CN113916427A - Pressure detection device based on NB-IoT technology - Google Patents
Pressure detection device based on NB-IoT technology Download PDFInfo
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- CN113916427A CN113916427A CN202111097954.5A CN202111097954A CN113916427A CN 113916427 A CN113916427 A CN 113916427A CN 202111097954 A CN202111097954 A CN 202111097954A CN 113916427 A CN113916427 A CN 113916427A
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims description 9
- 238000004891 communication Methods 0.000 claims abstract description 61
- 238000012545 processing Methods 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 67
- 238000000034 method Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The utility model provides a pressure detection device based on NB-IoT technique, including pressure sensor module, NB-IoT communication module, SIM card module, power module and antenna module; the communication module is respectively and electrically connected with the NB-IoT communication module and the pressure sensor module, and the NB-IoT communication module is also respectively and electrically connected with the SIM card module and the antenna module; the power supply module is electrically connected with the NB-IoT communication module; the pressure sensor module is used for reading a pressure signal of the pressure sensor; and the NB-IoT communication module is used for processing the received pressure signal and transmitting the processed pressure signal to the cloud platform server through the antenna module. The received processed pressure data can be transmitted to the cloud platform in real time, the detected pressure value can be received in real time, and faults can be timely eliminated and prevented after the pressure value is found to be abnormal in time.
Description
Technical Field
The disclosure belongs to the technical field of pressure sensors, and particularly relates to a pressure detection device based on an NB-IoT technology.
Background
Pressure is one of the most basic parameters for measurement and control in production processes and scientific experiments, and a pressure sensor for measuring pressure and converting the pressure into an electric signal becomes an important component for measuring the signal.
The reliability of the pressure data is very important and it directly affects the quality and the speed of progress of production and construction and even brings about serious personal safety problems. During the use of the sensor, the reliability concept can be regarded as non-failure, i.e. as the performance summary of the service indicators that guarantee the limits required by the technical conditions.
When detecting pressure, the accuracy and the waterproof nature of pressing down the use of pressure-sensitive sensor are crucial, if the pressure detector is unqualified, will lead to the product to recall and examine entirely, extravagant a large amount of manpower and materials have increased manufacturing cost.
Disclosure of Invention
The present disclosure is directed to solve at least one of the technical problems of the related art and to provide a NB-IoT technology-based pressure detection apparatus.
The utility model provides a pressure detection device based on NB-IoT technique, including pressure sensor module, NB-IoT communication module, IIC communication module, M2M _ SIM card module, power module and antenna module;
the IIC communication module is electrically connected with the NB-IoT communication module and the pressure sensor module respectively, and the NB-IoT communication module is also electrically connected with the M2M _ SIM card module and the antenna module respectively; the power supply module is electrically connected with the NB-IoT communication module;
the pressure sensor module is used for reading a pressure signal of a pressure sensor and transmitting the pressure signal to the NB-IoT communication module through the IIC communication module;
the NB-IoT communication module is used for processing the received pressure signal and transmitting the processed pressure signal to a cloud platform server through the antenna module.
In some embodiments, the IIC communication module includes a clock signal line, a data signal line, a first pull-up resistor, a second pull-up resistor, a third pull-up resistor, and a fourth pull-up resistor;
a first end of the clock signal wire is electrically connected with a first pin of the pressure sensor module, and a second end of the clock signal wire is electrically connected with a first pin of the NB-IoT communication module;
a first end of the data signal wire is electrically connected with a second pin of the pressure sensor module, and a second end of the data signal wire is electrically connected with a second pin of the NB-IoT communication module;
first ends of the first pull-up resistor and the third pull-up resistor are electrically connected with the clock signal line, and first ends of the second pull-up resistor and the fourth pull-up resistor are electrically connected with the data signal line;
and second ends of the first pull-up resistor, the second pull-up resistor, the third pull-up resistor and the fourth pull-up resistor are electrically connected with a second pin of the NB-IoT communication module.
In some embodiments, the IIC communication module further comprises a first electrostatic protection diode and a second electrostatic protection diode;
the first ends of the first electrostatic protection diode and the second electrostatic protection diode are electrically connected with a grounding end;
the second end of the first electrostatic protection diode is electrically connected with the clock signal line, and the second end of the second electrostatic protection diode is electrically connected with the data signal line.
In some embodiments, the IIC communication module further comprises a first filter capacitor;
the first end of the first filter capacitor is electrically connected with a grounding end, and the second end of the first filter capacitor is electrically connected with the third pin of the pressure sensor module.
