Living body detection equipment

Abstract

The invention relates to living body detection equipment. The living body detection equipment comprises a vibration transmission device and a detection device which are arranged in sequence, the vibration conveying device comprises a rack, a vibration device, a lifting device and a first conveying device, the vibration device comprises a vibration block and a vibration generating device, the vibration block is arranged between the first conveying device and ascends or descends under the action of the lifting device, and the vibration generating device is used for driving the vibration block to vibrate. The detection device comprises a detection cover and a third conveying device, the detection cover is arranged above the third conveying device, and living body detection sensors are arranged on the two side walls of the detection cover in a staggered mode. The vibration device can stimulate a living body to move, and the risk of missing detection is reduced; the queuing device can stably convey parcels or luggage to the detection device in sequence; millimeter wave radars arranged in a staggered mode of the detection device can comprehensively scan articles, living bodies in various luggage packages are accurately locked, and the detection accuracy is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of living body detection equipment, and in particular to a living body detection equipment. Background Art

[0002] With international trade and personnel exchanges increasing, customs are tasked with safeguarding biosecurity at the nation's borders, preventing the invasion of harmful organisms, and regulating the entry and exit of prohibited items. Traditional customs inspection methods are increasingly exposed to the numerous limitations of illegal entry of living organisms.

[0003] On the one hand, in the past, manual unpacking inspections and empirical judgment were primarily relied upon. Customs officers handle a massive volume of inbound and outbound parcels, luggage, and cargo daily, a burdensome task. When faced with complex packaging and concealed concealment methods, relying solely on visual inspection and simple tools can easily miss carefully disguised live animals. For example, some criminals conceal small snakes in the hollows of toy models and insect eggs between the cracks of handicrafts. These are difficult to detect accurately in a short period of time by manual inspection, significantly increasing the risk of prohibited live animals slipping through customs unnoticed.

[0004] On the other hand, conventional security inspection equipment, such as basic X-ray machines, while able to produce a rough outline of an object, struggles to effectively distinguish between living and non-living entities. Their imaging has low recognition of the unique vital signs of living organisms, making it impossible to determine whether a suspected object in the image exhibits life-threatening signs such as breathing, heartbeat, and body temperature. This leads to numerous false positives and missed detections, significantly reducing inspection efficiency and opening the door to the influx of harmful living organisms.

[0005] Furthermore, with the burgeoning global underground trade in exotic pets, the illegal importation and mailing of exotic live animals into China is becoming increasingly prevalent. These unquarantined exotic pets, ranging from reptiles and arthropods to small mammals, can carry zoonotic pathogens. Certain imported wild rodents, for example, are susceptible to spreading plague, while imported reptiles can harbor deadly parasites. Once introduced, these animals could wreak havoc on my country's agriculture, forestry, and animal husbandry sectors, resulting in devastating crop yield losses, livestock disease, and mortality. They could also disrupt local ecosystems, threaten biodiversity, and even pose a direct threat to public health.

[0006] In summary, customs urgently needs a professional detection equipment that can accurately, efficiently and quickly identify living organisms entering and leaving the country, aiming to fill the shortcomings of existing inspection technology. Summary of the Invention

[0007] The purpose of the present invention is to provide a liveness detection device to solve the current problem of being unable to accurately, efficiently and quickly identify living organisms entering and leaving the country.

[0008] To achieve the above-mentioned purpose, the present invention discloses a liveness detection device, comprising: a vibrating conveying device and a detection device arranged in sequence. The vibrating conveying device comprises a frame, a vibrating device, a lifting device and a first conveying device. The vibrating device comprises a vibrating block and a vibration generating device. The vibrating block is arranged between the first conveying device. The vibrating block rises or falls under the action of the lifting device. The vibration generating device is used to drive the vibrating block to vibrate. The detection device comprises a detection cover and a third conveying device. The detection cover is arranged above the third conveying device. Liveness detection sensors are staggeredly arranged on both side walls of the detection cover. The transmitting port and the receiving port of the liveness detection sensor are tilted toward the third conveying device. The luggage or parcel passes through the first conveying device, the second conveying device and the third conveying device in sequence.

