CN210923955U - Counter machine human body detection ultrasonic sensor module - Google Patents
Counter machine human body detection ultrasonic sensor module Download PDFInfo
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- CN210923955U CN210923955U CN201921801493.3U CN201921801493U CN210923955U CN 210923955 U CN210923955 U CN 210923955U CN 201921801493 U CN201921801493 U CN 201921801493U CN 210923955 U CN210923955 U CN 210923955U
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- mcu
- ultrasonic
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- human body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
Abstract
The utility model discloses a counter machine human body detection ultrasonic sensor module, which is arranged on the front side of a counter machine and comprises an MCU, a driving circuit, an amplifying circuit and an ultrasonic probe, wherein the MCU is used for detecting the human body; MCU, drive circuit and ultrasonic transducer connect gradually, and ultrasonic transducer still passes through amplifier circuit and connects MCU, and MCU still connects the cabinet platform machine, the opening and closing of control cabinet platform machine. The MCU sends a driving signal to the driving circuit, the driving circuit excites the ultrasonic probe to emit ultrasonic waves to the front face of the counter machine, and when the ultrasonic waves encounter a human body in front of the counter machine, echoes are generated and received by the probe; after the probe receives the echo signal, the weak signal is transmitted to an amplifying circuit, and the amplifying circuit amplifies the weak signal and sends the amplified signal to the MCU; the MCU calculates the distance of the detected human body through the time difference of transmitting and receiving ultrasonic waves, judges whether a person exists in a specific area or not and achieves the purpose of energy conservation.
Description
Technical Field
The utility model belongs to the ultrasonic sensor field, in particular to human body detection ultrasonic sensor module for sales counter machine.
Background
With the rapid development of information technology, the counter machine is used as a convenient human-computer interaction platform and has the advantages of low cost, high efficiency, long working time and the like, so that the counter machine is widely popularized and used. However, in practical applications, the counter still occupies a lot of resources, for example, in a time period when the counter is not used by a customer, the counter is on line for a long time, and a huge waste of power and network resources is caused.
The ultrasonic sensor can emit a sound wave with frequency higher than 20KHz, has good precision and directivity, and is widely applied to the fields of distance measurement, human body identification and the like at present. The ultrasonic sensor is combined with the counter machine, so that the use condition of the counter machine can be conveniently detected, and the opening and closing of a counter machine system can be controlled.
However, because the signal of the ultrasonic sensor is very weak and is easily interfered by the external environment, in order to ensure the normal operation of the ultrasonic sensor, a circuit module with strong anti-interference capability and stable operation needs to be designed for cooperation.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an ultrasonic sensor module realizes the control that has or not to sales counter specific area personnel to according to control judgement result control cabinet platform machine mode, reach energy-conserving purpose.
The technical scheme of the utility model is that:
a counter machine human body detection ultrasonic sensor module is arranged on the front face of a counter machine and is opposite to a detected human body, and comprises an MCU (microprogrammed control unit), a driving circuit, an amplifying circuit and an ultrasonic probe; MCU, drive circuit and ultrasonic transducer connect gradually, and ultrasonic transducer still passes through amplifier circuit and connects MCU, and MCU still connects the cabinet platform machine, the opening and closing of control cabinet platform machine.
Preferably, the ultrasonic sensor module further comprises a linear power supply, the counter machine provides 12V direct current to the module as a power supply, and the linear power supply converts the direct current into working voltage of each component of the module.
Preferably, the ultrasonic sensor module is 0.8-1.2 meters away from the ground.
Preferably, the MCU sends a driving signal to the driving circuit, the driving circuit excites the ultrasonic probe to emit ultrasonic waves to the front face of the counter machine, and when the ultrasonic waves encounter a human body in front of the counter machine, echoes are generated and received by the probe; after the probe receives the echo signal, the weak signal is transmitted to an amplifying circuit, and the amplifying circuit amplifies the weak signal and sends the amplified signal to the MCU; the MCU calculates the distance of the detected human body through the time difference of transmitting and receiving ultrasonic waves, and judges whether a person exists in a specific area.
Preferably, if the MCU judges that a person is in the specific area and within the alarm distance, the MCU controls the cabinet machine system to be started through a control signal.
Preferably, if the MCU judges that no echo exists or the echo time exceeds a set value, the MCU judges that no person exists in a specific area, and the counter system is closed through a control signal.
The utility model has the advantages that:
the utility model discloses an ultrasonic sensor module realizes the control that has or not to sales counter specific area personnel to open and the switching according to control judgement result control cabinet platform machine, reach energy-conserving purpose.
Drawings
The invention will be further described with reference to the following drawings and examples:
fig. 1 is a schematic structural diagram of an ultrasonic sensor module according to the present invention;
fig. 2 is a schematic view of the installation and operation of the utility model on a counter machine.
Detailed Description
As shown in fig. 1, the human body detection ultrasonic sensor module for the counter of the present invention comprises a linear power supply, a MCU, a driving circuit, an amplifying circuit and an ultrasonic probe; MCU, drive circuit and ultrasonic transducer connect gradually, and ultrasonic transducer still passes through amplifier circuit and connects MCU, and MCU still connects the cabinet platform machine, the opening and closing of control cabinet platform machine. The ultrasonic sensor module is also provided with 12V direct current as a power supply by the counter machine, and the linear power supply converts the direct current into working voltage of each component of the module.
