Novel state grid I type concentrator

Abstract

The utility model provides a novel state grid I model concentrator, which comprises a power supply, a metering unit, an MCU mainboard, a remote signaling unit, an uplink communication unit, a downlink communication unit, a display and key unit and an RTC unit, the metering unit, the remote signaling unit, the uplink communication unit, the downlink communication unit, the display and key unit and the RTC unit are all connected with the MCU mainboard, and the power supply is used for supplying power. The concentrator has the advantages of being stable in hardware performance, high in performance, low in power consumption and capable of supporting multiple channels in uplink and downlink communication, and the problems that in the prior art, a concentrator is low in performance, low in transmission efficiency, high in power consumption and high in failure rate are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of concentrator technology, and in particular to a novel State Grid Type I concentrator. Background Technology

[0002] With the increasing importance of electricity resources, establishing an information-based, automated, and interactive smart grid has become the direction of power system development. Under this trend, more and more equipment designed and developed based on public or private protocols is being deployed into the power grid system, increasing the difficulty of establishing a smart grid communication network and posing challenges to the reliability, security, and stability of the entire smart grid. To coordinate and manage the communication network of the entire smart grid, a universal, stable, and high-performance multi-protocol concentrator is urgently needed.

[0003] Currently, existing concentrators cannot simultaneously meet the above conditions. Therefore, in response to the real-time sensing and monitoring of power status and the electricity metering needs of the power system, communications industry, and construction industry, a new type of concentrator is proposed, which integrates measurement, communication, and control functions to improve the real-time sensing and management capabilities after new energy is connected to the grid. Utility Model Content

[0004] To address the aforementioned issues, this utility model discloses a novel State Grid Type I concentrator, which boasts advantages such as stable hardware performance, high performance, low power consumption, and multi-channel support for uplink and downlink communication. It effectively solves the problems of low performance, low transmission efficiency, high power consumption, and high failure rate of existing concentrators.

[0005] The specific plan is as follows:

[0006] A novel State Grid Type I concentrator is characterized by comprising a power supply, a metering unit, an MCU motherboard, a remote signaling unit, an uplink communication unit, a downlink communication unit, a display and button unit, and an RTC unit. The metering unit, remote signaling unit, uplink communication unit, downlink communication unit, display and button unit, and RTC unit are all connected to the MCU motherboard. The power supply provides power. The uplink communication unit has 4G, RJ-45 interface, infrared, RS232, Bluetooth, and RS485II communication functions, used for remote data reading, remote control, and remote upgrades. The downlink communication unit has RS-485I, RS-485II, HPLC, CAN, and low-power wireless communication functions, used for connecting to meter data acquisition equipment to achieve real-time acquisition and local upgrades of meter metering data.

[0007] Furthermore, the power supply is connected to the MCU motherboard, adopts a wide voltage range input of 127-500VAC, and has a built-in dual-channel switching power supply. The main winding is 12V and 5V, and the secondary winding is an isolated 12V. The main winding supplies power to the remote communication unit, RTC unit, MCU, sampling unit, display unit, storage unit, and local communication unit, while the secondary winding supplies power to the local interface unit.

[0008] Furthermore, the metering unit uses current and voltage sensors and metering chips to sample and process the voltage and current signals of the connected load device. The MCU motherboard performs analysis and processing to calculate the voltage, current, active power, reactive power, and apparent power signals, and outputs them through the optical pulse interface.

[0009] Furthermore, the MCU motherboard adopts a high-performance, low-power, quad-core embedded basic hardware and software platform based on the A7 and M33 architecture, with rich peripheral interfaces, a main operating frequency of up to 1GHz, a secure operating system, and high-performance computing capabilities, enabling real-time processing and communication of various high-speed signals.

[0010] Furthermore, the remote signaling unit adopts 3-channel DI dry node input, which converts the closing or opening of the optocoupler into low or high level and sends it to the MCU main board of the concentrator, while monitoring the alarm status, switch position or valve position status information of 3 devices.

[0011] Furthermore, the infrared interface meets the requirements of section 4.2 Modulated infrared optical port in DL / T645-2007; the Bluetooth interface meets the BLE 5.0 requirements and supports simultaneous connection of 2 master devices and 3 slave devices.

