Simulated courtroom layout

The functional areas include the judge seat area, clerk area, physical display area, parties area, student listening area, trial information announcement area, video and audio display area in the courtroom, equipment placement area, etc. The recommended indoor area is not less than 200 square meters.

Simulated courtroom layout plan

Simulated courtroom rendering

System composition

The informationization construction of simulated court mainly includes hardware environment construction, system application software, backend management and other system construction. At the same time, it also involves related content such as courtroom information application, courtroom information security and management.

Hardware environment construction

(1) The collection of live trial information, which refers to the comprehensive audio and video recording of the trial process, is achieved through the use of cameras installed in the digital courtroom to capture images. The speech system collects the audio of the trial speech and displays it on the large screen display equipment in the courtroom through selection switching, image synthesis, and other means.

(2) The text information collected during the trial is mainly based on the trial transcript, which is quickly recorded by the court clerk.

(3) Collection of courtroom evidence information, including submitted audio evidence, which is recorded by the courtroom video system while being played by the courtroom audio equipment. The collection of image information includes scanned copies of paper evidence files, images of physical evidence, photographed image evidence, and criminal scientific analysis diagrams.

(4) Evidence display: The collected live information, textual information, and various types of evidence information need to be displayed and played in court according to the situation of the case, ensuring the right to know of the parties involved and court observers.

(5) Trial host: The trial host is the core equipment in the digital courtroom, which includes high-definition camera capture, trial speech collection, audio and video evidence collection, high-definition segmentation and image synthesis, courtroom audio and video switching processing and playback, voice incentive image linkage, high-definition audio and video encoding, remote audio and video decoding, digital audio processing, and centralized control of the trial. All trial related audio and video information is collected, switched, processed, encoded, and played through the trial host, and the trial process is automatically controlled.

(6) Environmental construction: Referring to the highest legal construction standards, the facilities, equipment, props, decoration, etc. of the simulated trial venue are complete, creating a solemn and serious environment with fully functional hardware facilities.

System application software

The system application software system includes a clerk application client with core management functions, as well as corresponding clients that provide judges and parties with record and electronic evidence sharing. Another core application system in simulated court is the simulated teaching and training system, which is mainly used for comprehensive simulation training of legal practice.

(1) The court clerk trial application client includes various application requirements such as transcript shorthand, transcript proofreading, trial control, remote call connection, electronic evidence display, court discipline broadcast, etc. It is responsible for distributing transcript information and electronic evidence information to the judge client and party client, as well as receiving feedback.

(2) The judge application client should provide judges with relevant content information and application functions during the trial process, including real-time record viewing, record annotation, party record annotation viewing, viewing historical records of the case, viewing records of other related cases, electronic evidence preview, evidence display control, evidence annotation, party evidence annotation viewing, trial outline, regulatory inquiry, live streaming monitoring in court, trial guidance and other functions.

(3) The client of the parties involved can provide relevant content information and application functions during the court trial to both parties, including real-time record viewing, record annotation, electronic evidence viewing and annotation, and other trial related information. The annotations of the parties' transcripts will also become the content of the clerk's transcript editing, and can be the focus of the clerk's proofreading of relevant transcript content during transcript proofreading.

(4) The transcription system for recorded speech should be able to achieve real-time transcription of continuous Mandarin speech, and provide post-processing and phonetic synchronization alignment capabilities for transcribed text.

(5) Electronic signature: After verifying the trial transcript, the parties can use a handwriting board to perform on-site electronic signature. The system should be able to automatically enlarge and reduce the signature proportionally.

Simulated teaching and training system, used for law school teachers and students to conduct simulated trial training, realizing case simulation training, case trial role simulation, trial process guidance, practical case training, etc.

Backend management system

(1) The trial resource management system fully realizes the networked information sharing application of trial record files and becomes a part of judicial trial data files.

(2) Streaming media services can provide live broadcasts of court proceedings through unicast, multicast, and other methods, while also being connected to a centralized storage system to store real-time audio and video data of the court proceedings.

(3) The resource storage system generally adopts the connection method between disk array storage system and servers and other hosts, and the storage hard disk technology capacity is configured according to the court's business volume.

