CN111060978A - Large-area rapid detection composite node detection system and detection method - Google Patents
Large-area rapid detection composite node detection system and detection method Download PDFInfo
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Abstract
A large-area rapid detection composite node detection system is characterized in that: the system comprises a detection host, a detection processing unit and a display unit, wherein the detection host generates and transmits a high-frequency 2.4G microwave signal, receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal; the array type mechanical device is provided with a plurality of detection hosts; and the control unit supplies power and controls each detection host. A large-area rapid detection composite node detection method. Compared with the prior art, the invention has the advantages that the structure is improved, so that the semiconductor component and the metal rotting node can be rapidly and synchronously detected on a very wide cross section along the transverse direction, the detection of the large-area semiconductor component and the metal rotting node can be rapidly completed, and the system and the method can be applied to the fields of large-area explosion sites, military investigation, anti-terrorism and anti-riot, prison prohibited article search, criminal investigation and technical investigation, search and rescue, tracking search and the like, and are more practical.
Description
Technical Field
The present invention relates to a detection apparatus and a detection method for semiconductor devices and metal decay nodes, and more particularly to a large-area rapid detection composite node detection system and a detection method for rapidly detecting semiconductor devices and metal decay nodes in a large area.
Background
Nowadays, the society, high-tech crime are more and more, have appeared multiple type of explosive, and its spare part is difficult to discern the investigation after the explosion, if can not find out in time, can cause huge harmful effects to people, produce long-time injury to people's spirit, cause public panic.
In the exploration field, the situation that the investigation range is not only wide, but also large in area is met, because the detection personnel must quickly find the direct and effective remnants of the explosive device, so that clear directions and clues are provided for investigation, and key evidence is provided for case trial and judgment. However, the explosion case site is usually a wolf, the flying distance of the explosion remnants is far, if weeds, bushes and the like are sheltered, and the remnants are difficult to be found when the users encounter rain, pedestrians and the like, and the common detection device is difficult to realize large-area and high-efficiency rapid detection and identification.
Disclosure of Invention
An object of the present invention is to provide a large-area rapid probing composite type node probing system, which can rapidly complete the probing of large-area semiconductor devices and metal decay nodes. The technical scheme is as follows:
a large-area rapid detection composite node detection system is characterized in that: comprises that
The detection host generates and transmits a high-frequency 2.4G microwave signal, receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal;
the array type mechanical device is provided with a plurality of detection hosts;
and the control unit supplies power and controls each detection host.
Preferably, the probing host comprises
A transmitting unit generating and transmitting a high frequency 2.4G microwave signal;
and the receiving unit receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal.
The transmitting unit comprises a phase-locked loop, a filter, an amplifier, an attenuator, a primary power amplifier, a final power amplifier, an isolator and a transmitting antenna, wherein the phase-locked loop generates an oscillating signal, the oscillating signal is sequentially filtered by the filter, enters the amplifier for amplification, enters the bandwidth attenuator for filtering, enters the power amplifier for filtering, enters the final amplifier for signal isolation and output, enters the post filter for filtering, and finally transmits a 2.4G carrier signal to a space through the transmitting antenna.
According to a more preferable scheme, the receiving unit comprises a receiving antenna, a high-pass filter, a low-noise amplifier, a power divider, 12/3 harmonic band-pass filter, a mixer, a band-pass filter, an amplifier, a band-pass filter, a primary detection, a final detection and a numerical control module, wherein the antenna receives signals for 2 times and 3 times, frequency points of the signals are 4.8G and 7.2G, the received signals firstly enter the high-pass filter, then enter the low-noise amplifier for amplification, and then enter the power divider for dividing the signals into the signals for 2 times and the signals for 3 times; the 2-time signal firstly enters a 2-time harmonic band-pass filter for filtering, then enters a first mixer for mixing, then enters a first band-pass filter for filtering out signals except for 4.8G and 7.2G, then enters a first amplifier for amplification, then enters a second band-pass filter for filtering, then enters a first primary detector for detection, then enters a first final detector for detection, and finally enters a first digital control module for prompting the 2-time detection signal; the 3-time signal enters a 3-time harmonic band-pass filter for filtering, then enters a second mixer for mixing, then enters a third band-pass filter for filtering signals except 4.8G and 7.2G, then enters a second amplifier for amplification, then enters a fourth band-pass filter for filtering, then enters a second primary detector for detection, then enters a second final detector for detection, and finally enters a second digital control module for prompting the 3-time detection signal.
