Current signal detection system

Abstract

The present application relates to the technical field of fault monitoring of power systems, and relates to a current signal detection system. The current signal detection system comprises: at least two current signal detection units, wherein the current signal detection units are respectively arranged at different positions of a target detection cable in a power system and are electrically connected by means of the target detection cable, each current signal detection unit is used for acquiring a target current signal flowing through the current signal detection unit in the target detection cable so as to determine a current signal detection result of the target detection cable on the basis of the target current signal corresponding to the current signal detection unit, and the current signal detection result comprises an abnormal working state of the target detection cable. The current signal detection system can improve the fault monitoring efficiency of the power system.

Description

Current signal detection system Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to a current signal detection system. Background Art

[0002] In the field of fault monitoring of power systems, it is necessary to collect and detect data from power equipment or lines in the power system, such as current data, to evaluate the current system operating status so that remedial measures can be taken in a timely manner when system data is abnormal.

[0003] However, the current monitoring method for system data anomalies requires an engineer to be on duty, use data detection tools to measure at designated locations, and record data. The data collection efficiency is low, resulting in poor fault monitoring results for the power system. Summary of the Invention

[0004] Based on this, it is necessary to provide a current signal detection system that can improve the fault monitoring efficiency of the power system in order to address the above technical problems.

[0005] The present application provides a current signal detection system, which includes:

[0006] At least two current signal detection units, each of which is disposed at a different position of a target detection cable in the power system; each of the current signal detection units is electrically connected via the target detection cable;

[0007] Among them, the current signal detection unit is used to obtain the target current signal flowing through the current signal detection unit in the target detection cable, so as to determine the current signal detection result of the target detection cable according to the target current signal corresponding to each current signal detection unit; the current signal detection result includes the abnormal working state of the target detection cable.

[0008] In one embodiment, the current signal detection unit includes:

[0009] At least one detachable functional module; the functional module is used to transmit and collect the target current signal flowing through the current signal detection unit in the target detection cable;

[0010] Wherein, when the target detection cable is an electrical cable, the functional module is a cable module; when the target detection cable is an optical cable, the functional module is an optical cable module; when the target detection cable is a network cable, the functional module is a network module.

[0011] In one embodiment, the current signal detection unit includes:

[0012] Processor; the processor is connected to the functional module, and the processor is used to process the collected target current signal to determine the current signal detection result of the target detection cable.

[0013] In one embodiment, when the target detection cable is an optical cable, the current signal detection unit further includes:

[0014] Photoelectric conversion module; the photoelectric conversion module is connected to the optical cable module and the processor respectively;

[0015] The photoelectric conversion module is used to convert the optical signal in the optical cable module into an electrical signal to determine the target current signal.

[0016] In one embodiment, the current signal detection unit further includes:

[0017] Line state control module; the line state control module is connected to the processor and the functional module;

[0018] The line status control module is used to adjust the line status by setting the connection status of each functional module to transmit the line status to the processor; wherein the line status includes disconnection status, connection status, bypass status, and jumper status.

[0019] In one embodiment, the current signal detection unit further includes:

[0020] A communication module; the communication module is connected to the processor; the communication module is used to communicate with the target device to send the line status and the current signal detection result to the target device;

[0021] The target device is used for a user to view the line status and the current signal detection result, and the target device includes a mobile terminal associated with the current signal detection system.

[0022] In one embodiment, the current signal detection unit further includes:

[0023] A first status indication module; the first status indication module is connected to the processor, and the first status indication module is used to display the line status;

[0024] A second status indication module; the second status indication module is connected to the processor, and the second status indication module is used to display the current signal detection result.

[0025] In one embodiment, each functional module in the current signal detection unit uses a group of target cables as signal input and at least two groups of target cables as signal output, wherein the target cables include three sub-cables and a ground wire, and the phase difference of the transmission signal in each sub-cable is 120 degrees.

[0026] In one embodiment, the current signal detection unit is electrically connected to the target detection cable using a clip;

[0027] The current signal detection unit further includes a clamp spring connection state monitoring module; the clamp spring connection state monitoring module is used to record the working state of the clamp spring.

[0028] In one embodiment, the current signal detection unit further includes:

[0029] An identity authentication module is used to authenticate the identity of the user and to enable the detection function of the current signal detection unit when the identity authentication of the user is successful.