(4) Servers, simulated courtroom business applications, client applications, media resource management, streaming media services, etc. all require servers to provide services in order to truly achieve business functions.

System configuration plan

Basic mock court

1. Collection of audio and video information

Four cameras are configured for the shooting of judge seat, public prosecution seat, defense seat, suspect seat and audience seat. One microphone is configured for the judge seat, the public prosecution seat, the defence seat, the clerk seat and the suspect seat respectively.

2. Evidence Display

(1) Configure a secretary staff workstation and use the local area network case information management system to centrally manage and display evidence exchanged before court and converted into electronic files. For those who have not opened a local area network, single machine management and display of electronic evidence of individual cases;

(2) Configure courtroom display devices such as projectors and screens (televisions);

(3) Set up a high-definition video distributor in the clerk's seat to synchronously distribute the evidence screen of the clerk's client to the judge and the parties' desktop displays.

3. Configure one simple trial host for audio and video management.

(1) The host supports mixing and processing of various sounds during the trial process;

(2) Supports disc burning.

(3) Support voice incentives.

(4) Support switching of courtroom screen output. It can be output for live court hearings, and can be digitally encoded for online live streaming and storage.

(5) Supports MPEG-2, MPEG-4 (H.264/AVC) or domestic standard AVS encoding formats;

(6) Support remote audio and video applications such as remote testimony and court observation.

4. Trial management

(1) Maintain and manage basic case information (including case number, cause of action, parties, undertakers, members of the collegiate bench, etc.) and trial scheduling information.

(2) Capable of managing the display and output of local trial footage and remote cross examination (interrogation, trial) footage, and displaying them on various display devices inside and outside the court as needed, providing services for live streaming, on-demand, remote observation and other applications of the trial;

(3) Capable of live streaming control, flexible selection of various image screens and evidence display screens for live streaming.

(4) Capable of managing the transcript information, cross examination information, and audio and video information generated during the trial, and synchronously outputting them to the case information management system for application.

5. Sound amplification

(1) Deploy speakers within the courtroom to create a uniform sound field, ensuring that each seat can clearly hear the content of the trial speech and audio evidence.

6. Centralized control

(1) Support the control of the trial process;

(2) Support trial video recording and live streaming control;

Standard mock court

1. Collection of audio and video information

5 cameras are configured for shooting the judge seat, public prosecution seat, defense seat, suspect seat and audience seat. The judge seat is equipped with three microphones, the public prosecution seat and the defense seat are equipped with one microphone, the clerk seat is equipped with one microphone, and the witness seat and the suspect seat are equipped with one microphone. Support voice stimulation function.

2. Evidence Display

(1) Configure the computer and use the local area network case information management system to centrally manage and display electronic evidence exchanged before the trial;

(2) Configure physical exhibition booths for displaying physical evidence;

(3) Configure display devices such as LED screens, rear projectors, televisions, electronic whiteboards, and projectors;

(4) Configure judges, clerks, and parties' workstations to install corresponding client software for real-time viewing of case information, trial information, evidence display information, transcript information, etc;

(5) LAN interface is set in the clerk and judge seat, and HDMI interface and Internet interface are set in the clerk seat.

3. Trial transcript

(1) Configure voice transcription systems, printers, and other devices to support the input and printing of trial information;

(2) Support the synchronization of time stamps between court transcripts and audio and video recordings of court proceedings;

(3) Support the function of court review. Missing text can be marked, and the marking can be used to locate the trial audio and video for supplementary recording or correction;

(4) The proofread trial transcript will automatically enter the case information management system.

4. Audio and video management

Configure one standard type court trial host.

