CN219202456U - Unmanned on duty security protection system - Google Patents
Unmanned on duty security protection system Download PDFInfo
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- CN219202456U CN219202456U CN202223420787.6U CN202223420787U CN219202456U CN 219202456 U CN219202456 U CN 219202456U CN 202223420787 U CN202223420787 U CN 202223420787U CN 219202456 U CN219202456 U CN 219202456U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
An unattended security system, comprising: the vibration detection device comprises a shell, a vibration detection assembly, an acceleration sensor array, an acceleration signal processor and a controller, wherein a part installation cavity is formed in the shell; the vibration detection assembly is configured to detect ground vibrations generated by the vibration source; the acceleration sensor array is arranged to detect ground wave vibration and output a primary acceleration signal; an acceleration signal processor receives the primary acceleration signal and processes it to output a secondary acceleration signal; the controller starts the acceleration sensor array to operate after receiving the vibration trigger signal from the vibration detection assembly; the controller receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source. The acceleration sensor array is in a non-running state in a normal state, so that the unmanned security system can run in a lower power consumption mode, standby power consumption of the unmanned security system can be reduced, and the unmanned security system is favorably deployed in more scenes.
Description
Technical Field
The utility model relates to the technical field of safety protection, in particular to an unattended operation safety protection system.
Background
For places needing to be limited to be accessed by unlicensed personnel, security personnel or security equipment is required to be provided for ensuring the security of the places so as to realize screening and forbidden access of the unlicensed personnel. Such as living facilities, power stations, inflammable and explosive material warehouses, etc., need to be effectively prevented to ensure the safety thereof. Thus, intrusion alert systems are becoming increasingly important in all aspects, and consumer demand is urgent. In important areas, in order to prevent illegal intrusion and various destructive activities, it is a conventional countermeasure to provide barriers or barriers (e.g., iron fences, wire fences, etc.) at the peripheral perimeter of these areas, with personnel being arranged to enhance patrol. The current advanced intrusion monitoring means comprise an active imaging mode such as infrared detection and a monitoring camera and a wired sensing mode such as an intelligent wall and a vibration sensing cable, but the intrusion monitoring means still have the problems of high manufacturing cost, dependence on operation of special personnel, monitoring blind areas and the like.
Disclosure of Invention
The utility model aims to provide an unattended security system.
To achieve the above object, an embodiment of the present utility model provides an unattended security system, including:
the shell is internally provided with a part installation cavity;
a vibration detection assembly configured to detect ground vibrations generated by a vibration source;
an acceleration sensor array configured to detect ground wave vibrations and output a primary acceleration signal;
the acceleration signal processor is electrically connected with the acceleration sensor array, and is used for receiving the primary acceleration signal and processing the primary acceleration signal to output a secondary acceleration signal;
the controller is electrically connected with the vibration detection assembly and the acceleration signal processor; the controller starts the acceleration sensor array to operate after receiving a vibration trigger signal from the vibration detection assembly; the controller receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source;
at least one of the vibration detection assembly, the acceleration sensor array, the acceleration signal processor, and the controller is mounted within the part mounting cavity.
In a preferred mode, the vibration detection assembly comprises a vibration sensor and a threshold detector, wherein the vibration sensor is electrically connected with the threshold detector, the threshold detector receives a preamble signal sent by the vibration sensor, and when the preamble signal is greater than a preset preamble signal threshold, the vibration detection assembly outputs a vibration trigger signal.
According to the scheme, the threshold detector can be used for screening the detected preamble signal, so that illegal invasion is screened, and the frequent false alarm of an unattended security system can be avoided.
In a preferred manner, the acceleration sensor array includes three acceleration sensors, and the acceleration sensors are circumferentially arranged at equal angular intervals on a horizontal plane.
According to the scheme, the acceleration sensor array is used for collecting the array signals of the ground waves, so that characteristic information and position information of the vibration signal source can be conveniently analyzed.
In a preferred manner, the acceleration signal processor performs high gain amplification, common mode filtering and noise reduction processing on the primary acceleration signal to output a secondary acceleration signal.
