CN113542925A - Transmission system and transmission method for transmitter signal power information - Google Patents
Transmission system and transmission method for transmitter signal power information Download PDFInfo
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- CN113542925A CN113542925A CN202110683830.9A CN202110683830A CN113542925A CN 113542925 A CN113542925 A CN 113542925A CN 202110683830 A CN202110683830 A CN 202110683830A CN 113542925 A CN113542925 A CN 113542925A
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- 238000004891 communication Methods 0.000 claims abstract description 62
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- 230000008569 process Effects 0.000 claims abstract description 16
- 230000008054 signal transmission Effects 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000009467 reduction Effects 0.000 claims description 86
- 238000005070 sampling Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 7
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
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Abstract
The embodiment of the invention discloses a transmission system and a transmission method of transmitter signal power information, wherein the system comprises the following steps: the information acquisition and transmission module is used for supplying power to the transmitter circuit, converting a current signal output by the transmitter into a voltage signal and transmitting the voltage signal to the information collection and summary module in a power carrier communication mode; the information collecting and summarizing module is used for receiving the voltage signals output by the transmitters in the information collecting and transmitting module, collecting the data of the voltage signals and transmitting the data to a system management and maintenance terminal through a network signal transmission cable; and the system management maintenance terminal is used for receiving the summarized data sent by the information collection and summarization module and processing the summarized data. The method can realize that a special cable is not required to be laid, simplify the engineering implementation process and realize intelligent management and maintenance.
Description
Technical Field
The invention relates to the technical field of data transmission, in particular to a transmission system and a transmission method for signal power information of a transmitter.
Background
A transducer is a transducer that converts the output signal of a sensor into a signal that can be recognized by a controller (or a signal source that converts the non-electrical quantity input by the sensor into an electrical signal while amplifying it for remote measurement and control). The transmitter mainly comprises a pressure transmitter, a differential pressure transmitter, a liquid level transmitter, a temperature transmitter and the like, is mainly used for detecting information such as pressure, differential pressure, liquid level, temperature and the like, and transmits the detected information to the information collection terminal through a 4 mA-20 mA current signal.
In common industrial applications, transmitter information is generally transmitted by a dedicated cable through current or voltage (current is converted into voltage), so that transmission, collection and aggregation of multiple transmitter information are realized. However, in industrial application, a special cable is needed for transmission in the process of transmitting digital current/voltage by the transmitters, each transmitter needs one special cable, the number of the cables is large, the distance is long, the cost of the cable material is high, the construction process is complex, and the use and maintenance are complex.
Disclosure of Invention
The invention provides a transmission system and a transmission method of transmitter signal power information, which can realize that a special cable is not required to be laid, simplify the engineering implementation process and realize intelligent management and maintenance. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a transmission system for transmitter signal power information, including:
the information acquisition and transmission module is used for supplying power to the transmitter circuit, converting a current signal output by the transmitter into a voltage signal and transmitting the voltage signal to the information collection and summary module in a power carrier communication mode;
the information collecting and summarizing module is used for receiving the voltage signals output by the transmitters in the information collecting and transmitting module, collecting the data of the voltage signals and transmitting the data to a system management and maintenance terminal through a network signal transmission cable;
and the system management maintenance terminal is used for receiving the summarized data sent by the information collection and summarization module and processing the summarized data.
