CN210222867U - Portable security inspection recognition device - Google Patents
Portable security inspection recognition device Download PDFInfo
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- CN210222867U CN210222867U CN201921418361.2U CN201921418361U CN210222867U CN 210222867 U CN210222867 U CN 210222867U CN 201921418361 U CN201921418361 U CN 201921418361U CN 210222867 U CN210222867 U CN 210222867U
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Abstract
The utility model provides a portable security inspection identification device, which comprises a portable data processing terminal and a fixing piece; the portable data processing terminal is worn on the body of a security inspector through the fixing piece; the portable data processing terminal comprises a camera module, a face data processing module and a feature storage module, wherein the feature storage module is used for loading upper computer data and storing face feature information of a specific person; the output end of the camera module is connected with the input end of the face data processing module; the face data processing module is connected with the feature storage module, and compares the acquired face features with the face features of the specific personnel stored in the feature storage module to acquire a face recognition result; the utility model discloses portable equipment, convenient operation possesses the disguise, the smooth of guarantee safety inspection work goes on.
Description
Technical Field
The utility model relates to an intelligent security field especially relates to a portable security inspection recognition device.
Background
With the continuous acceleration of the urbanization process in China, the population density of cities is increased sharply, and the passenger flow volume of public travel places such as large and medium-sized airports, high-speed rail stations and the like is increased year by year, so that new challenges are brought to the security protection of the places such as the airports, the high-speed rail stations and the like. At present, all large airports have no fully-automatic security inspection process, and different workers are still required to cooperatively operate at respective posts. For example, a worker at a security check station finds a suspicious person, presses an alarm button, and needs other workers to check and confirm the suspicious person, report to an alarm party, and then organize the capture according to the situation of the scene. In the process, the first difficulty is to confirm the suspicious personnel, the second difficulty is to capture the suspicious personnel, and how to reduce the influence on other passengers in the capture process is also a big problem.
SUMMERY OF THE UTILITY MODEL
In view of the problem that prior art exists above, the utility model provides a portable security inspection recognition device mainly solves the inconvenient problem of the big place security inspection check of flow of people.
In order to achieve the above and other objects, the present invention adopts the following technical solutions.
A portable security inspection identification device comprises a portable data processing terminal and a fixing piece;
the portable data processing terminal is worn on the body of a security inspector through the fixing piece;
the portable data processing terminal comprises a camera module, a face data processing module and a feature storage module, wherein the feature storage module is used for loading upper computer data and storing face feature information of a specific person; the output end of the camera module is connected with the input end of the face data processing module; the face data processing module is connected with the feature storage module, and compares the acquired face features with the face features of the specific personnel stored in the feature storage module to acquire a face recognition result.
Optionally, the face data processing module includes a feature extraction unit and an identification unit, and an output end of the camera module is connected with an input end of the feature extraction unit; the output end of the feature extraction unit is connected with the input end of the identification unit; the identification unit is connected with the feature storage module.
Optionally, the face data processing module further includes a face quality evaluation unit for performing image screening according to image quality, an input end of the face quality evaluation unit is connected to an output end of the face acquisition unit, and an output end of the face quality evaluation unit is connected to an output end of the feature extraction unit.
Optionally, the portable data processing terminal further comprises a warning module, the warning module is connected with the face data processing module, and when the face data processing module identifies the face of the specific person, the warning module sends a warning signal.
Optionally, the warning module includes a voice prompt unit and an indicator light prompt unit, and the warning module starts the corresponding prompt unit according to the recognition result.
Optionally, the camera module is provided with a face detector, the face detector detects a face position in advance, and then the camera module shoots a face image.
Optionally, the portable data processing terminal further includes a security authentication module for identity authentication and data encryption, and the security authentication module is connected to the camera module, the data processing module, and the feature storage module, respectively.
Optionally, the portable data processing terminal is further provided with a power supply module, and the power supply module is electrically connected with the portable data processing terminal through a mounting seat arranged on the fixing piece.
Optionally, the portable data processing terminal is further provided with a communication module, and the portable data processing terminal is connected with the upper computer through the communication module and exchanges data with the upper computer.
