CN201666938U - Transmission line coupling-type inbreak positioning cable sensor - Google Patents
Transmission line coupling-type inbreak positioning cable sensor Download PDFInfo
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- CN201666938U CN201666938U CN2009202862604U CN200920286260U CN201666938U CN 201666938 U CN201666938 U CN 201666938U CN 2009202862604 U CN2009202862604 U CN 2009202862604U CN 200920286260 U CN200920286260 U CN 200920286260U CN 201666938 U CN201666938 U CN 201666938U
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Abstract
The utility model discloses a transmission line coupling-type inbreak positioning cable sensor, which can precisely position an invader and can effectively solve the false alarm problem due to gale, hailstone and fragment impact. The technical scheme is as follows: the transmission line coupling-type inbreak positioning cable sensor consists of a sensing cable, an excitation signal unit, a signal receiving unit, a signal processing unit, a terminal matching unit and a time sequence controlling unit. When the invader appears near the sensor, the relative position of a sensing cable near the invader in a sensing cable floating cabin changes, thus affecting the coupling impedance of the excitation signal transmission line; and the change further affects the time that the coupling pulse signal reaches the signal receiving unit. The transmission line coupling-type inbreak positioning cable sensor obtains the relative position of the disturbance point and the signal receiving unit by detecting the time domain signal, thus achieving the aim of positioning the inbreak target.
Description
Technical field
The utility model relates to the warning crime prevention device that is used for the electronic periphery security system, relates in particular to carry out pinpoint transmission line manifold type invasion location cable sensor to the invador.
Background technology
At present, electronic periphery security system detecting intrusion target cable sensor commonly used has leaky cable sensor, Fibre Optical Sensor etc.
The leaky cable sensor is made up of transmitter unit, receiving element, firing cable, reception cable and input processing unit.Taking precautions against two cables (leaky cable) of letting out seam that have of regional parallel laying, be respectively firing cable and receive cable at a distance of certain distance.In the high-frequency energy feed-in firing cable that transmitter unit produces, and in cable, transmit.When energy when cable transmits, portion of energy is let out the seam space of bleeding by it, forms the electromagnetic field radiation district taking precautions against the zone, wherein part energy is coupled to the reception cable.When the invador enters the strick precaution zone, this part electromagnetic energy that the reception cable receives is disturbed, cause that being connected to the signal of adding on the cable that receiving element received changes, obtain warning message after the signal process input processing unit processes of this variation.
The acting force that the invador applies optical fiber (impacting or vibrations) can make optical fiber produce deformation, and Fibre Optical Sensor detects the effect that produces owing to deformation and obtains invasion information and positional information thereof.
The leaky cable sensor is relatively poor to the station-keeping ability of invasion, and the Fibre Optical Sensor cost is higher.Above-mentioned two kinds of sensors are all easily affected by environment, and especially the fragment that wind, hail, strong wind are taken up does not have basic solution to the false-alarm that the disturbance of sensor causes.
The utility model content
The purpose of this utility model is to address the above problem, and a kind of transmission line manifold type invasion location cable sensor is provided, and can accurately locate the invador, and can effectively solve because the false-alarm problem that strong wind, hail and fragment bump bring.
The technical solution of the utility model is: the utility model has disclosed a kind of transmission line manifold type invasion location cable sensor, comprising:
The pumping signal unit, the emission excitation signal pulse;
Sensing cable, connect this pumping signal unit, constitute by outermost protective sleeve, screen layer and the pumping signal lead, auxiliary traverse and the responsive lead that are enclosed in this screen layer, this sensitivity lead is installed in responsive lead and floats in the cabin, this pumping signal lead, this auxiliary traverse and should the sensitivity lead float and fill by medium between the cabin;
The terminal matching unit connects this sensing cable, realizes the coupling with cable resistance;
Wherein this pumping signal lead, this auxiliary traverse and/or this screen layer, this terminal matching unit constitute the pumping signal transmission line, this pumping signal unit emission excitation signal pulse is to this pumping signal lead, pumping signal is transmitted in this pumping signal transmission line that this pumping signal lead, this auxiliary traverse and/or this screen layer, this terminal matching unit constitute, and forms electromagnetic field around this pumping signal transmission line;
This sensitivity lead, this auxiliary traverse and/or this screen layer, this terminal matching unit constitute sensitive signal transmission line, this sensitive signal transmission line by and this pumping signal transmission line between coupling receive this excitation signal pulse;
Signal receiving unit connects this sensing cable, receives this excitation signal pulse of presenting from this sensitive signal transmission line;
Signal processing unit connects this signal receiving unit, this excitation signal pulse that receives is carried out time domain handle, and obtains intrusion alarm information and invador's locating information;
The time domain control module connects this pumping signal unit and this signal processing unit respectively, for this pumping signal unit provides work schedule and excitation pulse signal, for this signal processing unit provides work schedule.
