DE202019102778U1 - Online monitoring system for a lightning rod - Google Patents

Abstract

A lightning arrester online monitoring system (10), characterized in that the lightning arrester online monitoring system (10) includes a host computer (300), a parent monitoring host (200), and a local monitoring and sensing device (100) the local monitoring and detection device (100) comprises a temperature sensor (110), a voltage signal collector (130), a current signal collector (120), a processor (140), and a communication module (150); wherein the temperature sensor (110), the current signal collector (120) and the voltage signal collector (130) are each connected to a lightning arrester to detect a temperature value, a current signal and a voltage signal of the lightning arrester; and the processor (140) is in electrical communication with the temperature sensor (110), the voltage signal collector (130), the current signal collector (120), and the communication module (150) for receiving and respectively passing the temperature value, the current signal, and the voltage signal sending the communication module (150) to the supervisory supervisory host (200) so that the supervisory supervisory host (200) is able to obtain a diagnostic result from a fault diagnosis based on the temperature value, the current signal and the voltage signal provided by the local monitoring and monitoring device Detection device (100) to receive and then send to the host computer (300).

Description

Technical area

The present disclosure relates to the field of monitoring and detection of lightning conductors, and more particularly relates to an online monitoring system for a lightning rod.

Technical background

With extensive development of condition assessment and status preservation for electricity transmission and transmission equipment in the electricity supply system and with the current development of intelligent power grid design, it will be an urgent task to perform on-line monitoring and detection of power transmission and translation equipment.

A lightning arrester is a type of power transmission and transmission equipment that finds wide application in the electricity supply system, and is an important surge protection device in the electricity supply system. Since the lightning rod has good properties of non-linear resistance, there is no gap inside the lightning conductor. Precisely because there is no gap, under the long-term effect of the operating voltage of the electricity supply system in normal operation on a valve block, and also under the influence of factors such as internal humidification or overheating, it tends to deteriorate the nonlinear resistance characteristics of the valve block. This deterioration is mainly reflected by the increase in a resistance current at normal voltage, and the increase in the resistance current leads to an increase in the amount of heat generated and then to a rise in the temperature inside the lightning rod, and the temperature rise in turn accelerates the aging of the valve block, and therefore becomes After all, the lightning conductor could be damaged due to overheating, and in severe cases, the lightning conductor could even explode, leading to a power outage on a large scale.

Therefore, a technical problem requiring a rapid solution is to provide a device capable of reliable and facilitated online monitoring and detection of lightning conductors.

Subject of the disclosure

In view of this, an object of the present disclosure is to provide an on-line lightning rod monitoring system for effectively mitigating the above technical problems.

• Online-Überwachungssystem für einen Blitzableiter, umfassend: einen Leitrechner, einen übergeordneten Überwachungshost, und eine lokale Überwachungs- und Erfassungsvorrichtung, wobei die lokale Überwachungs- und Erfassungsvorrichtung einen Temperatursensor, einen Spannungssignalsammler, einen Stromsignalsammler, einen Prozessor, und ein Kommunikationsmodul umfasst;

In order to achieve the above object, the following technical solution is used in an embodiment of the present disclosure:

• A lightning arrester online monitoring system comprising: a host computer, a parent monitoring host, and a local monitoring and sensing device, the local monitoring and sensing device including a temperature sensor, a voltage signal collector, a current signal collector, a processor, and a communications module;

The temperature sensor, the current signal collector and the voltage signal collector are each connected to a lightning arrester to detect a temperature value, a current signal and a voltage signal of the lightning arrester; and the processor is in electrical communication with the temperature sensor, the voltage signal collector, the current signal collector, and the communication module, respectively, to receive the temperature value, the current signal, and the voltage signal and send them through the communication module to the supervisory monitoring host, such that the supervisory monitoring host inputs Diagnostic result of a fault diagnosis based on the temperature value, the current signal and the voltage signal sent from the local monitoring and detection device can receive and then send to the host.

