CN215222186U

CN215222186U - Self-starting communication module and communication device

Info

Publication number: CN215222186U
Application number: CN202121688513.8U
Authority: CN
Inventors: 曾召干; 肖毓
Original assignee: Shenzhen Hongtong Technology Co ltd
Current assignee: Shenzhen Hongtong Technology Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-12-17
Anticipated expiration: 2031-07-23

Abstract

The utility model belongs to the technical field of electronic communication, in particular to a self-starting communication module and a communication device, wherein the self-starting communication module comprises a communication unit, an interface circuit, a SIM card seat and an antenna connecting seat which are respectively connected with the communication unit; the communication unit is also connected with a self-starting circuit, the self-starting circuit is connected with a PWRKEY port of the communication unit, the self-starting circuit comprises a capacitor C1 and a resistor R24, one end of the capacitor C1 is connected with the PWRKEY port, the other end of the capacitor C1 is grounded, and the resistor R24 is connected with the capacitor C1 in parallel. The utility model discloses a set up self-starting circuit, utilize the last electric process of module to realize self-starting, need not set up starting circuit in addition, simple structure easily realizes that the practicality is high.

Description

Self-starting communication module and communication device

Technical Field

The utility model belongs to the technical field of electronic communication, especially, relate to a self-starting communication module and communication device.

Background

The internet of things originates from the media field and is the third revolution of the information technology industry, the internet of things refers to that objects are connected into a network through information sensing equipment according to an agreed protocol, and the objects carry out information interaction and communication through information media so as to realize functions of intelligent identification, positioning, tracking, monitoring and the like.

No matter what specific object is, the communication function is required to participate in the Internet of things. The communication between objects needs to depend on the communication module, and although the communication module has different specifications and types, the most fundamental function is to realize the data transceiving, which is not changed on any specific object.

The communication module usually needs to be started by setting a starting signal, the starting signal generally adopts a pulse signal, and the pulse signal can be generated by a singlechip, but the starting control of the communication module is inconvenient because of the pulse program design of the singlechip.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a self-starting communication module aims at solving the inconvenient problem of communication module start control among the prior art.

The embodiment of the utility model provides a realize like this, a self-starting communication module, the self-starting communication module includes communication unit, interface circuit, SIM cassette and the antenna connecting seat that are connected with the communication unit respectively;

the communication unit is also connected with a self-starting circuit, the self-starting circuit is connected with a PWRKEY port of the communication unit, the self-starting circuit comprises a capacitor C1 and a resistor R24, one end of the capacitor C1 is connected with the PWRKEY port, the other end of the capacitor C1 is grounded, and the resistor R24 is connected with the capacitor C1 in parallel.

Preferably, the self-starting circuit further comprises a switch connected in parallel with the capacitor C1 and the resistor R24.

Preferably, the interface circuit includes an interface unit and a power supply unit, the interface unit is used for being connected with an external device, the power supply unit is used for supplying power to the interface unit, and the interface unit is connected with the communication unit.

Preferably, the interface unit includes at least one socket, a power interface of the socket is connected to the power supply unit, and two pins of the socket are connected to the communication unit.

Preferably, the power supply unit comprises a voltage reduction chip, a SW port of the voltage reduction chip is connected with VBAT, and an inductor L3 is connected in series between the SW port and VBAT port; and the VIN port and the EN port of the voltage reduction chip are both connected with the power interface of the interface, and a resistor R16 is connected between the EN port and the power interface of the interface in series.

Preferably, the self-starting communication module further comprises a voltage stabilizing circuit, the voltage stabilizing circuit comprises two subunits, each subunit comprises a plurality of capacitors arranged in parallel, at least one of the plurality of capacitors is an electrolytic capacitor, and at least one of the plurality of subunits is further connected with a zener diode in parallel; the voltage stabilizing circuit is connected with a power supply of the communication unit.

Preferably, the self-starting communication module further includes a network status indication circuit, the network status indication circuit is connected to the communication unit and is used for indicating a network connection status, and the network status indication circuit at least includes a light emitting diode capable of being selectively conducted.

Preferably, a plurality of interfaces matched with the SIM card are arranged in the SIM card holder, at least one of the interfaces is used for connecting the SIM card and the communication unit, and at least one of the interfaces is used for supplying power to the SIM card.

