Remote self-monitoring system based on two-wire IP

Abstract

The present invention relates to the field of remote monitoring technology, and in particular to a remote self-monitoring system based on a two-wire IP, comprising a power supply and acquisition module, a signal transmission module, a signal processing module and a monitoring management module; the power supply and acquisition module is used to form a local signal acquisition network through multiple dual-port Ethernet switches in series, and the dual-port Ethernet switch communicates with local equipment and monitors to obtain monitoring signals; the signal transmission module is used to respond to a predetermined dynamic allocation of data streams to the dual-port Ethernet switch, realize network communication, and remotely transmit each monitoring signal to a signal processing module set in the cloud; the signal processing module is used to process the received monitoring signal, convert it into monitoring digital information, and store it; the monitoring management module is used to analyze the monitoring digital information and implement monitoring management according to the analysis results. The system networking of the present invention is simple and convenient, with low maintenance cost, few lines and less power loss.

Description

Technical Field

[0001] The invention relates to the technical field of remote monitoring, and in particular to a remote self-monitoring system based on two-line IP. Background Art

[0002] Traditional digital network communications use 4-core or 8-core network cables. For 10M or 100M Ethernet, industrial programmable logic controllers (PLCs) or distributed control systems (DCSs) are commonly used. Depending on the factory scenario, the needs for analog channels and digital channels are different, so 2 pairs of twisted pairs (4 wires) are required. If you want to power the device, you need to use a POE switch to power the device, or connect each device to a power adapter.

[0003] US Patent Document US07418631 discloses a home automation system, in which a coaxial cable or other home bus path for data transmission is placed inside the home to connect an intercom unit and a surveillance camera, and includes a hardware interface for communicating with visitors, and a traditional home television connected to the bus, so that audio and video signals from the intercom unit and the surveillance camera can be output on a traditional broadcast receiving television. In addition, US Patent Document US14150675 discloses a subscription notification mechanism for distributed state synchronization, including a client device and a remote server storing an information bucket. The client device sends a subscription request to the remote server to identify the information bucket, and when the storage information bucket changes, the remote server sends the change to the client device; the authentication technology includes a client device, which includes a unique default credential, which provides limited access to the server when presented to the remote server; the client device can obtain an assigned credential, which provides less restricted access to the server when presented to the remote server.

[0004] This traditional digital network communication requires the use of gateways for more complex networking connections, which has high maintenance costs and high network power consumption. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a remote self-monitoring system based on two-wire IP, including a power supply and acquisition module, a signal transmission module, a signal processing module and a monitoring management module;

[0006] The power supply and acquisition module is used to form a local signal acquisition network by connecting multiple dual-port Ethernet switches in series, and the dual-port Ethernet switches communicate with local devices and monitor to obtain monitoring signals;

[0007] A signal transmission module, for responding to a predetermined dynamic allocation of data streams to a dual-port Ethernet switch, realizing network communication, and remotely transmitting each monitoring signal to a signal processing module disposed in the cloud;

[0008] The signal processing module is used to process the received monitoring signal, convert it into monitoring digital information, and store it;

[0009] The monitoring management module is used to analyze the monitoring digital information and implement monitoring management based on the analysis results.

[0010] Optionally, the power supply and acquisition module includes a power switch submodule, and the power switch submodule is electrically connected to the power supply;

[0011] The dual-port Ethernet switch and the power switch submodule are connected in series in sequence using twisted pair cables based on 10BASE-T1L.

[0012] Optional power supply and acquisition modules include:

[0013] The power regulation submodule is used to manage the power supply of the set main power supply and auxiliary power supply. When the main power supply monitoring is abnormal, the auxiliary power supply is switched to replace the main power supply to provide the operating power supply;

[0014] The signal filtering submodule is used to filter the monitoring signal using a filter to eliminate noise signal interference through filtering.

