CN213937960U

CN213937960U - Multi-frequency-band communication gateway and power monitoring system thereof

Info

Publication number: CN213937960U
Application number: CN202023044582.3U
Authority: CN
Inventors: 陈毅; 王宏民
Original assignee: Wuyi University
Current assignee: Wuyi University
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-08-10
Anticipated expiration: 2030-12-16

Abstract

The application provides a multi-band communication gateway and a power monitoring system thereof. The multi-band communication gateway comprises an interface module, a communication module, a control module and a power supply management module. The interface module is used for exchanging data with the local terminal; the communication module can work under different communication frequency bands, so that the communication stability is improved; the communication module is connected to the core network based on the MQTT protocol, the MQTT protocol ensures that data transmission can be reliably carried out under a low-bandwidth high-delay network, so that the communication stability is further improved, the power management module adopts the linear voltage stabilizing chip to carry out multi-stage voltage reduction, the linear voltage difference is reduced, the power supply efficiency and stability are improved, the service life of a product is prolonged, and the stability requirement of people on a gateway is met.

Description

Multi-frequency-band communication gateway and power monitoring system thereof

Technical Field

The utility model relates to a but not limited to the communication technology field especially relates to a multifrequency section communication gateway and electric power monitored control system thereof.

Background

With the arrival of the world of everything interconnection, the state puts forward higher requirements on the real-time performance of monitoring and controlling electric energy data, and the planning and construction of smart cities need intelligent remote electric energy monitoring and controlling technology, so that an electric power monitoring system needs to be accessed into a core network through a gateway to realize remote detection and control, and the higher requirements are put forward on the service life and the stability of the gateway. However, the gateway in the prior art has short service life and poor stability, and cannot meet the requirements of people.

SUMMERY OF THE UTILITY MODEL

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The present application is directed to solving at least one of the problems in the prior art. Therefore, the multi-band communication gateway can work under different communication frequency bands, is connected to a core network based on a Message Queue Telemetry Transport (MQTT) protocol, improves communication stability, and in addition, a power management module in the multi-band communication gateway adopts a linear voltage stabilization chip to perform multi-stage voltage reduction, so that linear voltage difference is reduced, power supply efficiency and stability are improved, and the service life of a product is prolonged.

The multi-band communication gateway according to the embodiment of the first aspect of the application comprises:

the interface module is used for exchanging data with the local terminal;

the communication module can work under different communication frequency bands and is connected to a core network based on an MQTT protocol;

the control module is connected with the interface module and the communication module and can switch the working frequency bands of the communication module according to the signal states of different frequency bands;

the power management module is connected with the interface module, the communication module and the control module and used for being connected with an external direct-current power supply to supply power to the interface module, the communication module and the control module, the power management module comprises a linear voltage stabilizing chip used for carrying out multistage voltage reduction on the external direct-current power supply, and the linear voltage stabilizing chip is connected with the interface module, the communication module and the control module.

The multiband communication gateway according to the embodiment of the first aspect of the present application has at least the following advantages:

the multi-band communication gateway can work under different communication frequency bands, can select a proper frequency band to communicate according to signal strength under different frequency bands so as to ensure the stability of communication, is connected to a core network based on an MQTT protocol, and ensures that data transmission can be reliably carried out under a low-bandwidth high-delay network, thereby further improving the stability of communication. The power management module adopts the linear voltage stabilization chip to carry out multistage step-down, reduces linear pressure difference, improves the efficiency and the stability of power supply, and then prolongs the service life of a product, and meets the stability requirement of people on the gateway.

It is understood that the linear voltage stabilization chip includes a first linear voltage stabilization chip for stepping down an external dc power supply to a first voltage and a second linear voltage stabilization chip for stepping down to a second voltage, the first linear voltage stabilization chip being connected to the power management module, and the second linear voltage stabilization chip being connected to the first linear voltage stabilization chip. The linear pressure difference can be reduced by multi-stage pressure reduction, the conversion efficiency is improved, and the service life of the power supply chip can be prolonged, so that the service life of a product is prolonged, and the cost of maintenance cost is reduced.

It is understood that the linear regulator chip further includes a third linear regulator chip for stepping down the external dc power supply to a third voltage, and the third linear regulator chip is connected to the second linear regulator chip. The linear pressure difference can be reduced by multi-stage pressure reduction, the conversion efficiency is improved, and the service life of the power supply chip can be prolonged, so that the service life of a product is prolonged, and the cost of maintenance cost is reduced.