In the above online lightning arrestor monitoring system, the current signal collector alternatively includes a current transformer, a first isolation and amplification circuit, a first bandpass circuit, and a first signal conditioning circuit, wherein the current transformer is in communication with the ground terminal of the lightning arrester, to allow leakage of the lightning arrester to capture; the power converter, the first isolation and amplification circuit, the first bandpass circuit, and the first signal conditioning circuit are in electrical communication with the processor after being sequentially connected; and the current signal is successively obtained after processing the leakage current by means of the current transformer, the first separation and amplification circuit, the first bandpass circuit, and the first signal conditioning circuit and sent to the processor;

The voltage signal collector comprises: a voltage converter, a second separating and amplifying circuit, a second bandpass circuit, and a second signal conditioning circuit, wherein the voltage converter is in communication with the power supply terminal of the lightning arrester to detect a phase voltage of the lightning arrester; the voltage converter, the second isolation and amplifier circuit, the second bandpass circuit, and the second signal conditioning circuit are in electrical communication with the processor after being connected in sequence; and the voltage signal is successively obtained after processing the phase voltage by means of the second separation and amplification circuit, the second bandpass circuit, and the second signal conditioning circuit.

Alternatively, in the above online lightning rod monitoring system, the first bandpass circuit and the second bandpass circuit comprise a CD4060 frequency divider and a MAX267 filter.

Alternatively, in the above online lightning arrestor on-line monitoring system, the local monitoring and detection device further includes a discharge counter electrically connected to each of the earth terminal of the lightning arrester and the processor.

Alternatively, in the above online lightning rod monitoring system, the local monitoring and detection device further includes a solar cell in electrical communication with the temperature sensor, the voltage signal collector, the current signal collector, and the processor, respectively.

Alternatively, in the above online lightning rod monitoring system, the online lightning rod monitoring system further includes a warning device in electrical communication with the supervisory monitoring host.

Alternatively, in the above online lightning rod monitoring system, the warning device comprises an audible and visual warning device and an SMS warning device, and the audible and visual warning device and the SMS warning device are each in electrical communication with the processor.

Alternatively, in the above online lightning rod monitoring system, a DSP processing module is used for the processor, and the communication module includes a CAN communication module.

Alternatively, in the above online lightning rod monitoring system, the local monitoring and detection device further includes a humidity sensor for detecting ambient humidity in electrical communication with the processor.

The present disclosure further provides another on-line lightning arrestor monitoring system characterized in that the lightning arrester online monitoring system comprises a host, a parent monitoring host, and a local monitoring and sensing device, the local monitoring and sensing device including a temperature sensor a voltage signal collector, a current signal collector, a processor, and a communication module;

The temperature sensor is placed on the lightning arrester to detect a temperature value of the lightning arrester; the current signal collector is connected to the earth terminal of the lightning arrester to detect a current signal of the ground terminal; three voltage signal collectors are present and are respectively in electrical communication with the A-phase, B-phase, and C-phase of the lightning arrester to detect a voltage signal of respective phases; and the processor is in electrical communication with each of the temperature sensor, the current signal collector, the communication module, and respective voltage signal collectors for receiving the temperature value, the current signal, and the voltage signal of respective phases and sending the same through the communication module to the supervisory host, such that higher-level monitoring host obtains a diagnosis result from a fault diagnosis based on the temperature value, the current signal and the voltage signal of respective phase, which are sent by the local monitoring and detection device, and then sends to the host computer.

