CN210776717U

CN210776717U - Face recognition court trial interaction terminal control system

Info

Publication number: CN210776717U
Application number: CN201921608967.2U
Authority: CN
Inventors: 许栋; 孟祥媛; 谢修志
Original assignee: Jiangsu Xinshiyun Science And Technology Co ltd
Current assignee: Jiangsu Xinshiyun Science And Technology Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-06-16
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a control system at face identification court's trial interactive terminal belongs to the electron technical field, including panel computer and the control unit, the control unit includes control chip, function button unit, speech unit and image unit, has solved a technical problem who has multiple video input interface court's trial interactive terminal, the utility model provides a 2D color picture input interface and 3D structure optical module collection input interface that high definition digtal camera shot have increased multiple face identification's interface channel, have increased the degree of accuracy.

Description

Face recognition court trial interaction terminal control system

Technical Field

The utility model belongs to the technical field of electron, especially, relate to a face identification court's trial interaction terminal's control system.

Background

The intelligent court is based on modern artificial intelligence, is based on the judicial law as the citizen and the justice, adheres to the law of the judicial law, integrates system reform and technical change, supports judicial judgment, litigation service and judicial management in a highly information mode, and realizes organization, construction, operation and management forms of the civil court of all-service online handling, all-flow legal disclosure and all-round intelligent service. In 2018, in 4 months, both an evaluation report issued by the highest people's court and a third-party evaluation report show that the national ' intelligent court ' is formed preliminarily.

The court on the cloud is a complete intelligent court trial support system. Before opening a court, face recognition can be adopted to automatically compare and verify the identity information of a party to be authenticated, and identity authentication can be quickly completed; in the court trial process, an AI identification technology is adopted, and necessary legal term professional analysis is provided for the parties lacking legal knowledge through an intelligent screen; after the court trial is finished, the whole court trial process recorded by the 'court on the cloud' generates the adjustable electronic court trial file according to the cases, so that the key elements of each link in the court trial process can be traced after the judgment. In addition, the court on the cloud can also push related cases and laws for the judge judges through established knowledge maps in different judge fields, so that data resource sharing is realized, and the purpose of assisting the judge through artificial intelligence is achieved.

Face recognition is a biometric technology for identity recognition based on facial feature information of a person. A series of related technologies, also commonly called face recognition and face recognition, are used to collect images or video streams containing faces by using a camera or a video camera, automatically detect and track the faces in the images, and then perform face recognition on the detected faces. By adopting the rapid face detection technology, the face can be searched from the monitoring video image in real time and is compared with the face database in real time, so that rapid identity recognition is realized. Face recognition products have been widely used in jurisdictions, public security, finance, military, frontier inspection, government, aerospace, power, factory, education, medical treatment and many fields.

The traditional camera and acquisition equipment based on 2D face recognition usually predict and assume based on a small amount of samples, judge texture information, mouth size, interocular distance and the like of a face through a written program, and obtain information of a two-dimensional plane. However, from the perspective of the algorithm, no matter how much light is irradiated, the angle is processed more positively, and deeper information such as the degree of the concave of the eyes, the height of the nose, and even the related information of the face cannot be obtained all the time.

However, the 2D-based face recognition system still has some vulnerabilities, such as a biosensor level attack, a database attack and other attack means, which can cause great damage. An attacker breaks the existing security system through still photos, human face videos and other modes. Therefore, with the development of anti-spoofing means, liveness detection techniques have come up. The technology generally adopts a mode of cooperating with command actions, such as left turning, right turning, mouth opening, blinking and the like of a human face. But the user experience effect brought by the way of completing identity authentication through user cooperation is not good; furthermore, this technique cannot prevent video attacks or attacks of face synthesis techniques.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a control system at face identification court trial interaction terminal has solved a technical problem who has multiple video input interface court trial interaction terminal.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a control system of a face recognition court trial interaction terminal comprises a tablet personal computer and a control unit, wherein the control unit comprises a control chip, a function key unit, a voice unit and an image unit;

the function key unit comprises a plurality of keys, and each key is respectively connected with different IO ports of the control chip;

the voice unit comprises a voice processing device, an MIC array, an audio input unit and a loudspeaker, wherein the MIC array and the audio input unit are both connected with the control chip through the voice processing device, and the loudspeaker is connected with the control chip;

the image unit comprises a high-definition camera, a 3D structure optical module and an image processing chip, and the high-definition camera and the 3D structure optical module are communicated with the control chip through the image processing chip.

Preferably, the image processing chip comprises a VGA conversion chip, a MIPI conversion chip and a video conversion switch, a VGA interface is connected with a data input end of the VGA conversion chip, a video conversion switch is connected with a data output end of the VGA conversion chip, an HDMI interface is further connected with an input end of the video conversion switch, an MIPI conversion chip is connected with an output end of the video conversion switch, and the MIPI conversion chip is connected with the control chip.

Preferably, the model of the VGA conversion chip is MS9282, the model of the MIPI conversion chip is LT6911C, and the model of the video switcher is LT8631 UX.