Optionally, the information acquisition and transmission module includes:
the first alternating current signal protection circuit comprises a piezoresistor and a fuse, and is used for instantly absorbing surge voltage at the input end of the alternating current power supply and releasing energy to the ground;
the alternating current-to-direct current circuit converts an alternating current power supply into direct current voltage;
the first switch voltage reduction circuit reduces the input converted direct-current voltage according to a first preset voltage reduction threshold value and outputs a low-ripple voltage for the transmitter to use;
the second switch voltage reduction circuit reduces the input converted direct-current voltage according to a second preset voltage reduction threshold value to output low-ripple voltage for the first linear voltage reduction circuit and the second linear voltage reduction circuit;
the first linear voltage reduction circuit linearly reduces the voltage reduced by the second switch voltage reduction circuit according to a third preset voltage reduction threshold value and outputs low ripple voltage to the power carrier communication circuit for use;
the second linear voltage reduction circuit linearly reduces the voltage reduced by the second switch voltage reduction circuit according to a fourth preset voltage reduction threshold value and outputs the voltage with low ripple waves to the microprocessor, the external circuit and the sampling circuit for use;
the sampling circuit is suitable for two-wire system and four-wire system modes;
and the microprocessor circuit is used for carrying out A/D conversion on the voltage signal acquired by the sampling circuit through the sensor, transmitting the voltage signal to the real-time information collection module through the power carrier communication circuit, and detecting and indicating the working state of the module.
Optionally, the information acquisition and transmission module further includes:
the power carrier communication circuit can support two frequency bands of 0.5 MHz-3.7 MHz and 2.5 MHz-5.7 MHz, can be configured through software and has FEC forward error correction and CRC check functions;
the operation indication light-emitting diode is controlled and displayed by the microprocessor, and can indicate the working states of the microprocessor and the module;
the program programming and software debugging interface can be used for carrying out software online debugging and programming a program file;
the test serial port is used for printing the working process of the processor and the working state of the module in real time;
the light-emitting diode driving circuit controls the light-emitting diode after driving the power carrier communication data signal;
the data communication indication light-emitting diode is driven by the light-emitting diode driving circuit to emit light, and can indicate the data communication state in real time.
Optionally, the method further includes:
the power carrier communication medium is used for transmitting voltage signals between the information acquisition and transmission module and the information collection and summary module, and is a 220V single-phase alternating-current power signal line, or is a 380V three-phase alternating-current power signal line;
the network signal transmission cable adopts a network cable with shielding, so that normal transmission of network signals is ensured, and meanwhile, the cable has certain capability of resisting radiation interference.
Optionally, the information collecting and summarizing module includes: the system comprises an alternating current signal protection circuit, an alternating current-to-direct current circuit, a second switch voltage reduction circuit, a first linear voltage reduction circuit, a second linear voltage reduction circuit, a light emitting diode driving circuit, a microprocessor circuit, a power carrier communication circuit, an operation indication light emitting diode, a program programming and software debugging interface test serial port and a light emitting diode driving circuit, wherein the light emitting diode driving circuit refers to a data communication indication light emitting diode.
Optionally, the information collecting and summarizing module further includes:
the Ethernet PHY chip is used for indicating a light-emitting diode for data communication, and the driving circuit is used for driving the light-emitting diode to emit light so as to indicate the data communication state in real time;
the network transformer is used for network signal transmission, impedance matching, waveform restoration, signal clutter suppression and high-voltage isolation.
In a second aspect, an embodiment of the present invention further provides a transmission method based on the first aspect, including:
after the information acquisition and transmission module converts the current signal output by the transmitter into a voltage signal, the voltage signal is transmitted to the information collection and summary module in a power carrier communication mode;
the information collecting and gathering module receives the voltage signals output by the transmitter in the information collecting and transmitting module, and the voltage signals are subjected to data gathering and then transmitted to a system management and maintenance terminal through a network signal transmission cable;
and receiving the summarized data sent by the information collection and summarization module based on the system management maintenance terminal, and processing the summarized data.
