CN116318221A - A 4G wireless data transmission device - Google Patents

Abstract

The present invention relates to a 4G wireless data transmission device, comprising: a data transmission module, a first interface, a second interface and a transmitting end; the data transmission module is respectively connected to the first interface, the second interface and the transmitting end, wherein the first The first interface and the second interface use different network protocols; the first interface is used to obtain the data of the power cabinet, and the data of the power cabinet is sent to the data transmission module; the second interface is used to obtain the data of the operation box, and the operation The box data is sent to the data transmission module; the data transmission module is used to determine the location information according to the power cabinet data and the operation box data, and pass the location information, power cabinet data and operation box data through the 4G network according to the preset network protocol Send to the transmitter; the transmitter is used to send the location information, power cabinet data and operation box data to the server. The 4G wireless data transmission device of the present invention supports multiple network protocols, has flexible transmission interfaces, and has good sharing and transmission functions.

Description

A 4G wireless data transmission device

technical field

The invention relates to the technical field of wireless transmission, in particular to a 4G wireless data transmission device.

Background technique

Today, with the increasing popularity of the mobile Internet, the Internet of Everything has become a trend, which is called Industry 4.0 in the industry. Industry 4.0 drives a new round of industrial revolution, and its core feature is interconnection. Internet technology reduces the information asymmetry between production and sales, and accelerates the interconnection and feedback between the two. Therefore, a consumer-driven business model has been born, and Industry 4.0 is the key link to realize this model. Industry 4.0 represents the intelligent production of "Internet + manufacturing", which breeds a large number of new business models, and can truly realize the "C2B2C" business model.

Wireless data transmission terminals in the prior art usually use HTTP two-way communication to realize wireless data transmission.

However, the wireless data transmission terminals in the prior art support few network protocols, and the transmission interface is single, and the application sharing function is poor. sharing effect. Moreover, simultaneous positioning and data transmission cannot be realized, which is inconvenient and practical.

Contents of the invention

In view of this, it is necessary to provide a 4G wireless data transmission device to solve the problems in the prior art that wireless data transmission terminals support few network protocols, a single transmission interface, and poor sharing and transmission functions.

In order to achieve the above-mentioned technical purpose, the present invention has taken the following technical solutions:

In a first aspect, the present invention provides a 4G wireless data transmission device, comprising: a data transmission module, a first interface, a second interface, and a transmitting end; the data transmission module is respectively connected to the first interface, the second interface, and the transmitting end, Wherein, the first interface and the second interface use different network protocols;

The first interface is used to obtain the data of the power cabinet and send the data of the power cabinet to the data transmission module;

The second interface is used to obtain the operation box data and send the operation box data to the data transmission module;

The data transmission module is used to determine the location information according to the power cabinet data and the operation box data, and send the location information, power cabinet data and operation box data to the transmitter through the 4G network according to the preset network protocol;

The transmitter is used to send location information, power cabinet data and operation box data to the server.

Preferably, the first interface includes a first interface isolation transceiver circuit; the first interface isolation transceiver circuit includes: chip U1, capacitor C7, common mode filter T1, diodes D1, D2, body effect diode D3, resistors R1, R2 , R3, air discharge tube GDT;

The fourth pin of the chip U1 is connected to the first preset voltage, the sixth pin of the chip U1 is connected to the second pin of the common mode filter T1, the seventh pin of the chip U1 is connected to the first pin of the common mode filter T1 The fifth pin of the chip U1 is connected to one end of the resistor R3, the capacitor C7 is connected to both ends of the resistor R3, the cathode of the diode D1 is connected to the fourth pin of the common mode filter T1, and the anode of the diode D1 is connected to the body effect diode One end of D3, the anode of diode D2 is connected to the fourth pin of common mode filter T1, the cathode of diode D2 is connected to one end of body effect diode D3, and the other end of body effect transistor D3 is connected to the third pin of common mode filter T1 , one end of the resistor R1 is connected to the third pin of the common-mode filter T1, the other end of the resistor R1 is connected to the first pin of the air discharge tube GDT, one end of the resistor R2 is connected to the fourth pin of the common-mode filter T1, and the resistor The other end of R2 is connected to the second pin of the air discharge tube GDT, and the third pin of the air discharge tube GDT is grounded.

