CN113091823A - Flexible sensor system based on cloud computing platform - Google Patents
Flexible sensor system based on cloud computing platform Download PDFInfo
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- CN113091823A CN113091823A CN202110397264.5A CN202110397264A CN113091823A CN 113091823 A CN113091823 A CN 113091823A CN 202110397264 A CN202110397264 A CN 202110397264A CN 113091823 A CN113091823 A CN 113091823A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
Abstract
The invention belongs to the technical field of sensors, and particularly relates to a flexible sensor system based on a cloud computing platform. The system of the invention comprises: the device comprises a flexible substrate, a temperature sensor, a humidity sensor, a pressure sensor, a light sensor, an acoustic sensor, a solar thin film battery, a signal processor and a wireless communicator; the various sensors are thin film sensors; various thin film sensors, solar cells, a signal processor and a wireless communicator are integrated on a flexible substrate in a pasting or printing mode and are connected through interconnection lines; according to the invention, the advantages of lightness, dexterity and strong fitting property of the flexible substrate are utilized, the thin film sensors with different functions are integrated into a whole, and the thin film solar cell with the self-powered characteristic is utilized to realize the capability of automatically acquiring, acquiring and processing big data in different fields such as human body detection, environment monitoring and the like.
Description
Technical Field
The invention belongs to the technical field of sensors, and particularly relates to a flexible sensor system.
Background
As the living standard of people is continuously improved, people are generally concerned about the change of various conditions, environments and places including the people, and expect to realize remote detection and control. However, the early sensing mode is single, the sensing coverage is narrow, the amount and reliability of transmitted data are insufficient, and a large amount of manual analysis and judgment are required. Meanwhile, most of sensors are not practical enough in certain specific environments, such as the sensors cannot be applied to the surface of cotton textiles, need extra power supply and have no autonomous monitoring and management capability. Therefore, under the circumstances, it is necessary to design a sensor system which can realize self power supply, multiple functions, multiple purposes, remote real-time data transmission and processing, active processing capability for complex and variable reality conditions, and wide application range.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a flexible sensor system which is self-powered, multifunctional, multipurpose and wide in application range.
The flexible sensor system provided by the invention is based on a cloud computing platform and specifically comprises a flexible substrate, a temperature sensor, a humidity sensor, a pressure sensor, a light sensor, an acoustic sensor, a solar thin film battery, a signal processor and a wireless communicator; the various sensors are film sensors; various thin film sensors, solar cells, a signal processor and a wireless communicator are integrated on a flexible substrate in a pasting or printing mode and are connected through interconnection lines; the signal processor comprises a filter circuit, a noise reduction circuit and an amplifying circuit; each sensor module is connected with a filter circuit, and external signals are analyzed and processed through a noise reduction and amplification circuit; and the cloud computing server is used for receiving the network data, performing statistical analysis according to the received data condition, comparing the statistical analysis with the existing data in the server, and analyzing the current condition, wherein if the current condition exceeds a certain threshold value, automatic alarm can be given. The structure schematic diagram is shown in figure 1. Wherein:
the flexible substrate is made of organic polymer materials, such as polyimide, silicon rubber, polyethylene terephthalate, parylene or silicon resin, and the thickness of the flexible substrate is 25-100 mu m;
the temperature sensor is a film type sensor, and the film material of the temperature sensor is one of platinum, silicon, SiC or diamond;
the humidity sensor is a thin film type sensor, and the thin film material is semiconductor material, such as ZnO and TiO2One of graphene, carbon nanotube, and the like;
the pressure sensor and the acoustic sensor are film type sensors, and the film material of the pressure sensor and the acoustic sensor is a piezoelectric material, such as one of PVDF, PZT, BST and the like;
the optical sensor is a thin film type sensor, and the thin film material of the optical sensor is a photosensitive material, such as one of Si, cadmium sulfide, lead sulfide and the like;
the solar thin film cell is made of one of CIGS, cadmium telluride, polycrystalline silicon and other thin films;
the signal processor comprises a filter circuit, a noise reduction circuit and an amplifying circuit; each sensor module is connected with a filter circuit, and external signals are analyzed and processed through a noise reduction and amplification circuit;
the wireless communicator can be one or more of Zigbee, GPRS, WiFi, LiFi and 3G/4G/5G, and has a storage function.
In the invention, when the external temperature, humidity, pressure, volume and illumination change, the corresponding film sensor converts the external signal into an electric signal, transmits the electric signal to a filter circuit, a noise reduction circuit and an amplifying circuit in a signal processor for signal processing, and finally automatically uploads the processed signal to a cloud server through a wireless communicator for further data integration, thereby finally obtaining the comprehensive sensing condition with large area and wide range.
According to the invention, the advantages of lightness, dexterity and strong fitting property of the flexible substrate are utilized, the thin film sensors with different functions are integrated into a whole, and the thin film solar cell with the self-powered characteristic is utilized to realize the capability of automatically acquiring, acquiring and processing big data in different fields such as human body detection, environment monitoring and the like.
The invention has the advantages that: based on a cloud computing platform, the sensor system is self-powered, multifunctional, multipurpose, capable of remotely transmitting and processing real-time data, capable of actively processing complex and changeable reality conditions and wide in application range.