[0009] Preferably, the vibration block is mounted on the top of the vibration base plate, and the vibration generating device is mounted on the bottom of the vibration base plate. A first shock absorbing device is further provided between the lifting device and the vibration device. The first shock absorbing device comprises, from top to bottom, a box body, a push plate, and first shock absorbing pads. The first shock absorbing pads are arranged in a rectangular array between the box body and the push plate. The box body cover is provided outside the vibration generating device. The box body is fixedly connected to the vibration base plate; the push plate is fixedly connected to the lifting device.

[0010] Preferably, a second shock-absorbing device is provided below the first shock-absorbing device. The second shock-absorbing device comprises, arranged in descending order from top to bottom, a fixed plate, a second shock-absorbing foot pad, and a mounting bracket. The second shock-absorbing foot pad is arranged in a rectangular array between the fixed plate and the mounting bracket, and the mounting bracket is fixedly mounted on the frame. The mounting bracket is in the shape of a U-shaped U-shaped frame, and the lifting device passes through the mounting bracket and is fixedly mounted on the bottom of the fixed plate.

[0011] Preferably, a plurality of guide seats are mounted on the fixed plate, and the guide seats are in a rectangular array. A plurality of guide rods are fixedly mounted on the bottom of the box body, and the guide rods pass through the guide seats and cooperate with the guide seats.

[0012] Preferably, the first conveying device comprises a plurality of rollers, which are installed at intervals on the top of the frame, and the vibration block is arranged between adjacent rollers.

[0013] Preferably, a first sealing plate is provided under the roller, the first sealing plate is fixed on the frame, the first sealing plate is recessed downward corresponding to the position of the vibration base plate to form a cavity, and a through groove for the box body to pass through is provided at the bottom of the cavity; a shock-absorbing pad is fixedly installed at the bottom of the cavity.

[0014] Preferably, the vibration generating device is a vibration motor.

[0015] Preferably, the detection cover is in a U-shape, and mounting grooves are provided on both side walls of the detection cover. The two mounting grooves are staggered, and the upper side walls of the mounting grooves are inclined. The liveness detection sensor is installed on the upper side walls of the mounting grooves.

[0016] Preferably, the angle between the upper side wall of the installation groove and the vertical plane is 30-70°, and the cross-section of the installation groove is V-shaped.

[0017] Preferably, the third conveying device is a conveyor belt, and the detection sensor is installed 20-60 cm above the conveyor belt.

[0018] Preferably, the living body detection sensor is a millimeter wave radar, a camera is provided on the top of the detection cover, an audible and visual alarm is provided on the detection cover, and a display is provided on the outside of the detection cover.

[0019] Preferably, shielding curtains are provided at the inlet and outlet of the detection cover, and the outer shell of the detection cover is made of metal shielding material.

[0020] Preferably, it includes a queuing device, which is arranged between the vibration conveying device and the detection device. The queuing device includes a second conveying device, which is a conveyor belt. The second conveying device and the third conveying device are driven by a servo motor.

[0021] The present invention has the following beneficial effects: 1. The vibration device in the present invention can stimulate living organisms and reduce the risk of missed detection. The queuing device can stably and sequentially deliver packages or luggage to the detection device. The staggered millimeter-wave radars in the detection device comprehensively scan items and accurately lock onto living organisms in various types of luggage and parcels, significantly improving detection accuracy.

[0022] 2. The setting of double shock-absorbing devices can buffer most of the impact force transmitted by the vibration generating device, protect the lifting device, and prevent fatigue damage to the frame and other connected components due to long-term vibration, thereby extending the service life of the entire equipment.

[0023] 3. The staggered and tilted millimeter-wave radar can ensure cross-detection of multiple sides of the luggage and even parts of the top and bottom, effectively reducing detection blind spots and greatly improving the comprehensiveness of liveness detection.

[0024] 4. The camera can capture real-time images of luggage on the conveyor belt, complementing the radar detection data to facilitate the rapid location of abnormal packages or luggage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure provided in a specific embodiment of the present invention; Figure 2 This is an overall schematic diagram of a vibration transmission device provided in a specific embodiment of the present invention; Figure 3 This is a schematic diagram of a vibration transmission device provided in a specific embodiment of the present invention with some structures hidden; Figure 4 This is a schematic diagram of a vibration transmission device provided in a specific embodiment of the present invention with some structures hidden; Figure 5 It is a cross-sectional schematic diagram of a vibration transmission device provided in a specific embodiment of the present invention; Figure 6 It is a partial schematic diagram of a vibration transmission device provided in a specific embodiment of the present invention; Figure 7 It is an overall schematic diagram of a detection device provided in a specific embodiment of the present invention; Figure 8 It is a cross-sectional schematic diagram of a detection device provided in a specific embodiment of the present invention.