Optionally, before the information acquisition and transmission module converts the current signal output by the transmitter into a voltage signal, the method further includes:
the surge voltage at the input end of the alternating current power supply is instantly absorbed and the energy to the ground is released through the first alternating current signal protection circuit;
after converting the current signal output by the transmitter to a voltage signal, the method further comprises:
the input converted direct-current voltage is subjected to voltage reduction according to a first preset voltage reduction threshold value through a first switch voltage reduction circuit, and low-ripple voltage is output for the transmitter to use;
the second switch voltage reduction circuit is used for reducing the input converted direct-current voltage according to a second preset voltage reduction threshold value to output low-ripple voltage for the first linear voltage reduction circuit and the second linear voltage reduction circuit;
the voltage reduced by the second switch voltage reduction circuit is linearly reduced by a first linear voltage reduction circuit according to a third preset voltage reduction threshold value, and low ripple voltage is output to the power carrier communication circuit for use;
the voltage reduced by the second switch voltage reduction circuit is linearly reduced by a second linear voltage reduction circuit according to a fourth preset voltage reduction threshold value, and the low-ripple voltage is output to a microprocessor, an external circuit and a sampling circuit for use;
the microprocessor circuit is used for carrying out A/D conversion on the voltage signals acquired by the sampling circuit through the sensor, transmitting the voltage signals to the real-time information collection module through the power carrier communication circuit, and detecting and indicating the working state of the module.
Optionally, the method further includes:
and transmitting a voltage signal between the information acquisition and transmission module and the information collection and collection module through a power carrier communication medium, wherein the power carrier communication medium is a 220V single-phase alternating current power signal line, or the power carrier communication medium is a 380V three-phase alternating current power signal line.
As can be seen from the above, the transmission system and the transmission method for the transmitter signal power information provided in the embodiments of the present invention include: the information acquisition and transmission module is used for supplying power to the transmitter circuit, converting a current signal output by the transmitter into a voltage signal and transmitting the voltage signal to the information collection and summary module in a power carrier communication mode; the information collecting and summarizing module is used for receiving the voltage signals output by the transmitters in the information collecting and transmitting module, collecting the data of the voltage signals and transmitting the data to a system management and maintenance terminal through a network signal transmission cable; and the system management maintenance terminal is used for receiving the summarized data sent by the information collection and summarization module and processing the summarized data. The system and the method of the embodiment of the invention do not need to lay a special cable, simplify the engineering implementation process and realize intelligent management and maintenance.
The embodiment of the invention can be applied. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
The innovation points of the embodiment of the invention comprise:
the functions of power supply of a plurality of transmitter nodes, voltage conversion of current signals, power line information transmission, information collection and summarization and the like are realized. Special cables do not need to be laid, the engineering implementation process is simplified, and intelligent management and maintenance are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.
FIG. 1 is a schematic diagram of a transmission system for power information of a transmitter signal according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an information acquisition and transmission module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an information collecting and summarizing module according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method for transmitting power information of a transmitter signal according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of another method for transmitting power information of a transmitter signal according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It is to be noted that the terms "comprises" and "comprising" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
An embodiment of the present invention provides a transmission system for signal power information of a transmitter, as shown in fig. 1, including:
the information acquisition and transmission module 1 is used for supplying power to a transmitter circuit, converting a 4 mA-20 mA current signal output by the transmitter into a voltage signal, sampling the voltage signal through A/D (analog/digital) and transmitting the voltage signal to the information collection and summary module 2 in a power carrier communication mode;
the information collecting and summarizing module 2 is used for receiving the voltage signals output by the transmitter in the information collecting and transmitting module 1, collecting the data of the voltage signals and transmitting the data to the system management and maintenance terminal 3 through a network signal transmission cable 5; in the practical application process, one information collection and summary module 2 can be accessed into 200 information collection and transmission modules 1 at most, and when more information collection and transmission modules 1 need to be accessed, the information collection and summary module 2 can be added for expansion. The information collecting and summarizing module 2 receives sensor signals output by a plurality of transmitters through power line carrier communication, and transmits the sensor signals to the system management and maintenance terminal 3 after data summarization;
and the system management maintenance terminal 3 is used for receiving the summarized data sent by the information collection and summarization module 2 and processing the summarized data. The system management maintenance terminal 3 generally uses an industrial computer, and when a plurality of network ports of the information collection and summary module 2 need to be accessed, a network switch can be added, and the access quantity of the network ports can be expanded. The system of the embodiment of the invention does not need to lay a special cable, simplifies the engineering implementation process and realizes intelligent management and maintenance.