It can be understood that the communication module includes a wireless communication module, the wireless communication module is connected with the control module, and the wireless communication module can individually operate in at least one of a GSM frequency band, a WCDMA frequency band, an LTE frequency band, and a 5G communication frequency band. The multi-band communication gateway can work under different communication frequency bands, and can select a proper frequency band to communicate according to signal strength under different frequency bands so as to ensure the stability of communication.

It is to be understood that the communication module includes a wired communication module, which is connected with the control module. Through setting up wired communication module, the multifrequency section communication gateway of this application can be based on wired mode and be connected to the core network, is connected to the stability that the core network can guarantee to communicate through wired mode.

It can be understood that the multi-band communication gateway of the present application further includes a power management module, and the power management module is connected to the interface module, the communication module and the control module, and can be accessed to an external power supply for supplying power.

It is understood that the power management module includes a battery assembly that is coupled to the interface module, the communication module, and the control module. Through setting up battery pack, the multifrequency section communication gateway of this application can switch over to battery pack and supply power under the condition that external power source is cut off, has improved the stability of work.

It is understood that the power management module further comprises a power switching component connected to the battery component for switching the power input to the external power source or the battery component. Because the power management module of this application has two power inputs simultaneously, one is to insert external power source, and one is battery pack, in order to avoid two power supplies to the circuit power supply simultaneously, avoided personnel's direct operation simultaneously, promoted degree of automation, and then promoted the convenience of using.

The power monitoring system according to the embodiment of the second aspect of the present application includes a data acquisition module and the multiband communication gateway as described in the embodiment of the first aspect of the present application, wherein the data acquisition module is connected with the gateway.

According to the power monitoring system of the embodiment of the second aspect of the application, at least the following beneficial effects are achieved:

the utility model provides an electric power monitored control system can work under the communication frequency channel of difference, and it can select suitable frequency channel to communicate in order to guarantee the stability of communication according to the signal strength under the different frequency channels, and the electric power monitored control system of this application is connected to the core network based on the MQTT agreement, and the MQTT agreement has guaranteed still can carry out data transmission reliably under the network of low bandwidth high delay, has consequently further promoted the stability of communication. The power management module adopts the linear voltage stabilization chip to carry out multistage step-down, reduces linear pressure difference, improves the efficiency and the stability of power supply, and then prolongs the service life of a product, and meets the stability requirement of people on the gateway.

It can be understood that the data acquisition module is connected with the interface module through a bus based on a Modbus485 protocol. The Modbus485 protocol supports various types of electrical interfaces, and is high in compatibility, wide in application and easy to deploy and maintain.

It is understood that the data collection module comprises an HMI terminal. The HMI terminal can visually display the working state of the data acquisition module and the transmitted data and other information locally, and meanwhile, the HMI terminal can facilitate the working personnel to input control instructions to the gateway locally, so that the use convenience is improved.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

FIG. 1 is a schematic diagram of a multiband communication gateway provided by an embodiment of the present application;

fig. 2 is a schematic diagram of a power monitoring system according to an embodiment of the present application.

Reference numerals: the multi-band communication gateway 100, the interface module 110, the control module 120, the communication module 130, the wireless communication module 131, the wired communication module 132, the power management module 140, the power switching module 141, the first linear voltage regulation chip 142, the battery module 143, the second linear voltage regulation chip 144, the third linear voltage regulation chip 145, the power monitoring system 200, and the data acquisition module 210.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the positional descriptions, such as the directions or positional relationships indicated above, below, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless explicitly defined otherwise, terms such as setting, installing, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.

The application provides a multi-band communication gateway and a power monitoring system thereof. The multi-band communication gateway comprises an interface module, a communication module, a control module and a power supply management module, wherein the interface module is used for exchanging data with a local terminal; the communication module can work under different communication frequency bands, so that the communication stability is improved; the communication module is connected to the core network based on the MQTT protocol, the MQTT protocol ensures that data transmission can be reliably carried out under a low-bandwidth high-delay network, so that the communication stability is further improved, the power management module adopts the linear voltage stabilizing chip to carry out multi-stage voltage reduction, the linear voltage difference is reduced, the power supply efficiency and stability are improved, the service life of a product is prolonged, and the stability requirement of people on a gateway is met.