Preferably, the first interface isolation transceiver circuit further includes: a pull-up resistor R _{pull up} , a pull-down resistor R _{pull down} ; one end of the pull-up resistor R _{pull up is} connected to the eighth pin of the chip U1, and one end of the pull-up resistor R _pull up is connected to the eighth pin of the chip U1. The other end is connected to the sixth pin of the chip U1, one end of the pull-down resistor R _{pull down} is connected to the fifth pin of the chip U1, and the other end of the pull-down resistor R _{pull down} is connected to the seventh pin of the chip U1.

Preferably, the second interface includes a second interface transceiver circuit; the second interface transceiver circuit includes: chip U2, capacitors C1, C2, C3, C4, C5, C6, resistor R4, crystal oscillator X1;

The fourth pin of chip U2 is connected to the third pin of chip U2, the third pin of chip U2 is respectively connected to one end of capacitor C3 and capacitor C4, the other end of capacitor C3 and capacitor C4 is grounded, and the fifth pin of chip U2 Connect the first preset voltage and one end of capacitor C5 respectively, the other end of capacitor C5 is grounded, the 22nd pin of chip U2 is connected to one end of capacitor C1, the other end of capacitor C1 is grounded, and the 20th pin of chip U2 Connect one end of capacitor C2, the other end of capacitor C2 is grounded, the nineteenth pin of chip U2 is connected to the third pin of crystal oscillator X1, the eighteenth pin of chip U2 is connected to the first pin of crystal oscillator X1, the pin of crystal oscillator X1 The second pin and the fourth pin of the crystal oscillator X1 are grounded, the sixteenth pin of the chip U2 is respectively connected to one end of the resistor R4 and one end of the capacitor C6, the other end of the resistor R4 is connected to the first preset voltage, and the other end of the capacitor C6 One end is grounded.

Preferably, the data transmission module includes a level conversion circuit, and the level conversion circuit is used to convert the first preset voltage into the second preset voltage.

Preferably, the first interface uses a twisted pair to communicate with the data source.

Preferably, the second interface uses a network cable to communicate with the data source.

Preferably, the first interface adopts Modbus-485 protocol.

Preferably, the second interface adopts Modbus TCP protocol.

Preferably, the first preset voltage is DC3.3V, and the second preset voltage is DC1.8V.

The beneficial effect of adopting the above-mentioned embodiment is: a kind of 4G wireless data transmission device provided by the present invention can use the first interface or the second interface to obtain the required parameter data from the data source according to the different data sources, and the acquired parameter data The data is sent to the data transmission module. The data transmission module can communicate with the 4G network. The data transmission module receives the parameter data, and then realizes the communication with the server through the 4G network, and sends the parameter data to the server through the transmitter for use. The first interface and the second interface adopted by the present invention enrich the types of transmission interfaces, and the network protocols supported by different interfaces are also different, which increases the number of usable network protocols and more usable transmission modes, which further The ability to share the transmission function is improved. The data transmission module communicates with the server through the 4G network through the transmitter, and the coverage is wider. The 4G wireless network provided by the present invention can be judged according to the difference in data obtained by different interfaces. The location information of the data transmission device, and can also send the location information to the server through the 4G network.

Description of drawings

FIG. 1 is a schematic structural view of an embodiment of a 4G wireless data transmission device provided by the present invention;

Fig. 2 is a circuit structural diagram of an embodiment of the first interface isolation transceiver circuit provided by the present invention;

FIG. 3 is a circuit structure diagram of an embodiment of the second interface transceiver circuit provided by the present invention.

Detailed ways

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

Before setting forth specific embodiments of the present invention, carry out following description:

When describing the pins of a specific electronic component, refer to the labels around the pins of the electronic component in the drawings to indicate which pin the pin is of the electronic component.

