CN217643586U - Multinuclear energy gateway device based on internet of things - Google Patents
Multinuclear energy gateway device based on internet of things Download PDFInfo
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- CN217643586U CN217643586U CN202123313143.2U CN202123313143U CN217643586U CN 217643586 U CN217643586 U CN 217643586U CN 202123313143 U CN202123313143 U CN 202123313143U CN 217643586 U CN217643586 U CN 217643586U
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Abstract
The utility model discloses a multinuclear energy gateway device based on internet of things belongs to energy management and control technical field. The system comprises a bus board card, and a power supply board card, a CPU board card, an input board card, an output board card, an alternating current sampling board card, a wireless communication board card and a wired communication board card which are connected to the bus board card; the bus board card is used for providing a transmission channel for data transmission and information interaction; the power board card is connected with an external power supply; the CPU board card supports MQTT protocol; the input board card and the output board card carry out data interaction with the CPU board card through an I/O data bus inside the input board card and the output board card; the alternating current acquisition board card adopts a bipolar AD conversion chip; the wireless communication board supports a local LORA network communication function and supports a 4G communication mode. The utility model provides a multinuclear energy gateway device based on internet of things, it can realize that multiple data acquisition device counts into the function in the building system, supports multiple interface and wireless access mode, provides the access distant place energy main website management system simultaneously.
Description
Technical Field
The utility model relates to a multinuclear energy gateway device based on internet of things belongs to energy management and control technical field.
Background
At present, along with the rapid development of urbanization, urban construction is gradually perfected, the power demand of various energy sources is more and more, and meanwhile, the nation issues the carbon peak reaching and carbon neutralization energy management targets, so that more attention is paid to energy management and control, and reasonable energy use and energy management are particularly important.
Various energy sources in the current building automation are still in an open management mode at present, and for the systems such as lighting, air conditioning and power, the energy sources are only limited in consumption statistics, and the energy source use distribution rate and the reasonable energy source distribution are also deficient. The main reason for this phenomenon is that the current data is of various types and is not managed and analyzed comprehensively and uniformly.
On the other hand, the current energy controller can only realize single data type collection, multiple collection devices are needed for multi-type data of one building or an office building, each collection device is connected to multiple remote master stations for management, and data cannot be shared among the systems, so that comprehensive statistics and analysis cannot be performed on various data.
The connection protocols of various energy collection devices and a remote main station are different, so that the remote main station needs to support the communication protocols of various manufacturers, various complicated communication protocols are generated at the remote main station, and the data transmission efficiency is reduced. On the other hand, the power supply quality fluctuates due to the access of the current distributed new energy power supply, so that the method is particularly important for monitoring the current power quality.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a multinuclear energy gateway device based on internet of things can realize inserting all kinds of collection equipment to all kinds of energy collection device in the building, gathers data wherein, transmits distant place energy management system main website through unified to last transmission agreement accessible ethernet interface or wireless 4G interface simultaneously, realizes the collection control and the management of all kinds of energy data under the current building.
The utility model discloses the technical problem that will solve takes following technical scheme to realize:
a multi-core energy gateway device based on the Internet of things technology comprises a bus board card, and a power supply board card, a CPU board card, an input board card, an output board card, an alternating current sampling board card, a wireless communication board card and a wired communication board card which are connected to the bus board card;
the bus board card is used for providing a transmission channel for data transmission and information interaction;
the power supply board card is connected with an external power supply to supply power to the power distribution terminal device;
the CPU board card supports an MQTT protocol and can be accessed to a remote cloud system management center to realize the function of uploading edge calculation data;
the input board card and the output board card carry out data interaction with the CPU board card through an I/O data bus inside the input board card and the output board card;
the alternating current acquisition board card adopts a bipolar AD conversion chip, can acquire voltage and current signals of a current power supply system and calculate voltage deviation on a circuit according to the acquired signals, and the voltage and current multi-harmonic data are used for providing an electric energy quality analysis basis;
the wireless communication board card supports a local LORA network communication function, a 4G communication mode and a WIFI network communication mode.
