CN116798174A - Intelligent anti-theft device of building and system thereof - Google Patents
Intelligent anti-theft device of building and system thereof Download PDFInfo
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Abstract
The invention discloses an intelligent anti-theft device for a building and a system thereof, and relates to the technical field of intelligent anti-theft of the building. The anti-theft monitoring mode based on wireless signal intensity analysis is different from the existing infrared monitoring technology, cannot be found by an infrared filter, infrared perspective glasses or other perspective equipment, has low power consumption, can be separated from the mains supply arrangement, and avoids the failure risk of an alarm device caused by the fact that an intruder damages a power distribution cabinet of a building.
Description
Technical Field
The invention relates to the technical field of intelligent anti-theft of buildings, in particular to an intelligent anti-theft device of a building and a system thereof.
Background
With the increasing demands of people on living environments, the anti-theft alarm system plays an increasingly important role as a key ring in modern intelligent building design.
In order to accurately and rapidly monitor and alarm the theft of a building, an anti-theft alarm system is generally adopted in the prior art, wherein the anti-theft alarm system refers to a device for giving an alarm when illegal invades a prevention zone and is used for sending out a dangerous condition signal. The anti-theft alarm system uses the detector to make the protection for the important places and areas inside and outside the building. The system can timely detect illegal invasion and timely warn related personnel when illegal invasion is detected. Such as a door magnetic switch, a glass breaking alarm and the like, can effectively detect external invasion, and an infrared detector can sense the activities of personnel in a building and the like. Once the invasion action occurs, the time and place of invasion can be recorded in time, and an alarm signal is sent out through alarm equipment.
At present, the monitoring of an intruded mobile object mainly depends on an infrared monitoring technology, and Chinese patent publication No. CN104680695A discloses an invisible burglary-resisting window and a control method thereof, and the invisible burglary-resisting window comprises a window frame, glass and an burglary-resisting module, wherein the burglary-resisting module comprises a transmitting device and a receiving device which are arranged at the edge of the window frame in pairs, the burglary-resisting module further comprises a controller and an infrared sensor, the receiving device is connected with the controller, the controller is connected with the infrared sensor, the infrared sensor is arranged in the window, and the controller delays starting of the infrared sensor when receiving a signal detected by the receiving module. The invention combines the transmitting and receiving device and the infrared sensor, more accurately judges whether the foreign matters appearing outside the window are people or flying birds and the like, detects whether the foreign matters outside the window close to the window are unintentional or collusion, and solves the problem that the false alarm is easy to occur in the prior art when a homeowner is in a room due to the fact that the infrared sensor is started in a delayed manner after detection.
The anti-theft device of the infrared monitoring technology has the defects that the transmitting and receiving installation positions are fixed, the power consumption is high after the anti-theft device is started, the anti-theft device cannot be separated from the mains supply for use, and the anti-theft device is easy to be easily found by a malicious intruder through an infrared optical filter or an infrared transparent glasses.
Disclosure of Invention
In order to solve the technical problem of the anti-theft alarm system, the invention provides an intelligent anti-theft device for a building and a system thereof. The following technical scheme is adopted:
the utility model provides an intelligent anti-theft device of building, includes invasion type monitoring module, monitoring signal processing subassembly and alarm module, invasion type monitoring module is realized based on a plurality of wireless network transmission modules, monitoring signal processing subassembly includes at least one wireless network receiving module and signal strength change analysis module based on the chip, wireless network receiving module forms one-to-one network with a plurality of wireless network transmission modules respectively, signal strength change analysis module analyzes wireless signal intensity that wireless network receiving module received, sets up the signal strength change feature library that accords with illegal invasion characteristic, if there is the wireless signal strength change result that signal strength change analysis module analyzed to accord with signal strength change feature library, then makes illegal invasion judgement to send alarm request to alarm module, alarm module carries out the alarm action.