In some embodiments, the power supply module includes a power supply interface, a second filter capacitor, a third filter capacitor, and a third electrostatic protection diode;
the second filter capacitor, the third filter capacitor, the first end of the third electrostatic protection diode and the first pin of the power supply interface are all electrically connected with a ground terminal;
and second ends of the second filter capacitor, the third filter capacitor and the third electrostatic protection diode are respectively and electrically connected with a second pin of the power supply interface and a third pin of the NB-IoT communication module.
In some embodiments, the power module further comprises a power indication diode and a protection resistor;
the first end of the power supply indicating diode is electrically connected with the second pin of the power supply interface, the second end of the power supply indicating diode is electrically connected with the first end of the protection resistor, and the second end of the protection resistor is electrically connected with the grounding end.
In some embodiments, the M2M _ SIM card module includes an M2M _ SIM card circuit, a fourth filter capacitor, a fifth filter capacitor, a sixth filter capacitor, and a seventh filter capacitor;
first ends of the fourth filter capacitor, the fifth filter capacitor, the sixth filter capacitor and the seventh filter capacitor are respectively and electrically connected with corresponding pins in the M2M _ SIM card circuit;
second ends of the fourth filter capacitor, the fifth filter capacitor, the sixth filter capacitor and the seventh filter capacitor are all electrically connected with a ground terminal.
In some embodiments, the antenna module includes an antenna interface, the first pin and the third pin of the antenna interface are both electrically connected to ground, and the second pin of the antenna interface is electrically connected to the fourth pin of the NB-IoT communication module.
According to the pressure detection device based on the NB-IoT technology, the pressure sensor module is used for reading the pressure signal of the pressure sensor and transmitting the signal to the NB-IoT communication module, the pressure data is processed through the NB-IoT communication module, the received processed pressure data can be transmitted to the cloud platform in real time through signal transmission of the antenna module and uploaded to the server, the detected pressure value can be received in real time, and after the pressure value is found to be abnormal in time, faults can be checked in time, and the faults are prevented from occurring. The accuracy range is +/-1 Pa; the product is firm and durable, and a convenient and efficient solution is provided.
Drawings
Fig. 1 is a schematic structural diagram of a NB-IoT technology-based pressure detection apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic circuit diagram of a NB-IoT technology-based pressure detection apparatus according to another embodiment of the present disclosure.
Detailed Description
For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the embodiment of the present disclosure relates to a pressure detection apparatus 100 based on NB-IoT technology, which includes a pressure sensor module 110, an NB-IoT communication module 120, an IIC communication module 130, an M2M _ SIM card module 140, a power supply module 150, and an antenna module 160. The IIC communication module 130 is electrically connected to the NB-IoT communication module 120 and the pressure sensor module 110, respectively, and the NB-IoT communication module 120 is further electrically connected to the M2M _ SIM card module 140 and the antenna module 160, respectively. The power supply module 150 is electrically connected to the NB-IoT communication module 120.
Specifically, as shown in fig. 1, the pressure sensor module 110 is configured to read a pressure signal of a pressure sensor and transmit the pressure signal to the NB-IoT communication module 120 through the IIC communication module 130. The NB-IoT communication module 120 is configured to process the received pressure signal, and transmit the processed pressure signal to a cloud platform server through the antenna module 160.
The pressure detection device disclosed by the invention reads the pressure signal of the pressure sensor through the pressure sensor module and transmits the signal to the NB-IoT communication module, the pressure data is processed through the NB-IoT communication module, the received processed pressure data can be transmitted to the cloud platform in real time through the signal transmission of the antenna module and uploaded to the server, the detected pressure value can be received in real time, and after the abnormality of the pressure value can be found in time,
and faults are checked in time to prevent faults. The accuracy range is +/-1 Pa; the product is firm and durable, and a convenient and efficient solution is provided.
Illustratively, as shown in fig. 1 and 2, the IIC communication module 130 includes a clock signal line SCL, a data signal line SDA, a first pull-up resistor R1, a second pull-up resistor R2, a third pull-up resistor R3, and a fourth pull-up resistor R4. A first end of the clock signal line SCL is electrically connected to the first pin of the pressure sensor module 110, and a second end of the clock signal line SCL is electrically connected to the first pin of the NB-IoT communication module 120. A first end of the data signal line SDA is electrically connected to the second pin of the pressure sensor module 110, and a second end of the data signal line SDA is electrically connected to the second pin of the NB-IoT communication module 120.