In a preferred embodiment, the control unit includes a power supply and a control module, the power supply supplies power to the entire system, and the control module controls each of the detecting hosts.
In a more preferred scheme, the control comprises switching on and off, volume, signal switching and power regulation.
According to a preferred scheme, the array type mechanical device comprises a plurality of connecting rods and two portable handrails, the connecting rods are sequentially connected end to end through electric connectors to form a connecting rod, the two portable handrails are respectively connected to the two ends of the connecting rod, the detection hosts are respectively hung on the connecting rod through locking buckles, and the control unit is installed on one portable handrail. Each detection host is 0.5m wide in detection radiation area, and the array detection of 1.5m wide can be realized by normally arranging 3 detection hosts in an array manner.
Another objective of the present application is to provide a method for rapidly identifying a probe with a high identification rate, which specifically comprises the following steps:
a large-area rapid detection composite node detection method is characterized in that: comprises the following steps;
s0, assembling the system by reasonably distributing the installation number of the detection hosts 1 according to the detection area;
s1, starting up and debugging, namely adjusting the sensitivity, the transmitting power, the system volume and the length of the 2-3 hand-held handrail of each detection host 1 respectively;
s2: simulating the test of the tested object, and using the equipped simulated semiconductor components and metal decay nodes to move from far to near the front of each detection host until a detection signal gives an alarm;
s3: starting detection, wherein two persons respectively hold two hand-held handrails and move the device forward at the speed of 0.6m/s per second to detect the field;
s4: detecting object identification, such as detecting effective signals by the device, comparing the intensity of the signals for 2 times and the intensity of the signals for 3 times, evaluating the ratio of the signals, and judging the detection attribute;
s5: confirming a detection target object, and observing whether the target object is the two objects (a semiconductor component and a metal decay node) by naked eyes;
s6: disassembling the system; the procedure is reversed in step S1.
Preferably, in step S4,
if the signal intensity of 2 times far exceeds the signal intensity of 3 times, the signal intensity of 3 times is very weak and only has 1-3 lattices or no signal intensity of 3 times, the semiconductor component is judged;
if the signal intensity of 3 times far exceeds that of 2 times, and the signal intensity of 2 times is very weak and has only 1-3 lattices or no signal intensity of 2 times, judging the node as a metal decay node;
if the signal is recovered immediately after 2 times or 3 times of transient change, the signal is judged to be a false alarm signal and is avoided by reducing the sensitivity.
Compared with the prior art, the invention has the advantages that the structure is improved, so that the semiconductor component and the metal rotting node can be rapidly and synchronously detected on a very wide cross section along the transverse direction, the detection of the large-area semiconductor component and the metal rotting node can be rapidly completed, and the system and the method can be applied to the fields of large-area explosion sites, military investigation, anti-terrorism and anti-riot, prison prohibited article search, criminal investigation and technical investigation, search and rescue, tracking search and the like, and are more practical.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic block diagram of the circuitry of the transmit unit of the preferred embodiment probe host shown in FIG. 1;
FIG. 3 is a schematic block diagram of the circuitry of the receiving unit of the preferred embodiment probing host shown in FIG. 1;
FIG. 4 is a top view of the preferred embodiment detection master shown in FIG. 1;
FIG. 5 is a front view of the preferred embodiment probe host shown in FIG. 1;
fig. 6 is a flowchart of the complex node probing method for large area fast probing in accordance with the preferred embodiment shown in fig. 1.
Detailed Description
As shown in FIGS. 1-5, the large area fast probing composite node probing system in the preferred embodiment comprises
The detection host 1 generates and transmits a high-frequency 2.4G microwave signal, receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal;
the array type mechanical device 2 is provided with a plurality of detection main machines 1;
and a control unit 3 for supplying power and controlling each of the detecting main machines 1.
The detection host 1 comprises
A transmitting unit generating and transmitting a high frequency 2.4G microwave signal;
and the receiving unit receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal.
The transmitting unit comprises a phase-locked loop, a filter, an amplifier, an attenuator, primary power amplification, final power amplification, an isolator and a transmitting antenna, wherein the phase-locked loop generates an oscillating signal, the oscillating signal is sequentially filtered by the filter, enters the amplifier for amplification, enters the bandwidth attenuator for filtering, enters the power amplification stage, enters the final amplifier, enters the isolator for signal isolation output, enters the post filter for filtering, and finally transmits a 2.4G carrier signal to a space through the transmitting antenna.