By adopting the technical scheme, after the intelligent anti-theft device of the building is started, the design thought of the intrusion monitoring component is based on the signal change analysis of the wireless network receiving module and the received wireless network sending module, the signal strength change analysis module extracts a communication data packet, analyzes the data packet, quantifies the wireless network signal strength, obtains a signal strength analysis result based on time, analyzes the change characteristic of the signal strength, and sets a signal strength change characteristic library.
The anti-theft monitoring mode based on wireless signal intensity analysis is different from the existing infrared monitoring technology, cannot be found by an infrared filter, infrared perspective glasses or other perspective equipment, has low power consumption, can be separated from the mains supply, is powered by a battery, and avoids the failure risk of an alarm device caused by the fact that an intruder damages a power distribution cabinet of a building.
Optionally, the invasive monitoring component includes a plurality of wireless network send module, and a plurality of wireless network send module set up respectively at the surface, side or the top surface of waiting the protection position, wireless network send module includes mounting box, wireless network transmitter and power module, and the monitoring device is laid the hole to the surface, side or the top surface of waiting the protection position, the mounting box sets up and lays hole department at monitoring device, and the outside sets up camouflage coating, wireless network transmitter and power module set up in the inboard of mounting box to be located monitoring device and lay downthehole, power module is wireless network transmitter power supply, wireless network transmitter is continuous to wireless network receiving module transmission standard wireless data through the mounting box.
Optionally, a plurality of honeycomb holes are formed in the top of the mounting box, waterproof plugs are arranged in the honeycomb holes, and camouflage coatings consistent with the surrounding surfaces are arranged on the outer surfaces of the mounting box after the waterproof plugs are assembled.
Optionally, the mounting box is a cylinder made of hard plastic, the diameter of the cylinder is smaller than 50mm, the waterproof plug is a miniature waterproof plug made of plastic, the diameter is smaller than 3mm, and the thickness is smaller than 2mm.
Through adopting above-mentioned technical scheme, invasive monitoring subassembly is installed based on an installation box, can install in a flexible way according to the protection demand like this and arrange, concrete installation box is cylindric, its each inner wall all can be used for installing wireless network transmission module, power module can be miniature lithium cell or button cell etc. after arranging, the surface sets up camouflage coating, make it keep unanimous with surrounding surface, avoid being found by illegal invader, the drum diameter is less than 50mm can reduce invasive monitoring subassembly's volume as far as possible, and can reduce the thickness of installation box roof as far as possible on the basis of satisfying intensity, in order to guarantee the signal intensity that wireless network transmitter sent, set up a plurality of honeycomb holes that run through at the top of installation box, the diameter of these honeycomb holes is less than 3mm, and set up waterproof plug, and waterproof plug's thickness is less than 2mm, and the material is hard plastics, can wireless network transmission module's radio signal receives less influenced.
Optionally, the wireless network transmitter is a Zigbee transmitting module, the wireless network receiving module is a Zigbee receiving module, and after the wireless network transmitting module is installed, a transmitting antenna of the wireless network transmitter faces a receiving antenna of the wireless network receiving module.
Through adopting above-mentioned technical scheme, zigbee transmitting module is wireless network transmitter's preference, because Zigbee transmitting module has with low costs, the consumption is little, advantage small, can stabilize continuous operation even for several years under the power supply of battery, greatly reduced subsequent maintenance work load, moreover because small, can realize the multiple spot and arrange, realize treating the cover formula of monitoring position and lay, avoid the protection leak, be different from wireless 5G module, wireless WIFI module and bluetooth module, zigbee transmitting module is obvious by the signal strength variation after shielding, this normally seems to belong to the shortcoming of Zigbee transmitting module, but on the building invasion is used, but increased its sensitivity of monitoring instead.
Optionally, the signal strength variation analysis module includes a chip for strength analysis, a buffer and a memory, where the chip is in communication connection with the data output port of the wireless network receiving module, and the buffer and the memory are respectively in communication connection with the chip.