[0015] Optionally, the power supply and acquisition module is provided with a signal coupling circuit, and the signal coupling circuit includes a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, an inductor L1, an inductor L2, an inductor L3, an inductor L4, an Ethernet transceiver PHY1, an Ethernet transceiver PHY2, a powered device PD and a power switch submodule;

[0016] The Ethernet transceiver PHY1 is connected to the negative electrode of the capacitor C1 and the positive electrode of the capacitor C2 respectively, the positive electrode of the capacitor C1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to the power port of the powered device PD, the negative electrode of the capacitor C2 is connected to one end of the inductor L2, and the ground end of the powered device PD and the other end of the inductor L2 are grounded;

[0017] The Ethernet transceiver PHY2 is connected to the negative electrode of the capacitor C3 and the positive electrode of the capacitor C4 respectively, the positive electrode of the capacitor C3 is connected to one end of the inductor L3, the other end of the inductor L3 is connected to the output port of the power switch submodule, the negative electrode of the capacitor C4 is connected to one end of the inductor L4, and the ground end of the power switch submodule and the other end of the inductor L4 are grounded;

[0018] The positive electrode of the capacitor C1 is connected to the positive electrode of the capacitor C3 , and the negative electrode of the capacitor C2 is connected to the negative electrode of the capacitor C4 .

[0019] Optionally, the signal coupling circuit is configured with an echo processing circuit, and the echo processing circuit includes a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R1, an inductor L5, an inductor L6 and an inductor L7;

[0020] One end of the inductor L6, the positive electrode of the capacitor C9 and the positive electrode of the capacitor C10 are respectively connected to the positive electrode of the power supply, the other end of the inductor L6 is respectively connected to the positive electrode of the capacitor C6, the positive electrode of the capacitor C8 and one end of the inductor L5, the negative electrode of the capacitor C6 is respectively connected to the positive electrode of the capacitor C5 and one end of the resistor R1, the negative electrode of the capacitor C5 and the other end of the resistor R1 are both connected to the positive electrode of the capacitor C7, the negative electrode of the capacitor C7, the other end of the inductor L5 and the negative electrode of the capacitor C8 are all connected to one end of the inductor L7, the other end of the inductor L7, the negative electrode of the capacitor C9 and the negative electrode of the capacitor C10 are grounded.

[0021] Optionally, the signal transmission module includes:

[0022] The signal amplification submodule is used to detect the initial signal strength of the monitoring signal and amplify the monitoring signal according to the deviation between the initial signal strength and a preset strength threshold;

[0023] The encryption processing submodule is used to encrypt the monitoring signal using a set encryption algorithm;

[0024] The transmission decision submodule is used to determine the network transmission path of the monitoring signal according to the path optimization strategy and implement network transmission of the encrypted monitoring signal.

[0025] Optionally, the transmission decision submodule includes:

[0026] A node information acquisition unit, used to acquire node information of available network nodes, the node information including node transmission efficiency and node operation energy consumption;

[0027] A path planning unit, used to implement preliminary planning of network transmission paths according to available network nodes to obtain multiple initial planning paths;

[0028] The path optimization selection unit is used to calculate the average node transmission efficiency of each initial planning path according to the node information of the available network nodes involved in the initial planning path, and calculate the inverse value of the total value of the node operation energy consumption as the energy consumption coefficient, and combine the set transmission efficiency weight and energy consumption weight to solve the weight and value of the average node transmission efficiency and the energy consumption coefficient, and adopt the initial planning path with the largest weight and value as the network transmission path;

[0029] The transmission execution unit is used to implement network transmission of the encrypted monitoring signal using a network transmission path, and monitor the transmission dynamic information of the available network nodes involved in the network transmission path.

[0030] Optionally, the signal processing module includes:

[0031] A signal conversion submodule, used for converting the received monitoring signal into monitoring digital information;

[0032] The data marking submodule is used to generate time stamp information and associate the time stamp information with the monitoring digital information to form a time stamp for the monitoring digital information;

[0033] The data storage submodule is used to store the timestamp information together with the monitoring digital information.

[0034] Optionally, the monitoring management module includes:

[0035] The graph drawing submodule is used to mark the corresponding monitoring digital information in the coordinate system according to the storage time of the monitoring digital information, and to connect the same type of monitoring digital information according to the time sequence to form a corresponding monitoring curve;

[0036] The threshold setting submodule is used to set corresponding upper and lower thresholds for various types of monitoring digital information. The upper and lower thresholds are marked respectively by straight lines parallel to the time coordinate axis in the coordinate system, and the position between the two straight lines corresponding to the upper and lower thresholds is used to represent the normal range of the corresponding monitoring digital information;

[0037] The operation cycle analysis submodule is used to segment the monitoring curve according to different durations to obtain monitoring segments, and compare the similarity between monitoring segments of the same length. If the similarity of all monitoring segments corresponding to a certain duration exceeds the set similarity threshold, the duration corresponding to the monitoring segment is used as the operation cycle;

[0038] The warning submodule is used to analyze the monitoring curve according to the upper threshold, the lower threshold and the operation cycle, and issue a warning message if the monitoring digital information exceeds the normal range or does not conform to the law of the operation cycle;

[0039] The visualization submodule is used to display the monitoring curve, the two straight lines corresponding to the upper threshold and the lower threshold in the coordinate system by using rendering technology, and to display the operation cycle and warning information.

