CN210157187U - Environment monitoring equipment for transmitting data signals through power line - Google Patents
Environment monitoring equipment for transmitting data signals through power line Download PDFInfo
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- CN210157187U CN210157187U CN201921419554.XU CN201921419554U CN210157187U CN 210157187 U CN210157187 U CN 210157187U CN 201921419554 U CN201921419554 U CN 201921419554U CN 210157187 U CN210157187 U CN 210157187U
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Abstract
The utility model provides an environment monitoring device for transmitting data signals through a power line, which comprises a monitoring sampling module, a digital communication interface circuit and a coupling unit; the coupling unit is used for decoupling the analog communication signal of the power supply line and interacting a digital communication signal with the digital communication interface circuit; the digital communication interface circuit converts digital communication signals into internal communication signals to interact with the monitoring sampling module, the coupling unit comprises a broadband power line carrier circuit, a narrowband power line carrier circuit and a communication switching circuit, and when one circuit of the broadband power line carrier circuit and the narrowband power line carrier circuit breaks down, the communication switching circuit switches signals needing to be interacted to the other circuit. The utility model discloses reduce the wiring degree of difficulty, but long distance sets up environment monitoring equipment's position, can guarantee the high reliability requirement of environment monitoring equipment long-term work, improved data transmission efficiency simultaneously, also improved data transmission's reliability.
Description
Technical Field
The utility model relates to an environmental monitoring equipment technical field especially relates to an environmental monitoring equipment through power line transmission data signal.
Background
Some large-scale electromechanical equipment have specific requirements on the internal environment such as temperature, humidity and the like, generally, environment monitoring equipment is needed to be used in the large-scale electromechanical equipment, the internal environment states such as temperature, humidity and the like of the large-scale electromechanical equipment are monitored for a long time, and monitoring data are uploaded to an upper computer in real time. The environment monitoring equipment needs a continuous power supply line on one hand, and needs to transmit collected environment information through a communication line on the other hand. Therefore, when the traditional environment monitoring equipment works, two lines, namely an electric power supply line and a digital communication line, are needed. Because environment monitoring equipment generally arranges inside electromechanical class equipment, the wiring degree of difficulty that uses two circuits is great, and environment monitoring equipment needs long-term work moreover, and is very high to the reliability requirement, and too much can lead to reliability greatly reduced of cable core point. Furthermore, power lines can be laid over long distances, while communication cables often have length limitations and cannot transmit data if the distance is too long.
The utility model patent CN201420201178.8 discloses a foundation ditch construction environment monitor based on power line carrier communication function, is applied to the environment monitor with power line carrier communication function, through power line transmission, saves extra wiring, simplifies the network deployment degree of difficulty, reduces the wiring cost. However, the technical solution in the patent still has the following disadvantages:
1. only one power line carrier communication channel is adopted, and when the channel fails or data is blocked, the environment monitoring data cannot be uploaded correctly;
2. only the circuit of a single environment monitor is provided, and the circuit topology after a plurality of environment monitors are networked is not provided;
3. and the monitoring and uploading of the faults of the circuit can not be realized.
Disclosure of Invention
An object of the utility model is to overcome prior art's is not enough, provide an environmental monitoring equipment through power line transmission data signal.
The utility model provides a following technical scheme:
an environment monitoring device for transmitting data signals through a power line comprises a monitoring sampling module, a digital communication interface circuit and a coupling unit; the coupling unit decouples the analog communication signal of the power supply line into a digital communication signal and interacts the digital communication signal with the digital communication interface circuit through the digital communication line; the digital communication interface circuit converts a digital communication signal into an internal communication signal, and the internal communication signal is interacted with the monitoring sampling module through an internal communication line, and the monitoring sampling module is interacted with an environment signal acquired by the coupling unit through the communication interface circuit; the coupling unit comprises a broadband power line carrier circuit, a narrowband power line carrier circuit and a communication switching circuit, wherein the broadband power line carrier circuit and the narrowband power line carrier circuit are interacted with the communication switching circuit, when one of the broadband power line carrier circuit and the narrowband power line carrier circuit is in fault, an interaction signal of the faulted circuit and the communication switching circuit disappears, and a multi-way selection switch in the communication switching circuit switches a signal needing interaction to the other circuit.
Preferably, the environment monitoring device further comprises a power distribution circuit, the power distribution circuit outputs two paths of power distribution signals, one path of power distribution signal is output to the digital communication interface circuit, and the other path of power distribution signal is output to the monitoring sampling module.
Preferably, the environment monitoring device further comprises an internal sampling circuit, and the internal sampling circuit collects internal sampling signals of the power distribution circuit, the digital communication interface circuit and the monitoring sampling module and provides the internal sampling signals for the coupling unit to perform internal testing.