In a preferred mode, the vibration source display device further comprises a display terminal, wherein the display terminal is electrically connected with the controller and is used for displaying the category information and/or the position information of the vibration source.
According to the scheme, the display terminal arranged in the monitoring room or the on-duty station is used for displaying the category information and/or the position information of the vibration source, so that the convenience of deployment and installation of the unmanned security system can be improved, and the use scene and the convenience of use of the unmanned security system are enlarged.
In a preferred form, a battery is also included, the battery being mounted within the housing, the battery being configured to power the vibration detection assembly, the acceleration sensor array, the acceleration signal processor and the controller.
According to the scheme, the unattended security system can be operated in a lower power consumption mode; and the acceleration sensor array starts to operate and outputs acceleration signals only after the controller receives the vibration trigger signals, so that the standby power consumption of the unattended security system can be reduced, and the long-term uninterrupted operation of the unattended security system under near-zero power consumption is realized.
In a preferred manner, the controller comprises an FPGA and an MCU integrated on a circuit board.
According to the scheme, the FPGA and MCU dual-core processing unit is used for collecting and analyzing the signals of the acceleration sensor array, so that the method has the advantages of low power consumption and high-precision synchronous collection of multiple paths of signals.
In a preferred form, the vibration sensor is mounted in a lower portion of the part mounting cavity.
In a preferred mode, the part mounting cavity includes an upper mounting cavity and a lower mounting cavity that are independently provided, the vibration sensor is mounted in the lower mounting cavity, and the acceleration signal processor is mounted in the upper mounting cavity.
According to the unattended security system disclosed by the utility model, the pointed cone is further vertically fixed at the lower part of the shell.
When the unattended operation security system is used, the unattended operation security system is buried below the ground surface. When an intruded object enters the monitoring range, the vibration sensor is triggered and transmits a vibration trigger signal to the controller, and the controller 4 then starts the acceleration sensor array 5 to operate; the controller 4 receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source. Because the acceleration sensor array is in a non-operation state in a normal state (when no vibration trigger signal exists), the unattended security system can be operated in a lower power consumption mode; and the acceleration sensor array starts to operate and outputs acceleration signals only after the controller receives the vibration trigger signals, so that the standby power consumption of the unattended security system can be reduced, and the unattended security system is favorably deployed and used in more scenes.
Drawings
In order to more clearly illustrate the present utility model, the following description and the accompanying drawings of the present utility model will be given. It should be apparent that the figures in the following description merely illustrate certain aspects of some exemplary embodiments of the present utility model, and that other figures may be obtained from these figures by one of ordinary skill in the art without undue effort.
FIG. 1 is a schematic diagram of an unattended security system according to an embodiment of the utility model;
FIG. 2 is a schematic diagram of an acceleration sensor array and a controller according to a first embodiment of the present utility model;
fig. 3 is an enlarged partial view of the portion a in fig. 2.
In the drawings, the list of components represented by the various numbers is as follows:
1. the device comprises a shell, 2 parts mounting cavities, 3, a vibration sensor, 4, a controller, 5, an acceleration sensor array, 6, a battery, 7, a pointed cone, 8, a filter circuit, 9, an amplifying circuit, 10, a threshold detector, 11, a power supply control circuit, 12 and a circuit board.
Detailed Description
Various exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, numerical expressions and values, etc. set forth in these embodiments are to be construed as illustrative only and not as limiting unless otherwise stated.
The use of the terms "comprising" or "including" and the like in this disclosure means that elements preceding the term encompass the elements recited after the term, and does not exclude the possibility of also encompassing other elements.
All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Parameters of, and interrelationships between, components, and control circuitry for, components, specific models of components, etc., which are not described in detail in this section, can be considered as techniques, methods, and apparatus known to one of ordinary skill in the relevant art, but are considered as part of the specification where appropriate.