One embodiment of this disclosure provides an online monitoring and detection system for a lightning arrester, comprising: a host, a parent monitor host, and a local monitoring and sensing device, wherein a temperature sensor, a voltage signal collector, a current signal collector, a processor, and a communication module in the local monitoring and detection device are arranged so that in online monitoring and detection of a lightning arrester, the temperature sensor, the current signal collector and the voltage signal collector are each in communication with the lightning rod to detect a temperature value, a current signal and a voltage signal of the lightning arrester; and the processor is in electrical communication with each of the temperature sensor, the voltage signal collector, the current signal collector, and the communication module to receive the temperature value, the current signal, and the voltage signal and send the same through the communication module to the supervisory monitor, such that the supervisory monitor host Obtain diagnostic result from a fault diagnosis based on the temperature value, the current signal and the voltage signal sent from the local monitoring and detection device, and then send to the master computer. This allows reliable monitoring and detection of the lightning arrester in real time.

In order to make the above objects, features and advantages of the present disclosure clear and obvious, preferred embodiments are enumerated below and described in detail with reference to the accompanying drawings.

list of figures

• 1 zeigt ein Verbindungsblockdiagramm eines Online-Überwachungssystems für einen Blitzableiter nach einer Ausführungsform dieser Offenbarung.
• 2 zeigt ein Verbindungsblockdiagramm einer lokalen Überwachungs- und Erfassungsvorrichtung nach einer Ausführungsform dieser Offenbarung.
• 3 zeigt ein Verbindungsblockdiagramm eines Stromsignalsammler-Pakets nach einer Ausführungsform dieser Offenbarung.
• 4 zeigt ein Verbindungsblockdiagramm eines Spannungssignalsammler-Pakets nach einer Ausführungsform dieser Offenbarung.
• 5 zeigt ein weiteres Verbindungsblockdiagramm einer lokalen Überwachungs- und Erfassungsvorrichtung nach einer Ausführungsform dieser Offenbarung.

To more clearly describe technical solutions of the embodiments of this disclosure, the drawings necessary for the embodiments are briefly presented below; and it is to be understood that the following drawings illustrate only some embodiments of this disclosure, and therefore, are not to be considered as limitations on the scope and other related drawings may be available to those skilled in the art without the use of the inventive faculty.

• 1 FIG. 12 is a connection block diagram of a lightning arrester online monitoring system according to one embodiment of this disclosure. FIG.
• 2 FIG. 12 shows a connection block diagram of a local monitoring and detection device according to an embodiment of this disclosure. FIG.
• 3 FIG. 12 is a connection block diagram of a stream signal collector packet according to an embodiment of this disclosure. FIG.
• 4 FIG. 12 is a connection block diagram of a voltage signal collector packet according to an embodiment of this disclosure. FIG.
• 5 FIG. 12 shows another connection block diagram of a local monitoring and detection device according to an embodiment of this disclosure. FIG.

Numeral: 10 - Online monitoring system for a lightning rod; 100 - local monitoring and detection device; 110 - temperature sensor; 120 - current signal collector; 122 - current transformers; 124 - first isolation and amplifier circuit; 126 - first bandpass circuit; 128 - first signal conditioning circuit; 130 - voltage signal collector; 132 - voltage converter; 134 - second isolation and amplification circuit; 136 - second bandpass circuit; 138 - second signal conditioning circuit; 140 - processor; 150 - communication module; 160 - unloading counter; 170 - humidity sensor; 180 - solar cell; 200 - higher-level monitor host; 300 - host computer; and 400 - warning device.

Detailed description of the embodiments

To clarify the objects, the technical solutions, and the advantages of the embodiments of the present disclosure, technical solutions in the embodiments of this disclosure will be clearly and comprehensively described below with reference to the drawings in the embodiments of this disclosure, and obvious are those described Embodiments only partial embodiments, rather than all of the embodiments of the disclosure. In general, the components of the embodiments of the present disclosure, which are described and illustrated herein in the drawings, may be arranged and configured in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings should represent only selected embodiments of this disclosure, rather than limiting the claimed scope of the present disclosure. All other embodiments that would be available to one skilled in the art based on the embodiments in this disclosure without inventive step are within the scope of the disclosure.

It should be noted that similar reference numerals and letters in the following drawings refer to similar objects, and therefore, an object is not further defined and explained in subsequent drawings as long as the object has been once defined in a drawing.

