[introduction] according to bureau of national energy resources energy field occupation standard was made 2020 trim plan, limited company of academy of science of Chinese electric power takes the lead drafted ” 12kV just a little the switch on column of second confluence whole set ” , ” second confluence becomes 12kV just a little ringer pot ” occupation standard of two electric power. Center of technology of distribution of courtyard of Chinese cable division organized switch of more than 30 distribution and distribution terminal mainstream to produce enterprise open in June 2021 the execution of two standards.

Be in 2 years of in the past, new rule applies in equipment port ceaselessly. The standard stipulates DTU uses double nucleus design, nucleus of divisional real time and administrative nucleus. Real time nucleus needs MCU to assure to finish protection and high speed sampling, administrative nucleus needs high-powered processor to realize condition to detect data is received and the analysis reachs communication. When hardware interface stipulates 3 aether net, multichannel strings together communication of mouth, 4G, country to add close chip, north closely to fight fixed position to be opposite, wait.

Limited company of science and technology of Beijing ambitious innovation is based on his group of giant electric power client, with Shanghai concerted effort of limited company of science and technology of Xian Ji semiconductor cooperates, designed a DTU/FTU with MCU of kernel of homebred high-powered RISC-V core of the smallest system board. The client is OK according to the country net standard secures exterior design, still can expand define a function oneself.

System of automation of electrified wire netting comprises by the following part commonly: Distribution advocate station, match an electron to stand (standing is inside transformer substation, optional match) , distribution distance terminal (FTU, DTU) with communication network. Distribution advocate the station is located in a city to attemper center, match electronic station deploy at 110kV/35kV transformer substation, child the station is in charge of corresponding with the power terminal unit such as DTU/FTU of region of place area under administration, advocate the station is in charge of standing with each stature between communication.

It is the smallest as follows systematic board block diagram:

The second level that considers a system answers requirement, electrified wire netting to wait for an element to the demand that can control independently, ambitious innovation designs a group and did not choose ARM Cortex-A nucleus to run the design train of thought of the operating system, chose the high-powered MCU HPM6750IVM of Xian Ji semiconductor however. This MCU is enclosed for BGA289, amount to 195 GPIO; The SRAM of 2M, of agile and optional capacity outside hang FLASH; In-house DSP is unit, support SIMD and DSP statement; RISC-V double kernel can accuse completely independently, advocate frequency 816M, achieved be as high as 9220CoreMark and the MCU performance record that are as high as 4651DMIPS. Chip job temperature is in – ℃ of 40 ℃ ~105, contented power industry is slashing working environment.

Net of Shuang Qianzhao aether: According to standard requirement, expanded all the way SPI turns aether net interface

Double USB interface: Support is patulous net mouth and outside hang 4G

17 string together a mouth: Satisfy requirement of the communication that string together a mouth

SPI of 4 high speed: Hang outside support add close chip, ADC chip, SPI to turn aether net chip

4 IIC: Sensor of real time clock, temperature and humidity is hanged to wait outside support

A 16bit ADC and 3 12bit ADC: Support the collection of imitate quantity

The program of FTU/DTU give typical examples of core board form a complete set includes give a demonstration of drive of database of system of file of inn of agreement of network of Rt-thread operating system, Lwip, Flash, this locality, corresponding peripheral, can huge help client simplifies development.

At the same time this plan still has the HPM6450IVM sheet with completely compatible hardware nuclear version, the end of on any account that can get used to all sorts of electric power neatly applies setting. Support FreeRTOS, RT-Thread, comfortable the letter that distributed lightweight covers a system.

War of Mo Ce of international situation wind and cloud-a stormy or unstable situation, trade grows in intensity, safety of electrified wire netting and stability are crucial, manufacturer of facilities of broad electric power is right homebred and own can accuse to replace demand more and more intense. Limited company of science and technology of Beijing ambitious innovation pays close attention to power industry for a long time, network of follow closely nation, south net occupation standard, offer program for manufacturer of numerous power facilities custom-built, yuan parts of an apparatus supplies the diversity service such as catenary.

At present limited company of science and technology of Beijing ambitious innovation is rolled out many homebred change plan, apply extensively at power facilities manufacturer, pass ” I love program network ” platform promotion, for power industry homebred change the contribution that made oneself. Understand design of plan of more power facilities to be able to contact me, xiong Feng 13925256340.

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