As a preferred example, the wired communication board card is connected with 8 paths of RS485 serial ports and 4 paths of 10/100M ethernet interfaces; because a general CPU does not have 8 hardware serial ports, the CPU is generated in an extension mode of an SPI extension UART, and a hardware circuit which simultaneously supports RS232 and RS485 compatibility is designed under the condition that field 232 and 485 equipment types exist. In addition, an EMC protection device is added on the hardware circuit and used for dealing with the complex and changeable electrical operation environment on the site.
As a preferred example, the wireless communication board is provided with 1 LORA wireless network interface and 1 4G transmission interface.
As a preferred example, the multi-core energy transportation gateway device further includes a liquid crystal display panel and a key input panel connected to the bus board, where the liquid crystal display panel is used to display an internal menu and current monitoring information of the power distribution device; the key input board is used for receiving control parameters input by a user and sending the control parameters to the CPU board card.
As a preferable example, the open-in interface arranged on the open-in board card is 16-80 paths, and can be used for collecting field signal open-type equipment.
As a preferred example, the output interface provided on the output board card is 4-64 paths, and is used for controlling a device using an input signal as a control signal on the site.
As a preferred example, the AC acquisition board card adopts an AD7606 bipolar AD chip.
As a preferred example, the power supply board card has wide power supply input capacity, and the power supply board card can realize 120-250V alternating current voltage and 24-48V direct current voltage input.
The utility model has the advantages that:
the utility model provides a multinuclear energy gateway device that possesses internet of things, it can realize that all kinds of energy collection device insert all kinds of collection equipment with RS485 serial ports, network interface and wireless LORA interface mode in to the building, gather wherein data, transmit distant place energy management system main website through unified to last transmission agreement accessible ethernet interface or wireless 4G interface simultaneously, realize the collection control and the management of all kinds of energy data under the current building.
Drawings
Fig. 1 is a schematic structural diagram of a multi-core energy gateway device based on the internet of things technology provided by the present invention;
fig. 2 is a schematic diagram of an on-site application of the multi-core energy gateway device based on the internet of things technology provided by the present invention;
FIG. 3 is a diagram of an integrated RS232/RS485 adaptive serial port expansion circuit.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further described with reference to the following specific drawings and embodiments.
Example (b):
as shown in fig. 1, the embodiment of the utility model provides a multinuclear energy gateway device based on internet of things, it is including bus integrated circuit board, power integrated circuit board, CPU integrated circuit board, exchange and gather the integrated circuit board, open into the integrated circuit board, open out integrated circuit board, wireless communication integrated circuit board, wired communication integrated circuit board and liquid crystal display integrated circuit board.
The power supply board card is inserted on the bus board card, and the power supply board card is connected with an external alternating current power supply or a direct current power supply. In this embodiment, the power board has a wide power input capability, which can realize 120-250V ac voltage and 24-48V dc voltage input.
The CPU board card, the input board card, the output board card, the wireless communication board card, the wired communication board card and the liquid crystal display board card are all plugged on the bus board card, and data interaction is carried out through a signal transmission channel provided by the bus board card.
The AC sampling board card comprises 1 AD7606 sampling chip.
And the input board card and the output board card carry out data interaction with the CPU board card through an internal I/O data bus. In this embodiment, the access board includes 16 access ports with a photoelectric isolation function, and accesses the control output signal of the external data acquisition device. The opening board card comprises 4 paths of opening ports with photoelectric isolation. For providing plant control functions to a device having a control signal input at a site.
The wireless communication board card is provided with a 4G communication interface and can be in communication connection with a remote energy management main station, and the LORA communication interface is used for accessing equipment with LORA communication on site in a wireless communication mode and receiving various energy control data acquired by the equipment.
The liquid crystal display panel performs data interaction with the CPU board card through an internal serial port communication line, receives control parameters input by a user, and sends the control parameters to the CPU board card. The display device is used for displaying an internal menu of the energy device and data information of each accessed external acquisition device.
In this embodiment, the liquid crystal display panel is provided with 3 general LED indicators, which are a device operation status indicator, a device self-checking indicator, and a device alarm indicator, and 32 fault lights and signal operation lights of the external device, and are used to indicate whether the access device is currently in a communication fault state.
