Wireless current monitoring device for hot-line work of transformer substation

Abstract

The invention discloses a wireless current monitoring device for hot-line work of a transformer substation, and relates to the technical field of transformer substations. Comprising a leading body and a collecting body; the detection unit is arranged in the main guide machine body, the handles are arranged on the two sides of the main guide machine body, and the monitoring assembly is arranged on the main guide machine body; the acquisition unit is arranged in an acquisition machine body, and the data acquisition assembly is arranged on the acquisition machine body. The device can broadcast a current value in a timed voice manner according to set interval time, gives an alarm prompt when the current value reaches a set current threshold value, realizes data return through wireless transmission equipment, ensures that an operator and a worker in charge can monitor the current of a cable in real time, and can confirm that a current secondary loop in operation is always kept normal at any time; the safety of hot-line work is greatly guaranteed, the working efficiency is improved, and the problems that the current data cannot be monitored in real time through manual operation and the measured data cannot be digitalized are solved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer substations, and in particular to a wireless current monitoring device for live working in transformer substations. Background Art

[0002] In the live operation of the secondary circuit of the current transformer, manual operation is often required to use a clamp meter to repeatedly measure the current value of the secondary circuit, and real-time monitoring of the current data cannot be achieved. As a result, during the operation, the operator cannot judge whether the shunt remains normal based on the real-time current data, which increases the risk to personnel and equipment during the operation and poses a major safety hazard. Originally, four people were required to carry out the live current sealing work (two people in the main control room and two people on site, usually one person operating and one person monitoring), resulting in a waste of human resources. Especially in tasks that are simple to operate and highly repetitive, collaboration among multiple people leads to increased communication costs, affecting work efficiency. Summary of the invention

[0003] In view of the problems existing in the existing wireless current monitoring devices for live working in substations, the present invention is proposed.

[0004] Therefore, the present invention provides a wireless current monitoring device for live operation in a substation, the purpose of which is to solve the problem that manual operation cannot monitor the current data in real time and digitize the measured data.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a wireless current monitoring device for live operations in a substation, comprising a main body and a collection body; a detection unit, the detection unit is arranged in the main body, handles are arranged on both sides of the main body, and a monitoring component is arranged on the main body; a collection unit, the collection unit is arranged in the collection body, a data collection component is arranged on the collection body, a wireless receiving module is arranged in the collection body, and the wireless receiving module and the monitoring component are wirelessly connected; and also includes an energy storage unit, the main body and the collection body are both provided with energy storage units.

[0006] As a preferred solution of the wireless current monitoring device for live operation of a substation described in the present invention, the monitoring component includes a voice broadcast module, a wireless transmission module and an intelligent display screen, and the intelligent display screen is arranged at the front part of the main body.

[0007] As a preferred solution of the wireless current monitoring device for live substation operation of the present invention, when the voice broadcast module detects that the current transmitted back by the wireless transmission module exceeds a limit value, an alarm sound is issued.

[0008] As a preferred solution of the wireless current monitoring device for live working in a substation of the present invention, the wireless transmission module transmits control signals through electromagnetic waves to issue instructions to the acquisition unit.

[0009] As a preferred solution of the wireless current monitoring device for live working in a substation of the present invention, the data acquisition component includes a current sensor and a data acquisition interface, and the data acquisition interface is plugged and connected with a transformer.

[0010] As a preferred solution of the wireless current monitoring device for live working in a substation of the present invention, the data acquisition interface is connected to the secondary circuit of the current transformer to collect the current value of the secondary circuit.

[0011] As a preferred solution of the wireless current monitoring device for live operations in a substation described in the present invention, the current signal detected by the current sensor is very weak, and is amplified and filtered by a signal conditioning circuit. The conditioned signal is converted into a format suitable for digital processing and sent to the detection unit through a wireless receiving module.

[0012] As a preferred solution of the wireless current monitoring device for live working in a substation of the present invention, wherein: the energy storage unit comprises a lithium battery, a charging port and a power switch;

[0013] The lithium battery is connected to each module requiring power through the circuits in the main body and the collection body.