Another object of the embodiments of the present invention is to provide a communication device, which includes a self-starting communication module as the embodiments of the present invention.

The utility model discloses a set up self-starting circuit, utilize the last electric process of module to realize communication unit's self-starting, need not to set up starting circuit in addition, simple structure easily realizes that the practicality is high.

Drawings

Fig. 1 is a block diagram of a self-starting communication module according to an embodiment of the present invention;

FIG. 2 is a circuit connection diagram of a communication unit;

FIG. 3 is a connection diagram of a self-starting circuit;

FIG. 4 is a connection diagram of an interface unit;

FIG. 5 is a power supply unit connection diagram;

FIG. 6 is a schematic diagram of a voltage regulator circuit;

FIG. 7 is a network status indicating circuit connection diagram;

FIG. 8 is a circuit diagram of a SIM card socket;

FIG. 9 is a circuit diagram of an antenna connection socket;

fig. 10 is a main antenna circuit connection diagram.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

As shown in fig. 1, which is a block diagram of a self-starting communication module provided in an embodiment of the present invention, the self-starting communication module includes a communication unit, an interface circuit, an SIM card holder, and an antenna connection seat, which are respectively connected to the communication unit;

In the embodiment of the present invention, the communication unit can specifically select various existing communication chips, such as BG95, BG96, etc., the drawings of the present invention take BG95 as an example, and the connection mode is as shown in fig. 2. When the chip is used, the chip is powered on, the PWRKEY port outputs at a high level, and the low level meeting the starting time length of the chip appears on the PWRKEY port by utilizing the capacitor C1 and the resistor R24, so that the self-inspiration of the chip is realized. Different chip specifications are different, and the specification and the size of the capacitor C1, the resistor R24 and other related elements are not particularly limited by the invention; the self-starting circuit is shown in detail in fig. 3.

Preferably, the self-starting circuit further comprises a switch connected in parallel with the capacitor C1 and the resistor R24. The embodiment of the utility model provides an in, during the switch disconnection, above-mentioned self-starting circuit takes effect, and when the switch switched on, above-mentioned self-starting circuit became invalid, control module's start-up more in a flexible way.

Preferably, the interface circuit includes an interface unit and a power supply unit, the interface unit is used for being connected with an external device, the power supply unit is used for supplying power to the interface unit, and the interface unit is connected with the communication unit. In the embodiment of the present invention, the interface may specifically be a USB interface or an interface of another type, and the embodiment of the present invention is not limited to this specifically.

Preferably, the interface unit includes at least one socket, a power interface of the socket is connected to the power supply unit, and two pins of the socket are connected to the communication unit. In the embodiment of the present invention, the interface is preferably a USB male interface, and one or more interfaces may be provided. Fig. 2 shows a connection mode of two USB interfaces, in which two signal connectors, i.e., interface 2 and interface 3 (interface 6 and interface 7), are respectively connected to a communication unit, and power interface 8 and power interface 1 are respectively connected to a power supply unit. As shown in particular in fig. 4.

Preferably, the power supply unit comprises a voltage reduction chip, a SW port of the voltage reduction chip is connected with VBAT, and an inductor L3 is connected in series between the SW port and VBAT port; and the VIN port and the EN port of the voltage reduction chip are both connected with the power interface of the interface, and a resistor R16 is connected between the EN port and the power interface of the interface in series. In the embodiment of the present invention, the power interface of the socket is further connected to a capacitor C16, and the other end of the capacitor C16 is grounded; a capacitor C22 is connected in series between the BST port and the SW port of the voltage reduction chip; a resistor R26 and a capacitor C17 are arranged in parallel between the FB port of the voltage reduction chip and VBAT, and a resistor R27 is connected in series between the FB port and the ground. In the embodiment of the present invention, the voltage reduction chip can be selected from JW 5033H. Furthermore, VBAT and ground can be divided into two paths, one path is connected with the capacitor C24, and the other path is connected with the light emitting diode D2 and the resistor R2 in series. The led D2 is a power status indicator light. As shown in particular in fig. 5.