The receiving unit comprises a receiving antenna, a high-pass filter, a low-noise amplifier, a power divider, 2/3 subharmonic band-pass filter, a mixer, a band-pass filter, an amplifier, a band-pass filter, a primary detection, a final detection and a numerical control module, wherein the antenna receives signals for 2 times and 3 times, the frequency points of the signals are 4.8G and 7.2G, the received signals firstly enter the high-pass filter, then enter the low-noise amplifier for amplification, and then enter the power divider for dividing into the signals for 2 times and the signals for 3 times; the 2-time signal firstly enters a 2-time harmonic band-pass filter for filtering, then enters a first mixer for mixing, then enters a first band-pass filter for filtering out signals except for 4.8G and 7.2G, then enters a first amplifier for amplification, then enters a second band-pass filter for filtering, then enters a first primary detector for detection, then enters a first final detector for detection, and finally enters a first digital control module for prompting the 2-time detection signal; the 3-time signal enters a 3-time harmonic band-pass filter for filtering, then enters a second mixer for mixing, then enters a third band-pass filter for filtering signals except 4.8G and 7.2G, then enters a second amplifier for amplification, then enters a fourth band-pass filter for filtering, then enters a second primary detector for detection, then enters a second final detector for detection, and finally enters a second digital control module for prompting the 3-time detection signal.
The control unit 3 comprises a power supply and a control module, the power supply supplies power to the whole system, and the control module controls each detection host 1.
The control comprises startup and shutdown, volume, signal switching and power regulation.
The array type mechanical device 2 comprises a plurality of connecting rods 201 and two portable handrails 202, the connecting rods 201 are sequentially connected end to form a connecting rod through an electric connector 204, two portable handrails 202 are respectively connected to two ends of the connecting rod, each detection host 1 is respectively hung on the connecting rod through a locking buckle 203, and the control unit 3 is installed on one portable handrail 202. Each detection host 1 is 0.5m wide in detection radiation area, and the array detection of 1.5m wide can be realized by normally arranging 3 detection hosts 1 in an array manner.
As shown in fig. 6, the method for rapidly detecting a compound node in a large area used in the compound node detection system in a large area includes the following steps;
s0, assembling the system by reasonably distributing the installation number of the detection hosts 1 according to the detection area;
s1, starting up and debugging, namely adjusting the sensitivity, the transmitting power, the system volume and the length of the 2-3 hand-held handrail 202 of each detection host 1 respectively;
s2: simulating a test object, namely using the equipped simulated semiconductor components and metal decay nodes to move from far to near the front of each detection host 1 until a detection signal gives an alarm;
s3: starting detection, two persons respectively hold the two hand-held handrails 202 and move the device forward at the speed of 0.6m/s per second to detect the field;
s4: detecting object identification, such as detecting effective signals by the device, comparing the intensity of the 2-time signals with that of the 2-time signals, evaluating the ratio of the signals, and judging the detection attribute;
s5: confirming a detection target object, and observing whether the target object is the two objects (a semiconductor component and a metal decay node) by naked eyes;
s6: disassembling the system; the procedure is reversed in step S1.
In the step S4, in the above step,
if the signal intensity of 2 times far exceeds the signal intensity of 3 times, the signal intensity of 3 times is very weak and only has 1-3 lattices or no signal intensity of 3 times, the semiconductor component is judged;
if the signal intensity of 3 times far exceeds that of 2 times, and the signal intensity of 2 times is very weak and has only 1-3 lattices or no signal intensity of 2 times, judging the node as a metal decay node;
if the signal is recovered immediately after 2 times or 3 times of transient change, the signal is judged to be a false alarm signal and is avoided by reducing the sensitivity.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A large-area rapid detection composite node detection system is characterized in that: comprises that
The detection host generates and transmits a high-frequency 2.4G microwave signal, receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal;
the array type mechanical device is provided with a plurality of detection hosts;
and the control unit supplies power and controls each detection host.
2. The large area rapid probing composite node probing system as defined in claim 1 wherein: the detection host comprises
A transmitting unit generating and transmitting a high frequency 2.4G microwave signal;
and the receiving unit receives and processes the high-frequency 4.8G/7.2G microwave signal and displays the detection signal.
