KR20180061712A - Method for Analysis Quality of Communication of Battery System using HBD, and System thereof - Google Patents

Abstract

The present invention relates to a method and a system for analyzing the quality of communication in a battery system using heart beat data (HBD), wherein communication quality is diagnosed and digitized by analyzing the occurrence of loss of communication (LOC) of the battery system by using the HBD, thereby establishing an optimal communication environment of the battery system. According to the present invention, the quality of communication between the battery system and a peripheral system is able to be diagnosed without additional monitoring equipment. The optimal environment of the battery system is able to be searched and communication quality is able to be reinforced through development of a communication quality index. The price competitiveness is able to be improved by selecting appropriate communication quality reinforcement for each site. Since the communication quality is able to be reinforced below the occurrence level of the LOC, an LOC occurrence rate is able to be lowered. According to the present invention, the method comprises: a step of simultaneously generating heartbeats which constantly increase in a battery management system and peripheral equipment; a step of transmitting the generated heartbeats to the battery management system and the peripheral equipment; and a control step of comparing adjacent heartbeats to determine that an LOC occurs if the heartbeats do not satisfy predetermined conditions.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and system for analyzing communication quality of a battery system using HBD,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and system for analyzing communication quality of a battery system using an HBD. More particularly, the present invention relates to a method and system for analyzing communication quality of a battery system using HBD (Heart Beat Data) The present invention relates to a method and system for analyzing communication quality of a battery system using an HBD, which is characterized in that an optimal communication environment of a battery system is established by diagnosing and quantifying the battery.

In general, the secondary battery includes a nickel cadmium battery, a nickel metal hydride battery, a lithium ion battery, and a lithium ion polymer battery. Such a secondary battery is not limited to small-sized products such as a digital camera, a P-DVD, an MP3P, a mobile phone, a PDA, a portable game device, a power tool and an e-bike, It is also applied to power storage devices that store power and renewable energy, and backup power storage devices.

On the other hand, a large-capacity battery used in an electric vehicle, a hybrid electric vehicle or a power storage device includes a plurality of unit cell assemblies connected in series and / or in parallel. The battery connected to a plurality of unit cells is repeatedly charged and discharged in the form of a battery pack, so that the state of each unit cell and the battery pack must be controlled. Since the storage device of this power storage system uses not only a single battery pack, but also a plurality of battery packs, it is possible to use various battery packs such as voltage, current and temperature information of each battery pack And a battery management system (hereinafter referred to as 'BMS') for monitoring and controlling the battery. The BMS is designed to prevent explosion by regulating the electric power and output balance of the middle and large secondary battery and exchange data with peripheral equipment such as PCS (Power Control System), HVAC (Heating, Ventilating and Air Conditioning) In a stable manner.

In the communication between the battery pack and peripheral equipment using such a BMS, the quality of the communication network in which the battery system belongs is not limited to the time when the LOC (loss of communication) I was able to recognize that it was not good. Further, in order to check the communication quality, it was necessary to use a separate monitoring device to identify problems in the communication network.

U.S. Patent Application Publication No. 2012-0013201 (Jan. 19, 2012) discloses a battery module including at least one battery configured to supply a voltage to a high voltage circuit; Error bus (BUS); And the BMS sends a heartbeat signal to the battery module via the error bus, receives the heartbeat signal from the battery module via the error bus, and prevents the reception of the heartbeat signal configured to block the voltage supply to the high voltage circuit responding to the battery module A BMS communication error and control system including a BMS is disclosed.

Japanese Patent Laid-Open Publication No. 2013-258687 (Dec. 26, 2013) discloses a data communication system comprising a first device for initiating data transmission to a second device, a first sole data conductor for communicating the data from the first device to the second device, And a plurality of communication devices including a second sole data conductor communicating the data from the first device to the second device so that the first sole data conductor and the second sole data conductor form a break detection loop When the break detector is electrically coupled to a second device and the first device includes a data transmitter connected to the first individual data conductor and a break detector is coupled to both the individual data conductors and a break in one of the data conductors is detected And a cut-off signal is asserted.