[0014] As a preferred solution of the wireless current monitoring device for live working in a substation of the present invention, the charging port is connected to a lithium battery via a charging circuit, and the lithium battery is connected to a power switch via a circuit.

[0015] The beneficial effects of the present invention are as follows: the current value can be announced by voice at set intervals; when the set current threshold is reached, an alarm is issued; and data is transmitted back through wireless transmission equipment, ensuring that operators and work supervisors can monitor the cable current in real time and can always confirm that the current secondary circuit of the operation remains normal, greatly ensuring the safety of live operations and improving work efficiency.

[0016] Another object of the present invention is to provide a method for monitoring wireless current during live operation in a substation, the purpose of which is to simplify the use process of the equipment and improve work efficiency.

[0017] In order to solve the above technical problems, the present invention provides the following technical solutions: a data acquisition body is installed at the current transformer position, and its data acquisition component starts to monitor the current value of the secondary circuit of the current transformer in real time;

[0018] The conditioned signal transmits data to the monitoring component through the wireless receiving module;

[0019] The smart display screen monitors real-time current data. When the current value exceeds the preset safety threshold, the voice broadcast module will sound an alarm to remind the operator to pay attention to safety.

[0020] The beneficial effects of the present invention are as follows: by setting up the main body and the collection body, the problem that manual operation cannot monitor the real-time current data in real time, and the measured data can be digitized. After using the device, only two people are needed. After the two people connect the tester at the control room, they can go to the scene to perform the sealing current operation and can monitor in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The figure is a schematic diagram of the overall structure of the wireless current monitoring device for live working in a substation according to the present invention.

[0023] Figure 2 The figure is a schematic diagram of the internal structure of the wireless current monitoring device for live working in a substation according to the present invention.

[0024] Figure 3 It is a schematic diagram of a top view of a wireless current monitoring device for live working in a substation according to the present invention.

[0025] Figure 4 The present invention is a flowchart of the wireless current monitoring device for live working in a substation. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1, reference Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a wireless current monitoring device for live working in a substation, comprising a main body 100; a detection unit 300, the detection unit 300 is arranged in the main body 100, handles 301 arranged on both sides of the main body 100, and a monitoring component 302 arranged on the main body 100;

[0031] Furthermore, the main body 100 and the collection body 200 are both made of lightweight plastic material, which is both lightweight and durable and suitable for portable devices. The main body 100 is designed as a square box. This geometric shape provides stable support and a larger internal space, which is convenient for integrating various electronic components. The rounded corners on all sides can reduce the risk of damage during accidental impacts, while also providing a better grip.

[0032] Among them, holes that meet the functional requirements of the device are set at the upper end of the main body 100. These holes are used to install various sensors, antennas, data interfaces or other necessary external connections. The handle 301 is designed as a C-type structure. This shape is convenient for the user to hold and provides a good operating experience. The handle 301 is also made of plastic material, and the overall four sides are rounded, which not only enhances durability, but also improves the comfort of the user when holding. The design of the handle 301 is ergonomic, easy to hold and operate, and reduces hand fatigue during long-term use. The handle 301 is fixed to the main body 100 by screw fastening to ensure that the handle 301 will not loosen or fall off during use.

[0033] Furthermore, the voice broadcast module 302a uses intelligent voice technology and can issue a human voice alarm. When the monitored current value exceeds the preset safety limit, it will automatically issue an alarm to remind the operator of potential dangers. The use of human voice alarms can convey emergency situations more intuitively and is more likely to attract the operator's attention than simple buzzers or light signals.

[0034] The wireless transmission module 302b is responsible for wireless transmission of control signals through electromagnetic waves. It can transmit data in real time, ensuring that the instructions of the handheld module are conveyed to the terminal acquisition device without delay. The real-time transmission without delay ensures the timeliness and accuracy of the operation, allowing the operator to quickly respond to any abnormal situation detected.

