Portable 4G outdoor communication device

Abstract

The utility model discloses a portable 4G outdoor communication device which comprises a communication module, an SIM card unit, a radio frequency unit, a data transmission unit and a power supply unit. The communication module comprises an NL668 module, a reset and startup circuit and a state indicator lamp circuit, and the SIM card unit, the radio frequency unit and the data transmission unit are all connected with the NL668 module; the radio frequency unit comprises a master set unit, a diversity unit and a GNSS antenna unit, wherein the master set unit is responsible for receiving uplink and downlink signals; the diversity unit is responsible for increasing uplink reception of the radio frequency unit, and the GNSS antenna unit is responsible for receiving GPS / BD signals; the power supply unit is used for supplying power to the communication module; according to the utility model, the NL668 module is taken as a core, and the characteristics of high performance, high stability, low time delay and strong interference resistance of the NL668 module are used, so that the industrial pain points, including the demands of large-scale data transmission, low time delay and low power consumption of outdoor equipment, are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 4G outdoor communication device related technical field, concretely is a portable 4G outdoor communication device. BACKGROUND

[0002] 4GLTE is the general term of LTE network system, has the characteristics such as fast communication speed, network spectrum width, communication flexibility, and 4G module refers to hardware loading to specified frequency band, software supports standard LTE protocol, and the general term of one kind of product of high degree of integration modularization of software and hardware. Hardware integrates radio frequency, baseband on a PCB small plate, completes wireless receiving, transmitting, baseband signal processing function, software supports voice dialing, SMS sending and receiving, dial-up networking and other functions.

[0003] In the prior art, 4G module is very extensive in daily use, is used on handheld terminal, security monitoring, commercial display equipment, industrial tablet and image identification equipment etc., and the existing 4G outdoor communication device has the defects of poor high-speed stability, high delay. UTILITY MODEL CONTENT

[0004] To solve the defects in the prior art, the utility model provides a portable 4G outdoor communication device.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] The utility model relates to a portable 4G outdoor communication device, including communication module, SIM card unit, radio frequency unit, data transmission unit and power unit,

[0007] The communication module includes NL668 module, reset and starting circuit and state indicating lamp circuit, and the SIM card unit, radio frequency unit and data transmission unit are all connected with NL668 module,

[0008] The radio frequency unit includes main set unit, diversity unit and GNSS antenna unit, wherein the main set unit is responsible for uplink and downlink signal reception, the diversity unit is responsible for increasing the uplink reception of radio frequency unit, and the GNSS antenna unit is responsible for receiving GPS / BD signal,

[0009] The power unit is used to power the communication module.

[0010] As a preferred technical scheme of the utility model, the state indicating lamp circuit includes triode Q1, LED lamp D1, resistors R1, R2 and R3,

[0011] One end of the resistance R1 is connected with the anode of the LED lamp D1, the other end of the resistance R1 is connected with the voltage VCC, the cathode of the LED lamp D1 is connected with the 3 pin of the triode Q1, one end of the resistance R2 and one end of the resistance R3 are all connected with the 1 pin of the triode Q1, the 2 pin of the triode Q1 and the other end of the resistance R3 are grounded, and the other end of the resistance R2 is connected with the NET_MODE pin of the NL668 module.

[0012] As a preferred technical scheme of the utility model, the reset and starting circuit comprises resistors R4, R5, R6, R7 and R8, a capacitor C1, a diode D2 and a switch K1.

[0013] One end of the switch K1 is grounded, the other end of the switch K1 is connected with one end of the resistance R4 and one end of the resistance R5, the other end of the resistance R4 is connected with the 4G_Reset pin of the NL668 module, the other end of the resistance R5 is connected with one end of the resistance R6, one end of the resistance R7, one end of the resistance R8, the anode of the diode D2 and one end of the capacitor C1, the cathode of the diode and the other end of the resistance R6 are connected with the voltage VCC, the other end of the resistance R7 and the other end of the capacitor C1 are all grounded, and the other end of the resistance R8 is connected with the 4G_POWERKEY pin of the NL668 module.

[0014] As a preferred technical scheme of the utility model, the SIM card unit is provided with a plurality of SIM card seats.

[0015] As a preferred technical scheme of the utility model, the communication module is connected with the main control module of the accessed equipment through the data transmission unit and carries out data transmission.