[0026] Description of main components symbols: 100, frame; 110, roller; 120, first closing plate; 121, cavity; 1211, shock-absorbing pad; 200, mounting frame; 201, second shock-absorbing foot pad; 210, fixing plate; 211, guide seat; 300, vibration base plate; 310, vibration block; 320, vibration generating device; 330, box body; 331, guide rod; 400, lifting device; 410, push plate; 411, first shock-absorbing foot pad; 500, second conveying device; 600, third conveying device; 700, detection cover; 710, mounting slot; 711, liveness detection sensor. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1 to 8 As shown, the present invention discloses a liveness detection device comprising: a vibrating conveyor device, a queuing device, and a detection device, arranged in sequence. Luggage or parcels pass through a first conveyor device, a second conveyor device 500, and a third conveyor device 600. The luggage or parcels pass through the third conveyor device 600 and enter the detection cover 700 of the detection device. The millimeter-wave radar within the detection cover 700 scans the luggage or parcels to detect the presence of small animals.

[0029] The vibrating conveyor includes a frame 100, a vibrating device, a lifting device 400, and a first conveying device. The vibrating device includes a vibrating block 310 and a vibration generating device 320. The first conveying device includes a plurality of rollers 110, which are installed at intervals on the top of the frame 100. The vibrating blocks 310 are arranged between the first conveying devices, that is, the vibrating blocks 310 are arranged between adjacent rollers 110.

[0030] The vibrating conveyor has a unique vibration function. During operation, the vibrations it generates act on the luggage or parcel. If a live animal is hidden inside, this vibration can effectively stimulate the animal, causing it to move or make noticeable movements within the package. This allows the sensor to more accurately capture these signal changes caused by the live animal's movement during the subsequent liveness detection process, greatly improving the reliability and accuracy of the liveness detection results and providing strong support for the entire detection process.

[0031] Vibration block 310 is mounted on the top of vibration base plate 300, and vibration generator 320 is mounted on the bottom of vibration base plate 300. Vibration block 310 rises or falls under the action of lifting device 400, and vibration generator 320 is used to drive vibration block 310 to vibrate. In this embodiment, vibration generator 320 is a vibration motor.

[0032] A first shock-absorbing device is also provided between the lifting device 400 and the vibration device. This device comprises, from top to bottom, a housing 330, a push plate 410, and first shock-absorbing pads 411. The first shock-absorbing pads 411 are rubber and arranged in a rectangular array between the housing 330 and the push plate 410. The housing 330 covers the vibration generating device 320 and is fixedly connected to the vibration base plate 300. The push plate 410 is fixedly connected to the lifting device 400. In this embodiment, the lifting device 400 is an electric telescopic cylinder. In other embodiments, the lifting device 400 may be a pneumatic cylinder, a hydraulic cylinder, or the like.

[0033] In this embodiment, if the intense vibrations generated by the vibration generator 320 during operation are directly transmitted to the lifting mechanism 400, they would subject its internal precision components (such as the screw, guide rails, motor, and, in the case of a hydraulic lifting mechanism 400, the hydraulic cylinder and seals, etc.) to high-frequency shock. Over time, these components are susceptible to wear and deformation, leading to reduced lifting accuracy or even failure. The first shock-absorbing pads 411 in the first shock-absorbing mechanism, arranged in a rectangular array between the housing 330 and the push plate 410, effectively buffer vibration energy and absorb most of the impact force, significantly reducing vibration damage to the lifting mechanism 400, extending its service life, ensuring the reliability and stability of the lifting action, and thus guaranteeing the continuity of the entire vibration transmission process. The housing 330 is positioned externally to the vibration generator 320 and fixedly connected to the vibration base plate 300. This not only provides physical protection for the vibration generator 320, preventing foreign matter from intruding and affecting its operation, but also further enhances the structural integration of the vibration system.

[0034] A second shock-absorbing device is located below the first shock-absorbing device. This device comprises, in descending order, a fixed plate 210, second shock-absorbing pads 201, and a mounting bracket 200. The second shock-absorbing pads 201 are arranged in a rectangular array between the fixed plate 210 and the mounting bracket 200. The mounting bracket 200 is fixedly mounted on the frame 100. The mounting bracket 200 is shaped like a U-shaped triangle, and the lifting device 400 passes through the mounting bracket 200 and is fixedly mounted on the bottom of the fixed plate 210.