In the discussion of this disclosure, it is to be understood that terms such as "set", "compound" and "connect" should be understood in a broad sense unless otherwise expressly stated and defined. For example, it could be either a fixed connection, or a detachable connection, or an integrated connection; it could be either a mechanical connection, or an electrical connection; and it could either be an immediate connection, or an indirect connection through an intermediary, or an internal communication between two elements. Those skilled in the art could understand the specific meanings of the above terms in this disclosure according to specific circumstances.

With reference to 1 and 2 The present disclosure provides an online monitoring system 10 for a lightning rod, comprising: a host computer 300 , a parent monitoring host 200 and a local monitoring and detection device 100 , where the host computer 300 and the local monitoring and detection device 100 each with the parent monitoring host 200 communicate.

This could be the host computer 300 a cell phone, a computer or a tablet PC, and the parent monitoring host 200 could be a computer or a server, which is not specifically limited here. It should be understood that in this embodiment, one or more local monitoring and detection devices 100 can be provided. In the case of several local monitoring and detection devices 100 corresponds to each of the local monitoring and detection devices 100 a lightning rod. Then it will enable the online surveillance system 10 For a lightning arrester, it is possible to simultaneously monitor and record several lightning conductors online.

In this embodiment, the local monitoring and detection device comprises 100 a temperature sensor 110 , a voltage signal collector 130 , a current signal collector 120 , a processor 140 and a communication module 150 , The temperature sensor 110 , the current signal collector 120 and the voltage signal collector 130 each connected to a lightning arrester to detect a temperature value, a current signal and a voltage signal of the lightning arrester; and the processor 140 stands in each case with the temperature sensor 110 , the voltage signal collector 130 , the current signal collector 120 and the communication module 150 in electrical communication to receive the temperature value, the current signal and the voltage signal and the same through the communication module 150 to the parent monitoring host 200 to send, so the parent monitoring host 200 a diagnostic result from a fault diagnosis based on the temperature value, the current signal and the voltage signal supplied by the local monitoring and detection device 100 are sent, and then sent to the host computer 300 sends.

The above settings will provide real-time online capture while monitoring the lightning rod using the online monitoring system above 10 realized for a lightning rod. In addition, the result obtained by the error detection based on the temperature value, the current signal and the voltage signal is more accurate.

It could be the processor 140 be an IC chip and have a capability to process a signal. The above processor could be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), and the like. It could also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or another programmable logic device, a discrete gate or a transistor logic device, and a discrete hardware device. The communication module 150 could be a wireless communication module, and could also be a communication interface or a bus, which is not specifically limited here.

Alternatively, in this embodiment, a DSP processing module for the processor 140 used, and the communication module 150 includes a CAN communication module.

The above settings control the parent monitoring host 200 by the CAN communication module, the operating state of respective local monitoring and detection device 100 , an optical fiber or a shielded twisted cable can be used as the transmission medium, and optoelectronic insulation is used for all the interfaces, thereby ensuring that there is no electrical connection between the respective parts, solving problems of noise resistance and shock resistance, and so on trouble-free and stable operation of the online monitoring system 10 is ensured for a lightning rod.

The type number of the temperature sensor 110 is not specifically limited here as long as it can effectively detect the temperature in the lightning rod. The current signal collector 120 may include, but is not limited to, a current sensing module, a separator and amplifier circuit, a bandpass circuit, and a signal conditioning circuit, and the voltage signal collector 130 may include, but is not limited to, a voltage sensing module, a separator and amplifier circuit, a bandpass circuit, and a signal conditioning circuit.