Fig. 1 is a schematic diagram of an unattended security system according to an embodiment of the utility model, and fig. 2 is a schematic diagram of an acceleration sensor array and a controller according to a first embodiment of the utility model. An unattended security system according to an embodiment of the utility model is described below with reference to fig. 1 and 2, which includes:
the shell 1, the inside of the shell 1 is provided with a part installation cavity 2; the housing is used for accommodating and mounting other parts and transmitting vibration from the outside to corresponding induction components (such as a vibration detection component and an acceleration sensor array) mounted in the housing. When the unattended security system is used, the shell needs to be buried in soil, and in order to avoid damage to the shell caused by environmental corrosion, the shell is preferably made of metal (aluminum and stainless steel) or plastic (such as ABS plastic) which is not easy to rust. At least one of a vibration detection assembly, an acceleration sensor array 5, an acceleration signal processor and a controller 4 constituting the unattended security system is installed in the part installation cavity 2. In the embodiment shown in fig. 1, the vibration sensor 3 is mounted at the lower portion of the component mounting cavity 2, and the pointed cone 7 is vertically fixed at the lower portion of the housing 1. The design through the pointed cone can be with ground vibration transfer to pointed cone and further pass through pointed cone and transmit to the casing and fix the vibration sensor in the casing lower part, can improve unmanned on duty security protection system's vibration monitoring sensitivity. In a further preferred embodiment, the component mounting cavity 2 inside the housing comprises an upper mounting cavity and a lower mounting cavity, which are separately provided, the vibration sensor 3 being mounted in the lower mounting cavity, and the acceleration signal processor being mounted in the upper mounting cavity.
A vibration detection assembly configured to detect ground vibrations generated by the vibration source; for example, the utility model can adopt a magnetic induction type geophone, and the geophone does not need to be supplied with power, and is characterized in that the external particle vibration drives the internal magnetic induction coil to cut magnetic force lines, so that the internal magnetic flux of the magnetic induction coil is changed, and a current abrupt change signal is generated for output. To vibration detection subassembly is according to the scheme in the casing inside, vibration detection subassembly is connected with the casing through firm rigid structure, makes ground vibration signal furthest remain and pass through the vibration detection subassembly of rigid structure conduction to the casing inside. For example, the connection of the vibration detection assembly to the housing may be achieved by bolting, welding, bonding, etc. In the use of unattended security systems, it is desirable to be able to monitor as much as possible all illegal intrusions while avoiding false alarms. To this end, in a preferred embodiment, the vibration detecting assembly includes a vibration sensor 3 and a threshold detector 10, where the vibration sensor 3 and the threshold detector 10 are electrically connected, and the threshold detector 10 receives a preamble signal sent by the vibration sensor 3, and when the preamble signal is greater than a set preamble signal threshold, the vibration detecting assembly outputs a vibration trigger signal. When the vibration sensor is a magnetic induction type geophone, the threshold detector receives a preamble signal sent by the magnetic induction type geophone as a voltage, and when the voltage value is larger than a set preamble signal threshold (a certain voltage value), the vibration detection component outputs a vibration trigger signal. The setting of the preamble signal threshold can be determined by adopting a test statistical method, for example, the preamble signal generated by the conventional invader at different distance positions from the unattended operation security system is tested and counted, and the lowest value of the preamble signal in the counted result is determined as the preamble signal threshold.
An acceleration sensor array 5, the acceleration sensor array 5 being arranged to detect ground wave vibrations and to output a primary acceleration signal; in one embodiment as shown in fig. 2, the acceleration sensor array 5 includes three acceleration sensors, which are circumferentially arranged at equal angular intervals on a horizontal plane. The array signals of the ground waves are collected through the acceleration sensor array, so that characteristic information and position information of the vibration signal source can be conveniently analyzed.
The acceleration signal processor is electrically connected with the acceleration sensor array 5, receives the primary acceleration signal and processes the primary acceleration signal to output a secondary acceleration signal; because the signal-to-noise ratio of the primary acceleration signal is low, interference of modal noise of various frequencies in the environment can be mixed. The amplitude of the original signal collected by the acceleration sensor array is generally in the level of one-digit millivolt, and the amplitude is greatly attenuated along with the increase of the distance from the acceleration sensor array, and a high-gain amplifying circuit is required to be designed for processing the original signal. Because the primary acceleration signal is a differential mode signal, common mode interference is very easy to occur in the transmission process, and noise caused by non-vibration conduction needs to be removed by common mode signal filtering on the original signal. In addition, the ground wave conduction mainly belongs to low-frequency band conduction, and high-frequency modal frequencies can be overlapped in the acquisition process by utilizing the acceleration sensor array, so that noise waves are filtered by low-frequency filtering hardware for noise reduction. In a preferred embodiment, the acceleration signal processor performs high gain amplification, common mode filtering and noise reduction processing on the primary acceleration signal to output a secondary acceleration signal (as shown in fig. 3); that is, in such an embodiment, the acceleration signal processor includes a high-gain amplifying circuit 9, a filter circuit 8, and a noise reduction processing circuit.