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, fig. 1 is a schematic diagram of a multiband communication gateway 100 provided in the embodiment of the present application.

In the example of fig. 1, multiband communication gateway 100 comprises interface module 110, communication module 130, control module 120, power management module 140, interface module 110 for exchanging data with a local terminal; the communication module 130 can work under different communication frequency bands, so that the communication stability is improved; the communication module 130 is connected to the core network based on an MQTT protocol, which ensures reliable data transmission in a low-bandwidth high-delay network, thereby further improving the communication stability and meeting the stability requirement of people on gateway communication; the control module 120 is connected to the interface module 110 and the communication module 130, and is configured to control the interface module 110 and the communication module 130 to operate, and control the communication module 130 to select a suitable frequency band for communication according to signal strengths in different frequency bands, so as to ensure stability of communication. The power management module 140 is connected to the interface module 110, the communication module 130 and the control module 120, and is used for accessing an external direct current power supply to supply power to the interface module 110, the communication module 130 and the control module 120, the power management module 140 adopts a linear voltage stabilization chip to perform multi-stage voltage reduction, so that the linear voltage difference is reduced, the power supply efficiency and stability are improved, the service life of a product is prolonged, and the stability requirement of people on a gateway is met.

It should be noted that, in the embodiment of the present application, the working frequency band of the communication module 130 is not specifically limited, for example, the communication module 130 may work in a Global System for Mobile Communications (GSM) frequency band, or the communication module 130 may work in a Wideband Code Division Multiple Access (WCDMA) frequency band, or in another example, the communication module 130 may work in a Long Term Evolution (Long Term Evolution, LTE) frequency band.

It should be noted that the communication module 130 may operate at a frequency end alone, for example, the communication module 130 may operate at a GSM frequency band alone, or, for example, the communication module 130 may operate at a WCDMA frequency band alone, or, for example, the communication module 130 may operate at an LTE frequency band alone. In addition, the communication module 130 may also simultaneously operate in multiple frequency bands, for example, the communication module 130 may simultaneously operate in a GSM frequency band and a WCDMA frequency band, and for example, the communication module 130 may simultaneously operate in a WCDMA frequency band and an LTE frequency band, which is not specifically limited in this embodiment of the present application.

Referring to fig. 1, it can be understood that the communication module 130 includes a wireless communication module 131, and the wireless communication module 131 is connected to the control module 120 and can be controlled by the control module 120 to select an appropriate frequency band for communication based on signal strengths in different frequency bands, so as to ensure stability of communication.

Specifically, the wireless communication module 131 includes an ME909s-821 module, which can operate in a Frequency Division Duplex (FDD-LTE) band, a Time Division Duplex (TDD-LTE) band, a WCDMA band, a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) band, and a GSM band.

Specifically, the wireless communication module 131 may further include an SRM815 module, which is capable of operating in a 5th generation wireless systems (5G) frequency band.

Referring to fig. 1, it can be understood that the communication module 130 further includes a wired communication module 132, the wired communication module 132 is connected to the control module 120, by providing the wired communication module 132, the multiband communication gateway 100 of the present application can be connected to a core network based on an ethernet protocol, and the stability of communication can be ensured by connecting to the core network in a wired manner.

It should be noted that, the multiband communication gateway 100 of the present application may be connected to the core network through the wireless communication module 131 alone, or connected to the core network through the wired communication module 132 and the wireless communication module 131 at the same time, which is not limited in this embodiment of the present application.

Specifically, the wired communication module 132 includes a W5500 module.

It can be understood that the multiband communication gateway 100 of the present application is connected to the core network based on MQTT protocol, and MQTT protocol ensures reliable data transmission in a low-bandwidth high-latency network, thereby further improving communication stability and meeting the stability requirement of people for gateway communication.

Referring to fig. 1, it can be understood that the multiband communication gateway 100 of the present application includes a power management module 140, the power management module 140 is connected to the interface module 110, the communication module 130 and the control module 120, and is configured to access an external dc power source to supply power to the interface module 110, the communication module 130 and the control module 120, the power management module 140 adopts a linear voltage stabilization chip to perform multistage voltage reduction, thereby reducing linear voltage difference, improving power supply efficiency and stability, further prolonging service life of a product, and satisfying stability requirements of people on the gateway.