With reference to 3 includes the current signal collector 120 in this embodiment, alternatively, a current transformer 122 , a first isolation and amplifier circuit 124 , a first bandpass circuit 126 , and a first signal conditioning circuit 128 , where the current transformer 122 is connected to the earth terminal of the lightning arrester to allow leakage of the lightning arrester to capture; the current transformer 122 , the first isolation and amplifier circuit 124 , the first bandpass circuit 126 and the first signal conditioning circuit 128 with the processor 140 be in electrical connection after they have been connected in succession; and the current signal after processing the leakage current sequentially by means of the current transformer 122 , the first isolation and amplifier circuit 124 , the first bandpass circuit 126 , and the first signal conditioning circuit 128 is received and sent to the processor 140 is sent.

With reference to 4 includes the voltage signal collector 130 a voltage converter 132 , a second isolation and amplifier circuit 134 , a second bandpass circuit 136 , and a second signal conditioning circuit 138 , where the voltage transformer 132 is connected to the power supply terminal of the lightning arrestor to detect a phase voltage of the lightning arrester; the voltage converter 132 , the second isolation and amplifier circuit 134 , the second bandpass circuit 136 and the second signal conditioning circuit 138 with the processor 140 be in electrical connection after they have been connected in succession; and the voltage signal after processing the phase voltage sequentially by means of the second separation and amplification circuit 134 , the second bandpass circuit 136 , and the second signal conditioning circuit 138 is obtained.

The leakage current is first from the first isolation and amplifier circuit 124 amplified, and then filtered to the first bandpass circuit 126 sent to the same after the reduction of the interference to the first signal conditioning circuit 128 to transmit, so that a current signal is obtained after shaping and then to the processor 140 is transmitted. The phase voltage is first from the second isolation and amplifier circuit 134 amplified, and then filtered to the second bandpass circuit 136 sent to the same after the reduction of the interference to the second signal conditioning circuit 138 to transmit so that a voltage signal is obtained after shaping and then to the processor 140 is transmitted. The processor 140 conducts the received current signal or voltage signal from the first signal conditioning circuit 128 or the second signal conditioning circuit 138 for analysis, calculation and evaluation to the parent monitoring host 200 Further, and thereby monitoring data are formed, wherein a fault information of the lightning arrester is obtained and an indication is sent out as soon as an overvoltage or a current dissipation occurs, and an error of the discharge current or too high a temperature; this can be the parent monitoring host 200 include a screen and a memory module, etc., so that the parent monitoring host 200 store and display the information with which an operator can perform maintenance and repair work on the basis of the fault information of the lightning arrester.

In general, the application of the lightning arrester to a circuit with a rotary voltage further ensures the accuracy of the detection result of the phase voltage; alternatively, there are three voltage signal collectors in this embodiment 130 each in electrical connection with the A-phase, B-phase, and C-phase of the lightning arrester to detect a voltage signal of respective phases.

The processor 140 stands in each case with the temperature sensor 110 , the current signal collector 120 , the communication module 150 , and respective voltage signal collectors 130 in electrical communication to receive the temperature value, the current signal and the voltage signal of respective phases and the same through the communication module 150 to the parent monitoring host 200 to send, so the parent monitoring host 200 a diagnostic result from a fault diagnosis based on the temperature value, the current signal and the voltage signal of respective phases supplied by the local monitoring and detection device 100 are sent, and then sent to the host computer 300 sends.

Alternatively, the first bandpass circuit comprises 126 and the second bandpass circuit 136 in this embodiment, a CD4060 frequency divider and a MAX267 filter, respectively.

To effectively alert an operator to a malfunction of the lightning arrester, the online surveillance system includes 10 for a lightning rod in this embodiment, alternatively, a warning device 400 that with the parent monitoring host 200 is in electrical connection.

This could be the warning device 400 an audible warning device, an optical warning device, an audible and visual warning device and / or an SMS warning device, but is not limited thereto, and it should be understood that in the case of the SMS alerting device, this SMS warning device with a terminal in Can be connected.

Alternatively, the warning device includes 400 in this embodiment, an audible and visual warning device and an SMS warning device, and the audible and visual warning device and the SMS warning device each stand with the processor 140 in electrical connection.