Preferably, the coupling unit further comprises a strong electric circuit, a main control circuit, a communication preprocessing circuit and an onboard power conversion circuit, wherein the strong electric circuit provides input electricity for the onboard power conversion circuit; the strong circuit respectively interacts with the broadband power line carrier circuit and the narrowband power line carrier circuit to step down the input signal; the broadband power line carrier circuit demodulates the voltage-reduction input signal into a broadband demodulation signal and provides the broadband demodulation signal to the communication switching circuit; the narrow-band power line carrier circuit demodulates the voltage-reduction input signal into a narrow-band demodulation signal and provides the narrow-band demodulation signal to the communication switching circuit; the communication switching circuit switches and synthesizes the broadband demodulation signal and the narrowband demodulation signal, and the synthesized demodulation signal interacts with the main control circuit; the main control circuit and the communication preprocessing circuit interact with each other to pre-communicate signals; the communication preprocessing circuit interacts digital communication signals with the digital communication interface circuit through a digital communication line; the onboard power supply conversion circuit converts input electricity into power supply output, and the power supply output respectively supplies power to the broadband power line carrier circuit, the narrowband power line carrier circuit, the communication switching circuit, the master control circuit and the communication preprocessing circuit.
Preferably, the onboard power conversion circuit also outputs a redundant power supply, and the redundant power supply output circuit supplies power to the power distribution circuit.
Preferably, the coupling unit further comprises a built-in test circuit, and the built-in test circuit receives a built-in sampling signal of the built-in sampling circuit, converts the built-in sampling signal into a built-in test signal and provides the built-in test signal to the main control circuit.
Preferably, the on-board power conversion circuit is also used to power the built-in test circuit.
Preferably, a plurality of the environment monitoring devices may be connected in parallel with the power supply line via respective coupling units.
The utility model discloses be applied to environment monitoring equipment with power line transmission data signal, and be equipped with broadband power line carrier circuit and narrowband power line carrier circuit in environment monitoring equipment's coupling unit, when one of them circuit of broadband power line carrier circuit and narrowband power line carrier circuit broke down, accessible communication switching circuit switched to on another circuit. The utility model has the advantages of as follows:
1. the wiring relation of the internal environment monitoring equipment of the electromechanical equipment is simplified, and the wiring difficulty is greatly reduced;
2. the system cable only has two core points of positive and negative power supply, so that the requirement of high reliability that the environment monitoring equipment needs to work for a long time can be met;
3. a longer power cable can be laid, so that the position of the environment monitoring equipment can be arranged in a long distance;
4. the communication data is classified into two types of high-speed data and low-speed data, the two types of high-speed data and the low-speed data are transmitted through two independent channels, and when one channel fails, the data on the other channel can be switched over, so that the data transmission efficiency is improved, and the data transmission reliability is also improved.
Drawings
Fig. 1 is a schematic structural diagram of an environment monitoring device.
Fig. 2 is a schematic structural diagram of a coupling unit.
FIG. 3 is a circuit topology diagram of a plurality of environment monitoring devices.
In the figure:
1. an environmental monitoring device; 11. a coupling unit; 12. a power distribution circuit; 13. a digital communication interface circuit; 14. a built-in sampling circuit; 15. a monitoring sampling module; 111. a strong current circuit; 112. a broadband power line carrier circuit; 113. a narrowband power line carrier circuit; 114. a communication switching circuit; 115. a master control circuit; 116. a communication preprocessing circuit; 117. an onboard power conversion circuit; 118. a built-in test circuit; 2. an external power supply; 3. an upper computer; 4. a coupling circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
Referring to fig. 1, an environment monitoring apparatus for transmitting a data signal through a power line, a monitoring sampling module 15, a digital communication interface circuit 13, and a coupling unit 11; the coupling unit 11 decouples the analog communication signal of the power supply line into a digital communication signal, and interacts the digital communication signal with the digital communication interface circuit 13 through a digital communication line; the digital communication interface circuit 13 converts the digital communication signal into an internal communication signal, and the internal communication signal interacts with the monitoring sampling module 15 through an internal communication line, and the monitoring sampling module 15 interacts with the coupling unit 11 through the communication interface circuit to acquire an environmental signal; the coupling unit 11 includes a broadband power line carrier circuit 112, a narrowband power line carrier circuit 113 and a communication switching circuit 114, where the broadband power line carrier circuit 112 and the narrowband power line carrier circuit 113 both interact with the communication switching circuit 114, when one of the broadband power line carrier circuit 112 and the narrowband power line carrier circuit 113 fails, an interaction signal between the failed circuit and the communication switching circuit 114 disappears, and a multi-way selector switch in the communication switching circuit 114 switches a signal to be interacted to the other circuit.