As shown in figure 2, the ultrasonic sensor module 1 is arranged on the front surface of the counter machine 2 and is just opposite to a measured human body 3, and the ultrasonic sensor module is 0.8-1.2 meters away from the ground.
When the counter is in specific work, the MCU sends a driving signal to the driving circuit, the driving circuit excites the ultrasonic probe to emit ultrasonic waves to the front face of the counter, and when the ultrasonic waves meet a human body in front of the counter, echo waves are generated and received by the probe; after the probe receives the echo signal, the weak signal is transmitted to an amplifying circuit, and the amplifying circuit amplifies the weak signal and sends the amplified signal to the MCU; the MCU calculates the distance of the detected human body through the time difference of transmitting and receiving ultrasonic waves, and judges whether a person exists in a specific area.
And if the MCU judges that people exist in the specific area and is within the alarm distance, the MCU controls the cabinet machine system to be started through a control signal.
And if the MCU judges that no echo exists or the echo time exceeds a set value, judging that no person exists in a specific area, and closing the counter system through a control signal.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (6)
1. A counter machine human body detection ultrasonic sensor module is characterized in that the ultrasonic sensor module is arranged on the front face of a counter machine and is opposite to a detected human body, and comprises an MCU (microprogrammed control unit), a driving circuit, an amplifying circuit and an ultrasonic probe; MCU, drive circuit and ultrasonic transducer connect gradually, and ultrasonic transducer still passes through amplifier circuit and connects MCU, and MCU still connects the cabinet platform machine, the opening and closing of control cabinet platform machine.
2. The ultrasonic sensor module of claim 1, further comprising a linear power supply, wherein the counter machine provides 12V dc power to the module as a power supply, and the linear power supply converts the dc power to operating voltages for the components of the module.
3. The ultrasonic sensor module of claim 1, wherein the ultrasonic sensor module is 0.8-1.2 meters off the ground.
4. The ultrasonic sensor module of claim 1, wherein the MCU sends a driving signal to the driving circuit, and the driving circuit excites the ultrasonic probe to emit ultrasonic waves to the front of the counter, and when the ultrasonic waves encounter a human body in front of the counter, echoes are generated and received by the probe; after the probe receives the echo signal, the weak signal is transmitted to an amplifying circuit, and the amplifying circuit amplifies the weak signal and sends the amplified signal to the MCU; the MCU calculates the distance of the detected human body through the time difference of transmitting and receiving ultrasonic waves, and judges whether a person exists in a specific area.
5. The ultrasonic sensor module of claim 4, wherein the MCU controls the console system to be turned on by a control signal if the MCU determines that the specific area is occupied and is within the alarm distance.
6. The ultrasonic sensor module of claim 5, wherein the MCU is configured to shut down the counter system via the control signal if it determines that there is no echo or the echo time exceeds a predetermined value, and it determines that there is no person in the specific area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921801493.3U CN210923955U (en) | 2019-10-25 | 2019-10-25 | Counter machine human body detection ultrasonic sensor module |
| PCT/CN2019/125265 WO2021077573A1 (en) | 2019-10-25 | 2019-12-13 | Human body detection ultrasonic sensor module for counter machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921801493.3U CN210923955U (en) | 2019-10-25 | 2019-10-25 | Counter machine human body detection ultrasonic sensor module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210923955U true CN210923955U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921801493.3U Active CN210923955U (en) | 2019-10-25 | 2019-10-25 | Counter machine human body detection ultrasonic sensor module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210923955U (en) |
| WO (1) | WO2021077573A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722863B (en) * | 2023-08-10 | 2023-10-17 | 山东商业职业技术学院 | Synchronous trigger circuit of echo trough of ultrasonic measurement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2831927Y (en) * | 2005-07-22 | 2006-11-01 | 北京工业大学 | Cultural relics display cabinet having automatic controller for illumination |
| JP4899437B2 (en) * | 2005-11-18 | 2012-03-21 | アイシン精機株式会社 | Control device for opening and closing body |
| CN201383085Y (en) * | 2009-03-25 | 2010-01-13 | 温州市麦特力克电器有限公司 | Ultrasonic power supply control switch |
| CN101934969A (en) * | 2010-03-26 | 2011-01-05 | 秦皇岛国安电力电子技术有限公司 | Escalator inlet human body inductor |
| CN104504869B (en) * | 2015-01-06 | 2016-11-30 | 肖国选 | Myopia prevention alarm |
| CN107787064A (en) * | 2016-08-25 | 2018-03-09 | 由国峰 | Based on the monolithic processor controlled intelligent desk lamps of AT89S52 |
-
2019
- 2019-10-25 CN CN201921801493.3U patent/CN210923955U/en active Active
- 2019-12-13 WO PCT/CN2019/125265 patent/WO2021077573A1/en active Application Filing
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| Publication number | Publication date |
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| WO2021077573A1 (en) | 2021-04-29 |
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