[0016] The utility model discloses a beneficial effect is:

[0017] The portable 4G outdoor communication device with NL668 module as the core, by the characteristics of high performance, high stability, low delay and strong anti-interference of NL668 module, effectively solves the industry pain points, including a large number of data transmission of outdoor equipment, low delay and low power consumption demand. This scheme is convenient and simple, and can be connected with the equipment through the USB interface protocol, greatly reducing the cost and time of design. The SIM card and main / diversity, GNSS antenna are inserted through the SIM card unit and the radio frequency unit, and then the module board is powered through the 5V to 3.8V power supply unit. After the communication module unit starts, the status indicator light turns on, and the indicator light flashes slowly. The module carries out automatic dialing operation through the set firmware program, and the module indicator light flashes quickly after success. Finally, the data transmission unit provides data service and positioning service for the main control equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0019] Figure 1 is a structural schematic view of a portable 4G outdoor communication device of the present application;

[0020] Figure 2 is a circuit schematic view of a state indicating lamp circuit of the portable 4G outdoor communication device of the present application;

[0021] Figure 3 is a circuit schematic view of a reset and starting circuit of the portable 4G outdoor communication device of the present application;

[0022] Figure 4 is a circuit schematic view of an NL668 module of the portable 4G outdoor communication device of the present application.

[0023] In the drawings: 1, communication module; 101, NL668 module; 102, reset and starting circuit; 103, state indicating lamp circuit; 2, SIM card unit; 3, radio frequency unit; 301, main set unit; 302, diversity unit; 303, GNSS antenna unit; 4, data transmission unit; 5, power supply unit. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and do not limit the present application.

[0025] Embodiment: as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the portable 4G outdoor communication device of the present application comprises a communication module 1, a SIM card unit 2, a radio frequency unit 3, a data transmission unit 4 and a power supply unit 5; the communication module 1 comprises an NL668 module 101, a reset and starting circuit 102 and a state indicating lamp circuit 103, the SIM card unit 2, the radio frequency unit 3 and the data transmission unit 4 are all connected with the NL668 module 101; the radio frequency unit 3 comprises a main set unit 301, a diversity unit 302 and a GNSS antenna unit 303, wherein the main set unit 301 is responsible for receiving uplink and downlink signals; the diversity unit 302 is responsible for increasing uplink reception of the radio frequency unit 3, and the GNSS antenna unit 303 is responsible for receiving GPS / BD signals; the power supply unit 5 is used for supplying power to the communication module 1.

[0026] The utility model discloses a communication module unit 1 including NL668 module, plays the main data transmission function, 1 state indicating lamp, detects the network state of module, a reset and starting circuit 102, and the corresponding state is controlled through the button. SIM card unit 2 includes 3 SIM card seats optional, supports the SIM card insertion of multi -direction, provides the flow required by the internet through the insertion SIM. Radio frequency unit 3 includes a main set unit 301 mainly responsible for the signal reception of uplink and downlink, a diversity unit 302, is responsible for increasing the uplink reception of module, a GNSS antenna unit 303 is responsible for receiving GPS, BD signal. USB transmission unit 4 includes 1 USB2.0 interface and terminal interface, can be connected through USB or terminal and main control and builds data transmission. Power unit 5 contains rectifier filter and voltage conversion unit, and NL668 is stably powered through MP2315 and relevant filter voltage stabilizing circuit.

[0027] Among them, the state indicating lamp circuit 103 includes triode Q1, LED lamp D1, resistance R1, R2 and R3;The one end of resistance R1 is connected with the anode of LED lamp D1, the other end of resistance R1 is connected with voltage VCC, the cathode of LED lamp D1 is connected with the 3 pin of triode Q1, the one end of resistance R2, the one end of resistance R3 are all connected with the 1 pin of triode Q1, the 2 pin of triode Q1, the other end of resistance R3 are grounded, and the other end of resistance R2 is connected with the NET_MODE pin of NL668 module 101;In this way, the working state of NL668 module 101 can be displayed according to the indicating lamp flickering speed.

