CN109874171B - Identity verification method and system based on personnel positioning - Google Patents
Identity verification method and system based on personnel positioning Download PDFInfo
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- CN109874171B CN109874171B CN201910038247.5A CN201910038247A CN109874171B CN 109874171 B CN109874171 B CN 109874171B CN 201910038247 A CN201910038247 A CN 201910038247A CN 109874171 B CN109874171 B CN 109874171B
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Abstract
The invention belongs to the technical field of face recognition, and particularly relates to an identity verification method and system based on personnel positioning. The method greatly improves the convenience and efficiency of the identity verification process, the accuracy and the recognition rate of the verification result, dynamically selects the adjusting linkage device under the condition that the face recognition accuracy is reduced in complex scenes such as intensive personnel places, effectively utilizes historical data, and makes up the limitation of the fixed face recognition device in the aspects of recognition angle, direction, distance and the like.
Description
Technical Field
The invention belongs to the technical field of face recognition, and particularly relates to an identity verification method and system based on personnel positioning.
Background
In order to ensure the production is safe and orderly, the identity of personnel is usually verified at the production site, and the personnel who are determined to be qualified allow the personnel to operate at the production site. The worker is usually checked for verification by issuing the worker, but such field verification is inefficient and has an impact on production. The worker card verification has the defects of difficulty in distinguishing true and false, judgment standard for judging whether the information of the worker card is consistent with the identity of a person or not and low efficiency.
With the development of technologies, technologies such as face recognition and fingerprint verification are generally applied to various industries. The face recognition technology realizes identity verification by collecting face information and comparing the face information with information in a face library, and under certain production environments, such as mines, the faces of workers can be polluted, or when face images are collected, the conditions of photos are limited, so that image collection distortion or failure is caused, and misjudgment is easily caused. Similarly, when the fingerprint identification is applied to a production field, a worker needs to enter a fingerprint identification device mounting point position to identify the fingerprint, and the fingerprint is kept clean and dry. In some production fields, workers are easy to contact with oil stains, mud and the like, the situation that errors cannot be identified or identified often occurs, and the verification efficiency and accuracy are reduced. The requirements of face recognition and fingerprint verification on image acquisition environments (equipment and illumination) are high, the cleanliness of the face or the fingerprint is low, the accuracy is low, and the efficiency is low.
Disclosure of Invention
In order to solve the technical defects in the prior art, the invention provides an identity verification method and system based on personnel positioning.
The invention is realized by the following technical scheme:
an identity verification system based on personnel positioning comprises positioning tags, a base station, a linkage device and a server, wherein the positioning tags and the base station are positioned in high precision based on UWB, the tags send UWB pulse signals, each tag has a unique ID number, positioning objects are linked, and the positioning base station determines the positions of the tags through a TDOA (time difference of arrival) measurement technology so as to find the actual positioning position;
the linkage device is provided with a snapshot device;
the server calls a linkage device to turn to shoot the face according to the received GPS information reported by the label;
the server is used for realizing data storage, face recognition service and verification push service business.
Preferably, the data storage includes storage of registered personnel, registered tags and verification result information.
Preferably, the face recognition service is used for calling a face recognition algorithm and calculating the similarity between the registered person image and the snapshot image.
Preferably, the verification push service associates the identification result with the tag, generates a verification success or failure message, and pushes the verification information in real time through the websocket service.
Preferably, a display is arranged on the client, the client establishes websocket connection with the server, acquires the verification information in real time, displays the label information passing and failing the verification through the display in a distinguishing manner, and provides information inspection.
Preferably, the linkage device snapshot according to the real-time GPS coordinates of the tag needs to inquire a verification result according to the ID of the tag, and if the verification result is null, the linkage device is called, wherein the linkage steps are as follows:
1) establishing a field plane coordinate system, determining an original point and x and y axes, and marking linkage device distribution;
2) acquiring the coordinates of the current position and the previous position of the positioning tag, and calculating the orientation of the moving personnel;
3) and selecting the linkage device which is closest to the sporter in the range of +/-30 degrees to complete the grabbing of the face information.
The invention also relates to an identity verification method based on personnel positioning, which comprises the following steps:
1) establishing a face information base: inputting personnel information to form a face information base;
2) registering a positioning label: registering a positioning tag and binding personnel information;
3) and (3) positioning label information uploading linkage: the server receives tag reporting information including a tag ID and a GPS coordinate, and moves the linkage device to turn to snapshot a human face according to the real-time GPS coordinate of the tag;
4) face identification and verification: comparing the personnel information bound by the label with the recognized human face; if the verification is passed, entering the step 5); if the verification is not passed, returning to the step 3);
5) associating the tag verification information, and recording data and results;
6) the client displays the verification result and prompts an alarm, and the manager processes according to the actual situation: the green mark is displayed when the verification is passed, and the red mark is used for warning when the verification is not passed.
Further, the linkage comprises the following steps:
3.1 according to the field environment, arranging a plurality of linkage devices for acquiring the face information in the personnel access passage;
3.2 the server receives the tag ID, and calls a proper linkage device according to the tag GPS coordinate information to snapshot the face;
3.3, searching the information of the binding personnel in the label library to obtain the face information.
