CN214413047U

CN214413047U - Police handheld code detection instrument

Info

Publication number: CN214413047U
Application number: CN202120507592.1U
Authority: CN
Inventors: 邓刚; 刘正蓝; 胡凯渊
Original assignee: Wuxi Shentan Electronic Technology Co ltd
Current assignee: Wuxi Shentan Electronic Technology Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-10-15
Anticipated expiration: 2031-03-10

Abstract

The utility model relates to a police is with handheld code detection appearance. The utility model discloses a main control unit, LTE baseband module, the radio frequency of encapsulation in the hand-held type casing enlarge module, power management unit and lithium cell. The LTE baseband module is in signal connection with the main control unit, is positioned below the main control unit and is used for transmitting an LTE baseband signal; the LTE baseband signal is amplified by a radio frequency amplification module below the main control unit, transmitted by an antenna and returned to a mobile phone body code of a target object by the antenna; the power management unit is used for switching an external power supply and supplying power to the battery, and simultaneously charges the battery, and the lithium battery provides a standby function and is positioned in the handheld shell. The utility model discloses a LTE single mode collection module to single LTE collection module integrated level is higher, and the volume is littleer, and the consumption is lower. Meanwhile, the main control board improves the hardware integration level, and adopts a vertical stacking mode, so that the size of the main control board is reduced by about 70%, and the equipment can be held by hands.

Description

Police handheld code detection instrument

Technical Field

The utility model belongs to the technical field of special type communication, a police is with handheld code detection appearance based on smallcell technique is related to.

Background

The detection code is a means commonly used in the case detecting and handling process of public security, the common squatting and guarding of the public security are completed by replacing manpower at present, and for the mode, a large amount of manpower, material resources and financial resources are consumed, the detection code is a huge test for the police force of the public security, and the detection code is very unfavorable for the life and health of people.

At present, a mobile phone becomes a standard matching tool in the life of people, and mastering dynamic information of the mobile phone is equivalent to mastering behavior tracks of people, so that from the perspective of communication technology, public security special communication equipment is realized based on the SmallCell technology, and whether a target person appears or not can be rapidly and invisibly obtained conveniently.

In addition, most of the existing code detecting devices are large in size and weight, are limited by the problem of power supply and are not suitable for active movement, and under the condition of the scene, the execution of case tasks is greatly limited.

Disclosure of Invention

The utility model discloses to prior art's not enough, provide a police handheld code detection equipment.

The utility model discloses a main control unit, LTE baseband module, the radio frequency of encapsulation in the hand-held type casing enlarge module, power management unit and lithium cell.

The LTE baseband module is in signal connection with the main control unit, is positioned below the main control unit and is used for transmitting an LTE baseband signal;

the LTE baseband signal is amplified by a radio frequency amplification module below the main control unit, transmitted by an antenna and returned to a mobile phone body code of a target object by the antenna;

the power management unit is used for switching an external power supply and supplying power to the battery, and simultaneously charges the battery, and the lithium battery provides a standby function and is positioned in the handheld shell.

Preferably, the LTE baseband module is implemented by a smallcall baseband module, and the smallcall baseband module is a transit wireless communication module based on the intel T2000.

Preferably, the power management unit comprises a lithium battery charging and discharging management unit, a system power output control unit and a battery electric quantity state indicating unit, wherein the lithium battery charging and discharging management unit comprises an external power input interface and a lithium battery input interface, and the lithium battery charging and discharging management unit is realized by adopting a SY6912A chip; and the system power supply output control unit receives the output from the lithium battery charging and discharging management unit and provides power supply for the LTE baseband module.

Preferably, the main control unit adopts an ARM core processing module unit, and the core board is MYC-Y6ULG2-256N 256D-50-I.

Preferably, the main control unit further includes a wireless transmission unit and an ethernet transmission unit, the signal interface of the LTE baseband module is connected with the wireless transmission unit, and the wireless transmission unit is implemented by using an NEO-M8N chip; the Ethernet transmission unit comprises a network transformer, an Ethernet transmission chip and an RJ45 interface, wherein the network transformer receives signals from the LTE baseband module, the model of the Ethernet transmission chip is LAN8720A, and the Ethernet transmission chip communicates with the main control unit through the RMII interface to transmit data.

