CN108877123A - power cable anti-theft alarm device and system - Google Patents
power cable anti-theft alarm device and system Download PDFInfo
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- CN108877123A CN108877123A CN201810911215.7A CN201810911215A CN108877123A CN 108877123 A CN108877123 A CN 108877123A CN 201810911215 A CN201810911215 A CN 201810911215A CN 108877123 A CN108877123 A CN 108877123A
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- alarm
- power cable
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- monitoring
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a power cable anti-theft alarm device and a system. Wherein the apparatus comprises: the monitoring module monitors whether the cable is abnormally electrified or not, when the situation that the cable is abnormally electrified is monitored, an alarm signal is output, the processor controls the alarm to trigger the alarm according to the output alarm signal, and the alarm triggers the alarm according to the control of the processor. By the mode, indirect connection with the power cable body can be achieved, the power cable body is not damaged, timely anti-theft alarm can be achieved, and the power cable is prevented from being damaged by external force.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to an anti-theft alarm device and an anti-theft alarm system for a power cable.
Background
At present, the power cable burglar alarm scheme mainly triggers the alarm by detecting the way that the cable armor layer or the shielding layer is stripped, and a power cable burglar alarm needs to be connected between the power cable armor layer and the grounding point in series, so that the following problems exist:
1. the alarm is triggered after the armor layer or the shielding layer of the cable is stripped, so that great delay exists, the cable is damaged, and great loss caused by the damage cannot be avoided.
2. The installation power cable burglar alarm need destroy the oversheath of cable, leads to the steel armour layer to rust and corrode easily, brings the potential safety hazard for the cable operation then.
Disclosure of Invention
The invention aims to provide a power cable anti-theft alarm device and a system, which can realize indirect connection with a power cable body, do not damage the power cable body, can realize timely anti-theft alarm and avoid the power cable from being damaged by external force.
According to an aspect of the present invention, there is provided a power cable burglar alarm device including:
the monitoring module, the processor and the alarm;
the processor is connected with the monitoring module and the alarm respectively;
the monitoring module monitors whether the cable is abnormally electrified or not, when the situation that the cable is abnormally electrified is monitored, an alarm signal is output, the processor controls the alarm to trigger alarm according to the output alarm signal, and the alarm triggers alarm according to the control of the processor.
Wherein, the monitoring module includes:
an electromagnetic induction module; the electromagnetic induction module monitors whether the induction voltage of the cable disappears or the induction voltage value is smaller than a first preset voltage threshold value under the condition of abnormal electrification, and outputs an alarm signal when the condition of the abnormal electrification is monitored.
Wherein, the monitoring module includes:
an electric field sensor; the electric field sensor monitors whether an induction electric field of the cable disappears or the abnormal electrification condition that the value of the induction electric field is smaller than a first preset electric field threshold value occurs, and outputs an alarm signal when the abnormal electrification condition is monitored.
The monitoring module is arranged at the cable body or the grounding wire of the cable terminal or one of the three-phase wires of the cable terminal.
Wherein, the monitoring module is in the shape of a punch clamp or a trip type.
The power cable anti-theft alarm device also comprises a communication module connected with the processor;
the processor also controls the communication module to send the information of the monitored abnormal electrification condition of the cable to the mobile terminal, and the communication module sends the information of the monitored abnormal electrification condition of the cable to the mobile terminal according to the control of the processor.
According to another aspect of the present invention, there is provided a power cable burglar alarm system comprising a power cable burglar alarm arrangement as defined in any one of the preceding claims.
The power cable anti-theft alarm system also comprises a monitoring background which is wirelessly connected with the power cable anti-theft alarm device;
the power cable anti-theft alarm device controls the communication module to send the monitored information of the abnormal electrification condition of the cable to the monitoring background through the processor, controls the communication module to send alarm information triggered by the alarm to the monitoring background through the processor, and controls the communication module to send the information of the mobile terminal on-line communication to the monitoring background through the processor;
the monitoring background receives information sent by the power cable anti-theft alarm device and displays the received information so as to carry out remote monitoring management on the power cable anti-theft alarm device, and when the information sent by the power cable anti-theft alarm device cannot be received within a preset time, the monitoring background judges that the communication abnormality of the power cable anti-theft alarm device comprises shielding or disconnection of a communication signal, alarms and outputs, and simultaneously triggers the information of the communication abnormality to the mobile terminal.