Optionally, a heart rate detector for detecting the fatigue state of the security personnel is arranged on the fixing member.
As mentioned above, the utility model relates to a portable security inspection recognition device has following beneficial effect.
The portable data processing terminal is used for face recognition and verification, can be worn on the body of a security inspector, is convenient to carry, is not easy to be perceived by the inspector, and is high in concealment; historical data are stored through the verification terminal, manual verification is carried out on the collected images according to needs, and operation is convenient.
Drawings
Fig. 1 is a block diagram of a portable security inspection identification device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a portable security inspection identification device, which includes a portable data processing terminal and a fixing member.
In one embodiment, the portable data processing terminal may comprise a wearable device, and the portable data processing terminal is mounted on a fixing member, which may be a work cap or may be temporarily fixed at a corresponding position on the collar or shoulder of a work garment by a clip such as a pin. The fixing piece can be further provided with a mounting seat, the mounting seat is used for placing a power supply module, and the power supply module is electrically connected with the portable data processing terminal through the mounting seat. In one embodiment, the power supply module provides operating power for each module and unit of the portable data processing terminal. The power supply module 11 may be a storage battery and the portable data processing terminal is provided with an interface dedicated to charging the power supply unit. The power supply module 11 can also supply power to each power utilization unit through a dry battery.
The portable data processing terminal comprises a camera module 01, a human face data processing module and a feature storage module 05. The feature storage module 05 is connected with the face data processing module.
In one embodiment, the feature storage module 05 may use an Embedded MultiMedia memory (eMMC) for storage. The eMMC can realize quick data reading and guarantee data safety during abnormal power failure. The feature storage module 05 stores face feature information of a specific person. Specific persons include missing persons, suspects, significant counter-workers, etc. Before use, the feature storage module 05 may download the face data from the specific person database on the server side in advance. Can be downloaded directly through a USB interface or remotely through a wireless network. When the data in the feature storage module 05 needs to be updated in real time, the wireless communication module can be connected with the server database to remotely download the updated data. The feature storage module 05 is arranged, so that the portable data processing terminal can successfully complete the face comparison and identification functions in an off-line state, and the flexibility and the adaptability of the terminal equipment are enhanced.
In one embodiment, the face data processing module includes a feature extraction unit 03 and a recognition unit 04. The camera module 04 may be a patch camera. In another embodiment, the camera module 01 is further provided with a face detector, and the face detector comprises a face detection model which is trained by a multitask convolutional neural network in advance. Images containing human faces under different application scenes can be selected for detection model training, and the training method is well known to those skilled in the art and is not described herein again. The face detector detects face information of an image area to be acquired in advance before the image acquisition is performed by the camera module 01. If no face exists, no image is taken, if the face exists, the image is fed back to the image pickup module 01, and the image pickup module 01 only takes an image of a face region. The face detector is arranged, so that the terminal only needs to transmit and process the face image, the data transmission amount can be effectively reduced, the requirement on network bandwidth is reduced, and the face recognition efficiency is improved.
In an embodiment, the face data processing module is further provided with a face quality evaluation unit 02, and an input end of the face quality evaluation unit 02 is connected with an output end of the camera module 01. And receiving the face image shot by the camera module 01. The face quality evaluation unit 02 performs quality evaluation on the face image according to the gradation, contrast, resolution, and the like of the received face image. The face quality evaluation unit 02 may include a face image quality evaluation calculation model. For the quality evaluation of the face image, objective evaluation methods such as Mean Square Error (MSE) and peak signal-to-Noise ratio (PSNR) can be adopted. Taking the mean square error method as an example, the distortion degree of the image is determined by calculating the mean square value of the difference value of the two image pixels and the magnitude of the mean square value. The specific calculation process is well known to those skilled in the art and will not be described herein. The face quality evaluation unit 02 screens the face images, and selects the face image with relatively high score as an output image. And the image screening is carried out to obtain the image with higher quality, which is beneficial to obtaining more accurate human face characteristics and can effectively improve the accuracy of human face recognition.