[0035] In this embodiment, while the first damping device can initially cushion vibrations, some vibration energy may still be transmitted. The second damping pads 201 in the second damping device are arranged in a rectangular array between the fixing plate 210 and the mounting frame 200. When vibrations attenuated by the first damping device are transmitted to the second damping device, these pads further absorb and disperse the vibration energy, thereby further reducing damage to the lifting device 400.

[0036] The mounting frame 200 is in the shape of a Chinese character "U." The second shock-absorbing pads 201 are arranged at the four corners of the mounting frame 200 , thereby providing support to the fixing plate 210 from multiple directions to prevent it from shaking or deflecting during vibration.

[0037] The entire device is a complex mechanical system. Resonance can occur between components due to similar vibration frequencies, greatly amplifying the vibration and causing serious damage. The second damping device modifies the frequency characteristics of vibration transmission, absorbing and dispersing vibration energy, thereby reducing vibration coupling between the various components. This effectively prevents resonance, maintains normal operation, and reduces equipment failures and noise issues caused by resonance.

[0038] Vibration is a major source of noise. Undamped vibration transmission can cause resonances in equipment components, amplifying the noise. The first and second damping devices buffer vibrations, breaking the direct transmission of vibration energy that causes resonance and effectively reducing equipment operating noise. In work scenarios such as logistics and security inspections, a quiet equipment operating environment helps workers focus on operations and improves work efficiency. It also meets environmental requirements and reduces noise pollution to the surrounding environment.

[0039] A plurality of guide seats 211 are mounted on the fixed plate 210. The guide seats 211 are guide shaft supports. The guide seats 211 are arranged in a rectangular array. A plurality of guide rods 331 are fixedly mounted on the bottom of the box body 330. The guide rods 331 pass through the guide seats 211 and cooperate with the guide seats 211. In this embodiment, when the vibration device is in the process of lifting, the cooperation between the guide rods 331 and the guide seats 211 can ensure that the vibration device is lifted and lowered vertically along a predetermined direction. The rectangular array of guide seats 211 is distributed on the fixed plate 210, providing a stable guide path for the plurality of guide rods 331. This guide structure helps to enhance the stability of the entire vibration transmission device. The combination of the plurality of guide rods 331 and the plurality of guide seats 211 forms a stable connection system between the vibration device and the components below (such as the second shock absorbing device, etc.).

[0040] A first sealing plate 120 is provided below the roller 110 and is fixed on the frame 100. The first sealing plate 120 is recessed downward corresponding to the position of the vibration base plate 300 to form a cavity 121. A through groove for the box body to pass through is provided at the bottom of the cavity 121; a shock-absorbing pad 1211 is fixedly installed at the bottom of the cavity 121.

[0041] In this embodiment, the shock-absorbing pad 1211 is a high-strength rubber cushion. The provision of the shock-absorbing pad 1211 can prevent the vibration base plate 300 from directly colliding with the first sealing plate 120 during the descent process. The design of the first sealing plate 120 being recessed downward to form the cavity 121 allows the vibration base plate 300 and the vibration block 310 to be compactly installed under the roller 110 without taking up additional space. This compact layout helps to optimize the overall structure of the equipment and improve space utilization. The provision of the first sealing plate 120 can prevent debris from falling into the interior of the equipment, which helps to protect the internal components of the equipment from damage while keeping the interior of the equipment clean and dry.

[0042] The queuing device includes a second conveyor device 500. This second conveyor device 500 is a conveyor belt driven by a servo motor. Installing a queuing device in front of the inspection device ensures that luggage or parcels enter the inspection device in a certain order. Customs often handles a large volume of luggage and parcels. Without a queuing device, these items could flow into the inspection device in a disorderly manner, causing congestion in the inspection channel. The queuing device ensures that only one item or a group of items (based on the throughput of the inspection device) enters the inspection area at a time, much like queuing barriers at supermarket checkout counters. This prevents confusion and ensures an orderly inspection process.