The controller 4 is electrically connected with the vibration detection assembly and the acceleration signal processor; the controller 4 starts the acceleration sensor array 5 to operate after receiving the vibration trigger signal from the vibration detection component; the controller 4 receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source; for example, the controller can be used for running a ResNet deep convolutional neural network in the prior art to perform characteristic analysis and processing on the secondary acceleration signal, and finally outputting vibration source type information; the location of the vibration source location may be determined by time delay estimation positioning in the prior art. In the embodiment shown in fig. 2, the controller 4 comprises an FPGA and an MCU integrated on the wiring board 12. The FPGA and MCU dual-core processing unit is used for collecting and analyzing signals of the acceleration sensor array, and has the advantages of low power consumption and high-precision synchronous collection of multipath signals.
When the unattended operation security system is used, the unattended operation security system is buried below the ground surface. When an intruded object enters the monitoring range, the vibration sensor is triggered and transmits a vibration trigger signal to the controller, and the controller 4 then starts the acceleration sensor array 5 to operate; the controller 4 receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source. Because the acceleration sensor array is in a non-operation state in a normal state (when no vibration trigger signal exists), the unattended security system can be operated in a lower power consumption mode; and the acceleration sensor array starts to operate and outputs acceleration signals only after the controller receives the vibration trigger signals, so that the standby power consumption of the unattended security system can be reduced, and the low-power consumption and low-cost operation is realized.
In order to realize that security personnel can check in a monitoring room or an on-duty station to further improve the unmanned security system, the utility model provides another unmanned security system which comprises: the vibration detection device comprises a shell 1, a vibration detection assembly, an acceleration sensor array 5, a controller 4 and a display terminal, wherein a part installation cavity 2 is formed in the shell 1; the vibration detection assembly, the acceleration sensor array, the acceleration signal processor and the controller are mounted in the part mounting cavity. The vibration detection assembly is configured to detect ground vibrations generated by the vibration source; the acceleration sensor array 5 is arranged to detect ground wave vibrations and output a primary acceleration signal; the acceleration signal processor is electrically connected with the acceleration sensor array 5, receives the primary acceleration signal and processes the primary acceleration signal to output a secondary acceleration signal; the controller 4 is electrically connected with the vibration detection assembly and the acceleration signal processor; the controller 4 starts the acceleration sensor array 5 to operate after receiving the vibration trigger signal from the vibration detection component; the controller 4 receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source. The display terminal is electrically connected with the controller 4, and is used for displaying the category information and/or the position information of the vibration source. The display terminal can enable a display with an image output function, such as an LED display.
When the unattended operation security system of the embodiment of the utility model is used, the shell and the internal parts of the unattended operation security system (namely, the part of the unattended operation security system except the display terminal) are buried below the ground surface, and the display terminal is arranged in a monitoring room where the attendees are. When an intruded object enters the monitoring range, the vibration sensor is triggered and transmits a vibration trigger signal to the controller, and the controller 4 then starts the acceleration sensor array 5 to operate; the controller 4 receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source, which is displayed by a display terminal located in the monitoring room.