According to an embodiment of transmission line manifold type of the present utility model invasion location cable sensor, this pumping signal lead, this auxiliary traverse and the medium that should the sensitivity lead floats between the cabin are low loss dielectrics.
Embodiment according to transmission line manifold type invasion of the present utility model location cable sensor, the relative position of this sensitivity lead in this sensitivity lead floats the cabin changes owing to the invador occurring, the mutual impedance of influence and this pumping signal transmission line, thereby influence the time that this excitation signal pulse arrives this signal receiving unit, this signal processing unit detects the relative position that obtains between disturbance point and signal receiving unit by time-domain signal, thus the location invador.
According to an embodiment of transmission line manifold type invasion of the present utility model location cable sensor, this signal processing unit also has a network interface, is used for intrusion alarm information and invador's locating information are uploaded to system manager terminal.
According to an embodiment of transmission line manifold type invasion of the present utility model location cable sensor, this signal receiving unit is connected on this sensitivity lead, this auxiliary traverse and/or this screen layer.
The utility model contrast prior art has following beneficial effect: transmission line manifold type invasion of the present utility model location cable sensor is made up of sensing cable, pumping signal unit, signal receiving unit, signal processing unit, terminal matching unit and timing control unit.When the invador occurring near the sensor, near the relative position of the sensitive cable the invador in sensitive cable floats the cabin changes, and influenced the mutual impedance with the pumping signal transmission line.This variation further influences the time of coupling pulse signal arriving signal receiving element.The utility model detects the relative position that obtains between disturbance point and the signal receiving unit by time-domain signal, thereby reaches the location purpose to intrusion target.
Description of drawings
Fig. 1 is the theory diagram of the embodiment of transmission line manifold type invasion of the present utility model location cable sensor.
Fig. 2 is the schematic cross-section of sensing cable of the present utility model.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the principle of the embodiment of transmission line manifold type invasion of the present utility model location cable sensor.See also Fig. 1, the invasion location cable sensor of present embodiment consists of the following components: sensing cable 1, pumping signal unit 2, signal receiving unit 3, signal processing unit 4, timing control unit 5 and terminal matching unit 6.Annexation between these unit is: the output of timing control unit 5 is connected respectively to pumping signal unit 2 and signal processing unit 4.The output of pumping signal unit 2 connects sensing cable 1, and the output of sensing cable 1 is connected respectively to signal receiving unit 3 and terminal matching unit 6.The output of signal receiving unit 3 connects signal processing unit 4.
The structure of sensing cable is to be made of outermost protective sleeve 13, screen layer 12 and the pumping signal lead 7, auxiliary traverse 8 and the responsive leads 9 that are enclosed in the screen layer 12 as shown in Figure 2.Responsive lead 9 is installed in the unsteady cabin 10 of responsive lead.Pumping signal lead 7, auxiliary traverse 8 and responsive lead float and fill by low loss dielectric between the cabin 10, for example low-density foamed polyethylene.
Pumping signal lead 7, auxiliary traverse 8 and/or screen layer 12 and terminal matching unit 6 constitute the pumping signal transmission line.Responsive lead 9, auxiliary traverse 8 and/or screen layer 12 and terminal matching unit 6 constitute the sensitive signal transmission line.
When excitation signal pulse are launched to the pumping signal lead 7 of sensing cable 1 in pumping signal unit 2, pumping signal is transmitted in the pumping signal transmission line of pumping signal lead 7, auxiliary traverse 8 and/or screen layer 12 and terminal matching unit 6 formations, and forms electromagnetic field near the pumping signal transmission line.Signal receiving unit 3 is connected on responsive lead 9, auxiliary traverse 8 and/or the screen layer 12 of sensing cable 1, and the sensitive signal transmission line that responsive lead 9, auxiliary traverse 8 and/or screen layer 12 and terminal matching unit 6 constitutes receives pulse signal by the coupling between it and the pumping signal transmission line and presents to signal receiving unit 3.The signal that 4 pairs of signal receiving units 3 of signal processing unit are sent here carries out time domain to be handled, obtain intrusion alarm information and invador's locating information, and result is sent to system manager terminal by network interface, time domain is handled similar radar fix, is radiolocation processing means commonly used.System manager terminal can be discerned invador's classification by the model bank that strong wind, hail, toy, fragment, people's etc. disturbance information is set up, and reduces false-alarm.Timing control unit 5 provides work schedule and excitation pulse signal for pumping signal unit 2, for signal processing unit 4 provides work schedule.