As an extension of the foregoing embodiment, please continue to refer to fig. 1, the system according to the embodiment of the present invention further includes:
the power carrier communication medium 4 is used for transmitting voltage signals between the information acquisition and transmission module 1 and the information collection and summary module 2, and the power carrier communication medium 4 is a 220V single-phase alternating-current power signal line, or the power carrier communication medium 4 is a 380V three-phase alternating-current power signal line;
the network signal transmission cable 5 adopts a network cable with shielding, so that normal transmission of network signals is ensured, and meanwhile, the cable has certain capability of resisting radiation interference.
The information acquisition and transmission module 1 is mainly used for supplying power to a transmitter circuit, converting 4-20 mA current signals output by the transmitter into voltage signals, sampling the voltage signals through A/D (analog/digital) and transmitting the voltage signals to the information collection and summary module 2 in a power carrier communication mode. The device has the characteristics of small volume, low power consumption, high reliability, high cost performance and the like. Fig. 2 shows a block diagram of the information acquisition and transmission module 1, where the information acquisition and transmission module 1 includes:
the first alternating current signal protection circuit 6 comprises a voltage dependent resistor and a fuse, and is used for instantly absorbing surge voltage at the input end of the alternating current power supply and releasing energy to the ground; after surge impact is protected, the surge impact is obviously reduced, and the influence on a post-stage circuit is reduced;
an AC-DC converting circuit 7 for converting a single-phase 220V AC power supply into a 25V DC voltage; the circuit has the advantages of wide input voltage range, high reliability, high efficiency, safe isolation and small volume;
the first switch voltage reduction circuit (switch voltage reduction-1 circuit 8) reduces the input converted 25V direct current voltage according to a first preset voltage reduction threshold value and outputs 24V voltage with low ripple waves for the transmitter to use; the first preset step-down threshold is an experimental value, which is set to 1v in the embodiment of the present invention, but in the specific application process, the first preset step-down threshold is not limited.
The second switch voltage reduction circuit (switch voltage reduction-2 circuit 9) reduces the input converted 25V direct-current voltage according to a second preset voltage reduction threshold value to output a low-ripple 5V voltage for the first linear voltage reduction circuit and the second linear voltage reduction circuit; the second preset step-down threshold is an experimental value, which is set to be 20v in the embodiment of the present invention, but is not limited in the specific application process.
The first linear voltage reduction circuit (linear voltage reduction-1 circuit 10) linearly reduces the 5V voltage reduced by the second switch voltage reduction circuit according to a third preset voltage reduction threshold (set to 1.7V), and outputs a low ripple 3.3V voltage to the power carrier communication circuit 14 for use; the voltage reduction circuit can improve a power supply signal with higher quality, can be isolated from other power supply signals, and avoids interference signals from being conducted in a wired mode through the power supply signals;
the second linear voltage reduction circuit (linear voltage reduction-2 circuit 11) linearly reduces the 5V voltage reduced by the second switch voltage reduction circuit according to a fourth preset voltage reduction threshold value and outputs a low-ripple 3.3V voltage to the microprocessor, the external circuit and the sampling circuit 12 for use; the voltage reduction circuit can improve the power supply signal with higher quality, can be isolated from other power supply signals, and avoids the interference signal from conducting wire through the power supply signal;
the sampling circuit 12 is suitable for two-wire system and four-wire system; the circuit converts 4 mA-20 mA current signals output by the transmitter into voltage and conditions the signals;
and the microprocessor circuit 13 is used for performing A/D conversion on the voltage signal acquired by the sampling circuit 12 through the sensor, transmitting the voltage signal to the real-time information collection module through the power carrier communication circuit 14, and detecting and indicating the working state of the module.