Please refer to FIG. 1, FIG. 1 is a schematic structural diagram of an embodiment of a 4G wireless data transmission device provided by the present invention. A specific embodiment of the present invention discloses a 4G wireless data transmission device 100, including: a data transmission module 110 , the first interface 120, the second interface 130 and the transmitting end 140; the data transmission module 110 is connected with the first interface 120, the second interface 130 and the transmitting end 140 respectively, wherein the first interface 110 and the second interface 120 use different Network protocol;

The first interface 120 is used to obtain the data of the power cabinet, and send the data of the power cabinet to the data transmission module 110;

The second interface 130 is used to obtain the operation box data, and send the operation box data to the data transmission module 110;

The data transmission module 110 is used to determine the location information according to the power cabinet data and the operation box data, and send the location information, the power cabinet data and the operation box data to the transmitter 140 through the 4G network according to the preset network protocol;

The transmitting end 140 is used to send location information, power cabinet data and operation box data to the server.

In the above embodiment, the first interface 120 is an RS-485 interface. RS485 is a standard defining the electrical characteristics of drivers and receivers in a balanced digital multipoint system. The standard is defined by the Telecommunications Industry Association and the Electronic Industries Alliance. Digital communication networks using this standard can transmit signals efficiently over long distances and in electronically noisy environments. RS-485 enables connection to local networks as well as configuration of multi-drop communication links.

The second interface 130 is an RJ45 interface, and the RJ45 interface is usually used for data transmission. The DCE type of the switch, etc. RJ45 is composed of a plug and a socket. The connector composed of these two components is connected between the wires to achieve the electrical continuity of the wires.

The data transmission module 110 is Air722UG 4G. Air722UG 4G has built-in rich network protocols, integrates multiple industry standard interfaces, and supports multiple drivers and software functions (such as USB under Windows7/8/8.1/10, Linux, Android, etc. Drivers, etc.), greatly expanding its application range in the M2M field, such as CPE, routers, data cards, tablet computers, vehicles, security and industrial PDAs. Air722UG 4G supports TTS, supports SPI LCD, supports SPI Camera, and supports 3*2 array keyboard. Support a variety of development methods, such as USB Internet access, standard AT, Lua script secondary development, etc., and can provide professional and timely online technical support.

The transmitting end 140 is a transmission antenna, and the antenna is a kind of converter, which converts the guided wave propagating on the transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space), or vice versa. A component used in radio equipment to transmit or receive electromagnetic waves. It should be noted that, the model of the transmission antenna mentioned in the present invention is not further limited.

Compared with the prior art, the 4G wireless data transmission device 100 provided in this embodiment can use the first interface 120 or the second interface 130 to obtain the required parameter data from the data source 200 according to the difference of the data source 200, and The obtained parameter data is sent to the data transmission module 110, and the data transmission module 110 can perform 4G network communication, the data transmission module 110 receives the parameter data, and then realizes the communication with the server through the 4G network, and sends the parameter data through the transmitter 140 For server use. The first interface 120 and the second interface 130 adopted by the present invention enrich the types of transmission interfaces, and the network protocols supported by different interfaces are also different, which increases the usable network protocols, more usable transmission modes, and The ability to share the transmission function is further improved. The data transmission module 110 communicates with the server through the 4G network through the transmitter 140, and the coverage is wider. It can be judged according to the difference in the data obtained by different interfaces. Provide the location information of the 4G wireless data transmission device 100, and also send the location information to the server through the 4G network.

Please refer to Fig. 2, Fig. 2 is a circuit structure diagram of an embodiment of the first interface isolation transceiver circuit provided by the present invention, in some embodiments of the present invention, the first interface 120 includes the first interface 120 isolation transceiver circuit ; The first interface 120 isolated transceiver circuit includes: chip U1, capacitor C7, common mode filter T1, diodes D1, D2, body effect diode D3, resistors R1, R2, R3, air discharge tube GDT;

