CN110780106A - A kind of surge protector monitoring method and device - Google Patents

Abstract

Embodiments of the present invention provide a device and method for monitoring a surge protector, wherein a device for monitoring a surge protector includes: a monitoring module for monitoring parameters related to the surge protector, a control module, a communication module, a display module, power supply module and storage module, the monitoring module, the communication module, the display module, the power supply module and the storage module are respectively connected with the control module; the monitoring module includes a voltage monitoring unit, a current Monitoring unit, temperature monitoring unit, ambient temperature and humidity monitoring unit, remote signal monitoring unit, lightning current monitoring unit and grounding state monitoring unit. Through the monitoring of the surge protector, the working state of the surge protector can be monitored in real time, the real-time monitoring data can be saved and uploaded, and an alarm can be given when a fault occurs and the cause of the fault can be analyzed.

Description

A kind of surge protector monitoring method and device

Technical field 1

The invention relates to the technical field of surge protectors, in particular to a surge protector monitoring method and a surge protector monitoring device.

Background technique

On average, there are more than 2,000 thunderstorms going on at any one time, including fires, explosions, building damage, human and animal casualties, and equipment damage. After a lightning strike, the formed electromagnetic pulse will penetrate into the equipment system through active lines, various signal transmission lines, antenna feeder lines, cables entering the system, and conductors of bridges, causing failure or permanent damage to electronic equipment. At present, the common lightning protection method is to install a surge protector in the external circuit of the electronic equipment, and discharge the lightning current into the ground on the intrusion channel, so as to achieve the purpose of protecting the electronic equipment and personal safety. However, when the surge protector itself fails, it may cause a short circuit or damage to the protected equipment.

The existing monitoring method of the surge protector is to check the surge protector on site by maintenance personnel, which requires a lot of monitoring equipment and a lot of labor costs. If there are many protection points, it is impossible to achieve multiple points at the same time. monitoring.

SUMMARY OF THE INVENTION

In view of the above problems, embodiments of the present invention are proposed to provide a surge protector monitoring method and a corresponding surge protector monitoring device that overcome the above problems or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present invention discloses a device for monitoring a surge protector, including: a monitoring module, a control module, a communication module, a display module, a power supply module and a storage module for monitoring parameters related to the surge protector , the monitoring module, the communication module, the display module, the power supply module and the storage module are respectively connected with the control module;

The monitoring module includes a voltage monitoring unit, a current monitoring unit, a temperature monitoring unit, an ambient temperature and humidity monitoring unit, a remote signal monitoring unit, a lightning current monitoring unit and a grounding state monitoring unit.

Further, the voltage monitoring unit includes a voltage transformer and a first arithmetic circuit subunit, the voltage transformer is connected in parallel with the surge protector, and the voltage transformer is connected with the first arithmetic circuit subunit , the first arithmetic circuit subunit is connected to the control module.

Further, the current monitoring unit includes a current transformer and a second arithmetic circuit subunit, the current transformer is connected in series with the surge protector, and the current transformer is connected with the second arithmetic circuit subunit , the second arithmetic circuit subunit is connected with the control module.

Further, the temperature monitoring unit includes a temperature sensor and a first resistor for monitoring the surface temperature of the surge protector, and the temperature sensor and the first resistor are connected in series between the power supply module and the ground potential. time, and the first resistor is connected in parallel with the control module.

Further, the environmental temperature and humidity monitoring unit includes a temperature and humidity sensor, and the temperature and humidity sensor is respectively connected to the power supply module and the control module.

Further, the surge protector includes a remote signaling interface, the remote signaling monitoring unit includes a second resistor and a third resistor, and the remote signaling interface, the second resistor and the third resistor are connected in series with the between the power supply module and the control module.

Further, the lightning current monitoring unit includes a follower, a converter, a comparator and a holding circuit subunit.

The embodiment of the present invention discloses a method for monitoring a surge protector. The above-mentioned device for monitoring a surge protector is used for real-time monitoring. Temperature and humidity, remote signaling, lightning current and grounding status are monitored to obtain monitoring data, and analyzed through the control module, and the analysis results are displayed on the display module, which is used to display lightning current monitoring values, grounding status, and surge protection. Whether the device is faulty and the cause of the fault, the monitoring data is uploaded in real time through the communication module.

The embodiments of the present invention have the following advantages: by monitoring the surge protector, the working state of the surge protector can be monitored in real time, the real-time monitoring data can be saved and uploaded, and an alarm can be given when a fault occurs and the cause of the fault can be analyzed.