By adopting the technical scheme, the change analysis of the signal intensity is mainly realized based on the chip, the chip can analyze the signal intensity through the data packet received by the wireless network receiving module, the data packet is temporarily stored in the buffer first, and the analyzed data packet and the analysis result are stored in the memory for later examination.
Optionally, the chip receives a standard wireless data packet transmitted by the wireless network receiving module every 0.5 seconds, analyzes the standard wireless data packet to obtain an RSSI value of the wireless network transmitter, analyzes and compares signal strengths of the wireless network transmitters in two adjacent 0.5 seconds based on the RSSI value, stores a signal strength change feature library in the memory, wherein the signal strength change feature of the signal strength change feature library accords with an illegal intrusion feature, the illegal intrusion feature comprises a first change feature, a second change feature and a third change feature, the difference value of the signal strengths of any two adjacent 0.5 seconds is larger than 30%, the change amplitude of the signal strength change in any 0.5 seconds is larger than 30%, and the third change feature is that continuous signal strength is weakened and the weakening amplitude is larger than 30%; if the chip judges that the signal intensity variation analysis result conforming to the illegal intrusion characteristics exists, the chip sends an alarm starting instruction to the alarm assembly.
By adopting the above technical solution, the chip receives the standard wireless data packet transmitted by the wireless network receiving module every 0.5 seconds, and analyzes the standard wireless data packet within the interval of 0.5 seconds, where the standard wireless data generally refers to a continuous cyclic number string, for example, 1,2, … …,100. Whatever the content is not important, it is important that the RSSI value can be resolved in the data packet received by the wireless network receiving module, and the signal strength value is obtained based on the RSSI value, and the specific principle is that:
the structure where the RSSI is located is aflncomingmsgacket_t, where there are two variables related to the communication quality. They are respectively: aflncompingmsgpacket_t— rssi and rssisafinocomina msgpacket_t > inkQuality, where rssi: received signal strength indicator is the received signal strength indication, representing the signal strength value. The data type is int8 type and is complementary, so the data needs to be converted into original code for display. The RSSI value is a value from negative to 0, in dBm so the actual signal strength value is: 0 xFFrsti (negative complement to original code), so that the signal strength can be quantitatively read after the RSSI value is obtained, and the signal change characteristics can be analyzed by combining time;
the first change feature, the second change feature and the third change feature are mainly corresponding signal change features based on different shielding and shielding disappearance conditions, for example, when an intruder moves above the intrusion monitoring component at a retarded speed, the features more conform to the first change feature, namely, the difference value of two adjacent 0.5 second signal intensities is more than 30%; when the invader jumps over the invader monitoring module, the characteristic of the device is more in accordance with the second change characteristic, namely the signal intensity change amplitude within any 0.5 seconds is more than 30%; when an intruder stays above the intrusion monitoring component, the characteristic is more consistent with the third variation characteristic, namely continuous signal strength weakening occurs, and the weakening amplitude is more than 30%.
Optionally, the alarm assembly comprises a singlechip and an audible and visual alarm, wherein the singlechip is in communication connection with the chip and controls the audible and visual alarm to execute actions.
Through adopting above-mentioned technical scheme, alarm component can adopt conventional alarm setting, and a singlechip receives alarm instruction signal to control audible and visual alarm and send audible and visual alarm, frighten the intruder.
The intelligent anti-theft system for building includes intelligent anti-theft devices, network alarm modules and monitoring platform, the intelligent anti-theft devices are set on the surface, side or top of the building to be protected, and the monitoring platform is connected with the signal strength change analysis module in communication for collecting monitoring data, storing and checking, displaying, and the SCM and the network alarm module control the execution of the network alarm module.