[0040] Optionally, the operation cycle analysis submodule includes:

[0041] A line segment moving unit, used for moving one of the monitoring line segments according to the time difference between the two monitoring line segments on the monitoring curve, so that the two monitoring line segments are located at the same time in the coordinate system;

[0042] The comparison unit is used to calculate the mean distance between corresponding points on two monitoring line segments, and then calculate the mean deviation between the distance of each corresponding point and the mean distance, and use the inverse of the mean deviation as the similarity of the two monitoring line segments. The similarity is compared with a set similarity threshold to determine whether the similarity exceeds the set similarity threshold.

[0043] The remote self-monitoring system based on two-wire IP of the present invention forms a local signal acquisition network by using a power supply and acquisition module through a plurality of dual-port Ethernet switches connected in series in sequence. The dual-port Ethernet switch is connected to a local device for communication, and monitoring is performed to obtain a monitoring signal, which is transmitted to a signal processing module through a signal transmission module and converted into monitoring digital information. Information storage is performed, and the monitoring digital information is analyzed by a monitoring management module, and monitoring management is performed according to the analysis result. The present invention forms a local signal acquisition network by connecting a plurality of dual-port Ethernet switches in series in sequence, and a twisted pair cable can be used for connection. Both the power supply and signal transmission of the system can be performed through the twisted pair cable. The number of system networking connection lines is small, the connection is simple and convenient, the maintenance cost is low, the line loss of electric energy is reduced, the power consumption of the system network can be reduced, and the system energy saving is achieved.

[0044] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0045] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0047] Figure 1 A schematic block diagram of a two-wire IP-based remote self-monitoring system in an embodiment of the present invention;

[0048] Figure 2 A schematic block diagram of the connection between a dual-port Ethernet switch and a local device in an embodiment of a two-wire IP-based remote self-monitoring system of the present invention;

[0049] Figure 3 A schematic diagram of a signal coupling circuit provided in a power supply and acquisition module in an embodiment of a two-wire IP-based remote self-monitoring system of the present invention;

[0050] Figure 4It is a schematic diagram of an echo processing circuit configured with a signal coupling circuit in an embodiment of a two-wire IP-based remote self-monitoring system of the present invention. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0052] like Figure 1 As shown, the embodiment of the present invention provides a remote self-monitoring system based on a two-wire IP, including a power supply and acquisition module 10, a signal transmission module 20, a signal processing module 30 and a monitoring management module 40;

[0053] The power supply and acquisition module 10 is used to form a local signal acquisition network by connecting multiple dual-port Ethernet switches 50 in series, and the dual-port Ethernet switches 50 communicate with local devices and monitor to obtain monitoring signals;

[0054] The signal transmission module 20 is used to dynamically allocate data streams to the dual-port Ethernet switch in response to a predetermined one, realize network communication, and remotely transmit each monitoring signal to the signal processing module 30 disposed in the cloud;

[0055] The signal processing module 30 is used to process the received monitoring signal, convert it into monitoring digital information, and store it;

[0056] The monitoring management module 40 is used to analyze the monitoring digital information and implement monitoring management according to the analysis results.

[0057] The working principle and beneficial effects of the above technical solution are as follows: this solution adopts a power supply and acquisition module to form a local signal acquisition network through multiple dual-port Ethernet switches connected in series in sequence. The dual-port Ethernet switch is connected to the local equipment for communication, and monitoring is performed to obtain a monitoring signal, which is transmitted to the signal processing module through the signal transmission module, converted into monitoring digital information, and information storage is implemented. The monitoring digital information is then analyzed by the monitoring management module, and monitoring and management are implemented according to the analysis results; this solution forms a local signal acquisition network through multiple dual-port Ethernet switches connected in series in sequence, and twisted pair cables can be used for connection. Both the power supply and signal transmission of the system can be carried out through twisted pair cables. The number of system networking connection lines is small, the connection is simple and convenient, the maintenance cost is low, the line loss of electric energy is reduced, the system network power consumption can be reduced, and the system energy saving can be achieved.