Can discover, above scheme, monitoring module can appear the unusual electrified condition including the response voltage who monitors the cable and appear that the response voltage disappears or the response voltage value is less than the unusual electrified condition of first default voltage threshold value or monitor the response electric field of cable and appear that the response electric field disappears or the response electric field numerical value is less than the unusual electrified condition of first default electric field threshold value etc. output alarm signal, the treater can be according to the alarm signal of this output, the control alarm triggers the warning, this alarm can be according to the control of this treater, trigger the warning, can realize not directly with this body coupling of power cable, do not destroy the power cable body, can realize timely burglar alarm, avoid power cable to suffer external force destruction.
Furthermore, according to the scheme, the monitoring module can be in the shape of a perforated clamp or a trip type and the like, and is convenient to install and dismantle.
Further, according to the above scheme, the communication module can send the monitored information of the abnormal electrification condition of the cable to the mobile terminal according to the control of the processor, so that the information of the abnormal electrification condition can be timely notified to the operation and maintenance personnel corresponding to the mobile terminal to take measures.
Furthermore, according to the scheme, the monitoring background can receive information sent by the power cable anti-theft alarm device and display the received information, so that remote monitoring management of the power cable anti-theft alarm device can be realized.
Furthermore, according to the scheme, when the monitoring background can not receive the information sent by the power cable anti-theft alarm device within the preset time, the monitoring background judges that the communication abnormality of the power cable anti-theft alarm device comprises shielded or disconnected communication signals and the like, the alarm is output to operation and maintenance personnel to take measures, and meanwhile, the information with the abnormal communication is triggered to the operation and maintenance personnel corresponding to the mobile terminal to take measures, so that the effective remote monitoring and management of the power cable anti-theft alarm device can be realized, the anti-theft alarms of a plurality of power cables can be effectively monitored and managed simultaneously, and the monitoring background is low in cost, easy to realize and high in cost performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the anti-theft alarm device for power cables according to the present invention;
FIG. 2 is a schematic structural view of another embodiment of the anti-theft alarm device for power cables according to the present invention;
fig. 3 is a schematic view illustrating another embodiment of the anti-theft alarm device for power cables according to the present invention;
FIG. 4 is a schematic diagram of an exemplary monitoring module in another embodiment of the anti-theft alarm device for power cables according to the present invention;
fig. 5 is a schematic structural diagram of an embodiment of the power cable burglar alarm system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Similarly, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive work are within the scope of the present invention.
The invention provides a power cable anti-theft alarm device which can be connected with a power cable body indirectly, does not damage the power cable body, can realize timely anti-theft alarm and avoids the power cable from being damaged by external force.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an anti-theft alarm device for power cables according to the present invention. As shown in fig. 1, the power cable burglar alarm device 10 includes: a monitoring module 11, a processor 12 and an alarm 13.
The processor 12 is connected to the monitoring module 11 and the alarm 13, respectively.
The monitoring module 11 is configured to monitor whether the cable is abnormally charged, and output an alarm signal when the cable is monitored to be abnormally charged.
The processor 12 is used for controlling the alarm 13 to trigger an alarm according to the output alarm signal.
The alarm 13 is used for triggering an alarm according to the control of the processor 12.
Optionally, the power cable burglar alarm device 10 may further include:
and a power supply module 14 connected to the processor 12 for supplying power to the processor 12.
Optionally, the monitoring module 11 may include:
the electromagnetic induction module 111 is configured to monitor whether the induced voltage of the cable disappears or the induced voltage value is smaller than a first preset voltage threshold value under the condition of abnormal electrification, and output an alarm signal when the condition of abnormal electrification is monitored.
Optionally, the monitoring module 11 may include:
the electric field sensor 112 is configured to monitor whether an induced electric field of the cable disappears or an abnormal electrification condition that an induced electric field value is smaller than a first preset electric field threshold value occurs, and output an alarm signal when the abnormal electrification condition is monitored.
Alternatively, the monitoring module 11 may be arranged at the cable body or at the earth line of the cable termination or at one of the three phase conductors of the cable termination.
Alternatively, the monitoring module 11 may have a punch-clamp or a trip-type external shape, which is convenient for installation and removal.
In this embodiment, the electromagnetic induction module 111 may be at least one of a metal induction electrode or a copper foil plate electrode, and the invention is not limited thereto. The metal induction electrode or the copper foil plate electrode can be used for monitoring whether the induction voltage of the cable disappears or the induction voltage value is smaller than a first preset voltage threshold value and is abnormally electrified, and when the situation that the abnormal electrification occurs is monitored, an alarm signal is output.