Specifically, referring to fig. 1, the linear voltage stabilization chip includes a first linear voltage stabilization chip 142 for stepping down the external dc power to a first voltage and a second linear voltage stabilization chip 144 for stepping down to a second voltage, the first linear voltage stabilization chip 142 being connected to the power management module, the second linear voltage stabilization chip 144 being connected to the first linear voltage stabilization chip 142. The first voltage regulation chip can reduce the voltage of the external dc power supply to 5V, and the second linear voltage regulation chip 144 can further reduce the voltage of 5V output by the first linear voltage regulation chip 142 to 3.8V and 3.3V again.

Specifically, the first linear voltage regulation chip 142 adopts an LM2596 chip, and a fuse is further arranged between an external direct-current power supply and a power input end of the LM2596 chip to protect the power supply chip from overvoltage and overcurrent, so that the service life of the chip is prolonged. A voltage dependent resistor is arranged in front of the power supply input end of the LM2596, and when the input voltage exceeds 47V, the voltage dependent resistor is conducted, high voltage is released to the ground, and then the circuit is protected from being damaged.

Specifically, the second linear voltage stabilizing chip 144 employs a TPS63020 chip, and bypass capacitors with different capacitance values are connected in parallel behind the power output end of the TPS63020 chip, and these bypass capacitors play a good role in filtering on the one hand, and on the other hand, can enhance the supply capability when a large current is required.

Specifically, the linear regulator chip further includes a third linear regulator chip 145 for stepping down the external dc power supply to a third voltage, the third linear regulator chip 145 is connected to the second linear regulator chip 144, and the third linear regulator chip 145 can step down the 3.3V voltage output from the second linear regulator chip 144 to 1.8V again.

Specifically, the third linear regulator chip 145 employs the AMS1117 chip.

It can be understood that the multi-band communication gateway 100 of the present application can work under different communication frequency bands, the control module 120 can control the communication module 130 to select a suitable frequency band for communication according to the signal strength under different frequency bands to ensure the stability of communication, the multi-band communication gateway 100 of the present application is connected to the core network based on the MQTT protocol, and the MQTT protocol ensures that data transmission can be reliably performed under a low-bandwidth high-latency network, thereby further improving the stability of communication and satisfying the stability requirement of people for gateway communication.

Referring to fig. 1, the power management module 140 includes a battery assembly 143, and the battery assembly 143 is connected to the first linear regulator chip 142 and can be charged by the voltage output from the first linear regulator. Through setting up battery pack 143, the multiband communication gateway 100 of this application can switch to battery pack 143 under the circumstances that external power source is cut off and supply power, has improved the stability of work, can be applicable to more use scenes, like the open-air operational environment that the operating mode is abominable, easily cut off the power supply.

Specifically, the battery assembly 143 adopts a lithium battery, which is connected to a boost circuit, the boost circuit includes an FP6277 chip, and the FP6227 chip can reduce the generation of surge current and plays a role of a protection circuit.

It is understood that the power management module 140 further includes a photovoltaic module, and the photovoltaic module is connected to the battery assembly 143 and is capable of charging the battery assembly 143. By arranging the photovoltaic power generation module connected with the battery module 143, the multi-band communication gateway 100 of the present application can have higher reliability, and can still normally operate for a long time under a working environment in which an external power supply is cut off for a long time or the external power supply is not connected.

Referring to fig. 1, the power management module 140 further includes a power switching component 141, and the power switching component 141 is connected to the first linear regulator chip 142 and the battery component 143, respectively, for switching the power input to an external power source or the battery component 143. Because the power management module 140 of this application has two power inputs simultaneously, one is to insert external power, and one is battery pack 143, in order to avoid two power supplies to the circuit power supply simultaneously, avoided personnel's direct operation simultaneously, promoted degree of automation, and then promoted the convenience of using.

It is understood that the multiband communication gateway 100 of the present application further includes a human-computer interaction module, and the human-computer interaction module is connected to the control module 120. Through setting up the human-computer interaction module, the gateway can be with information such as the operating condition of self, the data of transmission show locally directly perceivedly, can be convenient for simultaneously the staff at local to gateway input control instruction, promoted the convenience of using.