[0030] The above-mentioned current signal detection system includes at least two current signal detection units, each signal detection unit is respectively arranged at a different position of the target detection cable in the power system, and each current signal detection unit is electrically connected through the target detection cable. The current signal detection system of the present application eliminates the process of manual detection and manual data recording by setting current signal detection units at different positions of the same cable and based on the relationship between current values ​​detected by different current signal detection units, thereby improving data acquisition efficiency and situation response speed, and improving the efficiency of fault monitoring for the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a first structural diagram of a current signal detection system according to an embodiment;

[0032] FIG2 is a second structural diagram of a current signal detection system according to an embodiment;

[0033] FIG3 is a schematic diagram of a first structure of a current signal detection unit in one embodiment;

[0034] FIG4 is a second structural diagram of a current signal detection unit in one embodiment. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0036] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions.

[0037] In one embodiment, a current signal detection system is provided, comprising: at least two current signal detection units.

[0038] The signal detection units are respectively arranged at different positions of a target detection cable in the power system, and the current signal detection units are electrically connected via the target detection cable. Specifically, the target detection cable is the cable to be detected.

[0039] The current signal detection unit is used to obtain a target current signal flowing through the current signal detection unit in the target detection cable, and determine the current signal detection result of the target detection cable based on the target current signal corresponding to each current signal detection unit. Specifically, the target current signal can be a directly measured current signal or a current signal obtained by converting the detected optical signal and network signal.

[0040] The current signal detection result includes the abnormal working state of the target detection cable.

[0041] Exemplarily, each signal detection unit is respectively arranged at a different position of the target detection cable in the power system, such as being connected in series at different positions of the same cable. Under normal circumstances where there is no private connection of cables, the currents detected by each signal detection unit are equal. If the detected currents are not equal, there may be an abnormal situation of private connection of cables. At this time, the current signal detection result is determined to be an abnormal working state of the target detection cable, so as to remind the monitoring staff to conduct timely investigation and processing, so as to realize monitoring of the target detection cable.

[0042] In the above-mentioned current signal detection system, the current signal detection system includes at least two current signal detection units, each signal detection unit is respectively arranged at a different position of the target detection cable in the power system, and each current signal detection unit is electrically connected through the target detection cable. The current signal detection system of the present application eliminates the process of manual detection and manual data recording by setting current signal detection units at different positions of the same cable and based on the relationship between current values ​​detected by different current signal detection units, thereby improving data acquisition efficiency and situation response speed, and improving the efficiency of fault monitoring for the power system.

[0043] In one embodiment, the current signal detection unit includes: at least one detachable functional module; the functional module is used to transmit and collect the target current signal flowing through the current signal detection unit in the target detection cable; wherein, when the target detection cable is an electrical cable, the functional module is a cable module; when the target detection cable is an optical cable, the functional module is an optical cable module; when the target detection cable is a network cable, the functional module is a network module.

[0044] In this embodiment, the current signal detection unit includes at least one detachable functional module for transmitting and collecting the target current signal flowing through the current signal detection unit in the target detection cable. By setting different types of functional modules, monitoring of different types of cables is achieved. At the same time, the detachable function of the module is increased, thereby expanding the application scope of fault monitoring for the power system.

[0045] In one embodiment, the current signal detection unit includes: a processor; the processor is connected to the functional module, and the processor is used to process the collected target current signal to determine the current signal detection result of the target detection cable.

[0046] In this embodiment, the current signal detection unit includes a processor, which serves as an information processing center and is connected to various functional modules to process the collected current signal and then analyze the collected current signal to monitor the working condition.

[0047] In one embodiment, when the target detection cable is an optical cable, the current signal detection unit also includes: a photoelectric conversion module; the photoelectric conversion module is connected to the optical cable module and the processor respectively; wherein the photoelectric conversion module is used to convert the optical signal in the optical cable module into an electrical signal to determine the target current signal.

[0048] In this embodiment, the current signal detection unit also includes a photoelectric conversion module, which is connected to the optical cable module and the processor respectively, and is used to convert the optical signal in the optical cable module into an electrical signal to determine the target current signal, thereby realizing the conversion of the optical signal to the electrical signal, facilitating the use of the converted electrical signal for data analysis, and expanding the application scope of fault monitoring for the power system.

[0049] In one embodiment, the current signal detection unit further includes: a line state control module; the line state control module is connected to the processor and the functional module; the line state control module is used to adjust the line state by setting the connection status of each functional module to transmit the line state to the processor; wherein the line state includes a disconnected state, a connected state, a bypass state, and a jumper state.

[0050] Exemplarily, the current signal detection unit includes an operating mechanism or module, which can realize the functions of disconnection, connection, bypass, and jumper.