[0058] In one embodiment, Figure 2 As shown, the power supply and acquisition module 10 includes a power switch submodule 11, and the power switch submodule 11 is electrically connected to the power supply;

[0059] The dual-port Ethernet switch 50 and the power switch submodule 11 are connected in series in sequence using twisted pair cables based on 10BASE-T1L;

[0060] The dual-port Ethernet switch 50 is communicatively connected with the local devices.

[0061] The working principle and beneficial effects of the above technical solution are as follows: the solution adopts a power supply and acquisition module, a dual-port Ethernet switch and a power switch submodule to be connected in series in sequence based on 10BASE-T1L with a twisted pair cable; 10BASE-T1L, as an industrial Ethernet network protocol, can replace the traditional functions of PLC and DCS, and can solve the problems of data rate and power output, with a large data rate of 10Mbps, an endpoint power of up to 500mW, and a non-intrinsically safe application power of up to 60W; the Internet Protocol address of each node under 10BASE-T1L extends the networking function to the edge of the factory network, and through the IP address, the node can not only be monitored but also remotely managed; the "10" in "10BASE-T1L" represents a transmission rate of 10Mbps, "BASE" refers to the baseband signal, and only the Ethernet signal can be transmitted through the medium, "T" stands for "twisted pair", the number "1" represents a range of 1 km, and an "L" after the number "1" represents "long distance", which means that the segment length can reach 1 km or longer; local equipment includes access control, electric valves and / or water pumps and other equipment.

[0062] In one embodiment, the power supply and acquisition module includes:

[0063] The power regulation submodule is used to manage the power supply of the set main power supply and auxiliary power supply. When the main power supply monitoring is abnormal, the auxiliary power supply is switched to replace the main power supply to provide the operating power supply;

[0064] The signal filtering submodule is used to filter the monitoring signal using a filter to eliminate noise signal interference through filtering.

[0065] The working principle and beneficial effects of the above technical scheme are as follows: this scheme adopts the setting of main power supply and auxiliary power supply, and uses the power supply regulation submodule to detect and judge the main power supply and auxiliary power supply. When the main power supply monitoring is abnormal, the auxiliary power supply is switched to replace the main power supply to provide the operating power, and the corresponding warning information is issued at the same time to remind the main power supply to be repaired or charged; similarly, when the auxiliary power supply is abnormal, the corresponding warning information can also be issued to remind the auxiliary power supply to be repaired or charged; through the power supply management of the power supply regulation submodule, the continuity of the system power supply can be achieved to avoid the system from completely losing power and being unable to work; the signal filtering submodule uses a filter to filter the monitoring signal, and eliminates the interference of noise signals through filtering, which can improve the detection accuracy of the monitoring signal and reduce or even avoid monitoring errors.

[0066] In one embodiment, Figure 3 As shown, the power supply and acquisition module is provided with a signal coupling circuit, and the signal coupling circuit includes capacitor C1, capacitor C2, capacitor C3, capacitor C4, inductor L1, inductor L2, inductor L3, inductor L4, Ethernet transceiver PHY1, Ethernet transceiver PHY2, powered device PD and power switch submodule 11;

[0067] The Ethernet transceiver PHY1 is connected to the negative electrode of the capacitor C1 and the positive electrode of the capacitor C2 respectively, the positive electrode of the capacitor C1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to the power port of the powered device PD, the negative electrode of the capacitor C2 is connected to one end of the inductor L2, and the ground end of the powered device PD and the other end of the inductor L2 are grounded;

[0068] The Ethernet transceiver PHY2 is connected to the negative electrode of the capacitor C3 and the positive electrode of the capacitor C4 respectively, the positive electrode of the capacitor C3 is connected to one end of the inductor L3, the other end of the inductor L3 is connected to the output port of the power switch submodule 11, the negative electrode of the capacitor C4 is connected to one end of the inductor L4, and the ground end of the power switch submodule 11 and the other end of the inductor L4 are grounded;

[0069] The positive electrode of the capacitor C1 is connected to the positive electrode of the capacitor C3 , and the negative electrode of the capacitor C2 is connected to the negative electrode of the capacitor C4 .

