CN203298833U - Handheld material level gage with wireless serial port - Google Patents
Handheld material level gage with wireless serial port Download PDFInfo
- Publication number
- CN203298833U CN203298833U CN2013203122247U CN201320312224U CN203298833U CN 203298833 U CN203298833 U CN 203298833U CN 2013203122247 U CN2013203122247 U CN 2013203122247U CN 201320312224 U CN201320312224 U CN 201320312224U CN 203298833 U CN203298833 U CN 203298833U
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- material level
- chip microcomputer
- alarm
- serial port
- wireless serial
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Abstract
A handheld material level gage with a wireless serial port is suitable for short distance measuring of a storage material level and for early warning. The handheld material level gage with the wireless serial port comprises a shell, a single chip microcomputer is arranged inside the shell, the single chip microcomputer is connected with an ultrasonic wave sensor, an alarm distance setting key, a liquid crystal display screen, an alarm and a wireless communication module respectively, and the liquid crystal display screen and the alarm distance setting key are arranged on the shell. The handheld material level gage with the wireless serial port is small in size, simple in structure, convenient to use, and capable of displaying the material level in the liquid crystal display screen in real time.
Description
Technical field
The utility model relates to a kind of hand-held level-sensing device, the level-sensing device of the hand-held with wireless serial that be particularly useful for storing in a warehouse material level short distance measurement and early warning are used.
Background technology
Ultrasonic material level detection unit is as a kind of typical non-contact measurement method, and in a lot of occasions, such as industry automatic control, the aspects such as building engineering survey and robot vision identification are widely used.Aspect the short distance range finding, more application is also arranged, especially at reversing automobile, industry spot, the industries such as military equipment are had relatively high expectations to measuring accuracy and convenient degree.
Compare with additive method, as laser ranging method, tellurometer survey method etc., because ultrasound wave velocity of propagation in air is far smaller than light and radio velocity of wave propagation, for the requirement of time resolution much smaller than systems such as laser ranging, tellurometer surveys, thereby the ultrasonic ranging system circuit is easily realized, simple in structure and cost is low, and ultrasound wave is not subjected to the impact of the factors such as smog, air visibility in communication process, in various occasions, all be used widely.
Existing level-sensing device is embedded in the integrated circuit system mostly, and convenience is poor, and is only that distance detects, and not yet has the function of wireless telecommunications and networking.
Summary of the invention
The purpose of this utility model is to address the above problem, provide a kind of volume little, simple in structure, easy to use, can show material level in real time on liquid crystal display, the material level early warning, be dealt into data on the Control Room PC by radio communication simultaneously, can realize the level-sensing device of the hand-held with wireless serial of multimachine networking function.
For achieving the above object, the level-sensing device of the hand-held with wireless serial that the utility model provides, comprise housing, be provided with single-chip microcomputer in housing, single-chip microcomputer is connected with respectively ultrasonic sensor, alarm distance arranges button, LCDs, alarm and wireless communication module, described LCDs and alarm distance arrange button and are located on housing.
Described single-chip microcomputer model is STC89C52; Described ultrasonic sensor model is HR340; Described wireless communication module model is APC220, and wireless communication module APC220 is provided with serial ports.
beneficial effect: the level-sensing device of the hand-held with wireless serial of the present utility model is provided with ultrasonic sensor, the ultrasound examination reaction velocity is fast, convenient, calculate simple, precision is higher, and can reach the practical requirement of industry aspect measuring accuracy, convenience and the operability of range finding have been increased, adopt the wireless communication module with wireless serial in the utility model, data can be dealt on the Control Room PC by radio communication, simultaneously can realize the multimachine networking function, the utility model is provided with LCDs, measuring distance and alarm distance can be shown in real time, can more make the operator monitor more easily variation of distance etc., this apparatus structure is simple, cost is lower, easy to use.
Description of drawings:
Fig. 1 is work block diagram of the present utility model.
Fig. 2 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, enforcement of the present utility model is further described:
As shown in Figure 1, the hand-held level-sensing device of wireless serial of the present utility model comprises housing, is provided with single-chip microcomputer in housing, and described single-chip microcomputer model is STC89C52; Single-chip microcomputer is connected with respectively ultrasonic sensor, alarm distance arranges button, LCDs, alarm and wireless communication module, and described LCDs and alarm distance arrange button and are located on housing, and described ultrasonic sensor model is HR340; Described wireless communication module model is APC220, and wireless communication module APC220 is provided with wireless serial.