The fourth pin of the chip U1 is connected to the first preset voltage, the sixth pin of the chip U1 is connected to the second pin of the common mode filter T1, the seventh pin of the chip U1 is connected to the first pin of the common mode filter T1 The fifth pin of the chip U1 is connected to one end of the resistor R3, the capacitor C7 is connected to both ends of the resistor R3, the cathode of the diode D1 is connected to the fourth pin of the common mode filter T1, and the anode of the diode D1 is connected to the body effect diode One end of D3, the anode of diode D2 is connected to the fourth pin of common mode filter T1, the cathode of diode D2 is connected to one end of body effect diode D3, and the other end of body effect transistor D3 is connected to the third pin of common mode filter T1 , one end of the resistor R1 is connected to the third pin of the common-mode filter T1, the other end of the resistor R1 is connected to the first pin of the air discharge tube GDT, one end of the resistor R2 is connected to the fourth pin of the common-mode filter T1, and the resistor The other end of R2 is connected to the second pin of the air discharge tube GDT, and the third pin of the air discharge tube GDT is grounded.

In the above embodiment, the chip U1 is 7D301M485, the first pin and the second pin of the chip U1 are connected to the data transmission module 110, and exchange data with the data transmission module 110 through the first pin and the second pin. Common mode filter T1, diodes D1, D2, body effect diode D3, air discharge tube GDT, etc. are RS-485 port protection circuits, which can prevent static electricity, surges, lightning strikes and other disasters from damaging the equipment, and protect the module from being safe in harsh environments. Stable operation. The rated operating voltage of the air discharge tube is 90V. When encountering disasters such as static electricity, surges, and lightning strikes, the operating voltage in the circuit will increase. If it exceeds 90V, the air discharge tube will be short-circuited and the circuit will be disconnected, thereby protecting the circuit. . The resistors R1 , R2 , R3 are connected to one terminal, through which the data source 200 is connected.

In some embodiments of the present invention, the isolated transceiver circuit of the first interface 120 further includes: a pull-up resistor R _{pull up} and a pull-down resistor R _{pull down} ; one end of the pull-up resistor R _{pull up} is connected to the eighth pin of the chip U1, The other end of the pull-up resistor R _{pull up} is connected to the sixth pin of the chip U1, one end of the pull-down resistor R _{pull down is connected} to the fifth pin of the chip U1, and the other end of the pull-down resistor R _{pull down} is connected to the seventh pin of the chip U1 .

In the above embodiments, the pull-up resistor R _{pull up} and the pull-down resistor R _{pull down} are reserved, that is, the pull-up resistor R _{pull up} and the pull-down resistor R _{pull down} can be set or canceled according to the actual usage _up and the pull-down resistor R _{pull down} . The most basic function of the pull-up resistor R _pull up and the pull-down resistor R _{pull down} is to clamp the signal line with an uncertain state to a high level (pull-up) or a low level (pull-down) through a resistor, regardless of its Regardless of the specific usage, the basic function is the same, but the resistance requirements of the resistors are different in different applications. The pull-up resistor R _{pull up} pulls up the voltage of the sixth pin of the chip U1 to the voltage of the eighth pin of the chip U1, and the pull-down resistor R _{pull down} pulls up the voltage of the seventh pin of the chip U1 to the voltage of the eighth pin of the chip U1. Five-pin voltage.

Please refer to Fig. 3, Fig. 3 is the circuit structural diagram of an embodiment of the second interface transceiver circuit provided by the present invention, in some embodiments of the present invention, the second interface 130 includes the second interface 130 transceiver circuit; Two-interface 130 transceiver circuit includes: chip U2, capacitors C1, C2, C3, C4, C5, C6, resistor R4, crystal oscillator X1;

The fourth pin of chip U2 is connected to the third pin of chip U2, the third pin of chip U2 is respectively connected to one end of capacitor C3 and capacitor C4, the other end of capacitor C3 and capacitor C4 is grounded, and the fifth pin of chip U2 Connect the first preset voltage and one end of capacitor C5 respectively, the other end of capacitor C5 is grounded, the 22nd pin of chip U2 is connected to one end of capacitor C1, the other end of capacitor C1 is grounded, and the 20th pin of chip U2 Connect one end of capacitor C2, the other end of capacitor C2 is grounded, the nineteenth pin of chip U2 is connected to the third pin of crystal oscillator X1, the eighteenth pin of chip U2 is connected to the first pin of crystal oscillator X1, the pin of crystal oscillator X1 The second pin and the fourth pin of the crystal oscillator X1 are grounded, the sixteenth pin of the chip U2 is respectively connected to one end of the resistor R4 and one end of the capacitor C6, the other end of the resistor R4 is connected to the first preset voltage, and the other end of the capacitor C6 One end is grounded.