Specifically, the man-machine interaction module comprises a touch screen, the touch screen can display the working state of the gateway, the received information and the sent information, in addition, the input can be received in a touch mode, the feedback is given through screen display, and the convenience in the installation and use process is improved.

The present application further provides a power monitoring system 200, which includes the multiband communication gateway 100 and the data acquisition module 210 as in the above embodiments, wherein the data acquisition module 210 is connected to the communication gateway, and is used for acquiring data and sending the acquired data to the gateway. The utility model provides an electric power monitored control system 200 can be connected to the core network with different communication frequency channels, it can select suitable frequency channel to communicate in order to guarantee the stability of communication according to the signal strength under the different frequency channels, electric power monitored control system 200 of this application is connected to the core network based on the MQTT protocol, the MQTT protocol has guaranteed still can carry out data transmission reliably under the network of low bandwidth high delay, consequently, the stability of communication has further been promoted, people have satisfied the stability demand of gateway communication.

It is understood that the data acquisition module 210 is connected to the interface module 110 via a bus based on the Modbus485 protocol. The Modbus485 protocol supports various types of electrical interfaces, and is high in compatibility, wide in application and easy to deploy and maintain.

Specifically, the data acquisition module 210 and the interface module 110 may be connected by using an RS232 bus.

Specifically, the data acquisition module 210 and the interface module 110 may be connected by using an RS485 bus.

It should be noted that, the embodiment of the present invention does not specifically limit the connection mode between the data acquisition module 210 and the interface module 110, and the connection mode may be a wired connection mode, such as an RS232 bus or an RS485 bus, or a wireless connection mode, such as a bluetooth mode or a WiFi mode.

It is understood that the data collection module 210 can be coupled to the power management module 140 to provide power through the power management module 140.

It should be noted that the data acquisition module 210 may be connected to the power management module 140 for supplying power, or may be separately connected to an external power source for supplying power, which is not specifically limited in this application.

It is understood that the data acquisition module 210 includes a Human-Machine Interface (HMI) terminal. The HMI terminal can visually display the working state of the data acquisition module 210 and the transmitted data and other information locally, and meanwhile, the HMI terminal can facilitate the working personnel to input control instructions to the gateway locally, so that the use convenience is improved.

Since the power monitoring system 200 in this embodiment and the multiband communication gateway 100 in the above embodiment belong to the same inventive concept, the remaining specific implementation of the power monitoring system 200 in this embodiment may refer to the specific implementation of the multiband communication gateway 100 in the above embodiment, and in order to avoid redundancy, the remaining specific implementation of the power monitoring system 200 in this embodiment is not described herein again.

The above-described embodiments of the apparatus are merely illustrative, wherein components illustrated as separate parts may or may not be physically separate, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A multi-band communication gateway, comprising:

the interface module is used for exchanging data with the local terminal;

2. The multi-band communication gateway of claim 1, wherein the linear regulator chip comprises a first linear regulator chip for stepping down an external dc power supply to a first voltage and a second linear regulator chip for stepping down to a second voltage, the first linear regulator chip being connected to the power management module, the second linear regulator chip being connected to the first linear regulator chip.

3. The multi-band communication gateway of claim 2, wherein said linear regulator chip further comprises a third linear regulator chip for stepping down an external dc power supply to a third voltage, said third linear regulator chip being connected to said second linear regulator chip.

4. The multi-band communication gateway of claim 1, wherein the communication module comprises a wireless communication module, the wireless communication module is connected to the control module, and the wireless communication module is capable of operating solely in at least one of a GSM band, a WCDMA band, an LTE band, and a 5G communication band.

5. The multi-band communication gateway of claim 1, wherein said communication module comprises a wired communication module, said wired communication module being connected to said control module.

6. The multi-band communication gateway of claim 1, wherein said power management module comprises a battery pack, said battery pack being connected to said interface module, said communication module and said control module.

7. The multi-band communication gateway of claim 6, wherein said power management module further comprises a power switching component coupled to said battery component for switching a power input to an external power source or said battery component.

8. A power monitoring system comprising a data acquisition module and a multi-band communication gateway as claimed in any one of claims 1 to 7, wherein the data acquisition module is connected to the gateway.

9. The power monitoring system according to claim 8, wherein the data acquisition module is connected with the interface module through a bus based on a Modbus485 protocol.

10. The power monitoring system of claim 9, wherein the data acquisition module comprises an HMI terminal.