The unattended security system provided by the embodiment of the utility model can have various power supply modes, for example, the unattended security system can be powered by a municipal power supply access mode. However, municipal power supply is easy to bring more restrictions to deployment of an unattended security system, and an area without power supply cannot use the unattended security system. Thus, in another preferred embodiment, the unattended security system further comprises a battery 6, the battery 6 being mounted within the housing 1, the battery 6 being used to power the vibration detection assembly, the acceleration sensor array 5, the acceleration signal processor and the controller 4. The circuit board 12 is provided with a power supply control circuit 11, a power supply is electrically connected with the input end of the power supply control circuit 11 through a wire, and the output end of the power supply control circuit 11 is directly or indirectly electrically connected with other power utilization parts. By adopting the mode of arranging the battery in the shell, the unattended security system can be self-powered, and the unattended security system is favorable for deployment and use in more scenes. Meanwhile, the acceleration sensor array is in a non-operation state in a normal state (when no vibration trigger signal exists), so that the unattended security system can operate in a lower power consumption mode; and the acceleration sensor array starts to operate and outputs acceleration signals only after the controller receives the vibration trigger signals, so that the standby power consumption of the unattended security system can be reduced, and the long-term uninterrupted operation of the unattended security system under near-zero power consumption is realized.
It should be understood that the above embodiments are only for explaining the present utility model, the protection scope of the present utility model is not limited thereto, and any person skilled in the art should be able to modify, replace and combine the technical solution according to the present utility model and the inventive concept within the scope of the present utility model.
Claims (10)
1. An unattended security system, comprising:
the shell is internally provided with a part installation cavity;
a vibration detection assembly configured to detect ground vibrations generated by a vibration source;
an acceleration sensor array configured to detect ground wave vibrations and output a primary acceleration signal;
the acceleration signal processor is electrically connected with the acceleration sensor array, and is used for receiving the primary acceleration signal and processing the primary acceleration signal to output a secondary acceleration signal;
the controller is electrically connected with the vibration detection assembly and the acceleration signal processor; the controller starts the acceleration sensor array to operate after receiving a vibration trigger signal from the vibration detection assembly; the controller receives the secondary acceleration signal from the acceleration signal processor and outputs category information and/or position information of the vibration source;
at least one of the vibration detection assembly, the acceleration sensor array, the acceleration signal processor, and the controller is mounted within the part mounting cavity.
2. The unattended security system according to claim 1, wherein the vibration detection assembly comprises a vibration sensor and a threshold detector, the vibration sensor and the threshold detector are electrically connected, the threshold detector receives a preamble signal sent by the vibration sensor, and the vibration detection assembly outputs a vibration trigger signal when the preamble signal is greater than a set preamble signal threshold.
3. The unattended security system according to claim 1, wherein the acceleration sensor array comprises three acceleration sensors, the acceleration sensors being circumferentially equiangularly spaced on a horizontal plane.
4. The unattended security system according to claim 1, wherein the acceleration signal processor performs high gain amplification, common mode filtering and noise reduction processing on the primary acceleration signal to output a secondary acceleration signal.
5. The unattended security system according to claim 1, further comprising a display terminal electrically connected to the controller, the display terminal being configured to display category information and/or location information of the vibration source.
6. The unattended security system of claim 1 further comprising a battery mounted within the housing, the battery for powering the vibration detection assembly, the acceleration sensor array, the acceleration signal processor, and the controller.
7. The unattended security system according to claim 1, wherein the controller comprises an FPGA and an MCU integrated on a circuit board.
8. The unattended security system of claim 2 wherein the vibration sensor is mounted in a lower portion of the part-mounting cavity.
9. The unattended security system as claimed in claim 2, wherein the parts mounting cavity comprises an upper mounting cavity and a lower mounting cavity that are independently provided, the vibration sensor is mounted in the lower mounting cavity, and the acceleration signal processor is mounted in the upper mounting cavity.
10. The unattended security system according to claim 1, wherein a pointed cone is vertically fixed to a lower portion of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223420787.6U CN219202456U (en) | 2022-12-15 | 2022-12-15 | Unmanned on duty security protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223420787.6U CN219202456U (en) | 2022-12-15 | 2022-12-15 | Unmanned on duty security protection system |
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| Publication Number | Publication Date |
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| CN219202456U true CN219202456U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223420787.6U Active CN219202456U (en) | 2022-12-15 | 2022-12-15 | Unmanned on duty security protection system |
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| CN (1) | CN219202456U (en) |
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- 2022-12-15 CN CN202223420787.6U patent/CN219202456U/en active Active
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