[0070] The working principle and beneficial effects of the above technical solution are as follows: This solution uses high-frequency data to couple with the data line through a series capacitor, while protecting the Ethernet transceiver PHY1 and the Ethernet transceiver PHY1 from the influence of the DC bus voltage, which can reduce the failure rate, improve the detection accuracy of the monitoring signal, and increase the service life of the equipment; wherein the powered device PD includes a dual-port Ethernet switch and other control devices that require power drive.

[0071] In one embodiment, Figure 4As shown, the signal coupling circuit is configured with an echo processing circuit, and the echo processing circuit includes a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R1, an inductor L5, an inductor L6 and an inductor L7;

[0072] One end of the inductor L6, the positive electrode of the capacitor C9 and the positive electrode of the capacitor C10 are respectively connected to the positive electrode of the power supply, the other end of the inductor L6 is respectively connected to the positive electrode of the capacitor C6, the positive electrode of the capacitor C8 and one end of the inductor L5, the negative electrode of the capacitor C6 is respectively connected to the positive electrode of the capacitor C5 and one end of the resistor R1, the negative electrode of the capacitor C5 and the other end of the resistor R1 are both connected to the positive electrode of the capacitor C7, the negative electrode of the capacitor C7, the other end of the inductor L5 and the negative electrode of the capacitor C8 are all connected to one end of the inductor L7, the other end of the inductor L7, the negative electrode of the capacitor C9 and the negative electrode of the capacitor C10 are grounded.

[0073] The working principle and beneficial effects of the above technical solution are as follows: In general, the return loss and signal attenuation (or drop) of the signal coupling circuit may have an adverse effect on the communication channel, wherein the return loss can be used to measure the signal reflection caused by the impedance mismatch at various locations in the cable link on the network, and the return loss can be expressed in decibels; this solution configures the echo processing circuit, models and simulates the signal coupling capacitor, power coupling inductor, common mode choke and other EMC protection components, and uses the LTspice Monte Carlo syntax to add preset component values ​​and tolerance ranges, thereby reducing the adverse effects of the echo and improving the detection accuracy of the monitoring signal.

[0074] In one embodiment, the signal transmission module includes:

[0075] The signal amplification submodule is used to detect the initial signal strength of the monitoring signal and amplify the monitoring signal according to the deviation between the initial signal strength and a preset strength threshold;

[0076] The encryption processing submodule is used to encrypt the monitoring signal using a set encryption algorithm;

[0077] The transmission decision submodule is used to determine the network transmission path of the monitoring signal according to the path optimization strategy and implement network transmission of the encrypted monitoring signal.

[0078] The working principle and beneficial effects of the above technical scheme are as follows: the signal amplification submodule of this scheme detects the initial signal strength of the monitoring signal, and amplifies the monitoring signal according to the deviation between the initial signal strength and the preset strength threshold. On the one hand, the strength of the monitoring signal can be controlled to be no less than the strength threshold, thereby ensuring the effectiveness of transmission and preventing signal loss or distortion; on the other hand, it does not excessively pursue signal strength and reduces energy consumption, which is conducive to maintaining consistency in the signal strength of the monitoring signal and facilitating signal processing; the monitoring signal is encrypted by an encryption algorithm to ensure the security of transmission; the transmission decision submodule is used to determine the network transmission path of the monitoring signal according to the path optimization strategy, and the encrypted monitoring signal is transmitted over the network, thereby ensuring transmission efficiency and controlling energy consumption.

[0079] In one embodiment, the transmission decision submodule includes:

[0080] A node information acquisition unit, used to acquire node information of available network nodes, the node information including node transmission efficiency and node operation energy consumption;

[0081] A path planning unit, used to implement preliminary planning of network transmission paths according to available network nodes to obtain multiple initial planning paths;

[0082] The path optimization selection unit is used to calculate the average node transmission efficiency of each initial planning path according to the node information of the available network nodes involved in the initial planning path, and calculate the inverse value of the total value of the node operation energy consumption as the energy consumption coefficient, and combine the set transmission efficiency weight and energy consumption weight to solve the weight and value of the average node transmission efficiency and the energy consumption coefficient, and adopt the initial planning path with the largest weight and value as the network transmission path;

[0083] The transmission execution unit is used to implement network transmission of the encrypted monitoring signal using a network transmission path, and monitor the transmission dynamic information of the available network nodes involved in the network transmission path.