[0043] The queuing device can perform preliminary positioning and spacing adjustments for items. The detection device may need to scan specific locations on the items or require a certain spacing to ensure effective detection. The queuing device ensures that items enter the detection device with the appropriate posture and spacing, allowing the detection device's sensors to fully and accurately detect the presence of living organisms within the items, reducing missed detections due to improper positioning or mutual obstruction of objects.

[0044] The queuing device allows customs officers to more clearly visualize the inspection process. Based on the queued items on the queuing device, officers can prepare for inspections in advance, such as checking the status of the inspection device and preparing recording tools. Furthermore, by observing the queues, officers can promptly detect anomalies, such as items remaining on the queuing device for extended periods or disruptions to the queue order, enabling timely intervention.

[0045] The queuing device can be integrated with customs information management systems. During the queuing process, each item's information (such as source, destination, and shipper) can be recorded and mapped to its position in the queuing device. This allows for easier tracing of relevant information should problems be discovered during subsequent inspections. It also helps customs compile and analyze inspection data, such as item inspection status over different time periods, flights, or trains, providing data support for customs management decisions.

[0046] The detection device includes a detection cover 700 and a third conveyor 600. The third conveyor 600 is a conveyor belt driven by a servo motor. The detection cover 700 is in a U-shaped configuration and is positioned above the third conveyor 600. Liveness detection sensors 711 are staggered on both sides of the detection cover 700. The transmitting and receiving ports of the liveness detection sensors 711 are tilted toward the third conveyor 600.

[0047] Servo motors offer high-precision speed control. In liveness detection equipment, precise speed coordination is crucial for connecting the vibrating conveyor to the queuing unit, as well as for conveying luggage or parcels from the queuing unit to the detection unit. Servomotors precisely adjust the conveyor speed according to pre-programmed settings, ensuring that items flow through each stage at a steady and appropriate pace.

[0048] When temporary adjustments to the conveyor belt speed are needed during operation, the servo motor can respond quickly. For example, if customs detects a high risk of live objects in a particular batch of luggage and needs to slow down inspection for a more thorough examination, the servo motor can quickly reduce the conveyor belt speed. Alternatively, if the queuing device detects a buildup of subsequent items and needs to expedite feeding to the inspection device to maintain smooth flow, the servo motor can quickly increase the speed. This rapid response capability allows the equipment to flexibly respond to various emergencies and real-time needs, optimizing the overall workflow and reducing congestion or delays caused by untimely speed adjustments.

[0049] Traditional single-angle sensors may only be able to detect one or a limited number of facing surfaces, but this staggered and tilted design can ensure cross-detection of multiple sides of the luggage and even parts of the top and bottom areas, effectively reducing detection blind spots and greatly improving the comprehensiveness of liveness detection.

[0050] In this embodiment, mounting slots 710 are defined on both sides of the detection cover 700. These slots 710 are offset, with their upper sidewalls inclined. The angle between the upper sidewalls of the slots 710 and the vertical plane is 30-70°, resulting in a V-shaped cross-section. A liveness detection sensor 711, a millimeter-wave radar, is mounted on the upper sidewall of the slots 710.

[0051] The unique design of mounting slot 710 creates ideal operating conditions for millimeter-wave radar. The inclined upper and lower sidewalls allow the radar's electromagnetic waves to strike the luggage surface at a specific angle. When encountering a living object within the luggage, the electromagnetic waves' return path is optimized, facilitating accurate reception of the reflected signal by the radar. Compared to vertical mounting, this tilted angle avoids interference caused by direct signal reflection, such as signal loss or misjudgment caused by specular reflection. This enhances the sensor's ability to detect weak vital signs, improves detection sensitivity, and reduces the probability of missed and false detections.

[0052] The detection sensor is installed 20-60cm above the conveyor belt. For sensors such as millimeter-wave radar, which rely on electromagnetic waves for detection, if they are too close to the luggage or parcel, the electromagnetic waves will attenuate too quickly after penetrating the luggage, and may not be able to effectively detect the living organism signals deep inside, resulting in missed detections. At greater distances, although the electromagnetic waves attenuate relatively slowly, the signal strength decreases during propagation, making it difficult to accurately capture the weak reflected signal, which also affects detection effectiveness. Within this height range, the electromagnetic waves have sufficient penetration power to penetrate deep into the luggage, while the reflected living organism signature signal maintains a certain strength for easy reception by the sensor, thus ensuring effective detection of living organisms in packages of varying thicknesses and materials.