The CPU board card is used for realizing the internal logic of the power distribution device. In this embodiment, the CPU board card uses a CPU of a XILINX company, a model of which is ZYNQ7010, as a main processor, the CPU is a multi-core heterogeneous architecture of dual-core ARM CORTEXA9+ FPGA, one A9 core is used for realizing a communication data transmission function of the energy gateway device, including communicating with an upper master station, performing local LORA and 4G wireless communication, receiving liquid crystal display panel data, performing data communication with an external device through an RS485 serial port or an ethernet interface, and storing historical event information. The other A9 core is used for realizing the real-time acquisition and control functions of the energy gateway device, acquiring the access signals of various devices and controlling other accessible acquisition devices of the access signals through the removal interface. And meanwhile, AD7606 data are collected and used for calculating the correlation between the voltage and the current of the current power supply and the quality of electric energy. Because A9 has a powerful data operation function, it can realize data operation in the aspect of power quality, calculate higher harmonics, voltage distortion rate and the like.
Fig. 2 shows a connection schematic diagram of the energy gateway device in field use. Firstly, the energy gateway device can access three-phase voltage and three-phase current signals of a power supply system downwards through an alternating current acquisition board card. The internal CPU converts the acquired analog signals into digital signals through an AD7606 chip and sends the digital signals to an A9 core real-time processing unit of the main CPU, voltage, current and power data are calculated according to the acquired analog signals, voltage deviation, voltage and current distortion and harmonic data of each voltage and current are calculated at the same time, and multiple harmonic analysis is carried out to generate electric energy quality analysis data. The number of the input board card and the output board card can be expanded in a plugging mode. Possess the LORA network communication function on the wireless communication integrated circuit board, can establish LORA communication host computer node signal, on other outside equipment that support the LORA access can be connected to energy gateway device, realize the data interaction function.
The energy gateway device can be connected with the optical fiber network through the wired network port, and can select the 4G wireless network to transmit data under the condition that the optical fiber line is not laid again in some cases.
As shown in fig. 3, the 8-channel RS485 interface can be externally connected to various data acquisition devices supporting communication of the RS485 interface, and is used for acquiring various energy acquisition terminals in the current environment, such as terminal data of an electric meter, a water meter, and the like.
The optical coupler T1 is connected with a UART interface SPI _ UART _ TX expanded from the SPI, the optical coupler is used for isolating electric signals of external connection equipment and transmitting physical signals through optical coupling, and the damage of an energy gateway caused by the fact that on-site electric interference is transmitted into the energy gateway from access equipment is avoided. The output signal of the U4 isolation power supply module is used as the power supply of the optocoupler T1, so that the externally connected physical signal and the externally connected power supply signal are physically isolated. The output end TX and the input end RX of the slave optocoupler are respectively connected to the RS232 transceiver U1 and the RS485 transceiver U2, and C1-C6 capacitors around the U1 play a role in generating vibration signals and provide signal input for receiving and transmitting serial port data inside the U1. D1 serves as the RX serial signal of U1 for the purpose of unidirectionally transmitting signals, and prevents signal inversion from affecting the CPU. The signal output end of the U1 is respectively connected with resistors R1, R2, R5 and R6, and the 4 resistors are used as anti-surge resistors to absorb surge energy signals generated by interference on site, so that the U1 chip is protected from safe operation. Meanwhile, 3 TVS diodes V1, V2 and V3 are added between the output TX and RX signal lines of U1. V1 plays the effect of electrostatic protection to sending signal line, and V3 plays the effect of electrostatic protection to receiving signal line, and V2 plays the effect of electrostatic protection between sending signal line and the receiving signal line. The other end of the signal output end of each of the optocouplers T1 and T2 is connected to the U2 device, and the U3 device is used as an RS485 automatic receiving and sending control signal, so that an IO pin for controlling RS485 direction control is saved, and meanwhile, independent program control receiving and sending state switching is not needed on software. The Y output pin of U3 is connected to RE and DE pins of U2, and similarly, V4, V5 and V6 also play the role of electrostatic protection among A line, B line and AB line of RS485 bus. R15, R16, R20 and R21 are anti-surge resistors on the RS485 bus and are used for absorbing surge energy when surge signals on the A line and the B line interfere with each other, so that the RS485 bus is protected. R22 is a pull-up resistor of an A line, R14 is a pull-down resistor of a B line, and under the normal condition, when data transmission is not carried out on the RS485 bus, as TX is defaulted to be a high signal, Y output after U3 is output to be a low level signal, U2 is defaulted to be a data receiving state and can be used for receiving data on the RS485 bus at any time. When the TX starts to transmit a signal, and the TX transmits a high level, the logic level is the high level of RS485 because the previously analyzed case where U2 is in the receiving state, but the a line of RS485 has a pull-up resistor and the B line has a pull-down resistor. When the TX sends a low level signal, the Y output of U3 is a high level signal, U2 is in a data sending state, and the data sending pin of U2 defaults to an external low level signal, so the RS485 bus sends a logic low signal. Thus, the function of automatic transceiving conversion of the RS485 bus is realized. When the external connection is an RS232 device, R8 and R13 are connected, keeping R7 and R12 disconnected. If R7 and R12 are connected when the RS485 device is externally connected, R8 and R13 are kept disconnected. Therefore, the RS485 circuit and the RS232 circuit can be switched at any time according to the type of the external equipment on the hardware, and the hardware design does not need to be changed.