Description of drawings

Fig. 1 is a structural block diagram of a device embodiment of a surge protector monitoring device of the present invention;

2 is a structural block diagram of an embodiment of a voltage monitoring unit of the present invention;

3 is a structural block diagram of an embodiment of a current monitoring unit of the present invention;

4 is a structural block diagram of an embodiment of a temperature monitoring unit of the present invention;

5 is a structural block diagram of an embodiment of an environmental temperature and humidity monitoring unit according to the present invention;

6 is a structural block diagram of an embodiment of a remote signaling monitoring unit of the present invention;

7 is a structural block diagram of an embodiment of a lightning current monitoring unit of the present invention;

8 is a structural block diagram of an embodiment of a grounding state monitoring unit of the present invention;

9 is a structural block diagram of a storage module embodiment of the present invention;

10 is a structural block diagram of an embodiment of a power supply module of the present invention;

FIG. 11 is a structural block diagram of an embodiment of a display module of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

One of the core concepts of the embodiments of the present invention is that, with reference to FIGS. 1-11 , a device for monitoring a surge protector is provided, including: a monitoring module for monitoring parameters related to the surge protector, a control module, a communication module, display module, power supply module and storage module, monitoring module, communication module, display module, power supply module and storage module are respectively connected with control module; monitoring module includes voltage monitoring unit, current monitoring unit, temperature monitoring unit, ambient temperature and humidity monitoring unit, remote signal monitoring unit, lightning current monitoring unit and grounding state monitoring unit. Through the monitoring of the surge protector, the working status of the surge protector can be monitored in real time, the data of the above real-time monitoring can be saved and uploaded, and an alarm can be given when a fault occurs and the cause of the fault can be analyzed.

Referring to FIG. 1, there is shown a structural block diagram of an embodiment of an apparatus for monitoring a surge protector according to the present invention, which may specifically include a monitoring module, a control module, a communication module, a display module, a monitoring module, a control module, a communication module, a display module, a The power supply module and the storage module, the monitoring module, the communication module, the display module, the power supply module and the storage module are respectively connected with the control module; the monitoring module includes a voltage monitoring unit, a current monitoring unit, a temperature monitoring unit, an ambient temperature and humidity monitoring unit, and a remote signal monitoring unit. unit, lightning current monitoring unit and grounding condition monitoring unit.

2, in this embodiment, the voltage monitoring unit includes a voltage transformer and a first arithmetic circuit subunit, the voltage transformer is connected in parallel with the surge protector, and the voltage transformer is connected to the first arithmetic circuit subunit, the first The arithmetic circuit subunit is connected with the control module. The voltage across the 3-way surge protector is monitored by the voltage detection and monitoring unit, and the real-time voltage value across the surge protector is displayed on the display module. When the voltage across the surge protector exceeds the alarm voltage threshold, the display module displays an alarm. In a specific embodiment, the voltage value at both ends of the surge protector is transmitted to the arithmetic circuit sub-unit through the voltage transformer, and then transmitted to the control module. The control module in this embodiment is specifically set as an MCU processor, which is processed by the MCU. The actual voltage value is displayed in the display module after the data processing of the controller. The display module in this embodiment is specifically set as a TFT touch display screen, and finally the data is recorded to the storage module for analysis and viewing.

Referring to FIG. 3, in this embodiment, the current monitoring unit includes a current transformer and a second arithmetic circuit subunit, the current transformer is connected in series with the surge protector, and the current transformer is connected with the second arithmetic circuit subunit, and the second The arithmetic circuit subunit is connected with the control module. The monitoring module monitors the current of the 3-way surge protector, and displays the real-time current value on the display module. When the current value exceeds the alarm current threshold, the leakage current of the surge protector is too high, indicating that the surge protector has been damaged or aged, and the display shows The module displays an alarm. A current transformer is placed on the output line end of the surge protector, and the induced current of the current transformer is transmitted to the MCU processor after passing through the arithmetic circuit, and the current values of several points are selected within the current measurement range for calibration. In a specific embodiment The current measurement range of the MCU is 0-100000μA. After the collected current signal is processed by the MCU processor, the current value will be displayed on the TFT touch screen. And record the data for analysis and viewing.

4, in this embodiment, the temperature monitoring unit includes a temperature sensor and a first resistor for monitoring the surface temperature of the surge protector, the temperature sensor and the first resistor are connected in series between the power supply module and the ground potential, and The first resistor is connected in parallel with the control module. The monitoring module monitors the surface temperature of the 4-way surge protector and compares it with the ambient temperature. When the temperature rise exceeds the preset alarm temperature rise threshold, the display module displays an alarm. A plurality of temperature sensors are respectively attached to various positions on the surface of the surge protector. The temperature sensors are connected in series with a first resistor R1 between the power supply module and the ground potential, and the MCU processor is connected in parallel with the first resistor R1. The resistance value of the temperature sensor will change with the temperature of the surge protector, causing the voltage across the first resistor R1 to change accordingly. The corresponding temperature is displayed in the . And record the data for analysis and viewing.