Through adopting above-mentioned technical scheme, design building intelligent anti-theft system based on building intelligent anti-theft device, avoid the intruder to discover the control through infrared light filter, infrared perspective glasses or other perspective equipment easily, building intelligent anti-theft device adopts the battery, break away from the mains supply and arrange, avoid the alarm device inefficacy risk that the intruder destroyed the switch board of building and lead to, supporting network alarm module and monitor platform again, network alarm module can realize automatic networking warning, monitor platform can show monitoring data at the distal end.
Optionally, the monitoring platform includes building video monitoring system, computer and well accuse display screen, building video monitoring system is used for monitoring the video picture of building wait to protect the position to with computer communication connection, computer and memory communication connection, gather signal strength change analysis module's control data, well accuse display screen and computer communication connection are used for showing control video and control data.
By adopting the technical scheme, the omnibearing monitoring of the building can be realized by being provided with the building video monitoring system.
In summary, the present invention includes at least one of the following beneficial technical effects:
the invention can provide the intelligent anti-theft device for the building and the system thereof, the design thought of the intrusion monitoring component is based on the obvious change of Zigbee wireless network signals after being blocked, the signal strength change analysis module extracts the communication data packet, analyzes the data packet, quantifies the wireless network signal strength, and then analyzes the change characteristics of the signal strength to obtain whether illegal intrusion occurs or not.
Drawings
FIG. 1 is a schematic diagram of the electrical connection principle of the intelligent anti-theft device and system for the same;
FIG. 2 is a schematic diagram of the electrical device connection principle of the sensor module and the data preprocessing module of the present invention;
fig. 3 is a schematic diagram of the connection principle of the electrical devices of the microcomputer host, the alarm and the false alarm monitoring and handling module of the present invention.
Reference numerals illustrate: 1. a wireless network transmitting module; 11. a mounting box; 111. honeycomb holes; 112. waterproof plugs; 12. a wireless network transmitter; 13. a power supply module; 14. camouflage coating; 21. a wireless network receiving module; 22. a signal strength variation analysis module; 221. a chip; 222. a buffer; 223. a memory; 100. an alarm assembly; 101. a single chip microcomputer; 102. an audible and visual alarm; 103. a network alarm module; 104. monitoring a platform; 105. a computer; 106. a central control display screen; 107. building video monitoring system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses an intelligent anti-theft device for a building and a system thereof.
Example 1
Referring to fig. 1-3, an intelligent anti-theft device for a building comprises an intrusion monitoring component, a monitoring signal processing component and an alarm component 100, wherein the intrusion monitoring component is realized based on a plurality of wireless network sending modules 1, the monitoring signal processing component comprises at least one wireless network receiving module 21 and a chip-based signal intensity variation analysis module 22, the wireless network receiving modules 21 and the plurality of wireless network sending modules 1 form a one-to-one networking respectively, the signal intensity variation analysis module 22 analyzes the wireless signal intensity received by the wireless network receiving modules 21, a signal intensity variation feature library conforming to illegal intrusion features is arranged, if a wireless signal intensity variation result analyzed by the signal intensity variation analysis module 22 conforms to the signal intensity variation feature library, illegal intrusion judgment is made, and an alarm request is sent to the alarm component 100, and the alarm component 100 executes an alarm action.
After the intelligent anti-theft device of the building is started, the design thought of the intrusion monitoring assembly is based on the analysis of the signal change of the wireless network receiving module 21 to the received wireless network transmitting module 1, the signal strength change analysis module 22 extracts a communication data packet, analyzes the data packet, quantifies the wireless network signal strength to obtain a signal strength analysis result based on time, analyzes the change characteristic of the signal strength, and sets a signal strength change characteristic library.
The anti-theft monitoring mode based on wireless signal intensity analysis is different from the existing infrared monitoring technology, cannot be found by an infrared filter, infrared perspective glasses or other perspective equipment, has low power consumption, can be separated from the mains supply, is powered by a battery, and avoids the failure risk of an alarm device caused by the fact that an intruder damages a power distribution cabinet of a building.