[0035] The smart display screen 302c is an integrated intelligent all-in-one machine with a built-in control chip that can display real-time data and operation interface, while allowing operators to perform various actions on the handheld module. The built-in control chip makes the display screen not just a passive display device, but an intelligent unit that can actively process data and perform operations.

[0036] During use, the wireless transmission module 302b automatically or manually establishes a connection with the wireless receiving module 402 of the acquisition body 200. After the connection is successful, the wireless transmission module 302b receives the data from the acquisition body 200 and sends a control signal to the terminal acquisition device. The data acquisition component 401 of the acquisition body 200 monitors the current value of the secondary circuit of the current transformer 401c in real time. The monitored data is transmitted to the wireless transmission module 302b of the main body 100 through the wireless receiving module 402. The data received by the wireless transmission module 302b is sent to the built-in control chip of the smart display screen 302c, and The real-time current value is displayed in a graphical or digital form on the smart display screen 302c. When the current value displayed on the smart display screen 302c exceeds the preset safety limit value, the control chip activates the voice broadcast module 302a, and the voice broadcast module 302a issues a human voice alarm to remind the operator to pay attention to the current abnormality. The operator determines whether to take action based on the data displayed on the smart display screen 302c and the alarm of the voice broadcast module 302a. The operator can operate through the user interface on the smart display screen 302c, such as adjusting the current threshold, querying historical data, or sending instructions to the terminal acquisition device.

[0037] Example 2, reference Figure 1 - Figure 3 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that it includes a collection body 200, a collection unit 400, the collection unit 400 is arranged in the collection body 200, a data collection component 401 arranged on the collection body 200, a wireless receiving module 402 arranged in the collection body 200, and the wireless receiving module 402 is wirelessly connected to the monitoring component 302;

[0038] It also includes an energy storage unit 500 , and the main body 100 and the collection body 200 are both provided with the energy storage unit 500 .

[0039] Furthermore, the current sensor 401a is a device that can sense the current passing through the wire and convert it into a usable output signal for measuring the current in the main circuit without direct contact with the high-voltage current. The current sensor 401a monitors the current value in the secondary circuit of the current transformer 401c in real time and converts the sensed current into a voltage signal. The original signal collected by the current sensor 401a is very weak, and is amplified and filtered by the signal conditioning circuit to improve the quality and availability of the signal, and convert the analog signal into a digital signal for subsequent digital processing and wireless transmission. The data acquisition interface 401b is a bridge between the current sensor 401a and the transformer 401c. The wireless receiving module 402 is responsible for receiving the wireless control signal from the monitoring component 302. The control signal may include configuration instructions, query requests or other control commands for remotely controlling the operation of the data acquisition module.

[0040] Furthermore, both the main body 100 and the collection body 200 are provided with an energy storage unit 500. The lithium battery 501 is the core of the energy storage unit 500. It stores electrical energy to provide the required power for the device. The lithium battery 501 has the advantages of high energy density, long life and low self-discharge rate, and is suitable for use as a power source for portable devices. The charging port 502 is an interface for connecting an external charger and the lithium battery 501. Electrical energy is transmitted from an external power source to the lithium battery 501. The charging port 502 is equipped with a protection circuit to prevent potential dangers such as overcharging, overdischarging, overheating and short circuit. The power switch 503 is used to control the connection between the lithium battery 501 and the device circuit, and the user turns on or off the power of the device;

[0041] The charging port 502 is connected to the lithium battery 501 through a charging circuit. When an external charger is connected to the charging port 502, the charging management chip controls the current and voltage to ensure that the lithium battery 501 is safely charged. The lithium battery 501 is connected to the power switch 503 through a circuit. The power switch 503 is located between the lithium battery 501 and the power-consuming part of the device to control the flow of current. The connection of the entire energy storage unit 500 also includes a protection circuit to ensure that the lithium battery 501 and the device can be protected from damage under abnormal circumstances.

[0042] During use, the current sensor 401a senses the current in the main circuit and converts it into a voltage signal. The current signal detected by the current sensor 401a is very weak and is amplified and filtered by the signal conditioning circuit. The conditioned signal is converted into a format suitable for digital processing and sent to the monitoring component 302 through the wireless receiving module 402.