Further, after the server receives the tag report information, the method further comprises the following steps: inquiring a verification result; the verification is passed, and the step 5) is entered; and if the verification fails, triggering the linkage device, and entering the step 4).
Further, a verification result library is established, wherein the information at least comprises a tag ID, a personnel information association ID and a verification passing flag bit, and the face recognition verification result of each time is stored in the verification result library for supplementary verification under the condition of face recognition failure.
Compared with the prior art, the invention has at least the following beneficial effects or advantages:
according to the invention, the personnel positioning linkage face recognition technology is adopted to verify the identity of the personnel on site, so that the convenience and efficiency of the identity verification process and the accuracy and recognition rate of the verification result are greatly improved, and the linkage device is dynamically selected and adjusted under the condition that the face recognition accuracy is reduced in complex scenes such as intensive personnel places, so that not only is the historical data effectively utilized, but also the limitations of the fixed face recognition device in the aspects of recognition angle, direction, distance and the like are made up. The method can be applied to the personnel identity authentication of outdoor site and also can be applied to the personnel identity authentication of an indoor access control system.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings;
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a flow chart of a verification method of the present invention;
fig. 3 is a schematic view of the linkage device according to the movement of the sporter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an identity verification method based on personnel positioning, the flow is shown as figure 2, and the following technical scheme is adopted:
1. establishing a face information base: inputting personnel information to form a face information base;
2. registering a positioning label: registering a positioning tag and binding personnel information;
3. and (3) positioning label information uploading linkage: the server receives the tag report information (ID, GPS coordinates), and according to the real-time coordinates of the tags, the linkage device is mobilized to steer to snapshot the human face; wherein, the linkage step is as follows:
3.1 according to the field environment, arranging a plurality of linkage devices for acquiring the face information in the personnel access passage;
3.2 the server receives the tag ID, and calls a proper linkage device according to the tag GPS information to snapshot the face;
3.3 searching the information of the binding personnel in the label library to obtain the face information;
4. face identification and verification: comparing the personnel information bound by the label with the recognized face: and associating the verification result with the positioning label:
and (4) the verification is passed: pushing a passing message and recording identification data and a result;
verification failed: inquiring the identification record corresponding to the label, inquiring the early-stage verification result and pushing a message;
5. the client displays the verification result and prompts an alarm, and the manager processes according to the actual situation:
and (4) the verification is passed: a green mark is displayed and the display is,
verification failed: and marking red for warning.
The invention provides an identity verification system based on personnel positioning, which comprises the following functional modules as shown in figure 1:
location tag and base station: the method adopts UWB (Ultra wide band) high-precision positioning technology, tags send UWB pulse signals, each tag has a unique ID number, positioning objects are connected, and a positioning base station determines the positions of the tags through time difference of arrival (TDOA) measurement technology so as to find the actual positioning position.
Linkage means: the method is characterized in that a proper point position is selected under the current environment, more than one linkage device needs to be installed, a snapshot device of a 360-degree spherical camera is equipped, and the steering can be dynamically adjusted according to a GPS coordinate point so as to obtain the optimal snapshot angle.
Server: the method comprises the business functions of data storage, face recognition service, verification push service and the like. The data storage comprises the storage of information such as registered personnel, registered labels, verification results and the like; the face recognition service is used for calling a face recognition algorithm and calculating the similarity between the registered personnel image and the snapshot image; and the verification pushing service associates the identification result with the label, generates a verification success or failure message, and pushes verification information in real time through a websocket (full duplex communication protocol based on TCP).
Client-side: establishing websocket connection with a server, acquiring verification information in real time, displaying verification passing and non-passing label information on a display respectively, and providing operations such as information inspection.
On the basis of the technical scheme, the personnel information is input into a database, and the information required to be included at least comprises the following information: personnel name, contact information and face photo.
On the basis of the technical scheme, the positioning label is registered, and the positioning service of the label ID is started in the server to acquire the uploading information of the positioning label.
On the basis of the technical scheme, a verification result base is required to be established according to the ID query verification result of the tag, the information comprises at least the ID of the tag, the personnel information association ID and the verification passing flag bit, and the face recognition verification result of each time is stored in the verification result base for supplementary verification under the condition of face recognition failure.
On the basis of the technical scheme, the linkage device is snapped according to the real-time coordinates of the tags, the verification result needs to be inquired according to the ID of the tags, if the verification result is empty, the linkage device is called, the linkage schematic diagram is shown in figure 3, and the linkage steps are as follows:
establishing a field plane coordinate system, determining an original point and x and y axes, and marking linkage device distribution;
acquiring the current position and the previous position coordinates of the positioning label, and calculating the orientation of the moving personnel;
and selecting the linkage device which is closest to the sporter in the range of +/-30 degrees to complete the grabbing of the face information.
On the basis of the technical scheme, if the face information is successfully acquired without completing face snapshot in the process of one-time linkage, the next-time linkage is automatically started.