Example 2
Referring to fig. 1 to 3, the intrusion monitoring assembly includes a plurality of wireless network transmitting modules 1, the plurality of wireless network transmitting modules 1 are respectively arranged on the surface, the side or the top surface of a position to be protected, the wireless network transmitting modules 1 include a mounting box 11, a wireless network transmitter 12 and a power supply module 13, a monitoring device arrangement hole is formed in the surface, the side or the top surface of the position to be protected, the mounting box 11 is arranged at the monitoring device arrangement hole, a camouflage coating 14 is arranged on the outer side, the wireless network transmitter 12 and the power supply module 13 are arranged on the inner side of the mounting box 11 and are positioned in the monitoring device arrangement hole, the power supply module 13 supplies power to the wireless network transmitter 12, and the wireless network transmitter 12 continuously transmits standard wireless data to the wireless network receiving module 21 through the mounting box 11.
The top of the installation box 11 is provided with a plurality of through honeycomb holes 111, waterproof plugs 112 are arranged in the honeycomb holes 111, and camouflage coating 14 consistent with the surrounding surface is arranged on the outer surface of the installation box 11 after the waterproof plugs 112 are assembled.
The mounting box 11 is a cylinder made of hard plastic, the diameter of the cylinder is smaller than 50mm, the waterproof plug 112 is a miniature waterproof plug made of plastic, the diameter is smaller than 3mm, and the thickness is smaller than 2mm.
The top cover of the mounting box 11 is arranged in an openable mode, and can be a knob or a screw thread locking mode.
The intrusion type monitoring component is installed based on the installation box 11, the installation and arrangement can be flexibly carried out according to the protection requirement, the specific installation box 11 is cylindrical, each inner wall of the installation box 11 can be used for installing the wireless network transmission module 1, the power supply module 13 can be a small lithium battery or a button battery and the like, after the arrangement is completed, the camouflage coating 14 is arranged on the surface, the surface is consistent with the surrounding surface, illegal invaders are prevented from finding, the volume of the intrusion type monitoring component can be reduced as much as possible when the diameter of the cylinder is smaller than 50mm, the thickness of the top plate of the installation box 11 can be reduced as much as possible on the basis of meeting the strength, a plurality of through honeycomb holes 111 are formed in the top of the installation box 11, the diameter of the honeycomb holes is smaller than 3mm, the waterproof plugs 112 are arranged, the thickness of the waterproof plugs 112 is smaller than 2mm, and the material is hard plastic, so that the influence of wireless signals of the wireless network transmission module 1 can be guaranteed to be smaller.
Example 3
Referring to fig. 1 to 3, the wireless network transmitter 12 is a Zigbee transmitting module, the wireless network receiving module 21 is a Zigbee receiving module, and after the wireless network transmitting module 1 is mounted, the transmitting antenna of the wireless network transmitter 12 faces the receiving antenna of the wireless network receiving module 21.
The Zigbee transmitting module is a preferred wireless network transmitter 12, because the Zigbee transmitting module has the advantages of low cost, low power consumption and small volume, and can stably and continuously operate for several years even under the power supply of the battery, greatly reduces the subsequent maintenance workload, and because of the small volume, can realize multi-point arrangement, realize the coverage layout of the position to be monitored, avoid protection loopholes, and is different from the wireless 5G module, the wireless WIFI module and the bluetooth module, the signal intensity change of the Zigbee transmitting module after being shielded is obvious, and the Zigbee transmitting module normally appears to be a shortcoming of the Zigbee transmitting module, but in the application of building intrusion, the sensitivity of the monitoring is increased.
Example 4
Referring to fig. 1 to 3, the signal strength variation analysis module 22 includes a chip 221 for strength analysis, a buffer 222, and a memory 223, the chip 221 being communicatively connected to a data output port of the wireless network receiving module 21, the buffer 222 and the memory 223 being communicatively connected to the chip 221, respectively.