[0053] From the perspective of detection accuracy, if the sensor is mounted too low, its detection angle will be narrowed, focusing only on a small area of ​​the conveyor belt surface. The edges and corners of larger objects may be overlooked, reducing detection comprehensiveness. If the sensor is mounted too high, while the detection range will be expanded, the wider angle of view will increase the amount of ambient clutter received, interfering with the analysis of target liveness signals and reducing detection accuracy. The 50-70cm height setting cleverly balances these two factors, providing the sensor with a moderately wide angle of view to cover most areas of commonly sized luggage while limiting clutter interference, ensuring high-precision detection of live objects.

[0054] A camera is installed on the top of the detection cover 700, along with an audible and visual alarm. A display is also installed on the outside of the detection cover 700. In this embodiment, the camera installed on the top of the detection cover 700 provides visual monitoring information. During the liveness detection process, millimeter-wave radar primarily relies on electromagnetic waves to detect the presence of living organisms within luggage or parcels, but it cannot directly display the actual scene inside the luggage. The camera can capture real-time images of the luggage on the conveyor belt, complementing the radar detection data. If the detection device detects signs of liveness within the luggage or parcel, the audible and visual alarm is immediately activated. The bright light and piercing alarm immediately attract the attention of staff, ensuring that the abnormal situation is promptly addressed. The display installed on the outside of the detection cover 700 provides a visual display of key information, such as detection results and equipment operating status. Staff can simply observe the display next to the equipment to understand the presence of living organisms in the luggage being tested, the detection progress, and the operating status of various equipment components (such as conveyor belt speed and sensor operating status), without having to operate other terminals. This greatly improves work efficiency and enables staff to make quick judgments and decide whether to conduct further inspection or release the baggage.

[0055] Shielding curtains are also provided at the entrance and exit of the detection cover 700, and the outer shell of the detection cover 700 is made of metal shielding material. In this embodiment, the outer shell of the detection cover 700 is made of metal shielding material, which can effectively block external electromagnetic interference. In complex working environments such as customs and logistics centers, there are various electronic devices, such as large security inspection machines, communication equipment, electric handling tools, etc., which all generate electromagnetic fields of different frequencies and intensities. If these external electromagnetic fields invade the interior of the detection cover 700, they will interfere with the normal operation of the liveness detection sensor 711, such as the millimeter-wave radar, causing noise, fluctuations or even errors in the detection signal. The metal shielding shell is like an "electromagnetic shield", creating a relatively pure electromagnetic environment for the sensor, ensuring that the signal received by the sensor is true and accurate, thereby improving the accuracy and reliability of liveness detection.

[0056] Shielding curtains at the entrance and exit further enhance electromagnetic shielding. These two barriers minimize the passage of electromagnetic signals as luggage or packages enter and exit the detection enclosure 700. On the one hand, they prevent external electromagnetic signals from slipping into the enclosure and interfering with sensor operation. On the other hand, they prevent electromagnetic waves emitted by internal sensors from leaking into the external environment, causing unnecessary signal loss and potentially impacting nearby personnel or other equipment.

[0057] In summary, the vibrating conveyor, as the initial link, utilizes its vibration function to "activate" luggage or parcels at the very beginning of their transport. If a live animal is hidden within, the vibration will startle the animal and provoke it into action, paving the way for subsequent, accurate detection. Simultaneously, it adjusts the object's position to prevent accumulation and jamming, ensuring stable transport to the queuing device. The queuing device, using a servo-motor-driven conveyor belt, arranges items in a strict sequence and within predetermined spacing, arranging the disorganized luggage or parcels passing through the vibrating conveyor in an orderly fashion and feeding them into the detection device with precise rhythm. The detection device, utilizing a U-shaped detection cover 700 and staggered, tilted liveness detection sensors 711, provides comprehensive, unobstructed detection of orderly incoming items. The three elements work seamlessly together, from initial item sorting and sequencing to final, accurate detection. This seamless integration significantly improves the efficiency of the entire inspection process, avoiding time wasted due to disconnected or chaotic links.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A living body detection device, characterized in that: include: A vibration transmission device and a detection device are arranged in sequence; The vibrating transmission device comprises a frame (100), a vibrating device, a lifting device (400) and a first conveying device, the vibrating device comprising a vibrating block (310) and a vibration generating device (320), the vibrating block (310) being arranged between the first conveying device, the vibrating block (310) rising or falling under the action of the lifting device (400), and the vibration generating device (320) being used to drive the vibrating block (310) to vibrate; The detection device comprises a detection cover (700) and a third conveying device (600), wherein the detection cover (700) is arranged above the third conveying device (600), and two side walls of the detection cover (700) are staggeredly provided with living body detection sensors (711), and the transmitting port and the receiving port of the living body detection sensor (711) are inclined toward the third conveying device (600); The luggage or parcel passes through the first conveying device and the third conveying device (600) in sequence.

