CN214311428U - Signal conversion device and signal processing system - Google Patents
Signal conversion device and signal processing system Download PDFInfo
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- CN214311428U CN214311428U CN202120814316.XU CN202120814316U CN214311428U CN 214311428 U CN214311428 U CN 214311428U CN 202120814316 U CN202120814316 U CN 202120814316U CN 214311428 U CN214311428 U CN 214311428U
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Abstract
The application discloses a signal conversion device and a signal processing system, wherein the signal conversion device comprises a signal input module, a signal conversion module and a wireless transmitting module; the wired signals which can be switched in can be converted into corresponding wireless signals sequentially through the signal input module, the signal conversion module and the wireless transmitting module, so that the wireless transmission of the signals is facilitated, and the technical problems of high use cost and complex construction and maintenance caused by the wired transmission are further solved; meanwhile, the signal input module can receive voltage input signals, current input signals and input signals in a wide range, and the applicability is wide.
Description
Technical Field
The present application relates to the field of signal conversion technologies, and in particular, to a signal conversion device and a signal processing system.
Background
In the industrial field, most DCS (Distributed Control System) or SCADA (Supervisory Control And Data Acquisition) systems need to receive various detection signals detected by detection equipment, And the various detection signals output by the detection equipment can be transmitted to the DCS or SCADA System through signal lines.
However, this method of transmission through signal lines firstly needs to bear the cost of wired cables, then needs to arrange the wiring of these signal lines reasonably, and finally, during the use, these signal lines need to be detected and maintained regularly, especially in a severe environment, and the frequency of detection and maintenance is higher. And the detection signal is susceptible to loss in long-distance wired transmission. In view of the above, there is a need to provide a conversion device capable of converting a wired signal into a wireless signal, so as to alleviate the disadvantages of the wired transmission method, such as high use cost and complicated construction and maintenance process.
It should be noted that the above description of the background art is only for the convenience of clear and complete understanding of the technical solutions of the present application. The technical solutions referred to above are therefore not considered to be known to the person skilled in the art, merely because they appear in the background of the present application.
Disclosure of Invention
The application provides a signal conversion device and a signal processing system to alleviate the technical problems of high use cost and complex construction maintenance caused by wired transmission.
In a first aspect, the present application provides a signal conversion apparatus, which includes a signal input module, a signal conversion module, and a wireless transmission module; the signal input module is used for outputting a corresponding analog signal according to an accessed voltage input signal or current input signal; the signal conversion module is connected with the signal input module and is used for converting the analog signals into corresponding digital signals; the wireless transmitting module is connected with the signal conversion module and used for generating corresponding wireless signals according to the digital signals.
In one embodiment, the signal input module comprises a voltage input circuit and a current input circuit; the voltage input circuit is connected with the signal conversion module and used for outputting a corresponding analog voltage signal to the signal conversion module according to the accessed voltage input signal; the current input circuit is connected with the signal conversion module and used for outputting a corresponding analog voltage signal to the signal conversion module according to the accessed current input signal; the voltage input circuit and the current input circuit work in a time-sharing mode.
In one embodiment, the voltage input circuit includes a first resistor and a second resistor; the first end of the first resistor and the second end of the second resistor are both used for accessing a voltage input signal, and the second end of the second resistor is grounded; the second end of the first resistor is connected with the first end of the second resistor and the first input end of the signal conversion module; the resistance value of the first resistor is equal to that of the second resistor.
In one embodiment, the voltage range of the voltage input signal is greater than or equal to 0V and less than or equal to 10V.
In one embodiment, the current input circuit includes a third resistor; the first end of the third resistor and the second end of the third resistor are both used for accessing a current input signal, and the first end of the third resistor is connected with the first input end of the signal conversion module; and the second end of the third resistor is connected with the second input end of the signal conversion module and is grounded.
In one embodiment, the third resistor has a resistance of 250 Ω; the current range of the current input signal is greater than or equal to 4mA and less than or equal to 20 mA.
In one embodiment, the signal conversion module is an Arduino Uno module; the Arduino Uno module comprises at least one analog-to-digital converter; the output end of the signal input module is connected with the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected with the input end of the wireless transmitting module.