The analysis of the signal intensity is mainly implemented based on the chip 221, the chip 221 can analyze the signal intensity of the data packet received by the wireless network receiving module 21, temporarily store the data packet in the buffer 222, and store the analyzed data packet and the analysis result in the memory 223 for later examination.
Example 5
Referring to fig. 1 to 3, the chip 221 receives standard wireless data packets transmitted by the wireless network receiving module 21 every 0.5 seconds, analyzes the standard wireless data packets based on the standard wireless data packets to obtain an RSSI value of the wireless network transmitter 12, analyzes and compares signal strengths of the wireless network transmitters 12 within two adjacent 0.5 seconds based on the RSSI value, stores a signal strength change feature library in the memory 223, wherein the signal strength change feature of the signal strength change feature library accords with an illegal intrusion feature, the illegal intrusion feature comprises a first change feature, a second change feature and a third change feature, the first change feature is that a difference value of signal strengths of any two adjacent 0.5 seconds is greater than 30%, the second change feature is that a signal strength change amplitude within any 0.5 seconds is greater than 30%, and the third change feature is that continuous signal strength is weakened and the weakening amplitude is greater than 30%; if the chip 221 determines that the signal strength variation analysis result conforming to the illegal intrusion feature exists, the chip 221 sends an alarm starting instruction to the alarm assembly 100.
The chip 221 receives the standard wireless data packet transmitted by the wireless network receiving module 21 every 0.5 seconds, and parses the standard wireless data packet at the interval of 0.5 seconds, where the standard wireless data refers to a continuous cyclic number string, for example, 1,2, … …,100. Whatever the content is not important, it is important that the RSSI value can be resolved from the data packet received by the wireless network receiving module 21, and the signal strength value is based on the RSSI value, and the specific principle is that:
the structure where the RSSI is located is aflncomingmsgacket_t, where there are two variables related to the communication quality. They are respectively: aflncompingmsgpacket_t— rssi and rssisafinocomina msgpacket_t > inkQuality, where rssi: received signal strength indicator is the received signal strength indication, representing the signal strength value. The data type is int8 type and is complementary, so the data needs to be converted into original code for display. The RSSI value is a value from negative to 0, in dBm so the actual signal strength value is: 0 xFFrsti (negative complement to original code), so that the signal strength can be quantitatively read after the RSSI value is obtained, and the signal change characteristics can be analyzed by combining time;
the first change feature, the second change feature and the third change feature are mainly corresponding signal change features based on different shielding and shielding disappearance conditions, for example, when an intruder moves above the intrusion monitoring component at a retarded speed, the features more conform to the first change feature, namely, the difference value of two adjacent 0.5 second signal intensities is more than 30%; when the invader jumps over the invader monitoring module, the characteristic of the device is more in accordance with the second change characteristic, namely the signal intensity change amplitude within any 0.5 seconds is more than 30%; when an intruder stays above the intrusion monitoring component, the characteristic is more consistent with the third variation characteristic, namely continuous signal strength weakening occurs, and the weakening amplitude is more than 30%.
Example 6
Referring to fig. 1-3, the alarm assembly 100 includes a single-chip microcomputer 101 and an audible and visual alarm 102, where the single-chip microcomputer 101 is communicatively connected to a chip 221 and controls the audible and visual alarm 102 to perform actions.
The alarm assembly 100 can adopt a conventional alarm arrangement, and a single chip microcomputer 101 receives alarm instruction signals and controls an audible and visual alarm 102 to give out audible and visual alarm so as to deter an intruder.
Example 7
Referring to fig. 1-3, a building intelligent anti-theft system comprises a plurality of building intelligent anti-theft devices, a network alarm module 103 and a monitoring platform 104, wherein the plurality of building intelligent anti-theft devices are respectively arranged on the surface, the side surface or the top surface of a building to be protected, the monitoring device is arranged at a hole, the monitoring platform 104 is in communication connection with a signal intensity change analysis module 22 and is used for collecting monitoring data, storing and checking and displaying, and a singlechip 101 and the network alarm module 103 control the execution action of the network alarm module 103.
