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1. System introduction
The intelligent prison personnel positioning system adopts the most advanced WSN sensor network technology in the world, and it can safely and accurately identify and distinguish the detainees and managers in the prison, which is to combine the personal information in the management system with everyone in reality. One-to-one corresponding intelligent prison management system. This system has realized the informatization of prison management in a real sense, and is an effective way to realize “requiring police force from science and technology”.
The system enables managers to grasp the detailed information and number of detainees in each controlled area of the prison in real time, effectively prevent detainees from escaping, reduce the chance of criminals forming parties and making troubles, secretly monitor high-risk detainees, and track down and follow up on violent incidents. If it happens, the personal safety of managers and detainees is guaranteed to the utmost extent. In addition, the system can also automatically count the number of people in the designated area and the information of police officers on duty in the surrounding area, and dynamically monitor outgoing personnel throughout the entire process, which greatly reduces the work intensity of prison managers and can quickly locate the police officers on duty in the event of an emergency. Location.
System working diagram
2. Main indicators of the system
The wristband is made of multi-performance SS plastic, and a variety of colors are defined to distinguish prisoners’ attributes.
Prevent violent disassembly, built-in circuit design, such as shortening or violent damage, the wristband will send an alarm.
Fall-proof, waterproof, fire-proof, and anti-static.
Low energy consumption design, wrist strap battery life: 1-3 years.
Signal transmission frequency: 433MHz, DSSS communication mode, strong penetration and long transmission distance.
Automatically register the base station, determine the heartbeat period and adjust the power according to the base station strategy.
Heartbeat cycle: 2s-1min adjustable (different sensitive areas, use different heartbeat cycles)
The communication distance between the wristband and the locator: 1-100m adjustable (adjustable according to the density of the wristband and the distance from the locator).
The number of wristbands received by a single locator in the same cycle: 500 (cycle 1min).
With energy detection and reporting functions, battery low-voltage alarms, and actively report low-voltage information when the battery capacity is low
AES128 encryption.
The positioning base station adopts dual SOC working mode, and the communication is stable and reliable.
3. Positioning alarm function
Real-time monitoring of personnel location
1) Personnel location information: real-time display of prisoners and warning locations on the electronic map;
2) Personnel movement track: Real-time display of one or more persons movement track through the electronic map;
3) Tracking designated personnel: The map automatically switches with the movement of the label, and the current status of the label can be seen by moving the mouse on the label;
4) Personnel alarm status information: Display the alarm status of personnel through different colors and shapes on the electronic map.
Alarm function
1) Button alarm: The prison guard has an alarm button on the wrist. Once an emergency occurs, you can press the alarm button. The monitoring center positioning system will receive the alarm information and alarm location in time, and quickly find the scene of the incident;
2) Wristband damage alarm: When the wristband is worn on the prisoner’s hand, the prisoner cannot take it off by himself, and only cuts it. If the prisoner breaks the wristband, the tag will continuously send a cutting alarm message to the system;
3) Illegal area alarm
a. Cross-border alarm: Some areas are restricted areas, and an alarm will be issued if tags enter without permission, or some prisoners cannot leave a certain area, and an alarm will be issued once they leave;
b. Entry and exit alarm: When entering and exiting certain gateways, which tags can pass through can be set in advance, and an alarm message will be issued when tags that do not meet the requirements are entered and exited;
c. Alarm inconsistent with the management information system: The prisoner has set the room number in the system. Once the prisoner enters the wrong room, an alarm will be sent out in time.
4) Illegal gathering alarm: At the designated location, the system can set the maximum allowable number of persons. Once the number exceeds the preset number, an alarm message will be issued.
5) Signal loss alarm: There are many factors for the disappearance of the label (such as the battery is dead or damaged, the label crosses the signal coverage area, etc.), you can set the disappearance alarm condition and alarm level of the specified label. If the label disappears, it will be triggered The corresponding alarm;
6) Low battery voltage alarm: You can set the minimum battery power limit in the system. Once the tag battery is below this limit, an alarm message will be issued;
7) Other alarms: add different alarm methods according to requirements
a. Failure to follow the prescribed route to alarm: specify the walking track of a certain tag during a certain period of time, once the tag is found to deviate from the specified walking track for a certain period of time, an alarm message will be issued;
b. Alarm without accompanying personnel: Bind the prisoner tag and the police tag, and bind one-to-one or many-to-many. When the walking track of the prisoner tag is inconsistent with the walking track of the police tag, an alarm message will be issued for a certain period of time.
4. Management function
1) Label management
a) Label issuance: bind the information of the designated person to the tag worn by the person, and the tag displayed in the system represents the person wearing the tag.
b) Label replacement battery
c) Personnel replacement label
d) Label grouping and classification: Labels can be grouped and classified according to actual conditions.
e) Label configuration: such as positioning mode, safety mode, start and stop configuration.
f) Alarm setting: Set different alarm conditions for different tags.
2) Information management
a) Prisoner information setting: The information of detainees can be set and managed in the system.
b) Police information setting: The police information can be set and managed in the system.
c) On-off duty setting: A off-duty location point can be set, once the staff tag is placed at the location point for a certain period of time, it will be considered off-duty.
3) Network management
Positioning base station management function: It can monitor the operating status of hundreds of positioning base stations at the same time. When the positioning base station network is interrupted, fault alarm information will be issued in time, and the positioning base stations can be configured in batches.
4) System management
User Management: Various user permissions can be set. After users log in to the system, they can perform corresponding operations and browse content that meets the permissions according to their own permissions.
Log management: Provide detailed log generation, storage, retrieval and other functions.
Statistical report
1) Label warning records-view all labels or all warning records of designated labels;
2) View the label report-view the important alarms of the label, the statistics of the number of times of entering and exiting the area and the stay time;
3) Operation history-view the user’s operation history;
4) Count the number of executions of various tasks, the work situation and idle time of a single person, and the peak work period of each position every day;
5) Perform statistical analysis on the time and area of each alarm event;
6) Analyze the status of the label to provide a list and location of idle police forces for the reference of the leaders to use the police, and the analysis indicators are set by the user;
7) According to user-defined rules, the number of police patrols, time periods and intervals are counted by time period.
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