[0051] In this embodiment, the current signal detection unit also includes a line state control module, which adjusts the line state by setting the connection status of each functional module, so as to transmit the line state to the processor to realize control of the line state, thereby realizing individual control of each current signal detection unit in the current signal detection system, which helps to improve the operating efficiency of the current signal detection system.

[0052] In one embodiment, the current signal detection unit further includes: a communication module; the communication module is connected to the processor; the communication module is used to communicate with the target device to send the line status and current signal detection results to the target device; wherein the target device is used for the user to view the line status and current signal detection results, and the target device includes a mobile terminal associated with the current signal detection system.

[0053] For example, the CPU can be connected to a mobile phone APP to view the status, but the program cannot be modified. The CPU has necessary indicator lights to identify the power status, operating status, and fault status.

[0054] In this embodiment, the current signal detection unit also includes a communication module for sending the line status and current signal detection results to the target device so that the user can view the line status and current signal detection results, thereby realizing communication between each current signal detection unit and the external mobile terminal, and using data communication for data transmission and control, thereby improving the efficiency of fault monitoring of the power system.

[0055] In one embodiment, the current signal detection unit further includes: a first status indication module; the first status indication module is connected to the processor, and the first status indication module is used to display the line status; a second status indication module; the second status indication module is connected to the processor, and the second status indication module is used to display the current signal detection result.

[0056] In this embodiment, a first state indication module and a second state indication module are provided to display the line state and the current signal detection result respectively, thereby improving the intuitiveness of fault monitoring for the power system.

[0057] In one embodiment, each functional module in the current signal detection unit uses a group of target cables as signal input and uses at least two groups of target cables as signal output, wherein the target cables include three sub-cables and a ground wire, and the phase difference of the transmission signal in each sub-cable is 120 degrees.

[0058] For example, a module can only be connected to one set of three-phase line + N line input and at most two sets of three-phase + N line output.

[0059] In one embodiment, the current signal detection unit is electrically connected to the target detection cable using a clamp spring; the current signal detection unit further includes a clamp spring connection status monitoring module; the clamp spring connection status monitoring module is used to record the working status of the clamp spring.

[0060] In this embodiment, a retaining spring is provided at the connection point, and a retaining spring connection status monitoring module is provided at the retaining spring to record and monitor the working status of the retaining spring to ensure the working stability of the current signal detection unit after installation, thereby improving the stability of fault monitoring of the power system.

[0061] In one embodiment, the current signal detection unit further includes: an identity authentication module, which is used to authenticate the identity of the user and to enable the detection function of the current signal detection unit when the identity authentication of the user is successful.

[0062] In this embodiment, the current signal detection unit also includes an identity authentication module for enabling the detection function of the current signal detection unit when the identity authentication is successful, thereby realizing the authentication of the control authority of each current signal detection unit, thereby ensuring the security of fault monitoring of the power system.

[0063] In order to facilitate the understanding of those skilled in the art, FIG1 provides a first structural schematic diagram of a current signal detection system; as shown in FIG1 , I A =I B =I C ; Among them, I A Refers to the current value of unit A, where I B Refers to the current value of unit B, where I C Refers to the current value of unit C. Figure 1 shows that under normal working conditions with only one cable line and no abnormal private circuit, if the current values ​​collected by the various current signal detection units connected in series in the cable are the same, then it is judged that the current signal detection result at this time is that the target detection cable is in a normal working state; if the current values ​​collected by the various current signal detection units connected in series in the cable are different, then it is judged that the current signal detection result at this time is that the target detection cable is in an abnormal working state.

[0064] To facilitate understanding by those skilled in the art, FIG2 provides a second structural schematic diagram of a current signal detection system; as shown in FIG2 , I1=I2+I3; wherein, I1 refers to the current of the input unit A, I1 refers to the current from the output unit A to the load A, and I1 refers to the current from the output unit A to the load B. FIG2 shows that, under normal operating conditions with two cable branches and no abnormal private circuits, the sum of the current values ​​collected by the parallel output branches in the cable of the current signal detection unit is equal to the total current value of the input branch, then the current signal detection result at this time is judged to be that the target detection cable is in a normal working state, otherwise, the current signal detection result at this time is judged to be that the target detection cable is in an abnormal working state.

[0065] To facilitate understanding by those skilled in the art, FIG3 provides a first structural schematic diagram of a current signal detection unit; as shown in FIG3 , the current signal detection unit includes a processor, an electrical module, an optical module, and a network module, wherein the electrical module is used to connect cables, the optical module is used to connect optical fibers, and the network module is used to connect network cables.

[0066] To facilitate understanding by those skilled in the art, FIG4 provides a second structural diagram of a current signal detection unit.