Based on intelligent anti-theft device of building designs intelligent anti-theft system of building, avoid the intruder to discover the control through infrared light filter, infrared perspective glasses or other perspective equipment easily, intelligent anti-theft device of building adopts the battery, breaks away from the commercial power and arranges, avoid the alarm device inefficacy risk that the intruder destroyed the switch board of building and lead to, supporting network alarm module 103 and monitor platform 104 again, network alarm module 103 can realize automatic networking warning, monitor platform 104 can show monitoring data in the distal end.
Example 8
Referring to fig. 1-3, the monitoring platform 104 includes a building video monitoring system 107, a computer 105 and a central control display screen 106, where the building video monitoring system 107 is used for monitoring video pictures of a building to-be-protected location, and is in communication connection with the computer 105, the computer 105 is in communication connection with the memory 223, and collects monitoring data of the signal strength variation analysis module 22, and the central control display screen 106 is in communication connection with the computer 105 and is used for displaying monitoring video and monitoring data.
The building video monitoring system 107 is further equipped to realize the omnibearing monitoring of the building.
The above embodiments are not intended to limit the scope of the present invention, and therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. An intelligent anti-theft device of building, its characterized in that: the wireless network monitoring system comprises an intrusion monitoring component, a monitoring signal processing component and an alarm component (100), wherein the intrusion monitoring component is realized based on a plurality of wireless network sending modules (1), the monitoring signal processing component comprises at least one wireless network receiving module (21) and a chip-based signal intensity variation analysis module (22), the wireless network receiving module (21) and the plurality of wireless network sending modules (1) form a one-to-one networking respectively, the signal intensity variation analysis module (22) analyzes the wireless signal intensity received by the wireless network receiving module (21), a signal intensity variation feature library which accords with illegal intrusion features is arranged, if a wireless signal intensity variation result analyzed by the signal intensity variation analysis module (22) accords with the signal intensity variation feature library, illegal intrusion judgment is made, an alarm request is sent to the alarm component (100), and the alarm component (100) executes an alarm action.
2. The intelligent anti-theft device for buildings according to claim 1, wherein: the intrusion type monitoring assembly comprises a plurality of wireless network sending modules (1), wherein the plurality of wireless network sending modules (1) are respectively arranged on the surface, the side surface or the top surface of a position to be protected, the wireless network sending modules (1) comprise mounting boxes (11), wireless network senders (12) and power supply modules (13), monitoring device arrangement holes are formed in the surface, the side surface or the top surface of the position to be protected, the mounting boxes (11) are arranged at the positions of the monitoring device arrangement holes, camouflage coatings (14) are arranged on the outer sides of the mounting boxes, the wireless network senders (12) and the power supply modules (13) are arranged on the inner sides of the mounting boxes (11) and are positioned in the monitoring device arrangement holes, the power supply modules (13) supply power for the wireless network senders (12), and the wireless network senders (12) continuously send standard wireless data to the wireless network receiving modules (21) through the mounting boxes (11).
3. The intelligent anti-theft device for buildings according to claim 2, wherein: the top of installation box (11) sets up a plurality of honeycomb holes (111) that run through, set up waterproof end cap (112) in honeycomb hole (111), waterproof end cap (112) set up camouflage coating (14) unanimous at installation box (11) surface and surrounding surface after the assembly.
4. A building intelligent anti-theft device according to claim 3, wherein: the mounting box (11) is a cylinder made of hard plastic, the diameter of the cylinder is smaller than 50mm, the waterproof plug (112) is a miniature waterproof plug made of plastic, the diameter is smaller than 3mm, and the thickness is smaller than 2mm.
5. The intelligent anti-theft device for buildings according to claim 4, wherein: the wireless network transmitter (12) is a Zigbee transmitting module, the wireless network receiving module (21) is a Zigbee receiving module, and after the wireless network transmitting module (1) is installed, a transmitting antenna of the wireless network transmitter (12) faces a receiving antenna of the wireless network receiving module (21).
