CN106850121A - The alarm interference unit of long range magnetic communication - Google Patents
The alarm interference unit of long range magnetic communication Download PDFInfo
- Publication number
- CN106850121A CN106850121A CN201610987988.4A CN201610987988A CN106850121A CN 106850121 A CN106850121 A CN 106850121A CN 201610987988 A CN201610987988 A CN 201610987988A CN 106850121 A CN106850121 A CN 106850121A
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- CN
- China
- Prior art keywords
- interference
- alarm
- shell
- connecting plate
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/822—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by detecting the presence of a surveillance, interception or detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of alarm interference unit of long range magnetic communication, including alarm modules and interference module；The alarm modules include alarm shell, detection coil, connecting plate, and the detection coil is located in alarm shell, and connecting plate is connected to alarm modules and interference module；The interference module includes interference shell, and positioned at magnetic pole piece, permanent magnet, piezoelectric ceramic actuator and the Box Cover disturbed in shell.The present invention can make the security of the magnetic signal in magnetic communication transmission line be protected.
Description
【Technical field】
The present invention relates to the technical field of communication equipment, the particularly technical field of magnetic communication alarm interference unit.
【Background technology】
The main technical advantage of magnetic communication be carry out information transfer in the range of short distance (within 10 centimetres) can be from physics
Prevent third-party monitoring in aspect, security is very high, but in practical application, the real needs of site environment possibly cannot expire
The short-range communication of foot is, it is necessary to extend the effective propagation path of magnetic communication using magnetic communication transmission line, this is just for third party eavesdrops
There is provided certain operating space, so needing a kind of device that information protection is provided for long range magnetic communication.
【The content of the invention】
The purpose of the present invention is just to provide for a kind of alarm interference unit of long range magnetic communication, can transmit magnetic communication
The security of the magnetic signal in line is protected.
To achieve the above object, the present invention proposes a kind of alarm interference unit of long range magnetic communication, including alarm modules
And interference module；
The alarm modules include：
Alarm shell, the alarm shell in a ring, is provided with a semi-enclosed annular bin, outside alarm in alarm shell
Shell is provided with circumferential first array fixing hole in one end of the opening direction of the annular bin；
Detection coil, the detection coil has multiturn, and one or more valve electric capacity are in series with detection coil；
Connecting plate, the connecting plate is in annular, and circumferential connection is respectively arranged with the both ends of the surface of connecting plate
Post, in the connecting pole first array fixing hole of insertion of connecting plate one end, is closed the annular bin；
The interference module includes：
Interference shell, the interference shell includes integrally formed wire ring set and interference case, and the interference case is located at institute
State on the side wall of wire ring set, a semi-enclosed interference operation storehouse is provided with the interference case, in the interference operation storehouse
Two pole shoe bores being conducted with the endoporus of wire ring set are provided with, the interference case is in the side of interference operation storehouse opening direction
Casing cap bore is provided with, the end of the wire ring set is provided with the first array fixing hole aligned identical structure second
Array fixing hole, the connecting pole of the connecting plate other end is inserted into the second array fixing hole；
Magnetic pole piece, the magnetic pole piece has two, and the bottom of magnetic pole piece has cambered surface, and magnetic pole piece can be made to straddle transmission
On the cylindrical side of wire；
Permanent magnet, the permanent magnet is arranged between two magnetic pole pieces；
Piezoelectric ceramic actuator, the piezoelectric ceramic actuator has two groups, is respectively symmetrically and is distributed in two magnetic pole pieces
Both sides, center and the permanent magnet of piezoelectric ceramic actuator are centrally located in same level；
Box Cover, is provided with lid fixing axle at the corner of the Box Cover, the lid fixing axle is inserted in the casing
In cap bore.
Beneficial effects of the present invention：The present invention is integrated by alarm modules and interference module, can be to magnetic communication transmission line
In the security of magnetic signal ensured that the alarm interference unit is easily mounted on magnetic communication transmission line；Using piezoelectric ceramics
Driver carries out interference driving, and power consumption is relatively low, and sensitivity is high；Valve electric capacity is set in detection coil, really magnetic can be avoided to believe
Number induced-current is caused, accuracy is high.