[0012] Furthermore, the CAN interface supports transmission rates of 10kbps, 25kbps, 50kbps, 125kbps, 250kbps, 500kbps, and 1Mbps, and supports the CAN2.0B protocol specified by ISO 11898.

[0013] Furthermore, the display and button unit is used to realize the real-time display of load power metering data and the display of power meter equipment status information, and can perform centralized data collection according to the button configuration.

[0014] Furthermore, the RTC unit uses an IIC clock chip, which features a wide voltage input range, low power consumption, high precision real-time clock, built-in temperature-compensated crystal oscillator, and provides calendar and second interrupt functions, and can work continuously for no less than 10 years.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. Regardless of whether any two phases of the three-phase power supply of the meter are normal, the main and auxiliary winding power can be stably output, which can ensure the stable power supply of the concentrator and improve the reliability and intelligence of the power acquisition system.

[0017] 2. Simultaneously, it enables real-time sensing of the status of 3-channel DI switch inputs and remote control of 3-channel DO switch equipment, providing important support for the regulation of various switches or valve equipment after the grid connection of new energy.

[0018] 3. The 4G communication function enables remote data acquisition, remote control, and remote upgrades, improving the efficiency of on-site operation and maintenance management of power equipment.

[0019] 4. The RS485 communication channel implements dual-protocol adaptive function, supports the access of multiple communication protocol devices in the field, and avoids the tediousness of manually setting parameters and debugging, saving labor costs.

[0020] 5. The overall structure adopts a modular design, which has the advantages of small size and easy installation. It can be widely used in the internal power assessment and monitoring of industrial enterprises, hotels, schools and large public buildings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the working principle of this application.

[0022] Figure 2 This is a schematic diagram of the low-voltage terminals in this application.

[0023] List of reference numerals in the attached diagram:

[0024] Power supply (1-1), metering unit (1-2), MCU motherboard (1-3), remote signaling unit (1-4), uplink communication unit (1-5), downlink communication unit (1-6), display and button unit (1-7), RTC unit (1-8). Detailed Implementation

[0025] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] As shown in the figure, this utility model provides a novel State Grid Type I concentrator, characterized in that it includes a power supply (1-1), a metering unit (1-2), an MCU motherboard (1-3), a remote signaling unit (1-4), an uplink communication unit (1-5), a downlink communication unit (1-6), a display and button unit (1-7), and an RTC unit (1-8). Units (1-8) are all connected to the MCU motherboard (1-3). The power supply (1-1) is used for power supply. The uplink communication unit (1-5) has 4G, RJ-45 interface, infrared, RS232, Bluetooth and RS485II communication functions, which are used to realize remote data reading, remote control and remote upgrade. The downlink communication unit (1-6) has RS-485I, RS-485II, HPLC, CAN and low power wireless communication functions, which are used to connect to the electricity meter data acquisition equipment to realize real-time acquisition and local upgrade of electricity meter measurement data.

[0027] In this embodiment, the power supply (1-1) is connected to the MCU motherboard (1-3), adopts a wide voltage range input of 127-500VAC, and has a built-in dual-channel switching power supply with a main winding of 12V and 5V and an isolated 12V secondary winding.

[0028] In this embodiment, the metering unit (1-2) uses current and voltage sensors and metering chips to sample and process the voltage and current signals of the connected load device. The MCU motherboard (1-3) performs analysis and processing to calculate the voltage, current, active power, reactive power and apparent power signals, and outputs them through the optical pulse interface.

[0029] In this embodiment, the remote signaling unit (1-4) adopts 3-channel DI dry node input. It converts the closing or opening of the optocoupler into low or high level and sends it to the MCU main board (1-3) of the concentrator. At the same time, it monitors the alarm status, switch position or valve position status information of 3 devices.

[0030] In this embodiment, the infrared interface meets the requirements of section 4.2 Modulated infrared optical port in DL / T645-2007; the Bluetooth interface meets the BLE 5.0 requirements and supports simultaneous connection of 2 master devices and 3 slave devices.

[0031] In this embodiment, the CAN interface supports transmission rates of 10kbps, 25kbps, 50kbps, 125kbps, 250kbps, 500kbps, and 1Mbps, and supports the CAN2.0B protocol specified by ISO 11898.