The main functions of the coupling unit 11 are: 1) providing a high-speed broadband channel for high-speed data with high real-time requirements in the environment monitoring equipment 1, converting high-frequency data in a digital communication signal in the environment monitoring equipment 1 into a high-frequency power line carrier signal, and coupling the high-frequency data to an external power line for transmission; 2) providing a low-speed broadband channel for low-speed data with low real-time requirement in the environment monitoring equipment 1, converting low-frequency data in a digital communication signal in the environment monitoring equipment 1 into a low-frequency power line carrier signal, and coupling the low-frequency data to an external power line for transmission; 3) through the communication switching circuit 114, switching is performed between high-frequency data and low-frequency data, and when one of the power line carrier circuits fails, the data can be switched to the other channel, so that redundancy of the communication channel is realized.
The utility model discloses an environmental monitoring equipment 1 still includes distribution circuit 12, and this distribution circuit 12 outputs two way distribution signals, and distribution signal exports to digital communication interface circuit 13 all the way, and another way distribution signal exports to monitoring sampling module 15. The utility model discloses an environmental monitoring equipment 1 still includes built-in sampling circuit 14, and this built-in sampling circuit 14 gathers distribution circuit 12, digital communication interface circuit 13 and monitoring sampling module 15's built-in sampling signal to provide coupling unit 11 and carry out built-in test.
Referring to fig. 2, the coupling unit 11 in the environment monitoring device 1 further includes a strong electric 0 circuit 111, a main control circuit 115, a communication preprocessing circuit 116, and an on-board power conversion circuit 117, where the strong electric circuit 111 provides input power to the on-board power conversion circuit 117; the strong current circuit 111 interacts with a broadband power line carrier circuit 112 and a narrowband power line carrier circuit 113 to step down input signals; the broadband power line carrier circuit 112 demodulates the step-down input signal into a broadband demodulation signal, and supplies the broadband demodulation signal to the communication switching circuit 114; the narrowband power line carrier circuit 113 demodulates the step-down input signal into a narrowband demodulated signal, and supplies it to the communication switching circuit 114; the communication switching circuit 114 switches and synthesizes the broadband demodulation signal and the narrowband demodulation signal, and the synthesized demodulation signal interacts with the main control circuit 115; the master control circuit 115 interacts with the communication preprocessing circuit 116 to generate pre-communication signals; the communication preprocessing circuit 116 interacts digital communication signals with the digital communication interface circuit 13 through a digital communication line; the on-board power conversion circuit 117 converts the input power into power supply output, and supplies power to the broadband power line carrier circuit 112, the narrowband power line carrier circuit 113, the communication switching circuit 114, the main control circuit 115 and the communication preprocessing circuit 116, respectively.
The on-board power conversion circuit 117 also outputs a redundant power supply, and supplies power to the power distribution circuit 12 through a redundant power supply output line. The coupling unit 11 in the environmental monitoring device 1 further includes a built-in test circuit 118, and the built-in test circuit 118 receives the built-in sampling signal from the built-in sampling circuit 14, converts the built-in sampling signal into a built-in test signal, and provides the built-in test signal to the main control circuit 115. The on-board power conversion circuit 117 is also used to power the on-board test circuitry 118.
The coupling unit 11 is further provided with an internal test circuit 118, internal test work is performed through the internal test circuit 118, internal test data are coupled to an external power line through a low-frequency channel, an internal test capability is provided for the environment monitoring device 1, and data support is provided for fault diagnosis and health prediction. The coupling unit 11 also performs a redundant design on the power supply capability of the onboard power conversion circuit 117, so that not only is power supplied to other circuits in the coupling unit 11, but also a redundant power supply output interface is provided for the environment detection equipment, and the problem of power supply of the environment monitoring equipment 1 is solved.
A plurality of environment monitoring devices 1 may be connected in parallel with the power supply lines by respective coupling units 11, as shown in fig. 3. The environment monitoring devices 1 are installed inside the electromechanical device, one or more environment monitoring devices 1 are installed inside the electromechanical device according to requirements, and each environment monitoring device 1 is connected with an electric power supply line through a coupling unit 11 inside the environment monitoring device. All the environment monitoring devices 1 inside the mechatronic device are connected to the same electrical power supply line in the form of a bus by means of the coupling unit 11. The power supply line is connected with the external power supply 2 and the upper computer 3, and the inside of the upper computer 3 is connected with the power supply line through the coupling circuit 4.