The output end of the human face quality evaluation unit 02 is connected with the input end of the feature extraction unit 03. In one embodiment, the feature extraction unit 03 may include a feature extraction model trained by a feature extraction algorithm. Common feature extraction algorithms include a direction gradient histogram method, a local binary model method, and the like. Taking the directional gradient histogram method as an example, because the gradient exists mainly in the edge region in the statistical information of the gradient, in an image, the appearance and shape of the local object can be well described by the gradient or the directional density distribution of the edge. The method comprises the steps of graying an image, calculating the gradient of each pixel, constructing a gradient histogram of a local area, encoding the local image according to the histogram, and collecting directional gradient histogram features. The specific calculation process is common knowledge in the art and will not be described herein.
In an embodiment, the output end of the feature extraction unit 03 is connected to the input end of the recognition unit 04, and the recognition unit 04 includes a face recognition model that is trained by a deep neural network in advance. The method comprises the steps of collecting face images in advance, conducting denoising, graying and other processing on the face images, extracting face features and establishing a feature training library based on the face features. Furthermore, a preliminary model is obtained by carrying out unsupervised learning on samples in the feature training library, and then model training is carried out by taking the weight of the unsupervised learning as an initial value of the supervised learning to obtain the face recognition deep neural network model. The detailed training process is well known to those skilled in the art and will not be described in detail herein. The recognition unit 04 is further connected to the feature storage module 05, and when performing face recognition, the recognition unit 04 may read face feature information stored in the feature storage module 05 in advance. Comparing the feature information corresponding to the acquired face image with the pre-stored face feature information, and if the comparison result is matching, sending out warning information through a warning module connected with the identification unit 04; if the comparison result is not matched, the next recognition is continuously executed.
In an embodiment, the warning module includes a voice prompt unit, an indicator light prompt unit, and the like, and the voice prompt unit may include a speaker, is disposed at the verification terminal, and reminds the worker to recognize specific face information through voice. The indicator light prompt unit can be a red-green indicator light and can be arranged at the portable data processing terminal, the green indicator light represents matching, and the red indicator light represents mismatching. Since the green light is usually used in places such as airports to indicate passability, the arrangement of the traffic light is not easy to cause the alertness of the person to be inspected.
In one embodiment, a heart rate detector for detecting the fatigue state of the security personnel is arranged on the fixing piece. When the mounting was worn at positions such as staff arm, head, heart rate detector and security check staff skin contact, change through the heart rate that detects the security check staff, judge security check staff's fatigue state, if security check staff is in fatigue state, then remind the security check staff to have a rest, avoid tired work to influence work efficiency.
In an embodiment, the portable data processing terminal further includes a security authentication Module 06, and the security authentication Module 06 may include an Embedded security control Module (ESAM). The ESAM is a processor chip packaged by DIP or SOP, has safe ROM and EEPROM safety control, advanced encryption protocol processor and other safety structures, has the hardware safety characteristics of detection prevention, attack resistance, self-destruction and the like, and can effectively guarantee the safety of data transmission in the face recognition process. The security authentication module 06 is connected with the feature storage module 05, and can read the face feature data from the feature storage module 05, encrypt the data, and store the encrypted data in the feature storage module 05 for subsequent face recognition. The security authentication module 06 is connected to the identification unit 04, and can directly encrypt the data in the feature storage module 05 and send the encrypted data to the identification unit 04 for face identification. The security authentication module 06 is connected to the feature extraction unit 05, and sends the face feature vector obtained by the feature extraction unit 03 to the identification unit 04 after encryption processing, so as to perform face feature comparison.
In one embodiment, the portable data processing terminal establishes connection with the upper computer through the communication module. The communication module can be a WiFi communication module, a 4G communication module or other modules capable of realizing wireless communication. When the upper computer is connected with the portable data processing terminal, the upper computer is connected with the safety authentication module through the communication module to perform identity login authentication, and corresponding data of the portable data processing terminal are authorized to be received after the authentication is passed.
