Daisy chain communication control method and device

A communication control and daisy chain technology, applied in the field of communication, can solve the problems of difference in power consumption of acquisition chips and inconsistency of remaining capacity of battery cells, and achieve the effect of improving consistency

Pending Publication Date: 2022-05-24
SUNGROW ENERGY STORAGE TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, the present invention provides a daisy chain communication control method and device, which solves the problem of inconsistency in the remaining capacity of battery cells due to differences in power consumption of acquisition chips, and improves the consistency of battery cells

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  • Daisy chain communication control method and device
  • Daisy chain communication control method and device
  • Daisy chain communication control method and device

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] After research, the inventor found that there are currently two daisy-chain communication transmission directions, such as figure 1 The shown daisy chain forward communication data transmission direction and the daisy chain reverse communication data transmission direction, S1 to S3 are AFE acquisition chips. Because the number of monomers and the number of temperature senses collected by the AFE acquisition chip are the same. ...

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Abstract

The invention provides a daisy chain communication control method and device, and the method comprises the steps: switching the daisy chain communication direction when the continuous communication time in the current daisy chain communication direction reaches a first preset time, enabling the forward communication duration of a daisy chain to be equal to the reverse communication duration of the daisy chain, enabling the sum of the power consumption of each AFE collection chip on the daisy chain to be the same, and enabling the power consumption of each AFE collection chip to be the same. Therefore, the battery cell energy consumed by each AFE acquisition chip due to work is the same, the problem that the residual capacity of the battery cell is inconsistent due to the power consumption difference of the acquisition chips is solved, and the consistency of the battery cell is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, and more particularly, to a daisy chain communication control method and device. Background technique [0002] In large-scale energy storage systems, in order to reduce system costs, a centralized BMS (Battery Management System) based on daisy-chain communication technology is widely used. The battery RACK in the BMS contains multiple battery packs, so multiple AFEs (Analog Front End, analog front end) acquisition chip. [0003] The power consumption of the AFE acquisition chip mainly includes ADC conversion power consumption, GPIO control power consumption, peripheral power consumption and communication power consumption. Since the ADC, GPIO configuration, control logic and peripherals of each AFE acquisition chip are the same, the ADC conversion power consumption, GPIO control power consumption and peripheral power consumption generated by this part of the function are the same. ...

Claims

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Application Information

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IPC IPC(8): G06F13/42
CPCG06F13/4247Y02E60/10
Inventor 汪曹杨邵俊伟
Owner SUNGROW ENERGY STORAGE TECH CO LTD
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