Feature of the invention and advantage will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is the overall structure diagram of the alarm interference unit of long range magnetic communication of the present invention；
Fig. 2 is the decomposition texture schematic diagram of the alarm interference unit of long range magnetic communication of the present invention；
Fig. 3 is the enlarged drawing in A portions in Fig. 2；
Fig. 4 is the structural representation of interference shell in the present invention；
Fig. 5 is the structural representation of alarm shell in the present invention.
In figure：1- alarms shell, 2- connecting plates, 3- interference shell, 4- Box Covers, 5- detection coils, 6- magnetic pole pieces, 7- are forever
Magnet, 8- piezoelectric ceramic actuators, 9- valves electric capacity, 101- annular bins, the first arrays of 102- fixing hole, 21- fixed columns, 31-
Wire ring set, the second arrays of 311- fixing hole, 32- interference case, 321- interference operation storehouse, 322- pole shoe bores, 323- casings cap bore,
401- lid fixing axles.
【Specific embodiment】
Refering to Fig. 1~Fig. 5, the alarm interference unit of long range magnetic communication of the present invention, including alarm modules and interference module；
The alarm modules include：
Alarm shell 1, the alarm shell 1 in a ring, a semi-enclosed annular bin 101 is provided with alarm shell 1,
Alarm shell 1 is provided with circumferential first array fixing hole 102 in one end of the opening direction of the annular bin 101；
Detection coil 5, the detection coil 5 has multiturn, and one or more valve electric capacity 9 are in series with detection coil 5；
Connecting plate 2, the connecting plate 2 is in annular, and circumferential company is respectively arranged with the both ends of the surface of connecting plate 2
Post 21 is connect, in the first array fixing hole 102 of insertion of connecting pole 21 of the one end of connecting plate 2, is closed the annular bin 101；
The interference module includes：
Interference shell 3, the interference shell 3 includes integrally formed wire ring set 31 and interference case 32, the interference case
32 are located on the side wall of the wire ring set 31, and a semi-enclosed interference operation storehouse 321, institute are provided with the interference case 32
State and two pole shoe bores 322 being conducted with the endoporus of wire ring set 31 are provided with interference operation storehouse 321, the interference case 32 exists
The side of the interference operation opening direction of storehouse 321 is provided with casing cap bore 323, the end of the wire ring set 31 be provided with it is described
Second array fixing hole 311 of the aligned identical structure of the first array fixing hole 102, the connecting pole 21 of the other end of the connecting plate 2
It is inserted into the second array fixing hole 311；
Magnetic pole piece 6, the magnetic pole piece 6 has two, and the bottom of magnetic pole piece 6 has cambered surface, can straddle magnetic pole piece 6
On the cylindrical side of transfer wire；
Permanent magnet 7, the permanent magnet 7 is arranged between two magnetic pole pieces 6；
Piezoelectric ceramic actuator 8, the piezoelectric ceramic actuator 8 has two groups, is respectively symmetrically and is distributed in two magnetic pole pieces 6
Both sides, the center of piezoelectric ceramic actuator 8 is centrally located in same level with permanent magnet 7；
Box Cover 4, is provided with lid fixing axle 401 at the corner of the Box Cover 4, the lid fixing axle 401 is inserted in
In the casing cap bore 323.
The course of work of the present invention：
The alarm interference unit of long range magnetic communication of the present invention in the course of the work, magnetic communication transmission line is passed through the police of annular
The endoporus of report shell 1 and wire ring set 31, when there is real magnetic signal in transmission line, because magnetic signal is steady, in valve electricity
Hold in the presence of 9, induced-current will not be produced in detection coil 5, when the magnetic signal in transmission line is eavesdropped, magnetic can be believed
Number there is flux leakage interference, now produce AC signal in detection coil 5, trigger alarm；The He of permanent magnet 7 in interference module
The magnetic circuit of the composition of magnetic pole piece 6, can be to magnetic field be flowed into, when piezoelectric ceramic actuator 8 receives electric drive in transmission line, can be to permanent magnet
7 are oppressed, so that the magnetic flux in permanent magnet 7 changes, and then interferes to the magnetic flux in transmission line, make original
The true magnetic signal for coming is destroyed, and protects the security of magnetic information.