[0084] The working principle and beneficial effects of the above technical scheme are as follows: the transmission decision submodule of this scheme obtains the node information of the available network nodes, and the node information includes the node transmission efficiency and the node operation energy consumption. On the basis of implementing the preliminary planning of the network transmission path, according to the path optimization strategy that balances the transmission efficiency and energy consumption, by calculating the weights and values ​​of the average node transmission efficiency and the energy consumption coefficient, the initial planned path with the largest weight and value is adopted as the network transmission path, and the transmission execution unit is used to implement network transmission of the encrypted monitoring signal according to the network transmission path, which can achieve a balance between the transmission efficiency and the control energy consumption in the signal transmission, and obtain a more reasonable transmission mode planning.

[0085] In one embodiment, the signal processing module includes:

[0086] A signal conversion submodule, used for converting the received monitoring signal into monitoring digital information;

[0087] The data marking submodule is used to generate time stamp information and associate the time stamp information with the monitoring digital information to form a time stamp for the monitoring digital information;

[0088] The data storage submodule is used to store the timestamp information together with the monitoring digital information.

[0089] The working principle and beneficial effects of the above technical solution are as follows: this solution realizes digital control by converting the received monitoring signal into monitoring digital information; by generating timestamp information and associating the timestamp information with the monitoring digital information to form a time mark of the monitoring digital information, the two are stored together, which can ensure the convenience of data management. In addition, it can also provide a good foundation for subsequent analysis and processing.

[0090] In one embodiment, the monitoring management module includes:

[0091] The graph drawing submodule is used to mark the corresponding monitoring digital information in the coordinate system according to the storage time of the monitoring digital information, and to connect the same type of monitoring digital information according to the time sequence to form a corresponding monitoring curve;

[0092] The threshold setting submodule is used to set corresponding upper and lower thresholds for various types of monitoring digital information. The upper and lower thresholds are marked respectively by straight lines parallel to the time coordinate axis in the coordinate system, and the position between the two straight lines corresponding to the upper and lower thresholds is used to represent the normal range of the corresponding monitoring digital information;

[0093] The operation cycle analysis submodule is used to segment the monitoring curve according to different durations to obtain monitoring segments, and compare the similarity between monitoring segments of the same length. If the similarity of all monitoring segments corresponding to a certain duration exceeds the set similarity threshold, the duration corresponding to the monitoring segment is used as the operation cycle;

[0094] The warning submodule is used to analyze the monitoring curve according to the upper threshold, the lower threshold and the operation cycle, and issue a warning message if the monitoring digital information exceeds the normal range or does not conform to the law of the operation cycle;

[0095] The visualization submodule is used to display the monitoring curve, the two straight lines corresponding to the upper threshold and the lower threshold in the coordinate system by using rendering technology, and to display the operation cycle and warning information.

[0096] The working principle and beneficial effects of the above technical scheme are as follows: this scheme represents the monitoring digital information in a curve in a coordinate system according to time, and also linearizes the set upper and lower thresholds. With the help of visual display, it is possible to more intuitively observe that the monitoring digital information exceeds the normal range; the periodic law of changes in the monitoring curve is determined through operation cycle analysis, and on this basis, a cycle compliance analysis is performed to determine whether there are changes that break through the operation cycle, and corresponding warnings are issued for situations where the monitoring digital information exceeds the normal range or does not conform to the operation cycle law. This can achieve more comprehensive system monitoring and more sensitive detection of possible abnormal situations, so that necessary measures can be taken in time to maintain the stability of system operation.

[0097] In one embodiment, the operation cycle analysis submodule includes:

[0098] A line segment moving unit, used for moving one of the monitoring line segments according to the time difference between the two monitoring line segments on the monitoring curve, so that the two monitoring line segments are located at the same time in the coordinate system;

[0099] The comparison unit is used to calculate the mean distance between corresponding points on two monitoring line segments, and then calculate the mean deviation between the distance of each corresponding point and the mean distance, and use the inverse of the mean deviation as the similarity of the two monitoring line segments. The similarity is compared with a set similarity threshold to determine whether the similarity exceeds the set similarity threshold.