2. A liveness detection device according to claim 1, characterized in that: The vibration block (310) is installed on the top of the vibration base plate (300), and the vibration generating device (320) is installed on the bottom of the vibration base plate (300); A first shock-absorbing device is further provided between the lifting device (400) and the vibration device. The first shock-absorbing device comprises a box body (330), a push plate (410) and a first shock-absorbing foot pad (411) which are arranged in sequence from top to bottom. The first shock-absorbing foot pad (411) is arranged in a rectangular array between the box body (330) and the push plate (410). The box body (330) is covered outside the vibration generating device (320). The box body (330) is fixedly connected to the vibration base plate (300); and the push plate (410) is fixedly connected to the lifting device (400).

3. The liveness detection device according to claim 2, wherein: A second shock absorbing device is further provided below the first shock absorbing device, the second shock absorbing device comprising a fixing plate (210), a second shock absorbing foot pad (201) and a mounting frame (200) which are arranged in order from top to bottom; The second shock-absorbing foot pads (201) are arranged in a rectangular array between the fixing plate (210) and the mounting frame (200), and the mounting frame (200) is fixedly mounted on the frame (100); the mounting frame (200) is in a round shape, and the lifting device (400) passes through the mounting frame (200) and is fixedly mounted on the bottom of the fixing plate (210).

4. A liveness detection device according to claim 3, characterized in that: A plurality of guide seats (211) are mounted on the fixed plate (210), and the guide seats (211) are arranged in a rectangular array. A plurality of guide rods (331) are fixedly mounted on the bottom of the box body (330), and the guide rods (331) pass through the guide seats (211) and cooperate with the guide seats (211).

5. The liveness detection device according to claim 4, characterized in that: The first conveying device includes a plurality of rollers (110), and the rollers (110) are spaced and installed on the top of the frame (100); the vibration block (310) is arranged between adjacent rollers (110).

6. A living body detection device according to claim 5, wherein: A first sealing plate (120) is arranged below the roller (110), the first sealing plate (120) is fixed on the frame (100), a cavity (121) is formed by the first sealing plate (120) recessing downward at a position corresponding to the vibration bottom plate (300), a through groove for the box body to pass through is opened at the bottom of the cavity (121); a shock-absorbing cushion block (1211) is fixedly installed at the bottom of the cavity (121).

7. A living body detection device according to claim 6, wherein: The vibration generating device (320) is a vibration motor.

8. A living body detection device according to any one of claims 1-7, wherein: The detection cover (700) is in a U-shaped font, mounting grooves (710) are opened on both side walls of the detection cover (700), the two mounting grooves (710) are arranged in a staggered manner, the upper side wall of the mounting groove (710) is inclined, and the living body detection sensor (711) is installed on the upper side wall of the mounting groove (710).

9. A living body detection device according to claim 8, wherein: The included angle between the upper side wall of the mounting groove (710) and the vertical plane is 30-70°, and the cross section of the mounting groove (710) is in a V-shaped font.

10. A living body detection device according to claim 9, wherein: The third conveying device (600) is a conveyor belt, and the detection sensor is installed 20-60 cm above the conveyor belt.

11. A living body detection device according to claim 10, wherein: The living body detection sensor (711) is a millimeter-wave radar, a camera is arranged on the top of the detection cover (700), an audible and visual alarm is arranged on the detection cover (700), and a display is arranged on the outer side of the detection cover (700).

12. A living body detection device according to claim 11, wherein: Shielding curtains are further arranged at the entrance and exit of the detection cover (700), and the outer shell of the detection cover (700) is made of a metal shielding material.

13. A living body detection device according to claim 12, wherein: It further includes a queuing device, the queuing device is arranged between the conveying device and the detection device, the queuing device includes a second conveying device (500), the second conveying device (500) is a conveyor belt, and the second conveying device (500) and the third conveying device (600) are driven by a servo motor.

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