The utility model discloses increase a coupling unit 11 in environmental monitoring equipment 1, with digital communication signal coupling to power line, only through a power line both realize the function of power supply and realize digital communication's function, simultaneously, set up broadband power line carrier circuit 112 and narrowband power line carrier circuit 113 in coupling unit 11, improved data transmission efficiency, also improved data transmission's reliability. Therefore, on one hand, the three defects in the prior art are overcome, and meanwhile, the built-in test function and the redundant power supply output interface are provided, so that the wiring relation of the system is greatly simplified, and the reliability of the system and the intellectualization and universalization degree of equipment are improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An environment monitoring device for transmitting data signals through a power line is characterized by comprising a monitoring sampling module, a digital communication interface circuit and a coupling unit; the coupling unit decouples the analog communication signal of the power supply line into a digital communication signal and interacts the digital communication signal with the digital communication interface circuit through the digital communication line; the digital communication interface circuit converts a digital communication signal into an internal communication signal, and the internal communication signal is interacted with the monitoring sampling module through an internal communication line, and the monitoring sampling module is interacted with an environment signal acquired by the coupling unit through the communication interface circuit; the coupling unit comprises a broadband power line carrier circuit, a narrowband power line carrier circuit and a communication switching circuit, wherein the broadband power line carrier circuit and the narrowband power line carrier circuit are interacted with the communication switching circuit, when one of the broadband power line carrier circuit and the narrowband power line carrier circuit is in fault, an interaction signal of the faulted circuit and the communication switching circuit disappears, and a multi-way selection switch in the communication switching circuit switches a signal needing interaction to the other circuit.
2. The environmental monitoring device of claim 1, further comprising a power distribution circuit, wherein the power distribution circuit outputs two power distribution signals, one power distribution signal is output to the digital communication interface circuit, and the other power distribution signal is output to the monitoring sampling module.
3. The environmental monitoring device of claim 1, further comprising an internal sampling circuit that collects internal sampling signals from the power distribution circuit, the digital communication interface circuit, and the monitoring sampling module and provides the signals to the coupling unit for internal testing.
4. An environmental monitoring apparatus according to any of claims 1-3, wherein the coupling unit further comprises a strong power circuit, a master control circuit, a communication pre-processing circuit and an on-board power conversion circuit, the strong power circuit providing input power to the on-board power conversion circuit; the strong circuit respectively interacts with the broadband power line carrier circuit and the narrowband power line carrier circuit to step down the input signal; the broadband power line carrier circuit demodulates the voltage-reduction input signal into a broadband demodulation signal and provides the broadband demodulation signal to the communication switching circuit; the narrow-band power line carrier circuit demodulates the voltage-reduction input signal into a narrow-band demodulation signal and provides the narrow-band demodulation signal to the communication switching circuit; the communication switching circuit switches and synthesizes the broadband demodulation signal and the narrowband demodulation signal, and the synthesized demodulation signal interacts with the main control circuit; the main control circuit and the communication preprocessing circuit interact with each other to pre-communicate signals; the communication preprocessing circuit interacts digital communication signals with the digital communication interface circuit through a digital communication line; the onboard power supply conversion circuit converts input electricity into power supply output, and the power supply output respectively supplies power to the broadband power line carrier circuit, the narrowband power line carrier circuit, the communication switching circuit, the master control circuit and the communication preprocessing circuit.
5. The environmental monitoring device of claim 4, wherein the on-board power conversion circuit further outputs a redundant power supply, and the power distribution circuit is powered by the redundant power supply output line.
6. The environmental monitoring device of claim 4, wherein the coupling unit further comprises a built-in test circuit that receives the built-in sample signal from the built-in sample circuit and converts the built-in sample signal to a built-in test signal for the master control circuit.
7. The environmental monitoring apparatus for transmitting data signals over a power line of claim 6, wherein the on-board power conversion circuit is further configured to power the built-in test circuit.
8. An environmental monitoring device according to claim 1, wherein a plurality of the environmental monitoring devices are connectable in parallel to an electrical power supply line via respective coupling units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921419554.XU CN210157187U (en) | 2019-08-29 | 2019-08-29 | Environment monitoring equipment for transmitting data signals through power line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921419554.XU CN210157187U (en) | 2019-08-29 | 2019-08-29 | Environment monitoring equipment for transmitting data signals through power line |
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| CN210157187U true CN210157187U (en) | 2020-03-17 |
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| CN201921419554.XU Active CN210157187U (en) | 2019-08-29 | 2019-08-29 | Environment monitoring equipment for transmitting data signals through power line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720377A (en) * | 2021-01-26 | 2021-11-30 | 青岛鼎信通讯股份有限公司 | Environment monitoring equipment based on carrier communication |
| CN113852396A (en) * | 2021-10-08 | 2021-12-28 | 珠海格力电器股份有限公司 | Data protection control method, device and system |
-
2019
- 2019-08-29 CN CN201921419554.XU patent/CN210157187U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720377A (en) * | 2021-01-26 | 2021-11-30 | 青岛鼎信通讯股份有限公司 | Environment monitoring equipment based on carrier communication |
| CN113852396A (en) * | 2021-10-08 | 2021-12-28 | 珠海格力电器股份有限公司 | Data protection control method, device and system |
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