[0100] The working principle and beneficial effects of the above technical solution are as follows: the solution simplifies the basis for similarity comparison of the two monitoring line segments by moving one of the two monitoring line segments in the coordinate system according to the time difference; then the distance calculation of each corresponding point is adopted, and the inverse of the mean deviation from the mean distance is used as the similarity of the two monitoring line segments, which is compared with the set similarity threshold to determine whether the similarity exceeds the set similarity threshold, thereby realizing quantitative analysis of the similarity judgment of the two monitoring line segments, avoiding the influence of human factors to the greatest extent, improving the reliability and credibility of the analysis, thereby preventing misjudgment, and having the following advantages: It is beneficial to maintain the stability of system operation; the segmentation time of the monitoring segment can be 24 hours, one week, a fixed number of days or one year, etc.; it can also identify holidays through network communication, analyze the holiday characteristics based on the historical data of the monitoring digital information, and divide the holiday monitoring digital information by the non-holiday to obtain the holiday coefficient (for example, holiday coefficient = holiday monitoring digital information / non-holiday monitoring digital information); on this basis, when analyzing the operating cycle rules, the holiday coefficient is taken into account when encountering holidays, and the similarity calculation analysis is corrected to avoid misjudgment caused by the influence of holiday conditions.

[0101] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A remote self-monitoring system based on two-line IP, characterized in that: It includes power supply and acquisition module, signal transmission module, signal processing module and monitoring management module; The power supply and acquisition module is used to form a local signal acquisition network by connecting multiple dual-port Ethernet switches in series, and the dual-port Ethernet switches communicate with local devices and monitor to obtain monitoring signals; The power supply and acquisition module includes a power switch submodule, and the power switch submodule is electrically connected to the power supply; The dual-port Ethernet switch and power switch submodule are connected in series in sequence using twisted pair cables based on 10BASE-T1L; A signal transmission module, used to remotely transmit each monitoring signal to a signal processing module set in the cloud; The signal processing module is used to process the received monitoring signal, convert it into monitoring digital information, and store it; The monitoring management module is used to analyze the monitoring digital information and implement monitoring management according to the analysis results; The signal transmission module includes: The signal amplification submodule is used to detect the initial signal strength of the monitoring signal and amplify the monitoring signal according to the deviation between the initial signal strength and a preset strength threshold; The encryption processing submodule is used to encrypt the monitoring signal using a set encryption algorithm; The transmission decision submodule is used to determine the network transmission path of the monitoring signal according to the path optimization strategy and implement network transmission of the encrypted monitoring signal; The transmission decision submodule includes: A node information acquisition unit, used to acquire node information of available network nodes, the node information including node transmission efficiency and node operation energy consumption; A path planning unit, used to implement preliminary planning of network transmission paths according to available network nodes to obtain multiple initial planning paths; The path optimization selection unit is used to calculate the average node transmission efficiency of each initial planning path according to the node information of the available network nodes involved in the initial planning path, and calculate the inverse value of the total value of the node operation energy consumption as the energy consumption coefficient, and combine the set transmission efficiency weight and energy consumption weight to solve the weight and value of the average node transmission efficiency and the energy consumption coefficient, and adopt the initial planning path with the largest weight and value as the network transmission path; The transmission execution unit is used to implement network transmission of the encrypted monitoring signal using a network transmission path, and monitor the transmission dynamic information of the available network nodes involved in the network transmission path.

2. The two-wire IP-based remote self-monitoring system according to claim 1 is characterized in that: The power supply and acquisition module includes: The power regulation submodule is used to manage the power supply of the set main power supply and auxiliary power supply. When the main power supply monitoring is abnormal, the auxiliary power supply is switched to replace the main power supply to provide the operating power supply; The signal filtering submodule is used to filter the monitoring signal using a filter to eliminate noise signal interference through filtering.