(1) Support the mixing and processing of various sounds during the trial process;

(2) Support multi screen synthesis. Combine signals from multiple cameras and evidence display signals into one image output, with a resolution of not less than 1920x1080;

(3) Supports disc burning. Real time recording of trial information (including trial videos, evidence, trial transcripts, etc.) onto a single or multiple screen CD for archiving purposes. It should have security measures such as disc sealing, anti erasure, anti tampering, and anti editing;

(4) Real time recording of trial information (including evidence display information) on one or multiple screen CDs. It should have security measures such as disc sealing, anti erasure, anti tampering, and anti editing;

(5) Support voice incentives. The camera automatically tracks the spokesperson and outputs the spokesperson's image to the display device, switching to the main composite image;

(6) Support switching of courtroom screen output. Can be output on display devices inside the courtroom, can be output on display devices outside the courtroom, can be output for live court hearings, can be transmitted to the image center through analog signals, can be digitally encoded for online live streaming and storage, and so on;

(7) Supports MPEG-2, MPEG-4 (H.264/AVC) or domestic standard AVS encoding formats;

(8) Support remote audio and video applications such as remote testimony and court observation.

5. Trial management

(1) Maintain and manage basic case information (including case number, cause of action, parties, undertakers, members of the collegiate bench, etc.) and trial scheduling information. It has functions such as permission division, identity recognition, and logging;

(2) Capable of managing the display and output of local trial footage and remote cross examination (interrogation, trial) footage, and displaying them on various display devices both inside and outside the courtroom as needed. Alternatively, it can be transmitted to the image processing center to provide services for applications such as live court broadcasts, on-demand streaming, and remote observation;

(3) Capable of outputting textual information, continuous time information, courtroom temperature and humidity information, etc. in the trial video;

(4) Capable of live streaming control, flexibly selecting various image screens, evidence display screens, or composite screens for live streaming. Ability to adjust the stream based on network bandwidth and court attention;

(5) Capable of managing the transcript information, cross examination information, and audio and video information generated during the trial, and synchronously outputting them to the case information management system for application.

6. Sound amplification

(1) Create a uniform sound field in the courtroom to ensure that each seat can clearly hear the content of the trial speech and audio evidence;

(2) The judge can control the speech. The judge's seat has priority in speaking and can control the speaking time of both the prosecution and the defense;

(3) Provide controllable light sources that can be partitioned according to the needs of the trial process and evidence presentation.

7. Centralized control

(1) Support one click control of trial equipment;

(2) Support the control of the trial process;

(3) Support trial video recording and live streaming control;

(4) Support device malfunction warning.

Comprehensive Simulated Court

1. Collection of audio and video information

Five high-definition cameras are configured for the shooting of judge seats, public prosecution seats, defense seats, suspect seats and audience seats. Lift one physical camera above the secretary for close-up shooting of physical evidence. There are 5 in the judge seat, 2 in the public prosecution seat and the defense seat, 2 in the clerk seat, and 1 microphone in the witness seat and the suspect seat. Support voice stimulation function. Configure 2 sets of wireless microphones for teachers to give lectures and speeches.

2. Evidence Display

(1) Configure the computer and use the local area network case information management system to centrally manage and display electronic evidence exchanged before the trial;

(2) Configure equipment such as tape recorders, video recorders, VCD/DVD players, etc. for playing audio and video evidence;

(3) Configure physical exhibition booths for displaying physical evidence;

(4) Configure display devices such as LED screens, rear projectors, televisions, electronic whiteboards, and projectors;

(5) Configure judges, clerks, and parties' workstations to install corresponding client software for real-time viewing of case information, trial information, evidence display information, transcript information, etc;

(6) Configure electronic whiteboards or touch screens to achieve the function of leaving marks on quality certificates;

(7) LAN interface shall be set in the clerk and judge seats, and VGA interface and Internet interface shall be set in the clerk and both parties' seats;

(8) Various display devices are controlled by clerks or control personnel through a centralized control system.

3. Trial transcript

(1) Configure a speech recognition service system and deploy an intelligent Chinese continuous speech recognition transcription engine on the court server, which can achieve real-time transcription of Mandarin continuous speech and provide post-processing and phonetic synchronization alignment capabilities for transcribed text.

(2) Printers and other devices that support the input and printing of trial information;

(3) Support the synchronization of time stamps between court transcripts and audio and video recordings of court proceedings;

(4) Support the function of court review. Real time tagging of missing text can be performed, and the tagging can be used to locate trial audio and video for supplementary recording or correction;

(5) The proofread trial transcript will automatically enter the case information management system.