The utility model provides a pair of multinuclear energy gateway device that possesses internet of things, it can realize that all kinds of energy collection device insert all kinds of collection equipment with the RS485 serial ports in the building, network interface and wireless LORA interface mode, gather data wherein, transmit distant place energy management system main website through unified to last MQTT transmission protocol accessible ethernet interface or wireless 4G interface simultaneously, realize the collection control and the management of all kinds of energy data under the current building. Meanwhile, various devices in the building are controlled by removing signals or protocol communication. The access of various terminal devices, the data transfer of the unified protocol and the control and management of various field devices are realized. The remote energy management system is accessed to a plurality of acquisition equipment protocols, the configuration complexity of the remote main station system is reduced, and meanwhile, advanced application analysis can be performed in the energy gateway according to various acquired data. And simultaneously, analyzing the power quality of the current power supply system.
The foregoing text describes and illustrates the principles, principal features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A multi-core energy gateway device based on the Internet of things technology is characterized by comprising a bus board card, and a power board card, a CPU board card, an input board card, an output board card, an alternating current sampling board card, a wireless communication board card and a wired communication board card which are connected to the bus board card;
the bus board card is used for providing a transmission channel for data transmission and information interaction;
the power supply board card is connected with an external power supply;
the CPU board card supports an MQTT protocol;
the input board card and the output board card perform data interaction with the CPU board card through an I/O data bus inside the input board card and the output board card;
the alternating current acquisition board card adopts a bipolar AD conversion chip;
the wireless communication board card supports a local LORA network communication function and supports a 4G communication mode.
2. The multi-core energy gateway device based on the internet of things technology as claimed in claim 1, wherein the wired communication board card is connected with 8 RS485 serial ports and 4 Ethernet interfaces.
3. The multi-core energy gateway device based on the internet of things technology according to claim 1, wherein the wireless communication board card is provided with 1 LORA wireless network interface and 1 4G transmission interface.
4. The multi-core energy gateway device based on the internet of things technology as claimed in claim 1, further comprising a liquid crystal display panel and a key input panel connected to the bus board.
5. The multi-core energy gateway device based on the internet of things technology of claim 1, wherein the number of the access interfaces arranged on the access board card is 16-80.
6. The multi-core energy gateway device based on the internet of things technology of claim 1, wherein the number of the outgoing interfaces provided on the outgoing board card is 4-64.
7. The multi-core energy gateway device based on the internet of things technology as claimed in claim 1, wherein the ac acquisition board card adopts an AD7606 bipolar AD chip.
8. The multi-core energy gateway device based on the internet of things technology of claim 1, wherein the power board inputs an alternating current voltage ranging from 120V to 250V and inputs a direct current voltage ranging from 24V to 48V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313143.2U CN217643586U (en) | 2021-12-27 | 2021-12-27 | Multinuclear energy gateway device based on internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313143.2U CN217643586U (en) | 2021-12-27 | 2021-12-27 | Multinuclear energy gateway device based on internet of things |
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| Publication Number | Publication Date |
|---|---|
| CN217643586U true CN217643586U (en) | 2022-10-21 |
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| CN202123313143.2U Active CN217643586U (en) | 2021-12-27 | 2021-12-27 | Multinuclear energy gateway device based on internet of things |
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- 2021-12-27 CN CN202123313143.2U patent/CN217643586U/en active Active
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