In this embodiment, the electric field sensor 112 may be at least one of an electric field induction type detector, a photoelectric integrated electric field sensor, and the like, but the invention is not limited thereto. The electric field induction type detector or the photoelectric integrated electric field sensor can be used for monitoring whether an induction electric field of the cable disappears or the abnormal electrification condition that the value of the induction electric field is smaller than a first preset electric field threshold value occurs or not, and outputting an alarm signal when the abnormal electrification condition is monitored.
In the present embodiment, the alarm 13 may be an audible and visual alarm for triggering an audible and visual alarm under the control of the processor 12.
In this embodiment, the power supply module 14 may adopt a power saving technology, a power saving mode, and the like, and may adopt a button cell, a zinc-manganese cell, an alkaline cell, a rechargeable cell, and a solar cell, which is not limited in the present invention. Typically, the power module 14 may be an alkaline battery, and ideally operates for 10 years without recharging, and may provide an alarm output when the battery is low.
It can be found, in this embodiment, the monitoring module can be in monitoring that the unusual electrified condition of cable appearance including the induction voltage who monitors the cable appear that induction voltage disappears or induction voltage value is less than the unusual electrified condition of first preset voltage threshold or monitor that the induction electric field of cable appears that the induction electric field disappears or induction electric field numerical value is less than the unusual electrified condition of first preset electric field threshold etc, output alarm signal, the treater can be according to the alarm signal of this output, the control alarm triggers the warning, this alarm can be according to the control of this treater, trigger the warning, can realize not directly with this body coupling of power cable, do not destroy the power cable body, can realize timely burglar alarm, avoid the power cable to suffer external force destruction.
Further, in this embodiment, the monitoring module may be in the form of a punch clamp or a trip type, which is convenient for installation and removal.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of the anti-theft alarm device for power cables according to the present invention. Different from the previous embodiment, the power cable burglar alarm device 20 of the present embodiment further includes: a communication module 21 connected to the processor 12.
The processor 12 is further configured to control the communication module 21 to send information of the monitored abnormal electrification of the cable to the mobile terminal.
The communication module 21 is configured to send information of the monitored abnormal electrification of the cable to the mobile terminal according to the control of the processor 12.
In this embodiment, the communication module 21 may be connected to the mobile terminal by using a short-range Wireless technology, where the short-range Wireless technology may be any one of bluetooth, wiFi (Wireless-broadband network), and ZigBee (ZigBee), and the invention is not limited thereto.
In this embodiment, the communication module 21 may also use an NB-IoT (Narrow Band Internet of Things based on cellular) technology to connect with the mobile terminal, and may also use a wide area narrowband Internet of Things (LoRa) technology based on a wireless network to connect with the mobile terminal, which is not limited in the present invention.
In this embodiment, the communication module 21 sends the monitored information of the abnormal electrification of the cable to the mobile terminal in a notification manner including one or more of a short message, a telephone call, a vibration of the mobile phone, or a ringing of the mobile phone.
In this embodiment, the mobile terminal may be a mobile phone, a tablet computer, a portable wearable device, and the like, but the invention is not limited thereto, app (Application program) software may be embedded in the mobile terminal, and may display the state of the power cable burglar alarm device 20, such as the battery level, the alarm condition, and the like, and an operation and maintenance person may connect to the power cable burglar alarm device 20 through the App software of the mobile terminal to perform arming, disarming, and the like, and may also check in on site, and through the above manner, the quality and efficiency of equipment inspection are improved.
It can be found that, in this embodiment, the communication module may send the monitored information of the abnormal electrification of the cable to the mobile terminal according to the control of the processor, so as to timely notify the information of the abnormal electrification of the cable to the operation and maintenance personnel corresponding to the mobile terminal to take measures.