Preferably, the self-starting communication module further comprises a voltage stabilizing circuit, the voltage stabilizing circuit comprises two subunits, each subunit comprises a plurality of capacitors arranged in parallel, at least one of the plurality of capacitors is an electrolytic capacitor, and at least one of the plurality of subunits is further connected with a zener diode in parallel; the voltage stabilizing circuit is connected with a power supply of the communication unit. As shown in particular in fig. 6.

Preferably, the self-starting communication module further includes a network status indication circuit, the network status indication circuit is connected to the communication unit and is used for indicating a network connection status, and the network status indication circuit at least includes a light emitting diode capable of being selectively conducted. In the embodiment of the present invention, an output port of the communication unit is connected to the base of the triode Q5 through the resistor R13, and the resistor R6 and the light emitting diode D3 are connected between the collector of the triode Q5 and the power VBAT; the emitter of the triode Q5 is grounded, and a resistor R14 is connected between the emitter and the base. When the communication unit is connected to the network, the ac diode D3 is turned on to emit light, as shown in fig. 7.

Preferably, a plurality of interfaces matched with the SIM card are arranged in the SIM card holder, at least one of the interfaces is used for connecting the SIM card and the communication unit, and at least one of the interfaces is used for supplying power to the SIM card. In the embodiment of the utility model, the SIM card can be selected as MICRO-SIM, the RST port, the CLK port and the I/O port of the MICRO-SIM are respectively connected with the communication unit, a resistor is connected in series between each port and the communication unit, and a capacitor is connected in series between each port and the ground; a capacitor C10 is connected in series between the VCC port and the GND port of the MICRO-SIM, and the GND port is grounded; the VCC port and the I/O port are both connected to USIM _ VDD, and a resistor R12 is further connected between USIM _ VDD and the I/O port, as shown in fig. 8.

The utility model discloses an embodiment has still given the circuit diagram of main antenna and antenna connecting seat, can understand, and main antenna and antenna connecting seat cooperation are specifically as shown in figure 9, 10, the embodiment of the utility model provides an it is no longer repeated here.

The embodiment of the utility model provides a communication device, communication device includes like the embodiment of the utility model provides a self-starting communication module. Through using the embodiment of the utility model provides a communication module can realize communication module and go up the electric back and start by oneself, need not establish starting circuit in addition, and control is simple, easily realizes low cost.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A self-starting communication module is characterized by comprising a communication unit, an interface circuit, an SIM card seat and an antenna connecting seat, wherein the interface circuit, the SIM card seat and the antenna connecting seat are respectively connected with the communication unit;

2. The self-starting communication module according to claim 1, wherein the self-starting circuit further comprises a switch connected in parallel with the capacitor C1 and the resistor R24.

3. The self-starting communication module according to claim 1, wherein the interface circuit comprises an interface unit and a power supply unit, the interface unit is configured to be connected to an external device, the power supply unit is configured to supply power to the interface unit, and the interface unit is connected to the communication unit.

4. The self-starting communication module according to claim 3, wherein the interface unit comprises at least one socket, a power interface of the socket is connected with the power supply unit, and two pins of the socket are connected with the communication unit.

5. The self-starting communication module according to claim 4, wherein the power supply unit comprises a buck chip, the SW port of the buck chip is connected with VBAT, and an inductor L3 is connected in series between the SW port and VBAT port; and the VIN port and the EN port of the voltage reduction chip are both connected with the power interface of the interface, and a resistor R16 is connected between the EN port and the power interface of the interface in series.

6. The self-starting communication module according to claim 1, further comprising a voltage regulator circuit, wherein the voltage regulator circuit comprises two sub-units, each sub-unit comprises a plurality of capacitors arranged in parallel, at least one of the capacitors is an electrolytic capacitor, and at least one of the sub-units is further connected in parallel with a zener diode; the voltage stabilizing circuit is connected with a power supply of the communication unit.

7. The self-starting communication module according to claim 1, further comprising a network status indicating circuit connected to the communication unit for indicating a network connection status, the network status indicating circuit comprising at least one light emitting diode selectively switchable on.

8. The self-starting communication module according to claim 1, wherein a plurality of interfaces matched with the SIM card are provided in the SIM card holder, at least one of the interfaces is used for connecting the SIM card and the communication unit, and at least one of the interfaces is used for supplying power to the SIM card.

9. A communication device, characterized in that it comprises a self-activating communication module according to any one of claims 1-8.