[0028] Among them, the reset and starting circuit includes resistance R4, R5, R6, R7 and R8, capacitor C1, diode D2 and switch K1;The one end of switch K1 is grounded, the other end of switch K1 is connected with the one end of resistance R4, the one end of resistance R5, and the other end of R4 is connected with the 4G_Reset pin of NL668 module 101, the other end of resistance R5 is connected with the one end of resistance R6, the one end of resistance R7, the one end of resistance R8, the anode of diode D2 and the one end of capacitor C1, the cathode of diode and the other end of resistance R6 are connected with voltage VCC, the other end of resistance R7, the other end of capacitor C1 are all grounded, the other end of resistance R8 is connected with the 4G_POWERKEY pin of NL668 module 101.

[0029] Among them, the SIM card unit 2 is equipped with multiple SIM card seats, supports the SIM card insertion of multi -direction, provides the flow required by the internet through the insertion SIM.

[0030] Among them, the communication module 1 is connected with the main control module of the equipment of access through data transmission unit 4, and data transmission is carried out.

[0031] In operation, the portable 4G outdoor communication device, the communication module unit 1 includes an NL668 module, which plays a main role in data transmission; a state indicator light, which detects the network state of the module; a reset and power-on circuit 102, which controls the corresponding state through a button. The SIM card unit 2 includes three SIM card seats that can be selected, supporting multi-directional SIM card insertion, providing the required traffic for online through the inserted SIM. The radio frequency unit 3 includes a main set unit 301, which is mainly responsible for uplink and downlink signal reception; a diversity unit 302, which is responsible for increasing the uplink reception of the module; and a GNSS antenna unit 303, which is responsible for receiving GPS and BD signals. The USB transmission unit 4 includes a USB 2.0 interface and a terminal interface, which can be connected to the host through USB or a terminal to build data transmission. The power unit 5 includes a rectifier filter and a voltage conversion unit, which provides stable power supply for the NL668 through MP2315 and related filter and voltage stabilizing circuit.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. A portable 4G outdoor communication device, characterized in that: It includes a communication module (1), a SIM card unit (2), a radio frequency unit (3), a data transmission unit (4), and a power supply unit (5); The communication module (1) includes an NL668 module (101), a reset and power-on circuit (102), and a status indicator circuit (103). The SIM card unit (2), the radio frequency unit (3), and the data transmission unit (4) are all connected to the NL668 module (101). The radio frequency unit (3) includes a main unit (301), a diversity unit (302), and a GNSS antenna unit (303), wherein the main unit (301) is responsible for receiving uplink and downlink signals; the diversity unit (302) is responsible for increasing the uplink reception of the radio frequency unit (3); and the GNSS antenna unit (303) is responsible for receiving GPS / BD signals. The power supply unit (5) is used to supply power to the communication module (1).

2. The portable 4G outdoor communication device according to claim 1, characterized in that, The status indicator circuit (103) includes a transistor Q1, an LED D1, and resistors R1, R2, and R3; One end of resistor R1 is connected to the anode of LED D1, and the other end of resistor R1 is connected to voltage VCC. The cathode of LED D1 is connected to pin 3 of transistor Q1. One end of resistor R2 and one end of resistor R3 are both connected to pin 1 of transistor Q1. Pin 2 of transistor Q1 and the other end of resistor R3 are grounded, and the other end of resistor R2 is connected to the NET_MODE pin of NL668 module (101).

3. A portable 4G outdoor communication device according to claim 1, characterized in that, The reset and power-on circuit includes resistors R4, R5, R6, R7 and R8, capacitor C1, diode D2 and switch K1; One end of the switch K1 is grounded, and the other end of the switch K1 is connected to one end of resistor R4 and one end of resistor R5. The other end of R4 is connected to the 4G_Reset pin of the NL668 module (101). The other end of resistor R5 is connected to one end of resistor R6, one end of resistor R7, one end of resistor R8, the anode of diode D2, and one end of capacitor C1. The cathode of the diode and the other end of resistor R6 are connected to voltage VCC. The other ends of resistor R7 and capacitor C1 are both grounded. The other end of resistor R8 is connected to the 4G_POWERKEY pin of the NL668 module (101).

4. A portable 4G outdoor communication device according to claim 1, characterized in that, The SIM card unit (2) is provided with multiple SIM card slots.

5. A portable 4G outdoor communication device according to claim 1, characterized in that, The communication module (1) is connected to the main control module of the accessed device via the data transmission unit (4) to transmit data.

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