As shown in fig. 2, first ends of the first pull-up resistor R1 and the third pull-up resistor R3 are electrically connected to the clock signal line SCL, and first ends of the second pull-up resistor R2 and the fourth pull-up resistor R4 are electrically connected to the data signal line SDA. Second ends of the first pull-up resistor R1, the second pull-up resistor R2, the third pull-up resistor R3, and the fourth pull-up resistor R4 are electrically connected to the second pin of the NB-IoT communication module 120.
Illustratively, as shown in fig. 1 and 2, the IIC communication module 130 further includes a first electrostatic protection diode D1 and a second electrostatic protection diode D2. The first ends of the first esd protection diode D1 and the second esd protection diode D2 are electrically connected to the ground GND. A second terminal of the first electrostatic protection diode D1 is electrically connected to the clock signal line SCL, and a second terminal of the second electrostatic protection diode D2 is electrically connected to the data signal line SDA.
The pressure detection device of the embodiment can effectively protect the pressure sensor module through the first electrostatic protection diode and the second electrostatic protection diode, can protect a circuit from being damaged by lightning stroke, electrostatic discharge and other rapid transient voltages, and can avoid the circuit from being influenced by static electricity.
Illustratively, as shown in fig. 2, the IIC communication module 130 further includes a first filter capacitor C1. A first end of the first filter capacitor C1 is electrically connected to a ground GND, and a second end of the first filter capacitor C1 is electrically connected to the third pin of the pressure sensor module 110.
The pressure detection device of this embodiment through the first filter capacitor that sets up, can carry out the filtering action to the pressure signal that the pressure sensor module exported, gets rid of the clutter composition in the pressure signal, prevents the clutter in the pressure signal, influences signal acquisition and transmission, the inaccurate phenomenon of pressure acquisition appears.
Illustratively, as shown in fig. 1 and 2, the power supply module 150 includes a power supply interface J1, a second filter capacitor C2, a third filter capacitor C3, and a third electrostatic protection diode D3. The second filter capacitor C2, the third filter capacitor C3, and the first end of the third esd protection diode D3, and the first pin of the power supply interface J1 are all electrically connected to a ground GND. Second ends of the second filter capacitor C2, the third filter capacitor C3, and the third esd protection diode D3 are electrically connected to the second pin of the power supply interface J1 and the third pin of the NB-IoT communication module 120, respectively.
The pressure detection device of this embodiment through second filter capacitor and the third filter capacitor that sets up, can carry out the filtering action to supply circuit, gets rid of the clutter composition among the power supply circuit, and smooth pulsation direct current voltage prevents the clutter among the power supply circuit, influences signal acquisition and transmission, appears the inaccurate phenomenon of pressure acquisition. In addition, the third electrostatic protection diode is arranged to perform electrostatic protection on the circuit, so that the circuit can be protected from being damaged by rapid transient voltage such as lightning stroke, electrostatic discharge and the like. The circuit is prevented from being affected by static electricity.
Illustratively, as shown in fig. 1, the power supply module 150 further includes a power indicator diode D4 and a protection resistor R5. The first end of the power indication diode D4 is electrically connected to the second pin of the power supply interface J1, the second end of the power indication diode D4 is electrically connected to the first end of the protection resistor R5, and the second end of the protection resistor R5 is electrically connected to the ground GND.
The pressure detection device of the embodiment can indicate the power supply signal output by the power supply circuit through the arranged power supply indicating diode, and can play a role in reducing voltage and limiting current for the output voltage of the power supply module through the arranged protective resistor.
Illustratively, as shown in fig. 1 and 2, the M2M _ SIM card module 140 includes an M2M _ SIM card circuit, a fourth filter capacitor C4, a fifth filter capacitor C5, a sixth filter capacitor C6 and a seventh filter capacitor C7. First ends of the fourth filter capacitor C4, the fifth filter capacitor C5, the sixth filter capacitor C6 and the seventh filter capacitor C7 are electrically connected to corresponding pins of the M2M _ SIM card circuit, respectively. Second ends of the fourth filter capacitor C4, the fifth filter capacitor C5, the sixth filter capacitor C6 and the seventh filter capacitor C7 are all electrically connected to a ground GND.
In the pressure detection apparatus of this embodiment, the M2M _ SIM card module may be inserted into the M2M _ SIM card for interconnection with the network of the cloud platform. Through each filter capacitor, external interference information can be filtered away, external interference is eliminated, and signal transmission accuracy is improved.