In one embodiment, the wireless transmission module is model number ESP 8266; the wireless transmitting module comprises a work enabling pin, and when the work enabling pin is at a high potential, the wireless transmitting module is in a working state; and when the work enabling pin is at a low potential, the power supply of the wireless transmitting module is stopped.
In one embodiment, the signal conversion device further comprises a power module and a voltage dividing resistor; the power supply module is connected with the signal conversion module and the wireless transmitting module; a positive power supply end of the signal conversion module is connected with a first end of the divider resistor; and the second end of the divider resistor is connected with the work enabling pin of the wireless transmitting module.
In a second aspect, the present application provides a signal processing system, which includes the signal conversion apparatus and the cloud server in any of the above embodiments; the cloud server is wirelessly connected with the signal conversion device and used for executing at least one of receiving, online recording and analyzing of wireless signals.
According to the signal conversion device and the signal processing system, the accessed wired signals can be converted into corresponding wireless signals sequentially through the signal input module, the signal conversion module and the wireless transmitting module, wireless transmission of the signals is facilitated, and the technical problems of high use cost and complex construction and maintenance caused by the fact that wired transmission is easy to cause are solved; meanwhile, the signal input module can receive voltage input signals, current input signals and input signals in a wide range, and the applicability is wide.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic view of a first structure of a signal conversion apparatus according to an embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a second structure of a signal conversion apparatus according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a third signal conversion apparatus according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a signal processing system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
Referring to fig. 1 to 4, as shown in fig. 1 and 2, the present embodiment provides a signal conversion apparatus 100, which includes a signal input module 10, a signal conversion module 20, and a wireless transmission module 30; the signal input module 10 is configured to output a corresponding analog signal according to an accessed voltage input signal VS or a current input signal AS; the signal conversion module 20 is connected to the signal input module 10 and is configured to convert the analog signal into a corresponding digital signal; the wireless transmitting module 30 is connected to the signal converting module 20, and is configured to generate a corresponding wireless signal according to the digital signal.
It can be understood that, the signal conversion apparatus 100 provided in this embodiment may convert the accessed wired signal into a corresponding wireless signal sequentially through the signal input module 10, the signal conversion module 20, and the wireless transmission module 30, which is beneficial to implementing wireless transmission of the signal, and further alleviates the technical problems of high use cost and complex construction and maintenance easily caused by wired transmission; meanwhile, the signal input module 10 can receive both the voltage input signal VS and the current input signal AS, can receive input signals in a wide range, and has wide applicability.
The voltage range of the analog signal is greater than or equal to 0V and less than or equal to 5V. The voltage range of the analog signal is the acceptable signal voltage input range of the signal conversion module 20.
As shown in fig. 2, in one embodiment, the signal input module 10 includes a voltage input circuit 11 and a current input circuit 12; the voltage input circuit 11 is connected to the signal conversion module 20, and is configured to output a corresponding analog voltage signal to the signal conversion module 20 according to the accessed voltage input signal VS; the current input circuit 12 is connected to the signal conversion module 20, and is configured to output a corresponding analog voltage signal to the signal conversion module 20 according to the accessed current input signal AS; the voltage input circuit 11 and the current input circuit 12 operate in a time-sharing manner.
In one embodiment, the voltage input circuit 11 includes a first resistor R1 and a second resistor R2; the first end of the first resistor R1 and the second end of the second resistor R2 are both used for receiving a voltage input signal VS, and the second end of the second resistor R2 is grounded; the second end of the first resistor R1 is connected to the first end of the second resistor R2 and the first input end of the signal conversion module 20; the resistance of the first resistor R1 is equal to the resistance of the second resistor R2.
Both the resistance of the first resistor R1 and the resistance of the second resistor R2 can be 1K Ω.
In one embodiment, the voltage range of the voltage input signal VS is greater than or equal to 0V and less than or equal to 10V.