With reference to 5 includes the local monitoring and detection device 100 alternatively, in this embodiment, a discharge counter 160 , in each case with the earth connection of the lightning arrester and with the processor 140 is in electrical connection, so that the accuracy of the detection result of the lightning arrester is further ensured.

Specifically, the discharge counter 160 through a collector with the processor 140 In electrical connection, the collector serves to set a record of the discharge meter 160 collect in real time and the same to the processor 140 to send, and the processor 140 sends the record when receiving the record to the parent monitoring host 200 so that the parent monitoring host 200 capable of detecting the operating state of the lightning arrester based on the record, and then determining whether the lightning arrester has failed based on the operating state of the lightning arrester.

In order to avoid an influence of an environmental factor on the diagnosis result and then to further ensure the accuracy of the obtained diagnostic result for the lightning arrester, the local monitoring and detection device comprises 100 in this embodiment, further, a humidity sensor 170 to capture an ambient humidity associated with the processor 140 is in electrical connection.

To respective electronic components in the local monitoring and detection device 100 To power, the local monitoring and detection device 100 include a battery, and may also be connected to an external mains power supply. Alternatively, the local monitoring and detection device comprises 100 in this embodiment, furthermore, a solar cell 180 , each with the temperature sensor 110 , the voltage signal collector 130 , the current signal collector 120 , and the processor 140 is in electrical connection.

In summary, an on-line monitoring system provided in this disclosure includes 10 for a lightning rod a master computer 300 , a parent monitoring host 200 and a local monitoring and detection device 100 in which a real-time online detection during the monitoring of a lightning arrester by means of the above online monitoring system 10 for a lightning rod is realized by a temperature sensor 110 , a voltage signal collector 130 , a current signal collector 120 , a processor 140 and a communication module 150 in the local monitoring and detection device 100 to be ordered. In addition, the result obtained by the error detection based on the temperature value, the current signal and the voltage signal is more accurate. Further, the accuracy of the detection result by the arrangement of the humidity sensor 170 and the discharge counter 160 further ensured.

Obviously, it will be understood by those skilled in the art that the functionalities of the above embodiments of this disclosure may be realized by a general purpose computing device, and the functionalities may be either integrated into a single computing device or distributed on a network formed by multiple computing devices; alternatively, the functionalities may be implemented by existing program codes or algorithms executable by the computing device, and therefore stored on the storage device and then executed by the computing device, or the functionalities may be realized by making each as respective IC modules, or more Modules or steps thereof are manufactured as individual IC modules. In this way, the implementation of the functionalities of this disclosure are not limited to any specific combination of hardware and software.

Above is only preferred embodiments of the present disclosure, and is not intended to limit the disclosure, and to those skilled in the art, the present disclosure could be variously changed and modified. Any changes, equivalent substitutions, and refinements made within the spirit and principle of the disclosure should fall within the scope of the disclosure.

Claims (10)