The present invention, by the integrated of alarm modules and interference module, can be to the safety of the magnetic signal in magnetic communication transmission line
Property is ensured that the alarm interference unit is easily mounted on magnetic communication transmission line；Interference drive is carried out using piezoelectric ceramic actuator
Dynamic, power consumption is relatively low, and sensitivity is high；Valve electric capacity is set in detection coil, really magnetic signal can be avoided to cause induced-current, it is accurate
True property is high.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (1)
1. a kind of alarm interference unit of long range magnetic communication, it is characterised in that：Including alarm modules and interference module；
The alarm modules include：
Alarm shell (1), the alarm shell (1) in a ring, a semi-enclosed annular bin is provided with alarm shell (1)
(101), alarm shell (1) is provided with circumferential first array in one end of the opening direction of the annular bin (101)
Fixing hole (102)；
Detection coil (5), the detection coil (5) is in series with one or more valve electric capacity with multiturn in detection coil (5)
(9)；
Connecting plate (2), the connecting plate (2) is respectively arranged with circumferential in annular in the both ends of the surface of connecting plate (2)
Connecting pole (21), in connecting pole (21) the first array fixing hole (102) of insertion of connecting plate (2) one end, makes the annular bin
(101) closed；
The interference module includes：
Interference shell (3), interference shell (3) includes integrally formed wire ring set (31) and interference case (32), described dry
Case (32) is disturbed on the side wall of the wire ring set (31), a semi-enclosed interference behaviour is provided with interference case (32)
Make storehouse (321), two pole shoe bores being conducted with the endoporus of wire ring set (31) to be provided with interference operation storehouse (321)
(322), interference case (32) is provided with casing cap bore (323) in the side of interference operation storehouse (321) opening direction, described to lead
The end of wire loop set (31) is provided with the second array fixing hole with the first array fixing hole (102) aligned identical structure
(311), the connecting pole (21) of connecting plate (2) other end is inserted into the second array fixing hole (311)；
Magnetic pole piece (6), with two, the bottom of magnetic pole piece (6) has cambered surface to the magnetic pole piece (6), can ride magnetic pole piece (6)
Across on the cylindrical side of transfer wire；
Permanent magnet (7), the permanent magnet (7) is arranged between two magnetic pole pieces (6)；
Piezoelectric ceramic actuator (8), the piezoelectric ceramic actuator (8) is respectively symmetrically and is distributed in two magnetic pole pieces with two groups
(6) both sides, center and the permanent magnet (7) of piezoelectric ceramic actuator (8) are centrally located in same level；
Box Cover (4), is provided with lid fixing axle (401), the lid fixing axle (401) at the corner of the Box Cover (4)
It is inserted in the casing cap bore (323).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610987988.4A CN106850121B (en) | 2016-11-10 | 2016-11-10 | The alarm interference unit of long range magnetic communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610987988.4A CN106850121B (en) | 2016-11-10 | 2016-11-10 | The alarm interference unit of long range magnetic communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106850121A true CN106850121A (en) | 2017-06-13 |
| CN106850121B CN106850121B (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610987988.4A Expired - Fee Related CN106850121B (en) | 2016-11-10 | 2016-11-10 | The alarm interference unit of long range magnetic communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106850121B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204347100U (en) * | 2014-12-12 | 2015-05-20 | 中国石油集团东方地球物理勘探有限责任公司 | Magnetic field shielding device |
| CN105323031A (en) * | 2015-11-12 | 2016-02-10 | 浙江大学 | Anti-eavesdropping device based on electromagnetic interference attack |
-
2016
- 2016-11-10 CN CN201610987988.4A patent/CN106850121B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204347100U (en) * | 2014-12-12 | 2015-05-20 | 中国石油集团东方地球物理勘探有限责任公司 | Magnetic field shielding device |
| CN105323031A (en) * | 2015-11-12 | 2016-02-10 | 浙江大学 | Anti-eavesdropping device based on electromagnetic interference attack |
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| Publication number | Publication date |
|---|---|
| CN106850121B (en) | 2019-08-16 |
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Granted publication date: 20190816 Termination date: 20201110 |