The power carrier communication circuit 14 can support two frequency bands of 0.5 MHz-3.7 MHz and 2.5 MHz-5.7 MHz, can be configured through software, and has FEC forward error correction and CRC check functions;
the operation indication light-emitting diode 15 can indicate the working states of the microprocessor and the module by controlling and displaying through the microprocessor;
a program programming and software debugging interface 16, through which software online debugging can be performed, and program file programming can also be performed;
the test serial port 17 is used for printing the working process of the processor and the working state of the module in real time;
a light emitting diode driving circuit 18 for controlling the light emitting diode after driving the power carrier communication data signal;
the data communication indication light-emitting diode 19 is driven by the light-emitting diode driving circuit 18 to emit light, and can indicate the data communication state in real time.
The information collection and summary module 2 comprises: the device comprises an alternating current signal protection circuit 6, an alternating current-to-direct current circuit 7, a second switch voltage reduction circuit, a first linear voltage reduction circuit, a second linear voltage reduction circuit, a light emitting diode driving circuit 18, a microprocessor circuit 13, a power carrier communication circuit 14, an operation indication light emitting diode 15, a program programming and software debugging interface 16 test serial port 17, and a light emitting diode driving circuit 18 mentioned data communication indication light emitting diode 19. The above components are the same as the information collecting and transmitting module 1, and for the description, refer to the detailed description of the related embodiments.
As shown in fig. 3, the information collecting and summarizing module 2 further includes:
the enhanced microprocessor 20 is internally provided with an Ethernet MAC, can realize Ethernet communication by combining an external circuit, and can transmit collected data to the system management maintenance terminal 3 through a network port after the collected data are gathered;
the Ethernet PHY chip 21 is provided with a data communication indicating light emitting diode 19 which is driven by a driving circuit to emit light and indicates the data communication state in real time;
and the network transformer 22 is used for network signal transmission, impedance matching, waveform restoration, signal clutter suppression and high-voltage isolation.
Corresponding to the transmission system of the transmitter signal power information, the invention also provides a transmission method of the transmitter signal power information. Since the method embodiment of the present invention corresponds to the system embodiment described above, details that are not disclosed in the method embodiment may refer to the system embodiment described above, and are not described again in the present invention.
The embodiment of the invention also provides a transmission method of a transmission system based on the transmitter signal power information, as shown in fig. 4, the method further comprises the following steps:
101. after the information acquisition and transmission module converts the current signal output by the transmitter into a voltage signal, the voltage signal is transmitted to the information collection and summary module in a power carrier communication mode; and transmitting a voltage signal between the information acquisition and transmission module and the information collection and collection module through a power carrier communication medium, wherein the power carrier communication medium is a 220V single-phase alternating current power signal line, or the power carrier communication medium is a 380V three-phase alternating current power signal line.
102. The information collecting and gathering module receives the voltage signals output by the transmitter in the information collecting and transmitting module, and the voltage signals are subjected to data gathering and then transmitted to a system management and maintenance terminal through a network signal transmission cable;
103. and receiving the summarized data sent by the information collection and summarization module based on the system management maintenance terminal, and processing the summarized data.
The embodiment of the present invention further provides a method for transmitting power information of a transmitter signal, as shown in fig. 5, the method includes:
201. the surge voltage at the input end of the alternating current power supply is instantly absorbed and the energy to the ground is released through the first alternating current signal protection circuit;
202. the information acquisition and transmission module converts a current signal output by the transmitter into a voltage signal;
203. the input converted direct-current voltage is subjected to voltage reduction according to a first preset voltage reduction threshold value through a first switch voltage reduction circuit, and low-ripple voltage is output for the transmitter to use;
204. the second switch voltage reduction circuit is used for reducing the input converted direct-current voltage according to a second preset voltage reduction threshold value to output low-ripple voltage for the first linear voltage reduction circuit and the second linear voltage reduction circuit;
205. the voltage reduced by the second switch voltage reduction circuit is linearly reduced by a first linear voltage reduction circuit according to a third preset voltage reduction threshold value, and low ripple voltage is output to the power carrier communication circuit for use;
206. the voltage reduced by the second switch voltage reduction circuit is linearly reduced by a second linear voltage reduction circuit according to a fourth preset voltage reduction threshold value, and the low-ripple voltage is output to a microprocessor, an external circuit and a sampling circuit for use;
207. the microprocessor circuit is used for carrying out A/D conversion on the voltage signals acquired by the sampling circuit through the sensor, transmitting the voltage signals to the real-time information collection module through the power carrier communication circuit, and detecting and indicating the working state of the module.