Referring to FIG. 5 , in this embodiment, the environmental temperature and humidity monitoring unit includes a temperature and humidity sensor, and the temperature and humidity sensor is respectively connected to the power supply module and the control module. The monitoring module monitors the ambient temperature and humidity, and compares it with the temperature of the surge protector. When the temperature rise of the surge protector exceeds the standard allowable range, an alarm is displayed. Place the temperature and humidity sensor in a place that is not affected by the temperature change of the surge protector, connect the temperature and humidity sensor to the power supply module and the ground port, and connect the serial data port of the temperature and humidity sensor to the port of the MCU processor. The temperature sensor will transmit the temperature and humidity information to the MCU processor. After data processing by the MCU processor, the MCU processor will display the temperature and humidity information on the TFT touch screen. And record the data for analysis and viewing.

6 , in this embodiment, the surge protector includes a remote signaling interface, the remote signaling monitoring unit includes a second resistor and a third resistor, and the remote signaling interface, the second resistor, and the third resistor are connected in series with the power supply module and the control module between. Connect to the remote signaling port of the surge protector. When the remote signaling port of the surge protector alarms, the device will display an alarm. Connect the remote signaling interface of the surge protector with the second resistor R2 and the third resistor R3 in series between the power supply VCC and the MCU processor pins. When the remote signaling port is closed, the MCU processor is in a high level state. When the remote signaling port is disconnected, the MCU processor is in a suspended state.

Referring to FIG. 7 , in this embodiment, the lightning current monitoring unit includes a follower, a converter, a comparator and a holding circuit sub-unit. When lightning occurs, lightning current will flow through the surge protector. At this time, the lightning current monitoring module will collect the forward and reverse voltage values of the lightning current flowing through the surge protector, and display them in the display module. . The nominal discharge current value of the surge protector is preset in the MCU processor. When the monitored lightning current value is greater than the preset nominal discharge current value, the MCU processor sends an alarm signal that the device may be damaged. Put the current transformer on the lightning protection grounding wire. When there is lightning current flowing, the current transformer will transmit the induced current to the voltage follower and the circuit with a certain change ratio, and then transmit it to the MCU processor. The MCU processor displays the collected lightning current value on the TFT touch screen; when there is no lightning current, the MCU processor will send a signal to reduce the high-level signal on the voltage holding circuit to a low-level signal .

Referring to FIG. 8 , the grounding state monitoring module in this embodiment is used to monitor whether the grounding state of the grounding wire is intact. Connect an isolated power supply and optocoupler in series between the neutral line and the ground line of the surge protector. The isolated power supply raises the neutral line voltage. The optocoupler is controlled by the MCU processor to be on and off. When the optocoupler is on , the neutral wire to the ground wire has current passing through, when the optocoupler is in the off state, no current flows from the neutral wire to the ground wire; put a current transformer on the ground wire, the current transformer induced current will be amplified to a certain extent After the circuit of multiples, compare it with a fixed voltage value through the comparator. When the current induced by the current transformer is large, the comparator transmits a high-level signal to the MCU processor; when the current induced by the current transformer is small, the comparison The controller transmits the low-level signal to the MCU processor, and then the MCU processor displays the grounding state on the TFT touch screen.

Referring to FIG. 9 , the data storage module in this embodiment specifically adopts a storage chip. When the data collected by the collection circuit unit of the monitoring module is transmitted to the control module, the control module will store the data in the storage chip.

10 , in this embodiment, the power supply module further includes a UPS power supply. When the surge protector monitoring device has power supply, each device in the circuit is driven by the power supply. When the power supply fails, the power supply stops supplying power, and the UPS in the device The power supply continues to power the various devices, and the surge protector monitoring device can still function normally in the event of a power outage.

11 , in this embodiment, the display module is specifically set as a TFT touch display/input module, and the TFT touch display/input module includes a display screen and keys. When the data collected by the circuit is transmitted to the MCU processor, the processor will display the data on the display screen, and the user can select and display the data to be displayed by using the keys.

In the communication module in this embodiment, the monitoring device supports RS485, RS232, network port RJ45, GPRS, WIFI and other wired and wireless port communications. The data in the MCU processor and the memory chip can be sent to the Internet or local area network server to realize data upload.

The control module in this embodiment is specifically an MCU processor, and the MCU processor can analyze whether the surge protector is damaged according to changes in monitoring data of each module. When a lightning current occurs or the voltage acquisition data becomes larger, the current acquisition data temporarily becomes larger, and the temperature acquisition data temporarily becomes larger, which is a normal phenomenon. May be damaged, the MCU processor issues an alarm signal. When no lightning current occurs or the voltage acquisition data does not increase, the current acquisition data becomes larger or the temperature acquisition data becomes larger, indicating that the surge protector may have been damaged, and the MCU processor sends an alarm signal. Input the nominal discharge current value of the surge protector in the surge protector monitoring device. When the monitored lightning current value is greater than the input nominal discharge current value, the MCU processor sends an alarm signal.

