CN204085636U - Ultrasonic Intelligent liquid level emasuring device - Google Patents
Ultrasonic Intelligent liquid level emasuring device Download PDFInfo
- Publication number
- CN204085636U CN204085636U CN201420359978.2U CN201420359978U CN204085636U CN 204085636 U CN204085636 U CN 204085636U CN 201420359978 U CN201420359978 U CN 201420359978U CN 204085636 U CN204085636 U CN 204085636U
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- gsm
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- ultrasound wave
- liquid level
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Ultrasonic Intelligent liquid level emasuring device, it relates to remote control technology field.It comprises remote measurement device, GSM/CDNA receives and dispatches hardware platform and host computer, and remote measurement device is crossed and wirelessly receive and dispatch hardware platform with GSM/CDNA and be connected, GSM/CDNA transmitting-receiving hardware platform and host computer wired connection.Described remote measurement device comprises STC15W254S one-chip computer module, ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA, STC15W254S one-chip computer module has three interfaces, connects ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA respectively.The utility model cost is low, stable performance, measuring accuracy are high, easy to use.
Description
Technical field
The utility model relates to remote control technology field, is specifically related to Ultrasonic Intelligent liquid level emasuring device.
Background technology
At present, adopt the change widespread use of liquid level in ultrasonic liquid level measuring liquid mine, ultrasonic wave liquid level measuring apparatus is by the digital instrument of Microprocessor S3C44B0X.Ultrasonic pulse is sent by transmitter in the measurements, and sound wave is received by the receiver after liquid surface reflection, and by sound wave transmitting and receiving between time computation and measurement device to the distance on fluid to be measured surface.Be transferred to the receiver carried after receiving data message in prior art, and shown by instrument, can not remote viewing, there is limitation spatially.
Utility model content
The purpose of this utility model is to provide Ultrasonic Intelligent liquid level emasuring device, and it can realize long-distance transmissions liquid level information, and has the features such as simple structure, with low cost, power consumption is few.
In order to solve the problem existing for background technology, the utility model is by the following technical solutions: it comprises remote measurement device, GSM/CDNA receives and dispatches hardware platform and host computer, remote measurement device is crossed and is is wirelessly received and dispatched hardware platform with GSM/CDNA and be connected, and GSM/CDNA receives and dispatches hardware platform and host computer wired connection.Described remote measurement device comprises STC15W254S one-chip computer module, ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA, STC15W254S one-chip computer module has three interfaces, connects ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA respectively.The utility model cost is low, stable performance, measuring accuracy are high, easy to use.
Principle of the present utility model:
Carry out process information because system have employed high-efficiency low-power scm, device is had, and peripheral circuit is succinct, reliability comparatively high.Enhance the function of system, simplified the circuit of master controller periphery, improve the reliability of circuit.Again because system passes through Ethernet by RS485 communication transfer again to base station, information directly can also be sent to the total activation room on ground by down-hole, for Centralized Monitoring and process.
Liquid level information acquisition circuit comprises ultrasound wave transmitting and receiving circuit, temperature sensor.Wherein temperature sensor is embedded in microprocessor.Ultrasonic transmit circuit is primarily of differentiating circuit and driving circuit composition.The pulse signal that CPU sends becomes the pulse signal of standard through differentiating circuit, then goes to control high pressure by controllable silicon, forms high-voltage pulse.High-voltage pulse drives ultrasonic probe, and popping one's head in converts mechanical energy to electric energy, produces ultrasound wave.Ultrasonic pulse signal receiving circuit comprise Received signal strength amplitude limit, amplify, compare, the link such as monostable trigger, form a narrow pulse signal.Ultrasonic propagation velocity is by the impact of temperature, and accurate measurement needs temperature compensation.
Input through keyboard interface circuit and L C D display interface circuit form style man-machine interactive interface circuit, and Intelligence sensor has liquid crystal display and manual operation button usually, and LCD display display liquid level data information, the defeated people of button is used for selecting mode of operation.
The utility model has following beneficial effect:
Intelligent supersonic liquid level emasuring device is on the basis of ultrasonic wave liquid level measuring apparatus, uses microprocessor to develop as control core, has the advantages that conventional ultrasonic wave liquid level emasuring device does not have:
1. measuring accuracy is high.Measuring accuracy depends on the count frequency of intelligent liquid level measurement mechanism control chip, the precision of measurement can be revised by amendment count frequency, in addition, the measuring accuracy of liquid level emasuring device and temperature have direct relation, this Intelligent supersonic liquid level emasuring device can carry out temperature compensation, improves the precision of measurement.