Specifically, in places with large human traffic, such as airports, etc., suspect screening is performed, and the face information of the suspect may be loaded into the feature storage module 05 in advance. The security check personnel wear the portable data processing terminal at the hidden places such as the chest, the neckline or the working cap, etc., which can not only aim at the face of the person to be checked, but also is not easy to cause the alertness of the person to be checked. And aligning the portable data processing terminal to the face to acquire a face image, and comparing the face image with the face data in the feature storage module 05 to obtain a recognition result. The portable data processing terminal can perform data encryption and access authentication through the security authentication module 06 in the data transmission process.
In summary, the portable security inspection identification device of the utility model has the advantages that the security authentication module ensures the face information data exchange and the access security, and prevents the face information data from being maliciously stolen and stolen; the device registration is ensured to be safe and network attack to the server is avoided; the face detection and quality evaluation are set, so that the network bandwidth requirement can be effectively reduced, and the calculation amount in the identification process is reduced; the portable equipment can be directly worn on the body of a security check person, has concealment performance and is not easy to cause the alertness of the checked person; the portable data processing terminal can acquire specific human face characteristics in advance through the characteristic storage module, and the terminal can still work normally in an off-line state. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A portable security inspection identification device is characterized by comprising a portable data processing terminal and a fixing piece;
the portable data processing terminal is worn on the body of a security inspector through the fixing piece;
the portable data processing terminal comprises a camera module, a face data processing module and a feature storage module, wherein the feature storage module is used for loading upper computer data and storing face feature information of a specific person; the output end of the camera module is connected with the input end of the face data processing module; the face data processing module is connected with the feature storage module, and compares the acquired face features with the face features of the specific personnel stored in the feature storage module to acquire a face recognition result.
2. The portable security inspection recognition device of claim 1, wherein the face data processing module comprises a feature extraction unit and a recognition unit, and an output end of the camera module is connected with an input end of the feature extraction unit; the output end of the feature extraction unit is connected with the input end of the identification unit; the identification unit is connected with the feature storage module.
3. The portable security inspection recognition device of claim 2, wherein the face data processing module further comprises a face quality evaluation unit for performing image screening according to image quality, an input end of the face quality evaluation unit is connected with an output end of the face acquisition unit, and an output end of the face quality evaluation unit is connected with an output end of the feature extraction unit.
4. The portable security inspection identification device of claim 1, wherein the portable data processing terminal further comprises an alarm module, the alarm module is connected with the face data processing module, and when the face data processing module identifies the face of the specific person, the alarm module sends an alarm signal.
5. The portable security inspection recognition device of claim 4, wherein the warning module comprises a voice prompt unit and an indicator light prompt unit, and the warning module starts the corresponding prompt unit according to the recognition result.
6. The portable security inspection recognition device of claim 1, wherein the camera module is provided with a face detector, the face detector detects the position of the face in advance, and then the camera module is used for shooting the face image.
7. The portable security inspection identification device of claim 1, wherein the portable data processing terminal further comprises a security authentication module for identity authentication and data encryption, and the security authentication module is respectively connected with the data processing module and the feature storage module.
8. The portable security inspection identification device of claim 1, wherein the portable data processing terminal is further provided with a power supply module, and the power supply module is electrically connected with the portable data processing terminal through a mounting seat arranged on the fixing member.
9. The portable security inspection identification device of claim 1, wherein the portable data processing terminal is further provided with a communication module, and the portable data processing terminal is connected with the upper computer through the communication module and exchanges data with the upper computer.
10. The portable security identification device of claim 1, wherein the fixed member is provided with a heart rate detector for detecting fatigue state of security personnel.
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| CN201921418361.2U CN210222867U (en) | 2019-08-29 | 2019-08-29 | Portable security inspection recognition device |
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| CN201921418361.2U CN210222867U (en) | 2019-08-29 | 2019-08-29 | Portable security inspection recognition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117173159A (en) * | 2023-10-26 | 2023-12-05 | 长春市联心花信息科技有限公司 | Dynamic face recognition system and video analysis method based on deep learning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117173159A (en) * | 2023-10-26 | 2023-12-05 | 长春市联心花信息科技有限公司 | Dynamic face recognition system and video analysis method based on deep learning |
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