In the above embodiment, the chip U2 is MJ-SOC1, and this circuit communicates with the Air722UG through the serial bus, and converts the serial port data of the Air722UG into network port data. RJ45 interface, also known as network interface. The scope of application includes internal LAN, external network connection, etc. Common RJ45 interface products include: network server, routing modem, hub, personal PC terminal, printer and other equipment.

In some embodiments of the present invention, the data transmission module 110 includes a level conversion circuit for converting the first preset voltage into the second preset voltage.

In the above embodiment, the rated voltage of the data transmission module 110 is different from the rated voltage of the isolated transceiver circuit of the first interface 120. If the data transmission module 110 and the isolated transceiver circuit of the first interface 120 are directly connected, it may cause the data transmission module 110 is damaged and loses its original function. Therefore, it is necessary to set up a level conversion circuit to convert the level to avoid direct connection of different levels and damage the circuit.

In some embodiments of the present invention, the first interface 120 communicates with the data source 200 using twisted pair wires.

In the above embodiments, the twisted pair is the most commonly used transmission medium in integrated wiring engineering, and is composed of two copper wires with an insulating protective layer. Twisting two insulated copper wires with each other at a certain density, the radio waves radiated by each wire during transmission will be offset by the radio waves emitted by the other wire, effectively reducing the degree of signal interference.

In some embodiments of the present invention, the second interface 130 communicates with the data source 200 using a network cable.

In the above-mentioned embodiments, the network cable is a connection cable connecting computers and computers, and computers and other network devices, and the second interface 130 and the data source 200 perform data transmission through the network, so choose a suitable network cable to connect to realize the second interface Data communication between 130 and data source 200. It should be noted that, the present invention does not further limit the specific type of the network cable.

In some embodiments of the present invention, the first interface 120 adopts Modbus-485 protocol.

In some embodiments of the present invention, the second interface 130 adopts Modbus TCP protocol.

In the above embodiment, the Modbus serial link protocol is a master-slave protocol. At the same time, there can only be one master station and one or more (up to 247) slave stations on the bus, and the Modbus communication is always controlled by the master station. Initiation, when the slave station does not receive a request from the master station, it will not send data, the slave stations cannot communicate with each other, and the master station can only start one Modbus transaction at the same time. The first interface 120 communicates with the data source 200 using the Modbus-485 protocol; the second interface 130 communicates with the data source 200 using the ModbusTCP protocol.

In some embodiments of the present invention, the first preset voltage is DC3.3V, and the second preset voltage is DC1.8V.

In the above example, the VCC pin of the chip U1 is 3.3V, and the interface matching level of the TXD pin and the RXD pin is also 3.3V. Because the Air722UG 4G uses a 1.8V level, it is necessary to set the level conversion in actual use. The device converts 3.3V to 1.8V to ensure the safety of the circuit.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (10)