Responsive lead 9 is in the unsteady cabin 10 of responsive lead.Do not having near the sensing cable 1 under the situation of disturbance, responsive lead 9 is in original state, and the coupling pulse signal that signal receiving unit 3 receives has on time domain the approximate constant time difference time of arrival.When the invador occurring near the sensor, near the relative position of the sensitive cable 9 the invador in sensitive cable floats cabin 10 changes, and influenced the mutual impedance with the pumping signal transmission line.This variation has produced influence to the time of coupling pulse signal arriving signal receiving element 3.The method that signal processing unit 4 detects by time-domain signal can obtain the relative position between disturbance point and the signal receiving unit 3, thereby reaches the location purpose to intrusion target.
The foregoing description provides to those of ordinary skills and realizes or use of the present utility model; those of ordinary skills can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (4)
1. a transmission line manifold type invasion location cable sensor is characterized in that, comprising:
The pumping signal unit, the emission excitation signal pulse;
Sensing cable, connect this pumping signal unit, constitute by outermost protective sleeve, screen layer and the pumping signal lead, auxiliary traverse and the responsive lead that are enclosed in this screen layer, this sensitivity lead is installed in responsive lead and floats in the cabin, this pumping signal lead, this auxiliary traverse and should the sensitivity lead float and fill by medium between the cabin;
The terminal matching unit connects this sensing cable, realizes the coupling with cable resistance;
Wherein this pumping signal lead, this auxiliary traverse, this screen layer, this terminal matching unit constitute the pumping signal transmission line, this pumping signal unit emission excitation signal pulse is to this pumping signal lead, pumping signal is transmitted in this pumping signal transmission line that this pumping signal lead, this auxiliary traverse, this screen layer, this terminal matching unit constitute, and forms electromagnetic field around this pumping signal transmission line;
This sensitivity lead, this auxiliary traverse, this screen layer, this terminal matching unit constitute sensitive signal transmission line, this sensitive signal transmission line by and this pumping signal transmission line between coupling receive this excitation signal pulse;
Signal receiving unit connects this sensing cable, receives this excitation signal pulse of presenting from this sensitive signal transmission line;
Signal processing unit connects this signal receiving unit, this excitation signal pulse that receives is carried out time domain handle, and obtains intrusion alarm information and invador's locating information;
The time domain control module connects this pumping signal unit and this signal processing unit respectively, for this pumping signal unit provides work schedule and excitation pulse signal, for this signal processing unit provides work schedule.
2. transmission line manifold type according to claim 1 invasion location cable sensor is characterized in that, this pumping signal lead, this auxiliary traverse and the medium that should the sensitivity lead floats between the cabin are low loss dielectrics.
3. transmission line manifold type invasion according to claim 1 location cable sensor is characterized in that this signal processing unit also has a network interface, is used for intrusion alarm information and invador's locating information are uploaded to system manager terminal.
4. transmission line manifold type invasion according to claim 1 location cable sensor is characterized in that this signal receiving unit is connected on this sensitivity lead, this auxiliary traverse, this screen layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202862604U CN201666938U (en) | 2009-12-25 | 2009-12-25 | Transmission line coupling-type inbreak positioning cable sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202862604U CN201666938U (en) | 2009-12-25 | 2009-12-25 | Transmission line coupling-type inbreak positioning cable sensor |
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| Publication Number | Publication Date |
|---|---|
| CN201666938U true CN201666938U (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202862604U Expired - Fee Related CN201666938U (en) | 2009-12-25 | 2009-12-25 | Transmission line coupling-type inbreak positioning cable sensor |
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| Country | Link |
|---|---|
| CN (1) | CN201666938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298460A (en) * | 2018-09-26 | 2019-02-01 | 江苏史利姆智能测控技术有限公司 | A kind of device for preventing to dig disconnected optical cable |
| CN115128403A (en) * | 2022-07-27 | 2022-09-30 | 哈尔滨工业大学 | Online signal measurement method for power cable |
-
2009
- 2009-12-25 CN CN2009202862604U patent/CN201666938U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298460A (en) * | 2018-09-26 | 2019-02-01 | 江苏史利姆智能测控技术有限公司 | A kind of device for preventing to dig disconnected optical cable |
| CN115128403A (en) * | 2022-07-27 | 2022-09-30 | 哈尔滨工业大学 | Online signal measurement method for power cable |
| CN115128403B (en) * | 2022-07-27 | 2024-06-07 | 哈尔滨工业大学 | Online signal measurement method for power cable |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20121225 |