[0043] The remaining structures are the same as those of Example 1.

[0044] Example 3, reference Figure 4, which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: compared with embodiment 2, further, a method for monitoring wireless current during live operation of a substation is provided; and the following steps;

[0045] The data acquisition body 200 is installed at the position of the current transformer 401c, and its data acquisition component 401 starts to monitor the current value of the secondary circuit of the current transformer 401c in real time;

[0046] The conditioned signal transmits data to the monitoring component 302 via the wireless receiving module 402;

[0047] The smart display screen 302c monitors real-time current data. When the current value exceeds a preset safety threshold, the voice broadcast module 302a will sound an alarm to remind the operator to pay attention to safety.

[0048] The remaining structure is the same as that of Example 2.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wireless current monitoring device for live working in a substation, characterized by: include, A leading organism (100) and a collecting organism (200); A detection unit (300), the detection unit (300) being arranged in a main engine body (100), handles (301) being arranged on both sides of the main engine body (100), and a monitoring component (302) being arranged on the main engine body (100); A collection unit (400), the collection unit (400) being arranged in a collection body (200), a data collection component (401) arranged on the collection body (200), a wireless receiving module (402) arranged in the collection body (200), and the wireless receiving module (402) and the monitoring component (302) being wirelessly connected; It also includes an energy storage unit (500), and the main engine body (100) and the collection engine body (200) are both provided with the energy storage unit (500).

2. The wireless current monitoring device for live working in substation according to claim 1 is characterized by: The monitoring component (302) comprises a voice broadcast module (302a), a wireless transmission module (302b) and an intelligent display screen (302c), and the intelligent display screen (302c) is arranged at the front of the main body (100).

3. The wireless current monitoring device for live working in substation according to claim 2 is characterized by: When the voice broadcast module (302a) detects that the current transmitted back by the wireless transmission module (302b) exceeds a limited value, an alarm sound is issued.

4. The wireless current monitoring device for live working in substation according to claim 3 is characterized by: The wireless transmission module (302b) transmits control signals via electromagnetic waves to issue instructions to the collection unit (400).

5. The wireless current monitoring device for live working in substation according to claim 4 is characterized in that: The data acquisition component (401) comprises a current sensor (401a) and a data acquisition interface (401b), and the data acquisition interface (401b) is plug-connected with a mutual inductor (401c).

6. The wireless current monitoring device for live working in substation according to claim 5 is characterized by: The data acquisition interface (401b) is connected to the secondary circuit of the current transformer (401c) to collect the current value of the secondary circuit.

7. The wireless current monitoring device for live working in substation according to claim 6 is characterized by: The current signal detected by the current sensor (401a) is very weak and is amplified and filtered by a signal conditioning circuit. The conditioned signal is converted into a format suitable for digital processing and sent to the detection unit (300) via a wireless receiving module (402).

8. The wireless current monitoring device for live working in substation according to claim 7 is characterized by: The energy storage unit (500) comprises a lithium battery (501), a charging port (502) and a power switch (503); The lithium battery (501) is connected to each module requiring power through the circuits in the main body (100) and the collection body (200).

9. The wireless current monitoring device for live working in substation according to claim 8, characterized in that: The charging port (502) is connected to the lithium battery (501) via a charging circuit, and the lithium battery (501) is connected to the power switch (503) via a circuit.

10. A method for monitoring wireless current during live working in a substation, characterized in that: A wireless current monitoring device for live working in a substation comprising any one of claims 1 to 9; And the following steps; The data acquisition body (200) is installed at the position of the current transformer (401c), and its data acquisition component (401) starts to monitor the current value of the secondary circuit of the current transformer (401c) in real time; The conditioned signal transmits data to the monitoring component (302) via a wireless receiving module (402); The intelligent display screen (302c) monitors real-time current data, and when the current value exceeds a preset safety threshold, the voice broadcast module (302a) will sound an alarm to remind the operator to pay attention to safety.

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