Product scheme of gun management law enforcement recorder based on active RFID

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1. Overview of requirements:

The security group has armed escort guns xxxx, and lacks real-time supervision (location and video) of mobile guns on duty outside. Once guns are lost or lost, they cannot be located and dealt with immediately. Real-time supervision of mobile guns needs to be solved.

Paste an active RFID tag on the back of the gun, add an RFID read-write module to the law enforcement recorder, pair them with the tags on the gun one by one, and locate the gun synchronously through the location of the law enforcement recorder. Once the gun is separated from the law enforcement recorder, it cannot be read When information, the 4G law enforcement instrument sends the alarm to the background management platform through the 4G wireless network, the platform starts the alarm linkage operation, and provides audio alarm, snapshot, video, etc. on the PC side, and can also start video-snapshot on the side of the law enforcement recorder device Wait for operations, and obtain the location information of GPS/Beidou positioning through the law enforcement recorder. At the same time, the RFID tags of the guns cooperate with the management of the gun warehouse to carry out the read-write management of the warehouse.

1) The location function of the law enforcement recorder (Beidou/GPS dual mode + LBS+WIFI positioning), which can determine the position of the gun through the location of the law enforcement recorder.

2) The law enforcement recorder has a landing function and binds with personnel to form a person<—> law enforcement recorder<—> guns correspond to each other, and one gun is equipped with a law enforcement recorder.

The law enforcement recorder equipment that supports RFID tag reading required in the project, the 4G full Netcom high-listed law enforcement recorder realized by the mobile phone chip, the built-in 3G/4G full Netcom wireless communication network, without the need for an external independent 4G module, The whole machine is lighter, lower power consumption, built-in 5 million pixel night vision HD camera, and can support various external USB/UVC micro (pinholes, buttons, etc., YUV/MJPEG/H.264) cameras, 720P/1080P dual Streaming video + wireless real-time image transmission, GPS/Beidou positioning, Bluetooth two-way intercom-PTT group call, unified access to the large-scale network video monitoring platform SmartEye with car NVR, field capture, GPS locator, etc., so that leaders can sit in the center of the town. Command all directions.

The main function:

1) 3G/4G real-time image transmission

2) Local recording

3) Intercom and group call

4) GPS/Beidou positioning

5) High-definition photo capture and upload

6) RFID detects whether the gun has left the manager and alarms

2. Hardware specifications:

project

technical parameter

system

MTK high-performance processor 64-bit 4-core 1.3GHz, 1GB RAM/32GB ROM, Android 5.1

Display screen

2.0 inch TFT LCD, capacitive touch color display, 320×240

Field of view

The horizontal field of view of the camera lens>125°, the focus is 0.5m~infinity

Video input

Host built-in camera resolution 1920*1080

Video recording

Color video image, the video resolution is 1920×1080, the host can choose 1280×720 and 720×480 resolution; the video frame rate is 30 frames/s

Video format

mkv

Photo format

The maximum output pixel number ≥ 5 million, ultra-clear pixels.

The actual effective pixel number is 2880*1728, saved in JPG file format.

Sensing type

5MP CMOS, 15m night vision

shutter

Electronic shutter

Infrared night vision

Support infrared night vision lamp, filter switch. Manually switch between white light and night vision mode;

High-power infrared lamp, aluminum base plate for heat dissipation.

Night shot

LED fill light

position

Built-in GPS + Beidou

4G wireless transmission

Built-in 4G 5 mode 10 frequency (TDD, FDD), TD, WCDMA

WIFI function

The product has built-in WIFI function and can support 802.11b/g/n/ac at the same time

But the wifi bandwidth is not enough to transmit video, it can only be used to establish a connection to the network

Data interface

micro USB 2.0, Bluetooth 4.0

NFC

N/A, customized extension

RFID

Custom extension

charging method

Support dedicated adapter, USB interface charging and car charging, DC 5V, 1000mA

Battery

Removable polymer lithium battery, 3600mAh

Storage media capacity

32GB built-in storage capacity; support built-in storage expansion up to 64GB

Dimensions

100mm×60mm×28mm (length×width×height)

weight

162g

Protection performance

High-strength protective shell 3 meters drop-proof, suitable for working environment from -20℃ to 60℃

Enclosure rating

Meet the requirements of IP67 protection level in GB4208-2008

3. Hardware interface description

3.1, 4G image transmission law enforcement recorder

  Schematic:

The intercom interface below can be expanded with many interfaces, such as TTL serial port, which can be used for data collection; it can also be expanded with wired headsets.

The RFID card reader will also be expanded by using the interface here, requiring the RFID tag on the gun to be an active tag.

3.2RFID:

1

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