In one embodiment, the current input circuit 12 includes a third resistor R3; a first end of the third resistor R3 and a second end of the third resistor R3 are both used for accessing the current input signal AS, and a first end of the third resistor R3 is connected to the first input end of the signal conversion module 20; a second terminal of the third resistor R3 is connected to a second input terminal of the signal conversion module 20 and is connected to ground.
In one embodiment, the third resistor R3 has a resistance of 250 Ω; the current range of the current input signal AS is greater than or equal to 4mA and less than or equal to 20 mA.
In one embodiment, the signal conversion module 20 is an Arduino Uno module; the Arduino Uno module comprises at least one analog-to-digital converter; the output end of the signal input module 10 is connected with the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected with the input end of the wireless transmitting module 30.
It should be noted that the Arduino Uno module may be but not limited to an open source data development board for Arduino Uno, and has low cost, convenient development and good expandability, and can convert an input analog voltage signal into a digital signal, and then can be programmed by a corresponding program or directly output to the wireless transmitting unit. It can be understood that the Arduino Uno module may perform corresponding modulation on the digital signal through a corresponding program according to individual requirements, so as to implement different wireless signals as required.
In one embodiment, wireless transmission module 30 is model number ESP 8266; the wireless transmitting module 30 comprises a work enabling pin, and when the work enabling pin is at a high potential, the wireless transmitting module 30 is in a working state; when the operation enable pin is at a low potential, the wireless transmitting module 30 stops supplying power.
It should be noted that the ESP8266 type wireless transmission module 30 can support 2.4G spectrum wireless transmission. The embedded software can be internally provided with a Tensilica L10632-bit RISC processor (CPU), the clock speed of the CPU can reach 160MHz at most, a real-time operating system (RTOS) and a Wi-Fi protocol stack are supported, and 80% of processing capacity can be reserved for application programming and development. The wireless transmitting module 30 of the ESP8266 type can be applied to mobile devices, wearable electronic products and internet of things, and is beneficial to realizing ultra-low power consumption. The power saving mode of the ESP8266 type wireless transmission module 30 can be applied to various low power consumption application scenarios; and the performance is stable, the working temperature range is large, the stable performance can be kept, and the device is suitable for various operating environments.
In one embodiment, the wireless transmitting module 30 can transmit or communicate signals with the signal conversion module 20 through an I2C serial transmission line.
As shown in fig. 3, in one embodiment, the signal conversion apparatus 100 further includes a power module 40 and a voltage dividing resistor R4; the power supply module 40 is connected with the signal conversion module 20 and the wireless transmission module 30; the positive power supply end of the signal conversion module 20 is connected with the first end of the voltage dividing resistor R4; the second end of the voltage dividing resistor R4 is connected to the operation enable pin of the wireless transmission module 30.
The range of the dc voltage output by the power module 40 may be greater than or equal to 3.3V and less than or equal to 5.0V. The power module 40 may be a rechargeable button cell, which is convenient to install and charge. The power module 40 may also be a mobile power supply.
In one embodiment, the divider resistor R4 has a resistance of 1.1K Ω.
As shown in fig. 4, in one embodiment, the present embodiment provides a signal processing system, which includes the signal conversion apparatus 100 and the cloud server 200 in any of the above embodiments; the cloud server 200 is wirelessly connected to the signal conversion apparatus 100, and is configured to perform at least one of receiving, online recording, and analyzing of a wireless signal.
It can be understood that, the signal processing system provided in this embodiment may convert the accessed wired signal into a corresponding wireless signal sequentially through the signal input module 10, the signal conversion module 20, and the wireless transmission module 30, which is beneficial to implementing wireless transmission of the signal, and further alleviates the technical problems of high use cost and complex construction and maintenance easily caused by wired transmission; meanwhile, the signal input module 10 can receive both the voltage input signal VS and the current input signal AS, can receive input signals in a wide range, and has wide applicability.
It should be noted that the wireless transmitting module 30 may preset a signal name of the wireless network, a login password of the wireless network, and an IP address of the cloud server 200. It is understood that the wireless transmitting module 30 transmits a wireless signal to the wireless network through a preset signal name and a login password of the wireless network, and then may transmit the wireless signal to the preset cloud server 200 according to the IP address of the cloud server 200. The wireless signal can be presented in the cloud server 200 in various data forms such as a table, a curve and the like, and the understanding and the analysis are easy.