3. The large area rapid probing compound node probing system as claimed in claim 2 wherein: the transmitting unit comprises a phase-locked loop, a filter, an amplifier, an attenuator, primary power amplification, final power amplification, an isolator and a transmitting antenna, wherein the phase-locked loop generates an oscillating signal, the oscillating signal is sequentially filtered by the filter, enters the amplifier for amplification, enters the bandwidth attenuator for filtering, enters the power amplification stage, enters the final amplifier, enters the isolator for signal isolation output, enters the post filter for filtering, and finally transmits a 2.4G carrier signal to a space through the transmitting antenna.
4. The large area rapid probing compound node probing system as claimed in claim 2 wherein: the receiving unit comprises a receiving antenna, a high-pass filter, a low-noise amplifier, a power divider, 2/3 subharmonic band-pass filter, a mixer, a band-pass filter, an amplifier, a band-pass filter, a primary detection, a final detection and a numerical control module, wherein the antenna receives signals for 2 times and 3 times, the frequency points of the signals are 4.8G and 7.2G, the received signals firstly enter the high-pass filter, then enter the low-noise amplifier for amplification, and then enter the power divider for dividing into the signals for 2 times and the signals for 3 times; the 2-time signal firstly enters a 2-time harmonic band-pass filter for filtering, then enters a first mixer for mixing, then enters a first band-pass filter for filtering out signals except for 4.8G and 7.2G, then enters a first amplifier for amplification, then enters a second band-pass filter for filtering, then enters a first primary detector for detection, then enters a first final detector for detection, and finally enters a first digital control module for prompting the 2-time detection signal; the 3-time signal enters a 3-time harmonic band-pass filter for filtering, then enters a second mixer for mixing, then enters a third band-pass filter for filtering signals except 4.8G and 7.2G, then enters a second amplifier for amplification, then enters a fourth band-pass filter for filtering, then enters a second primary detector for detection, then enters a second final detector for detection, and finally enters a second digital control module for prompting the 3-time detection signal.
5. The large area rapid probing composite node probing system as defined in claim 1 wherein: the control unit comprises a power supply and a control module, the power supply supplies power to the whole system, and the control module controls each detection host.
6. The large area rapid probing composite node probing system as defined in claim 5 wherein: the control comprises startup and shutdown, volume, signal switching and power regulation.
7. The large area rapid probing composite node probing system as defined in claim 1 wherein: the array type mechanical device comprises a plurality of connecting rods and two portable handrails, wherein the connecting rods are sequentially connected end to end through an electric connector to form a connecting rod, two portable handrails are respectively connected to two ends of the connecting rod, each detection host is respectively hung on the connecting rod through a locking buckle, and a control unit is installed on one portable handrail.
8. A large-area rapid detection composite node detection method is characterized in that: comprises the following steps;
s0, assembling the system by reasonably distributing the installation number of the detection hosts according to the detection area;
s1, debugging, namely adjusting the sensitivity, the transmitting power, the system volume and the length of the 2-3 hand-held handrail of each detection host respectively;
s2: simulating the test of the tested object, and using the equipped simulated semiconductor components and metal decay nodes to move from far to near the front of each detection host until a detection signal gives an alarm;
s3: starting detection, wherein two persons respectively hold two hand-held handrails and move the device forward at the speed of 0.6m/s per second to detect the field;
s4: detecting object identification, such as detecting effective signals by the device, comparing the intensity of the 2-time signals with that of the 2-time signals, evaluating the ratio of the signals, and judging the detection attribute;
s5: confirming a detection target object, and observing whether the target object is a semiconductor component or a metal decay node or not by naked eyes;
s6: disassembling the system; the procedure is reversed in step S1.
9. The large-area rapid probing composite type node probing method according to claim 1, wherein: in the step S4, in the above step,
if the signal intensity of 2 times far exceeds the signal intensity of 3 times, the signal intensity of 3 times is very weak and only has 1-3 lattices or no signal intensity of 3 times, the semiconductor component is judged;
if the signal intensity of 3 times far exceeds that of 2 times, and the signal intensity of 2 times is very weak and has only 1-3 lattices or no signal intensity of 2 times, judging the node as a metal decay node;
if the signal is recovered immediately after 2 times or 3 times of transient change, the signal is judged to be a false alarm signal and is avoided by reducing the sensitivity.
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