The embodiment of the invention provides a transmission system and a transmission method of transmitter signal power information, which comprises the following steps: the information acquisition and transmission module is used for supplying power to the transmitter circuit, converting a current signal output by the transmitter into a voltage signal and transmitting the voltage signal to the information collection and summary module in a power carrier communication mode; the information collecting and summarizing module is used for receiving the voltage signals output by the transmitters in the information collecting and transmitting module, collecting the data of the voltage signals and transmitting the data to a system management and maintenance terminal through a network signal transmission cable; and the system management maintenance terminal is used for receiving the summarized data sent by the information collection and summarization module and processing the summarized data. The system and the method of the embodiment of the invention do not need to lay a special cable, simplify the engineering implementation process and realize intelligent management and maintenance.
The system and apparatus embodiments correspond to the system embodiments, and have the same technical effects as the method embodiments, and for the specific description, refer to the method embodiments. The device embodiment is obtained based on the method embodiment, and for specific description, reference may be made to the method embodiment section, which is not described herein again. Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A transmission system for transmitter signal power information, comprising:
the information acquisition and transmission module is used for supplying power to the transmitter circuit, converting a current signal output by the transmitter into a voltage signal and transmitting the voltage signal to the information collection and summary module in a power carrier communication mode;
the information collecting and summarizing module is used for receiving the voltage signals output by the transmitters in the information collecting and transmitting module, collecting the data of the voltage signals and transmitting the data to a system management and maintenance terminal through a network signal transmission cable;
and the system management maintenance terminal is used for receiving the summarized data sent by the information collection and summarization module and processing the summarized data.
2. The system of claim 1, wherein the information gathering and transmitting module comprises:
the first alternating current signal protection circuit comprises a piezoresistor and a fuse, and is used for instantly absorbing surge voltage at the input end of the alternating current power supply and releasing energy to the ground;
the alternating current-to-direct current circuit converts an alternating current power supply into direct current voltage;
the first switch voltage reduction circuit reduces the input converted direct-current voltage according to a first preset voltage reduction threshold value and outputs a low-ripple voltage for the transmitter to use;
the second switch voltage reduction circuit reduces the input converted direct-current voltage according to a second preset voltage reduction threshold value to output low-ripple voltage for the first linear voltage reduction circuit and the second linear voltage reduction circuit;
the first linear voltage reduction circuit linearly reduces the voltage reduced by the second switch voltage reduction circuit according to a third preset voltage reduction threshold value and outputs low ripple voltage to the power carrier communication circuit for use;
the second linear voltage reduction circuit linearly reduces the voltage reduced by the second switch voltage reduction circuit according to a fourth preset voltage reduction threshold value and outputs the voltage with low ripple waves to the microprocessor, the external circuit and the sampling circuit for use;
the sampling circuit is suitable for two-wire system and four-wire system modes;
and the microprocessor circuit is used for carrying out A/D conversion on the voltage signal acquired by the sampling circuit through the sensor, transmitting the voltage signal to the real-time information collection module through the power carrier communication circuit, and detecting and indicating the working state of the module.
3. The system of claim 2, wherein the information gathering and transmitting module further comprises:
the power carrier communication circuit can support two frequency bands of 0.5 MHz-3.7 MHz and 2.5 MHz-5.7 MHz, can be configured through software and has FEC forward error correction and CRC check functions;
the operation indication light-emitting diode is controlled and displayed by the microprocessor, and can indicate the working states of the microprocessor and the module;
the program programming and software debugging interface can be used for carrying out software online debugging and programming a program file;
the test serial port is used for printing the working process of the processor and the working state of the module in real time;
the light-emitting diode driving circuit controls the light-emitting diode after driving the power carrier communication data signal;
the data communication indication light-emitting diode is driven by the light-emitting diode driving circuit to emit light, and can indicate the data communication state in real time.