As shown in fig. 4, in one embodiment, the signal processing system may further include a detection device 300, and an output terminal of the detection device 300 is connected to an input terminal of the signal input module 10. The detection apparatus 300 may acquire at least one of physical quantities such as temperature, water level, weight, voltage, and current of different detection objects.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The signal conversion device and the signal processing system provided in the embodiments of the present application are described in detail above, and specific examples are applied in this document to explain the principles and embodiments of the present application, and the description of the embodiments above is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A signal conversion apparatus, comprising:
the signal input module is used for outputting a corresponding analog signal according to an accessed voltage input signal or current input signal;
the signal conversion module is connected with the signal input module and is used for converting the analog signals into corresponding digital signals; and
and the wireless transmitting module is connected with the signal conversion module and is used for generating a corresponding wireless signal according to the digital signal.
2. The signal conversion apparatus of claim 1, wherein the signal input module comprises:
the voltage input circuit is connected with the signal conversion module and used for outputting a corresponding analog voltage signal to the signal conversion module according to the accessed voltage input signal; and
the current input circuit is connected with the signal conversion module and used for outputting a corresponding analog voltage signal to the signal conversion module according to the accessed current input signal;
the voltage input circuit and the current input circuit work in a time-sharing mode.
3. The signal conversion apparatus of claim 2, wherein the voltage input circuit comprises a first resistor and a second resistor;
the first end of the first resistor and the second end of the second resistor are both used for accessing the voltage input signal, and the second end of the second resistor is grounded; the second end of the first resistor is connected with the first end of the second resistor and the first input end of the signal conversion module;
and the resistance value of the first resistor is equal to that of the second resistor.
4. The signal conversion device according to claim 3, wherein the voltage range of the voltage input signal is greater than or equal to 0V and less than or equal to 10V.
5. The signal conversion apparatus of claim 2, wherein the current input circuit comprises a third resistor;
the first end of the third resistor and the second end of the third resistor are both used for accessing the current input signal, and the first end of the third resistor is connected with the first input end of the signal conversion module; and the second end of the third resistor is connected with the second input end of the signal conversion module and is grounded.
6. The signal conversion device according to claim 5, wherein the third resistor has a resistance of 250 Ω; the current range of the current input signal is greater than or equal to 4mA and less than or equal to 20 mA.
7. The signal conversion apparatus of claim 1, wherein the signal conversion module is an Arduino Uno module; the Arduino Uno module comprises at least one analog-to-digital converter; the output end of the signal input module is connected with the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected with the input end of the wireless transmitting module.
8. The signal conversion device of claim 7, wherein the wireless transmission module is model number ESP 8266; the wireless transmitting module comprises a work enabling pin, and when the work enabling pin is at a high potential, the wireless transmitting module is in a working state; and when the work enabling pin is at a low potential, the wireless transmitting module stops supplying power.
9. The signal conversion device according to claim 8, further comprising a power supply module and a voltage dividing resistor;
the power supply module is connected with the signal conversion module and the wireless transmission module; a positive power supply end of the signal conversion module is connected with a first end of the divider resistor; and the second end of the divider resistor is connected with a work enabling pin of the wireless transmitting module.
10. A signal processing system, comprising:
the signal conversion device of any one of claims 1 to 9; and
and the cloud server is wirelessly connected with the signal conversion device and is used for executing at least one of receiving, online recording and analyzing of the wireless signal.
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| CN202120814316.XU CN214311428U (en) | 2021-04-20 | 2021-04-20 | Signal conversion device and signal processing system |
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| CN202120814316.XU CN214311428U (en) | 2021-04-20 | 2021-04-20 | Signal conversion device and signal processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116434502A (en) * | 2023-05-25 | 2023-07-14 | 中南大学 | Automobile alarm device containing sound absorption piezoelectric aerogel and automobile alarm method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116434502A (en) * | 2023-05-25 | 2023-07-14 | 中南大学 | Automobile alarm device containing sound absorption piezoelectric aerogel and automobile alarm method |
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