6. The intelligent anti-theft device for buildings according to claim 4, wherein: the signal strength change analysis module (22) comprises a chip (221) for strength analysis, a buffer (222) and a memory (223), wherein the chip (221) is in communication connection with a data output port of the wireless network receiving module (21), and the buffer (222) and the memory (223) are respectively in communication connection with the chip (221).
7. The intelligent anti-theft device for buildings according to claim 6, wherein: the chip (221) receives standard wireless data packets transmitted by the wireless network receiving module (21) every 0.5 seconds, analyzes the standard wireless data packets based on the standard wireless data packets to obtain RSSI values of the wireless network transmitters (12), analyzes and compares signal strengths of the wireless network transmitters (12) in two adjacent 0.5 seconds based on the RSSI values, stores a signal strength change feature library in the memory (223), the signal strength change feature of the signal strength change feature library accords with illegal invasion features, the illegal invasion features comprise a first change feature, a second change feature and a third change feature, the difference value of the signal strengths of any two adjacent 0.5 seconds is larger than 30%, the second change feature is that the signal strength change amplitude in any 0.5 seconds is larger than 30%, and the third change feature is that continuous signal strength is weakened and the weakening amplitude is larger than 30%; if the chip (221) judges that the signal intensity variation analysis result conforming to the illegal intrusion characteristics exists, the chip (221) sends an alarm starting instruction to the alarm assembly (100).
8. The intelligent anti-theft device for construction according to claim 7, wherein: the alarm assembly (100) comprises a single chip microcomputer (101) and an audible and visual alarm (102), wherein the single chip microcomputer (101) is in communication connection with the chip (221) and controls the audible and visual alarm (102) to execute actions.
9. An intelligent anti-theft system for a building, which is characterized in that: the intelligent anti-theft device comprises a plurality of intelligent anti-theft devices for buildings, a network alarm module (103) and a monitoring platform (104), wherein the intelligent anti-theft devices for buildings are respectively arranged on the surface, the side surface or the top surface of a position to be protected of the building, the monitoring platform (104) is in communication connection with a signal intensity change analysis module (22) and is used for collecting monitoring data, storing and checking and displaying, and a singlechip (101) and the network alarm module (103) control the execution action of the network alarm module (103).
10. The intelligent anti-theft system for buildings according to claim 9, wherein: the monitoring platform (104) comprises a building video monitoring system (107), a computer (105) and a central control display screen (106), wherein the building video monitoring system (107) is used for monitoring video pictures of a building to-be-protected position and is in communication connection with the computer (105), the computer (105) is in communication connection with a memory (223) and is used for collecting monitoring data of the signal intensity change analysis module (22), and the central control display screen (106) is in communication connection with the computer (105) and is used for displaying monitoring videos and monitoring data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101436336A (en) * | 2007-11-15 | 2009-05-20 | 中国科学院自动化研究所 | Intrusion detection system and method |
| CN104835277A (en) * | 2015-05-25 | 2015-08-12 | 重庆邮电大学 | Invasion detection mechanism based on RSSI under enclosing environment |
| CN105405260A (en) * | 2015-12-15 | 2016-03-16 | 刘向阳 | Antitheft system and antitheft method based on wireless signals |
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- 2023-08-22 CN CN202311054249.6A patent/CN116798174A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436336A (en) * | 2007-11-15 | 2009-05-20 | 中国科学院自动化研究所 | Intrusion detection system and method |
| CN104835277A (en) * | 2015-05-25 | 2015-08-12 | 重庆邮电大学 | Invasion detection mechanism based on RSSI under enclosing environment |
| CN105405260A (en) * | 2015-12-15 | 2016-03-16 | 刘向阳 | Antitheft system and antitheft method based on wireless signals |
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