Drawings
Fig. 1 is a structural diagram of a flexible sensor system based on a cloud computing platform according to the present invention.
Reference numbers in the figures: the system comprises a flexible substrate 1, a temperature sensor 2, a humidity sensor 3, a pressure sensor 4, a light sensor 5, an acoustic sensor 6, a solar thin film battery 7, a signal processor 8, a wireless communicator 9, a common metal electrode 10, temperature sensors 2, the humidity sensor 3, the pressure sensor 4, the light sensor 5 and the acoustic sensor 6 respectively 11, 12, 13, 14, 15 and 16, and a cloud computing server 17.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a flexible sensor system based on a cloud computing platform, which is composed of a flexible substrate 1, a temperature sensor 2, a humidity sensor 3, a pressure sensor 4, a light sensor 5, an acoustic sensor 6, a solar thin-film battery 7, a signal processor 8 and a wireless communicator 9, as shown in fig. 1.
The thin film sensor and the thin film battery can be prepared in an ink-jet printing mode, and the specific preparation process comprises the following steps:
(1) sampling a polyimide substrate, and performing argon ion pretreatment on the surface of the polyimide substrate to increase the surface adhesion;
(2) sampling of nano-materials, e.g. silicon nanoparticles, TiO, required for various thin-film sensors and solar cells2PVDF, CdS and CIGS, and dispersing and dissolving the PVDF, CdS and CIGS into an organic solvent such as hexanediol or ethanol by using an ultrasonic mode to form a stable dispersion liquid;
(3) sequentially printing silicon nanoparticles and TiO on different areas of a polyimide substrate by using an ink-jet printing technology2PVDF, CdS, CIGS and other materials, and then placing the substrate on a hot plate to heat and remove the solvent to form a film material;
(4) printing a common metal electrode 10 and respective output electrodes 11, 12, 13, 14, 15, 16 at two ends of the material;
(5) the signal processor and the wireless communicator both adopt ultra-low power consumption chips such as MSP430 and CC 2640; the signal processor is provided with a filter circuit, a noise reduction circuit and an amplifying circuit, and the output of various sensing signals is digital signals; the digital signal is uploaded to the cloud computing server 17 through the wireless communicator; the cloud computing server is used for receiving the network data, performing statistical analysis according to the received data condition, comparing the statistical analysis with the existing data in the server, analyzing the current condition, and giving an automatic alarm if the current condition exceeds a certain threshold value.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. A flexible sensor system based on a cloud computing platform is characterized in that: the device comprises a flexible substrate, a temperature sensor, a humidity sensor, a pressure sensor, a light sensor, an acoustic sensor, a solar thin film battery, a signal processor and a wireless communicator; the various sensors are film sensors; various thin film sensors, solar cells, a signal processor and a wireless communicator are integrated on a flexible substrate in a pasting or printing mode and are connected through interconnection lines; the signal processor comprises a filter circuit, a noise reduction circuit and an amplifying circuit; each sensor module is connected with a filter circuit, and external signals are analyzed and processed through a noise reduction and amplification circuit; the cloud computing server is used for receiving the network data, performing statistical analysis according to the received data condition, comparing the statistical analysis with the existing data in the server, and analyzing the current condition.
2. The flexible sensor system based on the cloud computing platform as claimed in claim 1, wherein the flexible substrate is an organic polymer material selected from polyimide, silicone rubber, polyethylene terephthalate, parylene or silicone resin, and has a thickness of 25 μm to 100 μm.
3. The cloud computing platform-based flexible sensor system of claim 1, wherein the thin film material of the temperature sensor is one of platinum, silicon, SiC, or diamond.
4. The flexible sensor system based on the cloud computing platform as claimed in claim 1, wherein the thin film material of the humidity sensor is a semiconductor material selected from ZnO and TiO2Graphene, and carbon nanotubes.
5. The flexible sensor system based on the cloud computing platform as claimed in claim 1, wherein the thin film material of the pressure sensor and the acoustic sensor is a piezoelectric material selected from one of PVDF, PZT, and BST.
6. The flexible sensor system based on the cloud computing platform as claimed in claim 1, wherein the thin film material of the optical sensor is a photosensitive material selected from one of Si, cadmium sulfide and lead sulfide.
7. The cloud computing platform-based flexible sensor system of claim 1, wherein the material of the solar thin film cell is selected from one of CIGS, cadmium telluride, and polycrystalline silicon thin film materials.
8. The flexible sensor system based on the cloud computing platform of claim 1, wherein the wireless communicator is one or more of Zigbee, GPRS, WiFi, LiFi and 3G/4G/5G, and the wireless communicator further has a storage function.
9. The flexible sensor system based on the cloud computing platform according to claim 1, wherein when external temperature, humidity, pressure, volume and illumination change, the corresponding thin film sensor converts external signals into electric signals, transmits the electric signals to a filter circuit, a noise reduction circuit and an amplification circuit in a signal processor for signal processing, and finally automatically uploads the processed signals to a cloud server through a wireless communicator for further data integration, so that comprehensive sensing conditions in a large area and a wide range are obtained.
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Cited By (1)
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| CN114295160A (en) * | 2021-12-27 | 2022-04-08 | 中国电子科技集团公司第十八研究所 | Flexible sensing array for monitoring multiple physical fields in lithium battery |
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Application publication date: 20210709 |