4. The transmission system of transmitter signal power information of any one of claims 1 to 3, further comprising:
the power carrier communication medium is used for transmitting voltage signals between the information acquisition and transmission module and the information collection and summary module, and is a 220V single-phase alternating-current power signal line, or is a 380V three-phase alternating-current power signal line;
the network signal transmission cable adopts a network cable with shielding, so that normal transmission of network signals is ensured, and meanwhile, the cable has certain capability of resisting radiation interference.
5. The system of claim 3, wherein the information gathering and summary module comprises: the system comprises an alternating current signal protection circuit, an alternating current-to-direct current circuit, a second switch voltage reduction circuit, a first linear voltage reduction circuit, a second linear voltage reduction circuit, a light emitting diode driving circuit, a microprocessor circuit, a power carrier communication circuit, an operation indication light emitting diode, a program programming and software debugging interface test serial port and a light emitting diode driving circuit, wherein the light emitting diode driving circuit refers to a data communication indication light emitting diode.
6. The system for transmission of transmitter signal power information of claim 5, wherein said information collection aggregation module further comprises:
the Ethernet PHY chip is used for indicating a light-emitting diode for data communication, and the driving circuit is used for driving the light-emitting diode to emit light so as to indicate the data communication state in real time;
the network transformer is used for network signal transmission, impedance matching, waveform restoration, signal clutter suppression and high-voltage isolation.
7. A transmission method according to claim 1, comprising:
after the information acquisition and transmission module converts the current signal output by the transmitter into a voltage signal, the voltage signal is transmitted to the information collection and summary module in a power carrier communication mode;
the information collecting and gathering module receives the voltage signals output by the transmitter in the information collecting and transmitting module, and the voltage signals are subjected to data gathering and then transmitted to a system management and maintenance terminal through a network signal transmission cable;
and receiving the summarized data sent by the information collection and summarization module based on the system management maintenance terminal, and processing the summarized data.
8. The method of claim 7, wherein prior to the information acquisition and transmission module converting the current signal output by the transmitter to a voltage signal, the method further comprises:
the surge voltage at the input end of the alternating current power supply is instantly absorbed and the energy to the ground is released through the first alternating current signal protection circuit;
after converting the current signal output by the transmitter to a voltage signal, the method further comprises:
the input converted direct-current voltage is subjected to voltage reduction according to a first preset voltage reduction threshold value through a first switch voltage reduction circuit, and low-ripple voltage is output for the transmitter to use;
the second switch voltage reduction circuit is used for reducing the input converted direct-current voltage according to a second preset voltage reduction threshold value to output low-ripple voltage for the first linear voltage reduction circuit and the second linear voltage reduction circuit;
the voltage reduced by the second switch voltage reduction circuit is linearly reduced by a first linear voltage reduction circuit according to a third preset voltage reduction threshold value, and low ripple voltage is output to the power carrier communication circuit for use;
the voltage reduced by the second switch voltage reduction circuit is linearly reduced by a second linear voltage reduction circuit according to a fourth preset voltage reduction threshold value, and the low-ripple voltage is output to a microprocessor, an external circuit and a sampling circuit for use;
the microprocessor circuit is used for carrying out A/D conversion on the voltage signals acquired by the sampling circuit through the sensor, transmitting the voltage signals to the real-time information collection module through the power carrier communication circuit, and detecting and indicating the working state of the module.
9. The method according to claim 7 or 8, characterized in that the method further comprises:
and transmitting a voltage signal between the information acquisition and transmission module and the information collection and collection module through a power carrier communication medium, wherein the power carrier communication medium is a 220V single-phase alternating current power signal line, or the power carrier communication medium is a 380V three-phase alternating current power signal line.
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