Illustratively, as shown in fig. 1 and 2, the antenna module 160 includes an antenna interface RF1, the first pin and the third pin of the antenna interface RF1 are both electrically connected to the ground GND, and the second pin of the antenna interface RF1 is electrically connected to the fourth pin of the NB-IoT communication module 120.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (8)
1. A pressure detection device based on NB-IoT technology is characterized by comprising a pressure sensor module, an NB-IoT communication module, an IIC communication module, an M2M _ SIM card module, a power supply module and an antenna module;
the IIC communication module is electrically connected with the NB-IoT communication module and the pressure sensor module respectively, and the NB-IoT communication module is also electrically connected with the M2M _ SIM card module and the antenna module respectively; the power supply module is electrically connected with the NB-IoT communication module;
the pressure sensor module is used for reading a pressure signal of a pressure sensor and transmitting the pressure signal to the NB-IoT communication module through the IIC communication module;
the NB-IoT communication module is used for processing the received pressure signal and transmitting the processed pressure signal to a cloud platform server through the antenna module.
2. The pressure detection device of claim 1, wherein the IIC communication module comprises a clock signal line, a data signal line, a first pull-up resistor, a second pull-up resistor, a third pull-up resistor, and a fourth pull-up resistor;
a first end of the clock signal wire is electrically connected with a first pin of the pressure sensor module, and a second end of the clock signal wire is electrically connected with a first pin of the NB-IoT communication module;
a first end of the data signal wire is electrically connected with a second pin of the pressure sensor module, and a second end of the data signal wire is electrically connected with a second pin of the NB-IoT communication module;
first ends of the first pull-up resistor and the third pull-up resistor are electrically connected with the clock signal line, and first ends of the second pull-up resistor and the fourth pull-up resistor are electrically connected with the data signal line;
and second ends of the first pull-up resistor, the second pull-up resistor, the third pull-up resistor and the fourth pull-up resistor are electrically connected with a second pin of the NB-IoT communication module.
3. The pressure sensing device of claim 2, wherein the IIC communication module further comprises a first electrostatic protection diode and a second electrostatic protection diode;
the first ends of the first electrostatic protection diode and the second electrostatic protection diode are electrically connected with a grounding end;
the second end of the first electrostatic protection diode is electrically connected with the clock signal line, and the second end of the second electrostatic protection diode is electrically connected with the data signal line.
4. The pressure sensing device of claim 2, wherein the IIC communication module further comprises a first filter capacitor;
the first end of the first filter capacitor is electrically connected with a grounding end, and the second end of the first filter capacitor is electrically connected with the third pin of the pressure sensor module.
5. The pressure detection device of claim 1, wherein the power supply module comprises a power supply interface, a second filter capacitor, a third filter capacitor, and a third electrostatic protection diode;
the second filter capacitor, the third filter capacitor, the first end of the third electrostatic protection diode and the first pin of the power supply interface are all electrically connected with a ground terminal;
and second ends of the second filter capacitor, the third filter capacitor and the third electrostatic protection diode are respectively and electrically connected with a second pin of the power supply interface and a third pin of the NB-IoT communication module.
6. The pressure detection device of claim 5, wherein the power module further comprises a power indicator diode and a protection resistor;
the first end of the power supply indicating diode is electrically connected with the second pin of the power supply interface, the second end of the power supply indicating diode is electrically connected with the first end of the protection resistor, and the second end of the protection resistor is electrically connected with the grounding end.
7. The pressure sensing device of claim 1, wherein the M2M _ SIM card module comprises an M2M _ SIM card circuit, a fourth filter capacitor, a fifth filter capacitor, a sixth filter capacitor, and a seventh filter capacitor;
first ends of the fourth filter capacitor, the fifth filter capacitor, the sixth filter capacitor and the seventh filter capacitor are respectively and electrically connected with corresponding pins in the M2M _ SIM card circuit;
second ends of the fourth filter capacitor, the fifth filter capacitor, the sixth filter capacitor and the seventh filter capacitor are all electrically connected with a ground terminal.
8. The pressure detection device of any of claims 1-7, wherein the antenna module comprises an antenna interface, wherein the first pin and the third pin of the antenna interface are both electrically connected to ground, and the second pin of the antenna interface is electrically connected to the fourth pin of the NB-IoT communication module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111097954.5A CN113916427A (en) | 2021-09-18 | 2021-09-18 | Pressure detection device based on NB-IoT technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111097954.5A CN113916427A (en) | 2021-09-18 | 2021-09-18 | Pressure detection device based on NB-IoT technology |
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