Preferably, the wireless transmission unit further comprises a bluetooth module, which is implemented by an HC06 chip.

Preferably, the radio frequency amplification unit comprises a switch and a radio frequency amplifier, and the LTE baseband signal is sent to the switch and then input to the radio frequency amplifier after passing through the switch; the radio frequency amplifier is used for amplifying baseband signals, wherein the selection type of the switch is FDMA1032CZ, and the selection type of the radio frequency amplifier is MZ 25332.

The utility model has the advantages that:

the utility model discloses a LTE single mode collection module to single LTE collection module integrated level is higher, and the volume is littleer, and the consumption is lower. The main control board improves the hardware integration level, and the main control board is reduced by about 70% by adopting a vertical stacking mode, and the design enables the equipment to be suitable for being held by hands.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a circuit diagram of a lithium battery charging and discharging management unit;

FIG. 3 is a circuit diagram of a system power output control unit;

FIG. 4 is a circuit diagram of a battery state of charge indicating unit;

FIG. 5 is a circuit diagram of a wireless transmission unit;

FIG. 6 is a circuit diagram of a Bluetooth module;

fig. 7 and 8 are circuit diagrams of an ethernet transmission unit;

FIG. 9 is a circuit diagram of a switch;

fig. 10 is a circuit diagram of a radio frequency amplifier.

Detailed Description

As shown in fig. 1, the present embodiment includes a main control unit, an LTE baseband module, a radio frequency amplification module, a power management unit, and a lithium battery, which are packaged in a handheld housing.

The LTE baseband module is in signal connection with the main control unit and is positioned below the main control unit, so that the structure is compact, and the LTE baseband module is used for transmitting LTE baseband signals;

the LTE baseband signal is amplified by a radio frequency amplification module (which is positioned at the same layer as the LTE baseband module) below the main control unit, then is transmitted by an antenna, and is transmitted back to a mobile phone body code of a target object by the antenna;

The LTE baseband module is realized by a SmallCell baseband module, and is based on a 3GPP communication protocol to perform handshake information interaction with a user mobile phone to acquire a mobile phone body code; the radio frequency amplification module is used for amplifying the power of the radio frequency signal of the baseband module and then radiating the radio frequency signal through the antenna, so that the radio frequency signal is covered to a longer distance, and the acquisition effect is ensured. The main control unit is used for controlling, receiving and analyzing the information collected by the baseband module, making corresponding judgment and carrying out corresponding short message pushing alarm processing.

In the embodiment, a single signal acquisition module is mainly adopted and can be divided into target acquisition and non-target acquisition, in a target acquisition mode, after the system is started, the working modes (TDD and FDD) of the acquisition module are selected, the handheld code detector automatically scans the network to select the optimal frequency point of the system in the environment, then the signal is transmitted through the radio frequency antenna, the passing mobile phone equipment preferentially selects the network, then the target mobile phone returns to the public network, the purpose of non-inductive acquisition is achieved, and finally the target number is prominently prompted to bid. In a non-target acquisition mode, a polling mechanism is started after the system is started, the system automatically switches the frequency points in the systems and then automatically switches the other system, and polls the frequency points in the other system to acquire the mobile phone signals of the fixed population.

As shown in fig. 2, the battery charge/discharge management unit in the present embodiment: the battery is composed of a P5 battery and a P6 battery, the battery is switched with an external input power supply, the P5 battery is an external power supply input, the P6 battery is a lithium battery interface, the Vout battery is a power supply output and provides the input of a main control power supply; u10 is a charge and discharge management chip (SY 6912A); d9 is the charge state pilot lamp, realizes the selection to the charge and discharge management and the external power supply of lithium cell through the charge and discharge management chip.

As shown in fig. 3, the system power output control unit: the P7 is a power supply interface of the baseband module, the LTE _ POW is a power supply output control signal of the baseband module, the POW is a power supply output control signal of the system, the U11 is a DC/DC conversion chip (TPS 54540), VCC3V3 output is realized through the chip, a power supply signal is supplied to the system, the soft touch key SW2 is a key for starting and stopping the equipment, and the delayed conduction and starting detection functions of the soft touch key SW2 are realized through the triode Q12.