The present embodiment is illustrated below:
referring to fig. 3, fig. 3 is a schematic view illustrating another embodiment of the anti-theft alarm device for power cable according to the present invention. As shown in fig. 3, the cable is a 10kV (kilovolt) three-core power cable, the two ends of the cable are outdoor terminals installed on a tower, the electric field distribution at the outdoor terminals at the two ends of the cable is not uniform, and the electric field distribution has radial and axial component electric fields, one power cable anti-theft alarm device 20 of the present invention is arranged at one of the three phase conductors of one of the cable terminals, and the cable is electrified in a normal state. Generally, a power cable is stolen when the cable is laid right after the cable is laid and a load is not connected to the cable, and during the period of normal production operation, one end of an isolating switch connected with a cable terminal is in a closing state, and the other end of the isolating switch is in an opening state, namely the cable is in an idle running state
As shown in fig. 3, when the disconnecting switch connected to the cable terminal, one end of which is in a closing state, is pulled open, the monitoring module may monitor that the cable is abnormally charged, including monitoring that the induced voltage of the cable disappears or the induced voltage value is smaller than the first preset voltage threshold value, or monitoring that the induced electric field of the cable disappears or the induced electric field value is smaller than the first preset electric field threshold value, and the like, and output an alarm signal, the processor may control the alarm to trigger an alarm according to the output alarm signal, and the alarm may trigger an alarm according to the control of the processor, so as to achieve indirect connection with the power cable body, not damage the power cable body, achieve timely anti-theft alarm, and avoid the power cable from being damaged by external force. Further, the communication module in the power cable burglar alarm device 20 of the present invention may send the monitored information of the abnormal electrification of the cable to the mobile terminal according to the control of the processor, so as to notify the information of the abnormal electrification to the operation and maintenance personnel corresponding to the mobile terminal in time to take measures.
Referring to fig. 4, fig. 4 is a schematic diagram of an exemplary circuit of a monitoring module in another embodiment of the anti-theft alarm device for power cables according to the present invention. As shown in fig. 4, the sensing end is made of a metal pickup sheet, and can sense the very weak voltage and/or electric field of the cable, and under the normal live condition of the cable, the base of the triode VT1 is conducted with the emitter of the triode VT2 and the negative electrode of the power supply due to the function of the capacitor C, which is equivalent to a short circuit state, at this time, the triode VT1 and the triode VT2 are both in a cut-off state, the alarm output trigger module does not act, and the whole circuit consumes very weak electric energy.
As shown in fig. 4, when the sensed voltage and/or electric field or the like is abnormal and electrified, the voltage and/or electric field disappears, or the voltage value is smaller than the first preset voltage threshold value, or the inductance value is smaller than the first preset inductance threshold value, the capacitor C is equivalent to an open circuit, the triode VT1 and the triode VT2 are both turned on, and the alarm output triggering module outputs an alarm.
As shown in fig. 4, the circuit of the monitoring module may have an internal overvoltage protection and an internal electronic automatic switch, and has strong anti-interference performance, and the monitoring background or the mobile terminal can control the internal switch to be turned off to perform disarming, so as to save electric quantity.
The invention also provides a power cable anti-theft alarm system which can realize indirect connection with the power cable body, does not damage the power cable body, can realize timely anti-theft alarm and avoids the power cable from being damaged by external force.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of the anti-theft alarm system for power cables according to the present invention. In this embodiment, the power cable burglar alarm system 50 includes a power cable burglar alarm 51, and the power cable burglar alarm 51 is the power cable burglar alarm in the above embodiment.
Optionally, the power cable burglar alarm system 50 may further include: and a monitoring background 52 wirelessly connected with the power cable anti-theft alarm device 51.
The power cable anti-theft alarm device 51 may be connected to the monitoring background 52 in a cellular-based narrowband internet of things NB-IoT manner, or may be connected to the monitoring background 52 in a wireless-network-based wide-area narrowband internet of things LoRa manner, which is not limited in the present invention.
The power cable burglar alarm device 51 is configured to control the communication module 21 to send the monitored information of the abnormal electrified condition of the cable to the monitoring background 52 through the processor 12, control the communication module 21 to send alarm information triggered by the alarm 13 to the monitoring background 52 through the processor 12, and control the communication module 21 to send the online information of the mobile terminal communication to the monitoring background 52 through the processor 12.
The monitoring background 52 is configured to receive information sent by the power cable burglar alarm 51, and display the received information, so as to perform remote monitoring management on the power cable burglar alarm 51, and when the information sent by the power cable burglar alarm 51 is not received within a preset time, determine that the communication abnormality of the power cable burglar alarm 51 includes shielding or disconnection of a communication signal, alarm output, and trigger the information of the communication abnormality to the mobile terminal.
It can be found that, in this embodiment, the monitoring module can be when monitoring that the unusual electrified condition appears in the cable including the induced voltage who monitors the cable appear induced voltage disappearance or induced voltage value is less than the unusual electrified condition of the first electrified condition of presetting the voltage threshold value or monitor that the induced electric field of cable appears induced electric field disappearance or induced electric field numerical value is less than the unusual electrified condition of the first electrified condition of presetting the electric field threshold value etc, output alarm signal, the treater can be according to the alarm signal of this output, the control alarm triggers the warning, this alarm can be according to the control of this treater, trigger the warning, can realize not directly with this body coupling of power cable, do not destroy the power cable body, can realize timely burglar alarm, avoid power cable to suffer external force destruction.