During work, the range information that ultrasonic sensor will send and receive is delivered in single-chip microcomputer, by single-chip microcomputer, is processed, and single-chip microcomputer is exported to LCDs and done the numeral demonstration.Button passes to setpoint distance information in single-chip microcomputer and compares with measuring distance.When distance is measuring distance during greater than setpoint distance for safe distance, alarm does not respond.When distance is measuring distance during less than setpoint distance less than safe distance, single-chip microcomputer is exported to the alarm signal, and alarm sends warning at once.
as shown in Figure 3, single-chip microcomputer is the STC89C52 of 40 pins, pin 20 ground connection during the single-chip microcomputer normal operation, pin 40 pin meet power supply VCC, wherein pin 18, crystal oscillating circuit of series connection between pin 19, pin 9 connects reset circuit, the upper pull-up resistor that connects one group of 10K of pin P0, the pin P3.0 of single-chip microcomputer, pin P3.1 is connected with wireless communication module, range data is passed on the Control Room PC in real time, the pin P3.6 of single-chip microcomputer, pin P3.7 connects respectively button K1 and button K2 as setting alarm distance, button K1 is for increasing alarm distance, button K2 is for reducing alarm distance.When button K1 and button K2 pressed, single-chip microcomputer was made corresponding numeral output on LCDs accordingly.Pin D0-D7 of 1602 liquid crystal P1 is connected with the pin P0.1-P0.7 of single-chip microcomputer respectively, be provided with pull-up resistor set P2 between the pin of liquid crystal P1 and the pin of single-chip microcomputer, P2 is the resistance in 10 10K Europe, the pin FM of alarm BUZZER is connected on the P2.4 pin of single-chip microcomputer, ultrasonic sensor is received on P3.6 and P3.7, and corresponding output response is by program setting.Show in real time current measuring distance and setpoint distance on liquid crystal, during less than setpoint distance, alarm is reported to the police at once, reaches the purpose of early warning when measuring distance.
Because circuit adopts the 5V power supply, the hand-held level-sensing device of wireless serial of the present utility model transfers system 5V voltage used by the 9V dry cell to via voltage conversion circuit.Change-over circuit input termination 9V battery, two shunt capacitances in parallel,, through 7805 voltage stabilizing chips, connect the 5V voltage of two filter capacitor stable outputs.
Claims (4)
1. level-sensing device of the hand-held with wireless serial, it is characterized in that: it comprises housing, be provided with single-chip microcomputer in housing, single-chip microcomputer is connected with respectively ultrasonic sensor, alarm distance arranges button, LCDs, alarm and wireless communication module, described LCDs and alarm distance arrange button and are located on housing.
2. hand-held level-sensing device according to claim 1, it is characterized in that: described single-chip microcomputer model is STC89C52.
3. hand-held level-sensing device according to claim 1, it is characterized in that: described ultrasonic sensor model is HR340.
4. hand-held level-sensing device according to claim 1, it is characterized in that: described wireless communication module model is APC220.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203122247U CN203298833U (en) | 2013-06-03 | 2013-06-03 | Handheld material level gage with wireless serial port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203122247U CN203298833U (en) | 2013-06-03 | 2013-06-03 | Handheld material level gage with wireless serial port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298833U true CN203298833U (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203122247U Expired - Fee Related CN203298833U (en) | 2013-06-03 | 2013-06-03 | Handheld material level gage with wireless serial port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203298833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697968A (en) * | 2013-11-25 | 2014-04-02 | 苏州克兰兹电子科技有限公司 | Ultrasonic liquid level tracker system and method based on low-power-consumption single-chip microcomputer |
| CN103697969A (en) * | 2013-11-25 | 2014-04-02 | 苏州克兰兹电子科技有限公司 | Ultrasonic liquid level tracker system and method based on low-power-consumption single-chip microcomputer |
-
2013
- 2013-06-03 CN CN2013203122247U patent/CN203298833U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697968A (en) * | 2013-11-25 | 2014-04-02 | 苏州克兰兹电子科技有限公司 | Ultrasonic liquid level tracker system and method based on low-power-consumption single-chip microcomputer |
| CN103697969A (en) * | 2013-11-25 | 2014-04-02 | 苏州克兰兹电子科技有限公司 | Ultrasonic liquid level tracker system and method based on low-power-consumption single-chip microcomputer |
| CN103697968B (en) * | 2013-11-25 | 2016-09-21 | 苏州克兰兹电子科技有限公司 | A kind of supersonic liquid level tracker system and method based on low-power scm |
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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: 20131120 Termination date: 20140603 |