4. Electronic signature

Configure an electronic signature system and electronic signature touchpad for parties to fingerprint and sign after the trial, achieving a paperless trial process. Adopting fingerprint modules that comply with the standards of the Ministry of Public Security, capable of collecting standard fingerprint data.

5. Trial Announcement

Configure a trial announcement system and a trial announcement display terminal, with a high-definition display screen of no less than 21.5 inches and a resolution of no less than 1920 * 1080. The display terminal can automatically obtain server case and scheduling data, synchronize case trial status in real time, and automatically display trial data (case name, case number, case introduction, judge, clerk, parties, etc.) and real-time video of ongoing cases; The system supports scrolling display of daily schedule forecast information.

6. Audio and video management

Configure one expandable courtroom host.

(1) Support the mixing and processing of various sounds during the trial process;

(2) Support multi screen synthesis. Combine signals from multiple cameras and evidence display signals into one image output with a resolution of no less than 1920x1080. The main screen can be flexibly set;

(3) Supports disc burning. Real time recording of trial information (including trial videos, evidence, trial transcripts, etc.) onto a single or multiple screen CD for archiving purposes. It should have security measures such as disc sealing, anti erasure, anti tampering, and anti editing;

(4) Support voice incentives. The camera automatically tracks the spokesperson and outputs the spokesperson's image to the display device, switching to the main composite image;

(5) Support switching of courtroom screen output. Can be output on display devices inside the courtroom, can be output on display devices outside the courtroom, can be output for live court hearings, can be transmitted to the image center through analog signals, can be digitally encoded for online live streaming and storage, and so on;

(6) Supports MPEG-2, MPEG-4 (H.264/AVC) or domestic standard AVS encoding formats.

(7) Support the function of vulnerable witnesses speaking in the testimony room and watching live court proceedings;

(8) Support remote audio and video applications such as remote testimony and court observation;

(9) Equipped with video editing tools, after the case is concluded, post editing, cutting, processing, and production of the trial video will be carried out.

7. Trial management

(1) Maintain and manage basic case information (including case number, cause of action, parties, undertakers, members of the collegiate bench, etc.) and trial scheduling information. It has functions such as permission division, identity recognition, and logging;

(2) Capable of managing the display and output of local trial footage and remote cross examination (interrogation, trial) footage, and displaying them on various display devices both inside and outside the courtroom as needed. Alternatively, it can be transmitted to the image processing center to provide services for applications such as live court broadcasts, on-demand streaming, and remote observation;

(3) Capable of outputting textual information, continuous time information, courtroom temperature and humidity information, etc. in the trial video;

(4) Capable of live streaming control, flexibly selecting various image screens, evidence display screens, or composite screens for live streaming. Ability to adjust the stream based on network bandwidth and court attention;

(5) Capable of managing the transcript information, cross examination information, and audio and video information generated during the trial, and synchronously outputting them to the case information management system for application.

8. Sound amplification

(1) Create a uniform sound field in the courtroom to ensure that each seat can clearly hear the content of the trial speech and audio evidence;

(2) It can be voice controlled or controlled by a judge to speak. The judge's seat has priority in speaking and can control the speaking time of both the prosecution and the defense;

(3) Multi segment equalizers, feedback suppressors, voltage limiters, and other devices can be configured to improve the quality of courtroom audio;

(4) Provide controllable light sources that can be partitioned according to the needs of the trial process and evidence presentation.

9. Centralized control

(1) Support one click control of trial equipment;

(2) Support the control of the trial process;

(3) Support centralized control of trial equipment;

(4) Support trial video recording and live streaming control;

(5) Support remote control takeover;

(6) Support device malfunction warning.

10. Multimedia Teaching

Choose a large-sized multimedia teaching all-in-one machine, equipped with OPS, and use a movable floor stand for teachers to write and teach in the front court.

11. Simulated Teaching and Training System

Configure a simulation teaching and training system with administrator, teacher, and student clients, including at least three types of case simulation training cases (criminal, civil, administrative litigation), for students to conduct simulation trial training, realizing case simulation training, case trial angle simulation, trial process guidance, practical case training, etc.