Preferably, the intelligent terminal also comprises a 4G module and a WIFI module, and the 4G module and the WIFI module are both connected with the control chip.

Preferably, the display device further comprises a display driver interface, and the display driver interface is used for driving the external display screen after the MIPI interface is converted into the LVDS interface.

Preferably, the voice processing device comprises an audio decoding chip, the audio input unit comprises an MIC interface, the MIC interface is connected with the audio decoding chip through an amplifying circuit, the audio decoding chip is connected with the control chip, the MIC array is connected with the audio decoding chip through an I2S bus, and the audio decoding chip is ES8316 in model.

Preferably, the model of the 4G module is SIM7600CE, and the model of the WIFI module is AP 6212A.

A control system at mutual terminal of face identification court trial, solved a technical problem who has the mutual terminal of multiple video input interface court trial, the utility model provides a 2D color picture input interface and 3D structure optical module collection input interface that high definition digtal camera shot have increased multiple face identification's interface channel, have increased the degree of accuracy.

Drawings

Fig. 1 is a block diagram of the circuit diagram of the present invention;

fig. 2 is a circuit diagram of the audio decoding chip of the present invention;

fig. 3 is a circuit diagram of the video switcher of the present invention;

fig. 4 is a circuit diagram of the MIPI conversion chip of the present invention;

fig. 5 is a circuit diagram of a VGA conversion chip of the present invention;

fig. 6 is a circuit diagram of an amplifier circuit according to the present invention.

Detailed Description

The control system of the face recognition court trial interaction terminal shown in fig. 1-6 comprises a tablet computer and a control unit, wherein the control unit comprises a control chip, a function key unit, a voice unit and an image unit;

The high definition camera is connected with the VGA interface, and the 3D structure optical module is connected with the HDMI interface.

As shown in fig. 6, the amplifier circuit is an audio signal amplifier circuit including a transistor Q7104 and its peripheral circuits.

The tablet personal computer and the control chip are communicated through the USB.

A voice unit: the method is used for semantic understanding, generating a voice recognition record and collecting intensity, tone and frequency signals.

An image unit: the method is used for combining spatial information and color information through a complex algorithm to generate a three-dimensional image acquisition signal with the spatial information for an information set acquired by a 2D color picture and a 3D structure optical module shot by a high-definition camera.

A control chip: receiving a tablet computer control authority signal and confirming the authority of a key group; and awakening the image processing chip to acquire the three-dimensional image signal according to a preset time interval or a preset voice signal threshold.

When court trial live broadcast starts, 3D face recognition signals collected by the high-definition camera and the 3D structure optical module are input into the tablet personal computer through the image processing chip and the control chip, and after comparing identity information registered in a court on the cloud, the tablet personal computer sets different authorities (including a judge authority, a bookmarker authority and an original reported authority) according to identity roles of different login personnel.

In the court trial process, the voice processing device and the high-definition camera are in working states, the control chip activates the 3D structure optical module through the image processing chip according to a preset time period or when a sound characteristic signal transmitted by the voice processing device exceeds a set threshold value, and a three-dimensional image signal of a face of a user is collected; and transmitting the three-dimensional image signals to a tablet personal computer through a network, and transmitting the three-dimensional image signals to a court server on the cloud through the tablet personal computer to perform big data emotion analysis.

Claims

1. A control system of a face recognition court trial interactive terminal is characterized in that: the control unit comprises a control chip, a function key unit, a voice unit and an image unit;

2. The control system of the face recognition court trial interaction terminal of claim 1, wherein: the image processing chip comprises a VGA conversion chip, an MIPI conversion chip and a video conversion switch, the data input end of the VGA conversion chip is connected with a VGA interface, the data output end of the VGA conversion chip is connected with the video conversion switch, the input end of the video conversion switch is also connected with an HDMI interface, the output end of the video conversion switch is connected with the MIPI conversion chip, and the MIPI conversion chip is connected with the control chip.

3. The control system of the face recognition court trial interaction terminal of claim 2, wherein: the model of the VGA conversion chip is MS9282, the model of the MIPI conversion chip is LT6911C, and the model of the video conversion switch is LT8631 UX.

4. The control system of the face recognition court trial interaction terminal of claim 1, wherein: the intelligent control system is characterized by further comprising a 4G module and a WIFI module, wherein the 4G module and the WIFI module are connected with the control chip.

5. The control system of the face recognition court trial interaction terminal of claim 4, wherein: the display driving interface is used for driving the external display screen after the MIPI interface is converted into the LVDS interface.

6. The control system of the face recognition court trial interaction terminal of claim 5, wherein: the voice processing device comprises an audio decoding chip, the audio input unit comprises an MIC interface, the MIC interface is connected with the audio decoding chip through an amplifying circuit, the audio decoding chip is connected with the control chip, the MIC array is connected with the audio decoding chip through an I2S bus, and the audio decoding chip is ES8316 in type.

7. The control system of the face recognition court trial interaction terminal of claim 6, wherein: the model of the 4G module is SIM7600CE, and the model of the WIFI module is AP 6212A.