Further, in this embodiment, the monitoring background may receive information sent by the power cable burglar alarm, and display the received information, so as to implement remote monitoring management on the power cable burglar alarm.
Further, in this embodiment, when the monitoring background cannot receive the information sent by the power cable burglar alarm device for more than the preset time, it is determined that the communication abnormality of the power cable burglar alarm device includes that the communication signal is shielded or disconnected, and the alarm is output to the operation and maintenance personnel to take measures, and meanwhile, the information of the communication abnormality is triggered to the operation and maintenance personnel corresponding to the mobile terminal to take measures, so that effective remote monitoring and management of the power cable burglar alarm device can be realized, the burglar alarms of a plurality of power cables can be effectively monitored and managed remotely at the same time, and the monitoring background is low in cost, easy to implement, and high in cost performance.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures, such as Dynamic RAM (DRAM), may use the discussed embodiments.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A power cable burglar alarm arrangement, comprising:
the system comprises a monitoring module, a processor and an alarm;
the processor is connected with the monitoring module and the alarm respectively;
the monitoring module monitors whether the cable is abnormally electrified or not, when the situation that the cable is abnormally electrified is monitored, an alarm signal is output, the processor controls the alarm to trigger alarm according to the output alarm signal, and the alarm triggers alarm according to the control of the processor.
2. A power cable burglar alarm arrangement according to claim 1, wherein said monitoring module comprises:
an electromagnetic induction module; the electromagnetic induction module monitors whether the induction voltage of the cable disappears or the induction voltage value is smaller than a first preset voltage threshold value in an abnormal electrification condition or not, and outputs an alarm signal when the abnormal electrification condition is monitored.
3. A power cable burglar alarm arrangement according to claim 1, wherein said monitoring module comprises:
an electric field sensor; the electric field sensor monitors whether an induction electric field of the cable disappears or the abnormal electrification condition that the value of the induction electric field is smaller than a first preset electric field threshold value occurs, and outputs an alarm signal when the abnormal electrification condition is monitored.
4. A power cable burglar alarm arrangement according to claim 1, wherein said monitoring module is arranged at the cable body or at the earth of the cable termination or at one of the three phase conductors of the cable termination.
5. A power cable burglar alarm arrangement according to claim 1, wherein said monitoring module is in the form of a punch clamp or a snap-off outer shape.
6. A power cable burglar alarm arrangement according to claim 1, further comprising a communication module connected to said processor;
the processor also controls the communication module to send the information of the monitored abnormal electrification condition of the cable to the mobile terminal, and the communication module sends the information of the monitored abnormal electrification condition of the cable to the mobile terminal according to the control of the processor.
7. A power cable burglar alarm system comprising a power cable burglar alarm arrangement according to any of claims 1 to 6.
8. A power cable burglar alarm system according to claim 7, further comprising a monitoring back-office wirelessly connected to said power cable burglar alarm unit;
the power cable anti-theft alarm device controls the communication module to send the monitored information of the abnormal electrification condition of the cable to the monitoring background through the processor, controls the communication module to send alarm information triggered by the alarm to the monitoring background through the processor, and controls the communication module to send the information of the mobile terminal on-line communication to the monitoring background through the processor;
the monitoring background receives information sent by the power cable anti-theft alarm device and displays the received information so as to carry out remote monitoring management on the power cable anti-theft alarm device, and when the information sent by the power cable anti-theft alarm device cannot be received within a preset time, the monitoring background judges that the communication abnormality of the power cable anti-theft alarm device comprises shielding or disconnection of a communication signal, alarms and outputs, and simultaneously triggers the information of the communication abnormality to the mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810911215.7A CN108877123A (en) | 2018-08-10 | 2018-08-10 | power cable anti-theft alarm device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911215.7A CN108877123A (en) | 2018-08-10 | 2018-08-10 | power cable anti-theft alarm device and system |
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| CN108877123A true CN108877123A (en) | 2018-11-23 |
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| CN201810911215.7A Pending CN108877123A (en) | 2018-08-10 | 2018-08-10 | power cable anti-theft alarm device and system |
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Cited By (1)
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| CN113706843A (en) * | 2021-08-25 | 2021-11-26 | 国网湖南省电力有限公司 | Cable external force damage detection device and application method thereof |
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