterwards, then before showing on the liquid crystal average H of 4 sea level elevations * * * * m.As under the cement bond logging height mode, survey and do not detect the sound wave return signal in high interval time and then continue to adopt the combination of air pressure and sound wave to survey high mode.When showing on liquid crystal, altitude information can communicate by letter with control center by serial ports.
Claims (3)
1. low-to-medium altitude height measuring device, it is characterized in that: it comprises: produce circuit for each module provides power supply processing circuit, the single-chip microcomputer of power supply, the baroceptor that is used to gather air pressure and temperature data, the sound wave that is used for sending earthward acoustic signals, be used to receive the sound wave receiving circuit of sound wave echoed signal;
Described Single-chip Controlling sound wave produces circuit; The output signal of described baroceptor and sound wave receiving circuit is imported described single-chip microcomputer, described single-chip microcomputer output altitude information.
2. low-to-medium altitude height measuring device according to claim 1 is characterized in that: it also comprises the serial port chip of communicating by letter with control center, and serial port chip connects with described single-chip microcomputer.
3. low-to-medium altitude height measuring device according to claim 1 and 2 is characterized in that: it also comprises display, and display connects with described single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205351016U CN201803718U (en) | 2010-09-19 | 2010-09-19 | Low-to-medium altitude height measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205351016U CN201803718U (en) | 2010-09-19 | 2010-09-19 | Low-to-medium altitude height measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN201803718U true CN201803718U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205351016U Expired - Fee Related CN201803718U (en) | 2010-09-19 | 2010-09-19 | Low-to-medium altitude height measuring device |
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| CN (1) | CN201803718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910578A (en) * | 2016-05-30 | 2016-08-31 | 中国电子科技集团公司第五十研究所 | Integrated air pressure radio composite height measurement equipment |
| CN106595572A (en) * | 2016-10-20 | 2017-04-26 | 北京理工大学 | Method and apparatus for measuring low-altitude flight height of aircrafts |
| CN114815457A (en) * | 2022-06-29 | 2022-07-29 | 深圳市爱图仕影像器材有限公司 | Lighting device |
-
2010
- 2010-09-19 CN CN2010205351016U patent/CN201803718U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910578A (en) * | 2016-05-30 | 2016-08-31 | 中国电子科技集团公司第五十研究所 | Integrated air pressure radio composite height measurement equipment |
| CN106595572A (en) * | 2016-10-20 | 2017-04-26 | 北京理工大学 | Method and apparatus for measuring low-altitude flight height of aircrafts |
| CN106595572B (en) * | 2016-10-20 | 2020-07-03 | 北京理工大学 | Method and device for measuring low-altitude flight height of aircraft |
| CN114815457A (en) * | 2022-06-29 | 2022-07-29 | 深圳市爱图仕影像器材有限公司 | Lighting device |
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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: 20110420 Termination date: 20160919 |