On the basis of the technical scheme, a similarity threshold needs to be set for face recognition and verification, the person information with the highest similarity in the face information base is obtained according to the face information obtained by the linkage device, if the similarity is higher than the threshold, the verification is successful, a verification success result is pushed to the client, and the verification result is stored in the verification result base. If the similarity is lower than the threshold, pushing a verification failure result to the client, storing the verification result to a verification result library, and keeping a to-be-verified state before the next verification is passed.
On the basis of the technical scheme, the verification result is pushed to the client, and the websocket connection is required to be established between the client and the server, so that the server can push the verification result to the client in real time and display the verification result. The verification passing message comprises positioning label position information and related personnel information for the client to display; the verification failed message includes location tag location information for alerting the client.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the invention are also within the protection scope of the invention.
Claims (9)
1. An identity verification system based on personnel positioning comprises a positioning tag, a base station, a linkage device and a server, and is characterized in that the positioning tag and the base station are positioned in high precision based on UWB, the tag sends out UWB pulse signals, each tag has a unique ID number, positioning objects are linked, and the positioning base station determines the position of the tag through a TDOA (time difference of arrival) measurement technology so as to find the position of actual positioning;
the linkage device is provided with a snapshot device;
the server calls a linkage device to turn to shoot the face according to the received GPS information reported by the label;
the server is used for realizing data storage, face recognition service and verification push service business;
the server calls the linkage device to turn to shoot the human face according to the received GPS information reported by the label, and the method specifically comprises the following steps:
and (3) snapping a link device according to the real-time GPS coordinates of the tag, inquiring a verification result according to the ID of the tag, and calling the link device if the verification result is empty, wherein the link device comprises the following steps:
1) establishing a field plane coordinate system, determining an original point and x and y axes, and marking linkage device distribution;
2) acquiring the coordinates of the current position and the previous position of the positioning tag, and calculating the orientation of the moving personnel;
3) and selecting the linkage device which is closest to the sporter in the range of +/-30 degrees to complete the grabbing of the face information.
2. The personnel location based identity verification system of claim 1 wherein the data store comprises a store of enrolled personnel, an enrolled tag, and verification result information.
3. The personnel location based identity verification system of claim 1 wherein the face recognition service is used for face recognition algorithm invocation and registered personnel image and snapshot image similarity calculation.
4. The personnel location based identity verification system of claim 1, wherein the verification push service associates the identification result with the tag, generates a verification success or failure message, and pushes the verification information in real time through the websocket service.
5. The personnel location-based identity authentication system as claimed in claim 1, wherein a display is provided on the client, the client establishes a websocket connection with the server, acquires authentication information in real time, displays tag information of passing and failing authentication through the display in a differentiated manner, and provides information inspection.
6. An identity verification method based on personnel positioning is characterized by comprising the following steps:
1) establishing a face information base: inputting personnel information to form a face information base;
2) registering a positioning label: registering a positioning tag and binding personnel information;
3) and (3) positioning label information uploading linkage: the server receives tag reporting information including a tag ID and a GPS coordinate, and moves the linkage device to turn to snapshot a human face according to the real-time GPS coordinate of the tag;
4) face identification and verification: comparing the personnel information bound by the label with the recognized human face; if the verification is passed, entering the step 5); if the verification is not passed, returning to the step 3);
5) associating the tag verification information, and recording data and results;
6) the client displays the verification result and prompts an alarm, and the manager processes according to the actual situation: displaying a green mark when the verification is passed, and warning that the verification is not passed by marking red;
the server receives tag report information including a tag ID and a GPS coordinate, and the specific steps of moving the linkage device to turn to snapshot the human face according to the real-time GPS coordinate of the tag are as follows:
and (3) snapping a link device according to the real-time GPS coordinates of the tag, inquiring a verification result according to the ID of the tag, and calling the link device if the verification result is empty, wherein the link device comprises the following steps:
1) establishing a field plane coordinate system, determining an original point and x and y axes, and marking linkage device distribution;
2) acquiring the coordinates of the current position and the previous position of the positioning tag, and calculating the orientation of the moving personnel;
3) and selecting the linkage device which is closest to the sporter in the range of +/-30 degrees to complete the grabbing of the face information.
7. The personnel location based identity verification method of claim 6 wherein in said step 3), said linkage comprises the steps of:
3.1 according to the field environment, arranging a plurality of linkage devices for acquiring the face information in the personnel access passage;
3.2 the server receives the tag ID, and calls a proper linkage device according to the tag GPS coordinate information to snapshot the face;
3.3, searching the information of the binding personnel in the label library to obtain the face information.
8. The personnel location based identity verification method of claim 6, further comprising the step of, after the server receives the tag report information: inquiring a verification result; the verification is passed, and the step 5) is entered; and if the verification fails, triggering the linkage device, and entering the step 4).
9. The personnel location based identity verification method of claim 8, wherein a verification result library is established, which comprises at least a tag ID, a personnel information association ID and a verification passing flag bit, and each face recognition verification result is stored in the verification result library for supplementary verification in case of face recognition failure.
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