[0032] In this embodiment, the display and button unit (1-7) is used to realize the real-time display of load power metering data and the display of power meter equipment status information, and can perform centralized data collection according to the button configuration.

[0033] In this embodiment, the RTC unit (1-8) adopts an IIC clock chip, which has a wide voltage input range, low power consumption, high precision real-time clock, built-in temperature-compensated crystal oscillator, and also provides calendar and second interrupt functions, and can work continuously for no less than 10 years.

[0034] In this embodiment, the low-voltage terminals are two horizontal terminal blocks: one with an 8-pin connector and the other with a 10-pin connector. The 8-pin terminal block is a communication terminal, designated as active power, reactive power, second pulse, common terminal, 485II-A, 485II-B, 485I-A, and 485I-B. The 10-pin terminal block is a remote signaling terminal, divided into five groups: the first group is for gate node signals; the second group is for 12V power output, with a voltage range of 12V±1V and an output current of not less than 300mA; the third group is for the CAN communication interface; the fourth group is for remote signaling 2 signals; and the fifth group is for remote signaling 1 signals. The two low-voltage terminals are connected to a standard copper plate via a ribbon cable, serving as detection ports.

[0035] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A novel State Grid Type I concentrator, characterized in that, The device includes a power supply (1-1), a metering unit (1-2), an MCU motherboard (1-3), a remote signaling unit (1-4), an uplink communication unit (1-5), a downlink communication unit (1-6), a display and button unit (1-7), and an RTC unit (1-8). The metering unit (1-2), remote signaling unit (1-4), uplink communication unit (1-5), downlink communication unit (1-6), display and button unit (1-7), and RTC unit (1-8) are all connected to the MCU motherboard (1-3). The power supply (1-1) is used for power supply. The uplink communication unit (1-5) has 4G, RJ-45 interface, infrared, RS232, Bluetooth, and RS485II communication functions, which are used to realize remote data reading, remote control, and remote upgrade. The downlink communication unit (1-6) has RS-485I, RS-485II, HPLC, CAN, and low-power wireless communication functions, which are used to connect to the electricity meter data acquisition equipment to realize real-time acquisition and local upgrade of electricity meter metering data.

2. The novel State Grid Type I concentrator according to claim 1, characterized in that, The power supply (1-1) is connected to the MCU motherboard (1-3), and adopts a wide voltage range input of 127-500VAC. It has a built-in dual-channel switching power supply with a main winding of 12V and 5V and an isolated 12V secondary winding.

3. The novel State Grid Type I concentrator according to claim 1, characterized in that, The metering unit (1-2) uses current and voltage sensors and metering chips to sample and process the voltage and current signals of the connected load device. The MCU motherboard (1-3) performs analysis and processing to calculate the voltage, current, active power, reactive power and apparent power signals, and outputs them through the optical pulse interface.

4. A novel State Grid Type I concentrator according to claim 1, characterized in that, The remote signaling unit (1-4) adopts 3-channel DI dry node input. It converts the closing or opening of the optocoupler into low or high level and sends it to the MCU main board (1-3) of the concentrator. At the same time, it monitors the alarm status, switch position or valve position status information of 3 devices.

5. A novel State Grid Type I concentrator according to claim 1, characterized in that, The infrared interface of the uplink communication unit (1-5) meets the requirements of DL / T645-2007, section 4.2, for modulated infrared optical ports; the Bluetooth interface meets the BLE5.0 requirements and supports simultaneous connection of 2 master devices and 3 slave devices.

6. A novel State Grid Type I concentrator according to claim 1, characterized in that, The CAN interface of the downlink communication unit (1-6) supports transmission rates of 10kbps, 25kbps, 50kbps, 125kbps, 250kbps, 500kbps, and 1Mbps, and supports the CAN2.0B protocol specified by ISO 11898.

7. A novel State Grid Type I concentrator according to claim 1, characterized in that, The display and button unit (1-7) is used to realize the real-time display of load power metering data and the display of power meter equipment status information, and can perform centralized data collection according to the button configuration.

8. A novel State Grid Type I concentrator according to claim 1, characterized in that, The RTC units (1-8) use IIC clock chips, which have a wide voltage input range, low power consumption, high precision real-time clock, built-in temperature-compensated crystal oscillator, and also provide calendar and second interrupt functions.

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