1. A 4G wireless data transmission device, characterized in that, comprising: a data transmission module, a first interface, a second interface and a transmitting end; the data transmission module is respectively connected to the first interface, the second interface and the The transmitting end is connected, wherein the first interface and the second interface use different network protocols; The first interface is used to obtain power cabinet data, and send the power cabinet data to the data transmission module; The second interface is used to obtain operation box data, and send the operation box data to the data transmission module; The data transmission module is configured to determine location information according to the power cabinet data and the operation box data, and transmit the location information, the power cabinet data and the operation box data through a 4G network according to a preset network protocol sent to the transmitter; The transmitter is configured to send the position information, the data of the power cabinet and the data of the operation box to a server. 2. The 4G wireless data transmission device according to claim 1, wherein the first interface comprises a first interface isolation transceiver circuit; the first interface isolation transceiver circuit comprises: a chip U1, a capacitor C7, Common mode filter T1, diodes D1, D2, body effect diode D3, resistors R1, R2, R3, air discharge tube GDT; The fourth pin of the chip U1 is connected to the first preset voltage, the sixth pin of the chip U1 is connected to the second pin of the common mode filter T1, and the seventh pin of the chip U1 is connected to the The first pin of the common mode filter T1, the fifth pin of the chip U1 is connected to one end of the resistor R3, the capacitor C7 is connected to both ends of the resistor R3 in parallel, and the cathode of the diode D1 connected to the fourth pin of the common mode filter T1, the anode of the diode D1 is connected to one end of the body effect diode D3, and the anode of the diode D2 is connected to the fourth pin of the common mode filter T1, The cathode of the diode D2 is connected to one end of the body effect diode D3, the other end of the body effect diode D3 is connected to the third pin of the common mode filter T1, and one end of the resistor R1 is connected to the common mode The third pin of the filter T1, the other end of the resistor R1 is connected to the first pin of the air discharge tube GDT, and one end of the resistor R2 is connected to the fourth pin of the common mode filter T1, so The other end of the resistor R2 is connected to the second pin of the air discharge tube GDT, and the third pin of the air discharge tube GDT is grounded. 3. 4G wireless data transmission device according to claim 2, is characterized in that, described first interface isolation transceiver circuit also comprises: pull-up resistance R _pullup , pull-down resistance R _pulldown ; The pull-up resistance R _pullup of described One end is connected to the eighth pin of the chip U1, the other end of the pull-up resistor R _pullup is connected to the sixth pin of the chip U1, and one end of the pull-down resistor R _pulldown is connected to the fifth pin of the chip U1. pin, the other end of the pull-down resistor R _pulldown is connected to the seventh pin of the chip U1. 4. The 4G wireless data transmission device according to claim 2, wherein the second interface comprises a second interface transceiver circuit; the second interface transceiver circuit comprises: a chip U2, capacitors C1, C2, C3, C4, C5, C6, resistor R4, crystal oscillator X1; The fourth pin of the chip U2 is connected to the third pin of the chip U2, the third pin of the chip U2 is respectively connected to one end of the capacitor C3 and the capacitor C4, the capacitor C3, the The other end of the capacitor C4 is grounded, the fifth pin of the chip U2 is respectively connected to the first preset voltage and one end of the capacitor C5, the other end of the capacitor C5 is grounded, and the twentieth pin of the chip U2 The second pin is connected to one end of the capacitor C1, the other end of the capacitor C1 is grounded, the twentieth pin of the chip U2 is connected to one end of the capacitor C2, the other end of the capacitor C2 is grounded, and the chip U2 is connected to the other end of the capacitor C2. The nineteenth pin of U2 is connected to the third pin of the crystal oscillator X1, the eighteenth pin of the chip U2 is connected to the first pin of the crystal oscillator X1, and the second pin of the crystal oscillator X1 is connected to the crystal oscillator X1. The fourth pin of the crystal oscillator X1 is grounded, the sixteenth pin of the chip U2 is respectively connected to one end of the resistor R4 and one end of the capacitor C6, and the other end of the resistor R4 is connected to the first preset voltage, the other end of the capacitor C6 is grounded. 5. The 4G wireless data transmission device according to claim 2 or 4, wherein the data transmission module includes a level conversion circuit, and the level conversion circuit is used to convert the first preset voltage to second preset voltage. 6. The 4G wireless data transmission device according to claim 1, wherein the first interface communicates with the data source using a twisted pair. 7. The 4G wireless data transmission device according to claim 6, wherein the second interface uses a network cable to communicate with the data source. 8. The 4G wireless data transmission device according to claim 2, wherein the first interface adopts the Modbus-485 protocol. 9. The 4G wireless data transmission device according to claim 4, wherein the second interface adopts the ModbusTCP protocol. 10. The 4G wireless data transmission device according to claim 5, wherein the first preset voltage is DC3.3V, and the second preset voltage is DC1.8V.

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