A lightning arrester online monitoring system (10), characterized in that the lightning arrester online monitoring system (10) includes a host computer (300), a parent monitoring host (200), and a local monitoring and sensing device (100) the local monitoring and detection device (100) comprises a temperature sensor (110), a voltage signal collector (130), a current signal collector (120), a processor (140), and a communication module (150); wherein the temperature sensor (110), the current signal collector (120) and the voltage signal collector (130) are each connected to a lightning arrester to detect a temperature value, a current signal and a voltage signal of the lightning arrester; and the processor (140) is in electrical communication with the temperature sensor (110), the voltage signal collector (130), the current signal collector (120) and the communication module (150), respectively receiving the temperature value, the current signal and the voltage signal and sending them to the higher-level monitoring host (200) by the communication module (150) so that the higher-level monitoring host (200) is able to obtain a diagnosis result from a fault diagnosis based on the temperature value, of the current signal and the voltage signal sent from the local monitoring and detection device (100), and then to send to the host computer (300). Online monitoring system (10) for a lightning rod after Claim 1 characterized in that the current signal collector (120) comprises a current transformer (122), a first isolation and amplifier circuit (124), a first bandpass circuit (126), and a first signal conditioning circuit (128), the current transformer (122) having the Earth connection of the lightning arrester is in communication to detect a leakage current of the lightning arrester; the power converter (122), the first isolation and amplifier circuit (124), the first bandpass circuit (126), and the first signal conditioning circuit (128) are in electrical communication with the processor (140) after being sequentially connected; and the current signal after processing the leakage current is successively obtained by the current transformer (122), the first separation and amplification circuit (124), the first bandpass circuit (126), and the first signal conditioning circuit (128) and sent to the processor (140) becomes; wherein the voltage signal collector (130) comprises a voltage converter, a second isolation and amplifier circuit (134), a second bandpass circuit (136), and a second signal conditioning circuit (138), wherein the voltage converter is in communication with the power supply terminal of the lightning arrester, at a phase voltage to detect the lightning conductor; the voltage converter, the second isolation and amplifier circuit (134), the second bandpass circuit (136), and the second signal conditioning circuit (138) are in electrical communication with the processor (140) after being sequentially connected; and the voltage signal is successively obtained after processing the phase voltage by means of the second separation and amplification circuit (134), the second bandpass circuit (136), and the second signal conditioning circuit (138). Online monitoring system (10) for a lightning rod after Claim 2 characterized in that the first bandpass circuit (126) and the second bandpass circuit (136) comprise a CD4060 frequency divider and a MAX267 filter. Online monitoring system (10) for a lightning rod after Claim 1 characterized in that the local monitoring and detection device (100) further comprises a discharge counter (160) in electrical communication with each of the ground terminal of the lightning arrester and the processor (140). Online monitoring system (10) for a lightning rod after Claim 1 characterized in that the local monitoring and detection device (100) further comprises a solar cell (180) connected to each of the temperature sensor (110), the voltage signal collector (130), the current signal collector (120), and the processor (140) in FIG electrical connection is. Online monitoring system (10) for a lightning rod after Claim 1 characterized in that the lightning arrester online monitoring system (10) further comprises a warning device (400) in electrical communication with the supervisory monitoring host (200). Online monitoring system (10) for a lightning rod after Claim 6 characterized in that the warning device (400) comprises an audible and visual warning device and an SMS alerting device, and the audible and visual warning device and the SMS alerting device are each in electrical communication with the processor (140). Online monitoring system (10) for a lightning rod after Claim 1 characterized in that a DSP processing module is used for the processor (140) and the communication module (150) comprises a CAN communication module. Online monitoring system (10) for a lightning rod after Claim 1 characterized in that the local monitoring and detection device (100) further comprises a humidity sensor (170) for detecting ambient humidity electrically connected to the processor (140). A lightning arrester online monitoring system (10), characterized in that the lightning arrester online monitoring system (10) includes a host computer (300), a parent monitoring host (200), and a local monitoring and sensing device (100) the local monitoring and detection device (100) comprises a temperature sensor (110), a voltage signal collector (130), a current signal collector (120), a processor (140), and a communication module (150); wherein the temperature sensor (110) is arranged on the lightning arrester to a temperature value of the lightning arrester capture; the current signal collector (120) is in communication with the ground terminal of the lightning arrester for detecting a current signal of the ground terminal; three voltage signal collectors (130) are provided and each in electrical communication with the A-phase, B-phase, and C-phase of the lightning arrester to detect a voltage signal of respective phases; and the processor (140) is in electrical communication with the temperature sensor (110), the current signal collector (120), the communication module (150), and respective voltage signal collectors (130) for receiving the temperature value, the current signal, and the voltage signal of respective phases and to send the same through the communication module (150) to the higher-level monitoring host (200), so that the higher-level monitoring host (200) a diagnosis result of a fault diagnosis based on the temperature value, the current signal and the voltage signal of each phase, the local monitoring and Detection device (100) is received, and then sent to the host computer (300).

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