As shown in fig. 4, the battery state of charge indicating unit: the ADC signal is a battery electric quantity detection signal, the charge state of the current lithium battery is judged, D10 is battery electric quantity state display, and U7 is an LDO chip (XC 6209B332 MR) and supplies power for an RTC in the chip.

As shown in fig. 5, the wireless transmission unit: u2 is GPS outsourcing module (NEO-M8N), J1 is GPS active antenna interface, and J2 is GPS passive antenna interface. P1 is the signal interface of the baseband module, D7 is the GPS status indicator light.

As shown in fig. 6, U3 is a bluetooth outsourcing module (HC 06), and D8 is a bluetooth status indicator lamp.

As shown in fig. 7 and 8, the ethernet transmission unit: (fig. 7) U6 is a network transformer. P2 is the ethernet interface of the baseband module, and the baseband module is connected to the network transformer through P2. (fig. 8) the ETH1 interface signal is a CPU interface signal. D1 is an ethernet status indicator light. U12 is PHY (LAN 8720A) chip, and communicates with CPU via RMII interface to transmit data. WLAN1 is RJ45 interface (HR 911105A) with integrated isolation transformer, wherein the CPU is ARM core processing module unit (core board (MYC-Y6ULG2-256N 256D-50-I).

As shown in fig. 9, the selector switch (fig. 9): q1 is a high-speed MOS radio frequency switch IC (FDMA1032CZ) for controlling the switching of the radio frequency amplification unit, H _ PA is a control signal provided by the baseband module, and the control signal is driven by Q1 to output PA _ ENABLE to control the radio frequency amplification unit;

as shown in fig. 10, the radio frequency amplifier: u4 is a radio frequency amplification IC (MZ25332) for amplifying a radio frequency signal input by J4 and outputting the amplified radio frequency signal by J1, the radio frequency signal in this embodiment is generated by an LTE baseband module, and the LTE baseband module is specifically realized by a smallCell baseband module, which is a Transced wireless communication module customized based on the intel T2000 chip set scheme.

Claims

1. The utility model provides a police is with handheld code appearance of detecting, includes main control unit, LTE baseband module, the radio frequency amplification module of encapsulation in the hand-held type casing, power management unit and lithium cell, its characterized in that:

2. The police handheld code detector according to claim 1, characterized in that: the LTE baseband module is realized by a SmallCell baseband module, and the SmallCell baseband module is a Transcenter wireless communication module based on the inte T2000.

3. The police handheld code detector according to claim 1, characterized in that: the power management unit comprises a lithium battery charging and discharging management unit, a system power output control unit and a battery electric quantity state indicating unit, wherein the lithium battery charging and discharging management unit comprises an external power input interface and a lithium battery input interface, and the lithium battery charging and discharging management unit is realized by adopting a SY6912A chip; and the system power supply output control unit receives the output from the lithium battery charging and discharging management unit and provides power supply for the LTE baseband module.

4. The police handheld code detector according to claim 1, characterized in that: the main control unit adopts an ARM core processing module unit, and the core board is MYC-Y6ULG2-256N256D-50-I in type selection.

5. The police handheld code detector according to claim 1, characterized in that: the main control unit further comprises a wireless transmission unit and an Ethernet transmission unit, wherein a signal interface of the LTE baseband module is connected with the wireless transmission unit, and the wireless transmission unit is realized by adopting an NEO-M8N chip; the Ethernet transmission unit comprises a network transformer, an Ethernet transmission chip and an RJ45 interface, wherein the network transformer receives signals from the LTE baseband module, the model of the Ethernet transmission chip is LAN8720A, and the Ethernet transmission chip communicates with the main control unit through the RMII interface to transmit data.

6. The police handheld code detector according to claim 5, characterized in that: the wireless transmission unit also comprises a Bluetooth module which is realized by an HC06 chip.

7. The police handheld code detector according to claim 1, characterized in that: the radio frequency amplification unit comprises a switch and a radio frequency amplifier, and an LTE baseband signal is sent to the switch and is input to the radio frequency amplifier after passing through the switch; the radio frequency amplifier is used for amplifying baseband signals, wherein the selection type of the switch is FDMA1032CZ, and the selection type of the radio frequency amplifier is MZ 25332.