2. there is diagnostic function.Ultrasound wave can be set and receive effective recovered frequency in 1 second, if do not receive effective echo of this number of times, think that reception or transmitting system are extremely, provide abnormal information.
3. there is calculating, compensate function.Adopt certain algorithm, by the sort result that each time is measured, get some middle numerical value, ask its mean value, and temperature value is compensated calculating.
4. there is powerful communication function.Liquid level information is digital quantity, digital quantity is transformed into 4 ~ 20 milliamperes of analog outputs, and simulation current flow is conducive to transmission, and antijamming capability is strong; Liquid level information is passed to host computer by asynchronous serial communication; Ethernet data transmits, and realizes long-distance transmissions liquid level information.
In sum, Intelligent supersonic liquid level emasuring device is that single-chip microcomputer, embedding people's formula system are introduced instrument, the intelligent fluid level measurement mechanism developed, it breaches the simple function of traditional sensors, have automatic measurement, high precision, Function Extension easily, powerful with external communication function, the requirement of the networking of the colliery hierarchy of control, integrated, intelligent development can be adapted to completely.
Accompanying drawing illustrates:
Fig. 1 is that the utility model measures liquid level principle schematic;
Fig. 2 is the system chart of Intelligent supersonic liquid level emasuring device of the present utility model.
Embodiment
With reference to Fig. 1-2, it comprises remote measurement device, GSM/CDNA receives and dispatches hardware platform and host computer, and remote measurement device is crossed and wirelessly receive and dispatch hardware platform with GSM/CDNA and be connected, GSM/CDNA transmitting-receiving hardware platform and host computer wired connection.Described remote measurement device comprises STC15W254S one-chip computer module, ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA, STC15W254S one-chip computer module has three interfaces, connects ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA respectively.
Calculate: in ultrasonic ranging, transmitting terminal obtains exporting a series of pulse square wave signal, pulse width is for launching hyperacoustic time interval, and measured object distance is larger, and pulse width is larger, exports pulse number and is directly proportional to tested distance.Ultrasonic transmitter launches ultrasound wave to a direction, timing is started while transmitting, ultrasound wave is propagated in atmosphere, encounter barrier in way to be just reflected back immediately, ultrasonic receiver receives reflection wave and just stops timing immediately, and the aerial velocity of propagation of ultrasound wave is C, according to the time t of timer record, just can calculate the distance L of launching site apart from barrier, that is: L=Ct/2.
Claims (2)
1. Ultrasonic Intelligent liquid level emasuring device, it is characterized in that it comprises remote measurement device, GSM/CDNA receives and dispatches hardware platform and host computer, remote measurement device is crossed and is is wirelessly received and dispatched hardware platform with GSM/CDNA and be connected, and GSM/CDNA receives and dispatches hardware platform and host computer wired connection.
2. Ultrasonic Intelligent liquid level emasuring device according to claim 1, it is characterized in that described remote measurement device comprises STC15W254S one-chip computer module, ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA, STC15W254S one-chip computer module has three interfaces, connects ultrasound wave transmitter module, ultrasound wave receiver module and the embedded transceiver module of GSM/CDNA respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359978.2U CN204085636U (en) | 2014-06-30 | 2014-06-30 | Ultrasonic Intelligent liquid level emasuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359978.2U CN204085636U (en) | 2014-06-30 | 2014-06-30 | Ultrasonic Intelligent liquid level emasuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085636U true CN204085636U (en) | 2015-01-07 |
Family
ID=52178339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420359978.2U Expired - Fee Related CN204085636U (en) | 2014-06-30 | 2014-06-30 | Ultrasonic Intelligent liquid level emasuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204085636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004402A (en) * | 2015-06-02 | 2015-10-28 | 华南师范大学 | Dynamic liquid level wireless monitoring method and system |
-
2014
- 2014-06-30 CN CN201420359978.2U patent/CN204085636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004402A (en) * | 2015-06-02 | 2015-10-28 | 华南师范大学 | Dynamic liquid level wireless monitoring method and system |
| CN105004402B (en) * | 2015-06-02 | 2018-04-24 | 华南师范大学 | The wireless monitoring method and system of a kind of dynamic liquid level |
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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 |
Granted publication date: 20150107 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |