CN113936404B - Anti-theft intelligent monitoring system and method for street lamp cable - Google Patents
Anti-theft intelligent monitoring system and method for street lamp cable Download PDFInfo
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- CN113936404B CN113936404B CN202111187681.3A CN202111187681A CN113936404B CN 113936404 B CN113936404 B CN 113936404B CN 202111187681 A CN202111187681 A CN 202111187681A CN 113936404 B CN113936404 B CN 113936404B
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- signal
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- street lamp
- lamp cable
- alarm
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
- G08B13/1445—Mechanical actuation by lifting or attempted removal of hand-portable articles with detection of interference with a cable tethering an article, e.g. alarm activated by detecting detachment of article, breaking or stretching of cable
- G08B13/1454—Circuit arrangements thereof
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses an intelligent monitoring system for preventing a street lamp cable from being stolen, which belongs to the technical field of cable anti-theft systems and comprises a power supply adaptation module, a detection module, a signal processing module and an alarm module, wherein the detection module is used for detecting whether a street lamp cable is broken or not, when the street lamp cable is broken, a signal is generated, the signal processing module is used for receiving the signal generated by the detection module, processing the signal and then controlling the alarm module to alarm. Can detect the on-off road condition of street lamp cable by detection module, during the circuit break, produce the signal, and produce alarm signal according to the signal via signal processing module, and then produce the warning by alarm module again, improved control dynamics and the efficiency to the street lamp cable, produce the outage when the street lamp cable opens circuit through setting up the electro-magnet, and lose magnetism, make the briquetting support pressure sensor, and then make pressure sensor produce pressure signal, make the efficiency that detects higher like this, and the error is less.
Description
Technical Field
The invention relates to the technical field of cable anti-theft systems, in particular to an anti-theft intelligent monitoring system and method for a street lamp cable.
Background
The street lamp is used for illuminating the road, and when the street lamp cable received destruction, the street lamp will lose the illumination effect, and then influences the illumination of road, and the current street lamp cable theftproof mainly relies on the manpower to patrol and control, and obviously this kind of mode makes street lamp cable monitoring efficiency and control dynamics lower, can't satisfy the street lamp cable theftproof control demand of great scale or multinode.
Based on the above, the invention designs an intelligent monitoring system and method for preventing the street lamp cable from being stolen, so as to solve the problems.
Disclosure of Invention
The invention aims to provide an intelligent monitoring system and an intelligent monitoring method for street lamp cable theft prevention, which are used for solving the problems that the street lamp provided in the background technology is used for illuminating a road, when the street lamp cable is damaged, the street lamp loses the illumination effect, and further the illumination of the road is influenced, and the street lamp cable theft prevention is mainly monitored by manpower patrol at present, so that the street lamp cable monitoring efficiency and the monitoring force are obviously lower, and the requirements of the street lamp cable theft prevention monitoring of a large scale or multiple nodes cannot be met.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a street lamp cable theftproof intelligent monitoring system, includes power adaptation module, detection module, signal processing module, alarm module, power adaptation module and street lamp cable loop electric connection to adapt the power of street lamp cable to the low voltage power supply that supplies detection module, signal processing module, alarm module work to use, detection module and street lamp cable loop electric connection, and be used for detecting whether the street lamp cable produces and opens circuit, when the street lamp cable produces and opens circuit, will produce the signal, signal processing module is used for receiving the signal that detection module produced, and handles the signal, and the re-control alarm module reports to the police.
Preferably, the detection module includes a detection seat of demountable installation in the street lamp post, be equipped with the installation cavity of cavity form in the detection seat, be equipped with a support in the installation cavity, the slide bar is worn to be equipped with on the support vertically, the slide bar can freely slide from top to bottom on the support, and its upper end is equipped with a slider of making by the magnetic conduction material, be equipped with the electro-magnet that uses with the slider cooperation on the support, the slider top is equipped with the briquetting, install pressure sensor on the roof in the installation cavity, pressure sensor and signal processing module communication connection, the cover is equipped with reset spring on the slide bar, reset spring elasticity direction both ends are respectively supported electromagnet, slider.
Preferably, the upper end of the detection seat is hinged with a plurality of first hinge rods and a plurality of second hinge rods sequentially from top to bottom, one ends of the first hinge rods and the second hinge rods, which are adjacent to each other and are far away from the detection seat, are jointly connected with a clamping plate, the length direction of the clamping plate is parallel to the axial direction of the detection seat, the detection seat is sleeved with a sliding ring capable of freely sliding up and down, the sliding ring is hinged with a plurality of connecting rods, the connecting rods are hinged with the second hinge rods in a one-to-one correspondence manner, the detection seat is sleeved with a threaded sleeve in a threaded manner, and the upper end face of the threaded sleeve abuts against the end face of the sliding ring.
Preferably, the detection seat is sleeved with a locking ring above the sliding ring, and is further sleeved with a spring, and two ends of the spring in the elastic direction respectively elastically abut against the locking ring and the sliding ring.
The working method of the anti-theft intelligent monitoring system for the street lamp cable comprises the following steps:
the power supply adapter module converts the power supply in the street lamp cable loop into a power supply which is suitable for the normal work of the detection module, the signal processing module, the alarm module and the wireless module;
the detection module detects the on-off of the street lamp cable loop, and when the street lamp cable loop is broken, the detection module generates a signal;
the signal processing module receives the signal generated by the detection module and processes the signal to generate an alarm signal;
the alarm module receives the alarm signal and gives an alarm;
the wireless modules are provided with a plurality of wireless modules and installed in a plurality of street lamps, the operation state of each street lamp is judged by forming an infinite multi-hop network, specifically, each wireless module respectively sends a position signal, if the N position wireless module receives the position signal of N +1, the position signal N is sent to the system, and so on, a data receiving terminal installed in a box transformer judges that the system operates normally after receiving the position signal of the position 1, if the N position does not receive the signal of the N +1 position, the judgment is carried out after delaying for 200ms, if the N position still does not receive the N +1 position signal but receives the position signal after the N +1, the N +1 position fault is judged, the system is not stolen, if the N +1 position signal is still not received and the signal after the N +1 position cannot be received, the system is judged to be stolen at the N +1 position, a buzzer connected with the N wireless module alarms at the moment, and sends a fault signal with a stolen mark, and the data processing terminal transmits the fault position and an alarm signal to a monitoring room after receiving the signal.
Compared with the prior art, the invention has the beneficial effects that: can detect the on-off road condition of street lamp cable by detection module, during the circuit break, produce the signal, and produce alarm signal according to the signal via signal processing module, and then produce the warning by alarm module again, improved control dynamics and the efficiency to the street lamp cable, produce the outage when the street lamp cable opens circuit through setting up the electro-magnet, and lose magnetism, make the briquetting support pressure sensor, and then make pressure sensor produce pressure signal, make the efficiency that detects higher like this, and the error is less.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a frame structure of an intelligent monitoring system for preventing street lamp cable from theft according to the present invention;
fig. 2 is a schematic view of an assembly structure of the detection module of the present invention.
In the drawings, the reference numbers indicate the following list of parts:
1-power adaptation module, 2-detection module, 3-signal processing module, 4-alarm module, 5-pressure sensor, 6-pressing block, 7-floating block, 8-reset spring, 9-electromagnet, 10-sliding rod, 11-locking ring, 12-spring, 13-sliding ring, 14-thread sleeve, 15-detection seat, 16-first hinge rod, 17-abutting plate, 18-second hinge rod, 19-bracket and 20-connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: an intelligent monitoring system for preventing the theft of a street lamp cable comprises a power supply adaptation module 1, a detection module 2, a signal processing module 3, an alarm module 4 and a wireless module, wherein the power supply adaptation module 1 is electrically connected with a street lamp cable loop, and adapts the power supply of the street lamp cable into a low-voltage power supply for the detection module 2, the signal processing module 3, the alarm module 4 and the wireless module to work, the detection module 2 is electrically connected with the street lamp cable loop and is used for detecting whether the street lamp cable is broken or not, when the street lamp cable is broken, a signal is generated, the signal processing module 3 is used for receiving the signal generated by the detection module 2 and processing the signal, and then controlling the alarm module 4 to alarm, the detection module 2 comprises a detection seat 15 which is detachably arranged in a street lamp post, a mounting cavity in the detection seat 15 is provided with a support 19 in the mounting cavity, a sliding rod 10 vertically penetrates through the support 19, the sliding rod 10 can freely slide up and down on the support 19, the upper end of the sliding rod is provided with a floating block 7 made of magnetic conductive materials, the support 19 is provided with an electromagnet 9 matched with the floating block 7 for use, the top of the floating block 7 is provided with a pressing block 6, a pressure sensor 5 is installed on the top wall in the installation cavity, the pressure sensor 5 is in communication connection with the signal processing module 3, the sliding rod 10 is sleeved with a reset spring 8, two ends of the elastic force direction of the reset spring 8 respectively and elastically abut against the electromagnet 9 and the floating block 7, when the street lamp cable is in a channel state, the electromagnet 9 is powered by the power supply adaptation module 1 to generate magnetism and drive the floating block 7 to move downwards and compress the reset spring 8, so that the pressing block 6 is separated from a state abutting against the surface of the pressure sensor 5, and the signal processing module 3 does not receive a pressure signal of the pressure sensor 5, when a circuit lamp cable is disconnected, the electromagnet 9 is powered off and loses magnetism, so that the reset spring 8 elastically abuts against the floating block 7, the pressing block 6 moves upwards and abuts against the pressure sensor 5, the pressure sensor 5 generates a pressure signal, the signal processing module 3 receives the pressure signal of the pressure sensor 5 and generates an alarm signal, the alarm module 4 receives the alarm signal and generates an alarm, the upper end of the detection seat 15 is sequentially hinged with a plurality of first hinge rods 16 and second hinge rods 18 from top to bottom, one ends of the adjacent first hinge rods 16 and second hinge rods 18, which are far away from the detection seat 15, are jointly connected with an abutting plate 17, the length direction of the abutting plate 17 is parallel to the axial direction of the detection seat 15, the detection seat 15 is sleeved with a sliding ring 13 capable of freely sliding up and down, the sliding ring 13 is hinged with a plurality of connecting rods 20, the connecting rod 20 is hinged with the second hinge rod 18 in a one-to-one correspondence manner, the thread sleeve 14 is sleeved on the detection seat 15, the upper end surface of the thread sleeve 14 is abutted against the end surface of the sliding ring 13, when the detection seat 15 is installed, firstly, the detection seat 15 extends into a lamp post of a street lamp, because the lamp post is hollow, the detection seat 15 can be clamped into the lamp post of the street lamp, then, the thread sleeve 14 is rotated, the thread sleeve 14 is screwed on the detection seat 15, and simultaneously, the sliding ring 13 is driven to move upwards, so that the connecting rod drives the second hinge rod 18 to swing, further, a plurality of abutting plates 17 are mutually unfolded and abut against the inner wall of the lamp post of the street lamp, the detection seat 15 can be tightly clamped and installed in the lamp post, the locking ring 11 positioned above the sliding ring 13 is sleeved on the detection seat 15, the spring 12 is also sleeved on the locking ring 11, and the sliding ring 13 are respectively elastically abutted at two ends of the spring 12 in the elastic direction, the sliding ring 13 can move downwards in a natural state, the abutting plate 17 is guaranteed to be in an opening state, a plurality of wireless modules are arranged in a plurality of street lamps, the wireless modules form an infinite multi-hop network to judge the running state of each street lamp, specifically, each wireless module respectively sends a position signal, if the N position wireless module receives the position signal of N +1, the position signal N is sent to a system, and by analogy, a data receiving terminal arranged in a box transformer receives the position signal of the position 1 and then judges that the system runs normally, if the N position does not receive the signal of the N +1 position, the judgment is carried out after delaying for 200ms, if the N +1 position signal is still not received but the position signal after the N +1 is received, the fault of the N +1 position is judged, the system is not stolen, if the N +1 position signal is still not received and the signal cannot be received after the N +1 position, the system is judged to be stolen at the N +1 position, a buzzer connected with the N wireless module alarms, the fault signal with a stolen mark is sent, and the fault signal is transmitted to a monitoring room after the data processing terminal receives the fault signal and the monitoring room.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The anti-theft intelligent monitoring system for the street lamp cable is characterized by comprising a power supply adaptation module (1), a detection module (2), a signal processing module (3) and an alarm module (4), wherein the power supply adaptation module (1) is electrically connected with a street lamp cable loop and adapts a power supply of the street lamp cable into a low-voltage power supply for the detection module (2), the signal processing module (3) and the alarm module (4) to work, the detection module (2) is electrically connected with the street lamp cable loop and is used for detecting whether the street lamp cable is broken or not, when the street lamp cable is broken, a signal is generated, the signal processing module (3) is used for receiving the signal generated by the detection module (2), processing the signal and controlling the alarm module (4) to alarm;
the detection module (2) comprises a detection seat (15) which is detachably mounted in a street lamp post, a mounting cavity in a cavity form is arranged in the detection seat (15), a support (19) is arranged in the mounting cavity, a sliding rod (10) vertically penetrates through the support (19), the sliding rod (10) can freely slide up and down on the support (19), a floating block (7) made of a magnetic material is arranged at the upper end of the sliding rod, an electromagnet (9) matched with the floating block (7) is arranged on the support (19), a pressing block (6) is arranged at the top of the floating block (7), a pressure sensor (5) is mounted on the inner top wall of the mounting cavity, the pressure sensor (5) is in communication connection with the signal processing module (3), a reset spring (8) is sleeved on the sliding rod (10), and two ends of the reset spring (8) in the elastic direction elastically abut against the electromagnet (9) and the floating block (7) respectively;
detect seat (15) upper end top-down and articulate in proper order have a plurality of first hinge pole (16), second hinge pole (18), and is adjacent first hinge pole (16), second hinge pole (18) keep away from the one end of detecting seat (15) and be connected with jointly and support tight board (17), support tight board (17) length direction with detect seat (15) axial parallel, it is equipped with can be from top to bottom free gliding slip ring (13) to detect the seat (15) and go up the cover, it has a plurality of connecting rods (20) to articulate on slip ring (13), connecting rod (20) and second hinge pole (18) one-to-one are articulated, it is equipped with thread bush (14) to detect the threaded bush on seat (15), thread bush (14) up end and slip ring (13) terminal surface counterbalance.
2. The intelligent monitoring system for street lamp cable theft prevention according to claim 1, characterized in that the detection seat (15) is sleeved with a locking ring (11) above the sliding ring (13), and is further sleeved with a spring (12), and two ends of the spring (12) in the elastic direction elastically abut against the locking ring (11) and the sliding ring (13) respectively.
3. A working method of a street lamp cable anti-theft intelligent monitoring system is characterized by comprising the following steps:
the power supply in the street lamp cable loop is converted into a power supply which is suitable for the normal work of the detection module (2), the signal processing module (3), the alarm module (4) and the wireless module by the power supply adaptation module (1);
the detection module (2) detects the on-off of a circuit lamp cable loop, and when the circuit lamp cable loop is broken, the detection module (2) generates a signal;
the signal processing module (3) receives the signal generated by the detection module (2), processes the signal and further generates an alarm signal;
the alarm module (4) receives the alarm signal and gives an alarm;
the wireless module is provided with a plurality of wireless modules and installed in a plurality of street lamps, and the wireless modules form an infinite multi-hop network to judge the running state of each street lamp, concretely, each wireless module respectively sends a position signal, if the N position wireless module receives the position signal of N +1, the position signal N is sent to the system, and so on, a data receiving terminal installed in the box transformer judges that the system runs normally after receiving the position signal of the position 1, if the N position does not receive the signal of the position N +1, the time is delayed for 200ms, the judgment is carried out, if the N position still does not receive the signal of the position N +1 but receives the position signal after the position of the position N +1, the position of the position N +1 is judged to be stolen, if the signal of the position N +1 is still not received and the signal cannot be received after the position of the position N +1, the system is judged to be stolen at the position of the position N +1, a buzzer connected with the N wireless module alarms, and sends a fault signal with a stolen mark, and the data processing terminal transmits the fault position and an alarm signal to a monitoring room after receiving the signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111187681.3A CN113936404B (en) | 2021-10-12 | 2021-10-12 | Anti-theft intelligent monitoring system and method for street lamp cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111187681.3A CN113936404B (en) | 2021-10-12 | 2021-10-12 | Anti-theft intelligent monitoring system and method for street lamp cable |
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| CN113936404A CN113936404A (en) | 2022-01-14 |
| CN113936404B true CN113936404B (en) | 2023-02-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091403A (en) * | 2014-06-30 | 2014-10-08 | 国家电网公司 | Burglary warning device for power cable to be put into operation |
| CN106157509A (en) * | 2016-08-18 | 2016-11-23 | 合肥大明节能科技股份有限公司 | Cable anti-theft device |
| CN110517430A (en) * | 2019-07-26 | 2019-11-29 | 安徽静深实业有限公司 | A kind of road lighting cable anti-thefting monitoring method |
| CN214226068U (en) * | 2021-01-28 | 2021-09-17 | 沈阳达能电安全高新产业技术研究院有限公司 | Transmission line burglar alarm |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009134707A (en) * | 2007-11-01 | 2009-06-18 | Osamu Mogi | Alarm device and alarm system |
| CN103407403B (en) * | 2013-07-22 | 2016-01-06 | 提示器有限公司 | Thing prompting device is with before car |
| CN109969028A (en) * | 2019-05-17 | 2019-07-05 | 石河子大学 | Intelligent charging spot auto-power-off device |
-
2021
- 2021-10-12 CN CN202111187681.3A patent/CN113936404B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091403A (en) * | 2014-06-30 | 2014-10-08 | 国家电网公司 | Burglary warning device for power cable to be put into operation |
| CN106157509A (en) * | 2016-08-18 | 2016-11-23 | 合肥大明节能科技股份有限公司 | Cable anti-theft device |
| CN110517430A (en) * | 2019-07-26 | 2019-11-29 | 安徽静深实业有限公司 | A kind of road lighting cable anti-thefting monitoring method |
| CN214226068U (en) * | 2021-01-28 | 2021-09-17 | 沈阳达能电安全高新产业技术研究院有限公司 | Transmission line burglar alarm |
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