[0067] The current signal detection system is described in detail below using a specific embodiment. It is worth noting that the following description is merely an example and does not limit the application.

[0068] The features of the current signal detection unit include: (1) the current signal detection card is mounted on the guide rail; (2) there is an actuator or photoelectric conversion module inside; (3) the input is an electrical signal that can be received, such as current, voltage, etc., transmitted by a cable, or an optical signal that can be transmitted by an optical fiber, or a network signal that can be transmitted by a communication cable; (4) the output corresponds to (3), that is, the output is an electrical signal that can be received, such as current, voltage, etc., transmitted by a cable, or an optical signal that can be transmitted by an optical fiber, or a network signal that can be transmitted by a communication cable; (5) the input and output can be configured modularly; (6) it contains an operating mechanism or module that can realize the functions of disconnection, connection, bypass, and jumper; (7) each intelligent current detection unit includes a CPU ( Commonly known as the brain) and integrated modules; (8) The CPU can be connected to a mobile phone APP to view the status, but the program cannot be modified. The CPU has necessary indicator lights to indicate the power status, operating status, and fault status; (9) The module has indicator lights to indicate the connected status, disconnected status, bypass status, and fault status; (10) A module can only connect to one set of three-phase line + N line input and a maximum of two sets of three-phase + N line output; (11) The intelligent current detection unit uses a spring clamp connection; (12) The unit has temperature, sound, and humidity measurement functions, as well as the status of the spring clamp; (13) The unit has external communication functions; (14) Before using the unit, independent and unique identity authentication is required.

[0069] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A current signal detection system, characterized in that: The current signal detection system comprises: At least two current signal detection units, each of which is disposed at a different position of a target detection cable in the power system; each of the current signal detection units is electrically connected via the target detection cable; The current signal detection unit is used to obtain the target current signal flowing through the current signal detection unit in the target detection cable, so as to determine the current signal detection result of the target detection cable according to the target current signal corresponding to each current signal detection unit; the current signal detection result includes the abnormal working state of the target detection cable; The current signal detection unit comprises: At least one detachable functional module; the functional module is used to transmit and collect the target current signal flowing through the current signal detection unit in the target detection cable; Wherein, when the target detection cable is an electric cable, the functional module is a cable module; when the target detection cable is an optical cable, the functional module is an optical cable module; when the target detection cable is a network cable, the functional module is a network module; The current signal detection unit comprises: Processor; the processor is connected to the functional module, and the processor is used to process the collected target current signal to determine the current signal detection result of the target detection cable; The current signal detection unit also includes: A line state control module; the line state control module is connected to the processor and the functional module; The line status control module is used to adjust the line status by setting the connection status of each functional module to transmit the line status to the processor; wherein the line status includes a disconnection state, a connection state, a bypass state and a jumper state.

2. The current signal detection system according to claim 1, characterized in that: In the case where the target detection cable is an optical cable, the current signal detection unit further includes: A photoelectric conversion module; the photoelectric conversion module is connected to the optical cable module and the processor respectively; Wherein, the photoelectric conversion module is used to convert the optical signal in the optical cable module into an electrical signal to determine the target current signal.

3. The current signal detection system according to claim 1, characterized in that: The current signal detection unit also includes: A communication module; the communication module is connected to the processor; the communication module is used to communicate with the target device to send the line state and the current signal detection result to the target device; The target device is used for a user to view the line status and the current signal detection result, and the target device includes a mobile terminal associated with the current signal detection system.

4. The current signal detection system according to claim 1, characterized in that: The current signal detection unit also includes: A first status indication module; the first status indication module is connected to the processor, and the first status indication module is used to display the line status; A second state indicating module; the second state indicating module is connected to the processor, and the second state indicating module is used to display the current signal detection result.

5. The current signal detection system according to claim 1, characterized in that: Each functional module in the current signal detection unit uses a group of target cables as signal input and uses at least two groups of target cables as signal output, wherein the target cable includes three sub-cables and a ground wire, and the phase difference of the transmission signal in each sub-cable is 120 degrees.

6. The current signal detection system according to claim 1, characterized in that: The current signal detection unit is electrically connected to the target detection cable by using a clamp spring; The current signal detection unit further comprises a clamp spring connection state monitoring module; the clamp spring connection state monitoring module is used to record the working state of the clamp spring.

7. The current signal detection system according to claim 6, characterized in that: The current signal detection unit also includes: An identity authentication module, wherein the identity authentication module is used to authenticate the user and to enable the detection function of the current signal detection unit when the identity authentication of the user is successful.

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