3. The two-wire IP-based remote self-monitoring system according to claim 1 is characterized in that: The power supply and acquisition module is provided with a signal coupling circuit, which includes a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, an inductor L1, an inductor L2, an inductor L3, an inductor L4, an Ethernet transceiver PHY1, an Ethernet transceiver PHY2, a powered device PD and a power switch submodule; The Ethernet transceiver PHY1 is connected to the negative electrode of the capacitor C1 and the positive electrode of the capacitor C2 respectively, the positive electrode of the capacitor C1 is connected to one end of the inductor L1, the other end of the inductor L1 is connected to the power port of the powered device PD, the negative electrode of the capacitor C2 is connected to one end of the inductor L2, and the ground end of the powered device PD and the other end of the inductor L2 are grounded; The Ethernet transceiver PHY2 is connected to the negative electrode of the capacitor C3 and the positive electrode of the capacitor C4 respectively, the positive electrode of the capacitor C3 is connected to one end of the inductor L3, the other end of the inductor L3 is connected to the output port of the power switch submodule, the negative electrode of the capacitor C4 is connected to one end of the inductor L4, and the ground end of the power switch submodule and the other end of the inductor L4 are grounded; The positive electrode of the capacitor C1 is connected to the positive electrode of the capacitor C3 , and the negative electrode of the capacitor C2 is connected to the negative electrode of the capacitor C4 .

4. The two-wire IP-based remote self-monitoring system according to claim 3 is characterized in that: The signal coupling circuit is configured with an echo processing circuit, which includes a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R1, an inductor L5, an inductor L6 and an inductor L7; One end of the inductor L6, the positive electrode of the capacitor C9 and the positive electrode of the capacitor C10 are respectively connected to the positive electrode of the power supply, the other end of the inductor L6 is respectively connected to the positive electrode of the capacitor C6, the positive electrode of the capacitor C8 and one end of the inductor L5, the negative electrode of the capacitor C6 is respectively connected to the positive electrode of the capacitor C5 and one end of the resistor R1, the negative electrode of the capacitor C5 and the other end of the resistor R1 are both connected to the positive electrode of the capacitor C7, the negative electrode of the capacitor C7, the other end of the inductor L5 and the negative electrode of the capacitor C8 are all connected to one end of the inductor L7, the other end of the inductor L7, the negative electrode of the capacitor C9 and the negative electrode of the capacitor C10 are grounded.

5. The two-wire IP-based remote self-monitoring system according to claim 1 is characterized in that: The signal processing module includes: A signal conversion submodule, used for converting the received monitoring signal into monitoring digital information; The data marking submodule is used to generate time stamp information and associate the time stamp information with the monitoring digital information to form a time stamp for the monitoring digital information; The data storage submodule is used to store the timestamp information together with the monitoring digital information.

6. The two-wire IP-based remote self-monitoring system according to claim 1 is characterized in that: The monitoring management module includes: The graph drawing submodule is used to mark the corresponding monitoring digital information in the coordinate system according to the storage time of the monitoring digital information, and to connect the same type of monitoring digital information according to the time sequence to form a corresponding monitoring curve; The threshold setting submodule is used to set corresponding upper and lower thresholds for various types of monitoring digital information. The upper and lower thresholds are marked respectively by straight lines parallel to the time coordinate axis in the coordinate system, and the position between the two straight lines corresponding to the upper and lower thresholds is used to represent the normal range of the corresponding monitoring digital information; The operation cycle analysis submodule is used to segment the monitoring curve according to different durations to obtain monitoring segments, and compare the similarity between monitoring segments of the same length. If the similarity of all monitoring segments corresponding to a certain duration exceeds the set similarity threshold, the duration corresponding to the monitoring segment is used as the operation cycle. The warning submodule is used to analyze the monitoring curve according to the upper threshold, the lower threshold and the operation cycle, and issue a warning message if the monitoring digital information exceeds the normal range or does not conform to the law of the operation cycle; The visualization submodule is used to display the monitoring curve, the two straight lines corresponding to the upper threshold and the lower threshold in the coordinate system by using rendering technology, and to display the operation cycle and warning information.

7. The two-wire IP-based remote self-monitoring system according to claim 6 is characterized in that: The operation cycle analysis submodule includes: A line segment moving unit, used for moving one of the monitoring line segments according to the time difference between the two monitoring line segments on the monitoring curve, so that the two monitoring line segments are located at the same time in the coordinate system; The comparison unit is used to calculate the mean distance between corresponding points on two monitoring line segments, and then calculate the mean deviation between the distance of each corresponding point and the mean distance, and use the inverse of the mean deviation as the similarity of the two monitoring line segments. The similarity is compared with a set similarity threshold to determine whether the similarity exceeds the set similarity threshold.

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