A device for monitoring a surge protector proposed in this application comprehensively collects data from multiple aspects such as voltage, current, temperature, remote signaling, lightning current, and grounding status of the surge protector, and supports screen display, data storage and The application of multiple functions such as uploading and power-down normal work integrates multiple advantages such as multi-function, miniaturization, high speed, low power consumption and low cost. Not only the real-time monitoring data is collected, but also the reason for the failure of the surge protector can be judged according to the changes of the collected data, so as to truly realize the intelligent monitoring of the surge protector.

The steps of an embodiment of a method for monitoring a surge protector of the present invention may specifically include: using the above-mentioned device for monitoring a surge protector to perform real-time monitoring, and the monitoring module monitors the voltage, current, temperature, Monitor the ambient temperature and humidity, remote signaling, lightning current and grounding status to obtain monitoring data, and analyze it through the control module, and display the analysis results in the display module. The display module is used to display the monitoring value of lightning current, grounding status, and surge protector. Whether there is a fault and the cause of the fault, the monitoring data is uploaded in real time through the communication module.

It should be noted that, for the sake of simple description, the method embodiments are described as a series of action combinations, but those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequences, because According to embodiments of the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments may be referred to each other.

It should be understood by those skilled in the art that the embodiments of the embodiments of the present invention may be provided as a method, an apparatus, or a computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, CD-ROM, optical storage, and the like.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing terminal equipment to produce a machine that causes the instructions to be executed by the processor of the computer or other programmable data processing terminal equipment Means are created for implementing the functions specified in the flow or flows of the flowcharts and/or the blocks or blocks of the block diagrams.

These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing terminal equipment to operate in a particular manner, such that the instructions stored in the computer readable memory result in an article of manufacture comprising instruction means, the The instruction means implement the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby executing on the computer or other programmable terminal equipment The instructions executed on the above provide steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

Although preferred embodiments of the embodiments of the present invention have been described, additional changes and modifications to these embodiments may be made by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or that there is any such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or terminal device comprising a list of elements includes not only those elements, but also a non-exclusive list of elements. other elements, or also include elements inherent to such a process, method, article or terminal equipment. Without further limitation, an element defined by the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

A method for monitoring a surge protector and a monitoring device for a surge protector provided by the present invention have been described above in detail. In this paper, specific examples are used to illustrate the principles and implementations of the present invention. The above embodiments The description is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. However, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. An apparatus for surge protector monitoring, comprising: the monitoring module, the communication module, the display module, the power supply module and the storage module are respectively connected with the control module;

the monitoring module comprises a voltage monitoring unit, a current monitoring unit, a temperature monitoring unit, an environment temperature and humidity monitoring unit, a remote signaling monitoring unit, a lightning current monitoring unit and a grounding state monitoring unit.

2. The apparatus of claim 1, wherein the voltage monitoring unit comprises a voltage transformer and a first operational circuit subunit, the voltage transformer is connected in parallel with the surge protector, and the voltage transformer is connected with the first operational circuit subunit, and the first operational circuit subunit is connected with the control module.

3. The apparatus of claim 1, wherein the current monitoring unit comprises a current transformer and a second operational circuit subunit, the current transformer is connected in series with the surge protector, and the current transformer is connected with the second operational circuit subunit, and the second operational circuit subunit is connected with the control module.

4. The apparatus of claim 1, wherein the temperature monitoring unit comprises a temperature sensor for monitoring a surface temperature of the surge protector and a first resistor, the temperature sensor and the first resistor are connected in series between the power supply module and a ground potential, and the first resistor is connected in parallel with the control module.

5. The device of claim 1, wherein the environment temperature and humidity monitoring unit comprises a temperature and humidity sensor, and the temperature and humidity sensor is connected with the power supply module and the control module respectively.

6. The apparatus of claim 1, wherein the surge protector device comprises a remote signaling interface, wherein the remote signaling monitoring unit comprises a second resistor and a third resistor, and wherein the remote signaling interface, the second resistor, and the third resistor are connected in series between the power module and the control module.

7. The apparatus of claim 1, wherein the lightning current monitoring unit comprises a follower, a converter, a comparator and a hold circuit subunit.

8. A surge protector monitoring method is characterized in that a surge protector monitoring device according to any one of claims 1-7 is adopted for real-time monitoring, a monitoring module monitors voltage, current, temperature, environment temperature and humidity, remote signaling, lightning current and grounding state of a surge protector to obtain monitoring data, a control module analyzes the monitoring data and displays an analysis result on a display module, the display module is used for displaying a lightning current monitoring value, the grounding state, whether the surge protector breaks down or not and failure reasons, and the communication module uploads the monitoring data in real time.

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