Korean Patent Registration No. 10-10753520 (October 19, 2011) discloses a master battery management system for managing a battery; And a block master battery management system coupled to the master battery management system and receiving and storing data from at least one slave battery management system, wherein the master battery management system not only periodically from the block master battery management system And receives data non-periodically. ≪ Desc / Clms Page number 2 >

Japanese Patent Application Publication No. 4687743 (Feb. 25, 2011) discloses a fuse for shutting off the charging / discharging current of the secondary battery when an abnormality is detected for one or a plurality of secondary batteries and the secondary battery, And a control unit for performing a fusing process for fusing the fuse in accordance with the detection result. The control unit starts the fusing process when the abnormality is detected, and after the fusing process is started, The fusing state of the fuse is determined by measuring a first potential that is a potential and a second potential that is a potential of the secondary battery, and after the elapse of the predetermined period, if the measurement result, the first potential and the second potential are the same The fuse is judged not to be fused by the fusing process and the fusing process is stopped.

However, it analyzes and controls communication quality with battery system and peripheral system without separate monitoring equipment, develops communication quality index to search for optimum communication environment of battery system, manages communication quality, and selects appropriate communication quality reinforcement material A battery management system and a method of analyzing communication quality with peripheral equipment and a system technology that can improve price competitiveness according to the present invention have not been proposed.

U.S. Patent Application Publication No. 2012-0013201 (Jan. 19, 2012) Japanese Patent Application Laid-Open No. 2013-258687 (December 26, 2013) Korean Patent Registration No. 10-10753520 (Oct. 19, 2011) Japanese Patent Registration No. 4687743 (Feb. 25, 2011)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a battery system in which data is exchanged through communication with various peripheral devices, This is an important consideration, but the communication quality is affected by the environment of the battery system and the state of the communication equipment, and these factors can cause LOCs between peripheral equipment. Accordingly, a communication quality analysis method of a battery system using an HBD, which is characterized in that an LOC situation occurring in a battery system is analyzed using HBD, and a battery system is configured to establish an optimal communication environment and system by diagnosing and quantifying communication quality, System. ≪ / RTI >

In addition, there is an additional purpose of informing the installer and / or operator of the abnormality in the communication quality of the battery system environment by analyzing the magnitude of the LOC count value generated by the HBD reference and each occurrence frequency.

It is also an object of the present invention to provide a method of collecting and organizing frequency of occurrences of LOC counts (2, 3, 4 ...) for a long time (x hours, x days, etc.) in order to provide information to installers and / or operators.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a communication quality analyzing method for a battery pack including at least one battery and a battery management system and at least one peripheral equipment, Simultaneously generating a constantly increasing heartbeat in the system and in the peripheral equipment; A heartbeat transmitting step of transmitting the generated heartbeat to the battery management system and the peripheral equipment; And the battery management system comprises a control step of comparing adjacent heartbeats according to a generation cycle received from the peripheral equipment to determine that the LOC is out of a predetermined condition, Analysis method.

Also, the battery management system can determine the communication quality by using the difference between the heartbeat value received from the peripheral equipment and the adjacent heartbeat value as an index according to the generation cycle.

In addition, a value of ΔΔHBD may be defined by comparing the heartbeat value received from the peripheral equipment in correspondence with the heartbeat transmitted to the peripheral equipment, and the value may be derived by the following equation.

? HBD = HBD _n ? HBD _{n +1} (n = HBD generation order)

The predetermined condition may be that the battery management system counts the ΔΔHBD when there is no change in the heartbeat value according to the generation period received in the unit time, and determines that the LOC is the LOC.

Also, the generation period of the heartbeat may be 1/1000 second to 1 minute.

In addition, the unit time for determining the communication quality of the received heartbeat may be one minute to one week.

In addition, the battery management system and the peripheral equipment can transmit / receive the heartbeat with information of a predetermined bit in a predetermined generation cycle.

The method may further include an alarm step of generating a known signal to the installer and / or the user depending on the LOC of the control step.

Also, the control step of determining the LOC may be performed by peripheral equipment.

In addition, it may be an electronic device to which the method of analyzing the communication quality between the battery pack and peripheral equipment according to any one of the above methods is applied.

Further, it may be an electric vehicle to which the method of analyzing the communication quality between the battery pack and peripheral equipment according to any one of the above methods is applied.

Also, a hybrid vehicle to which the method of analyzing the communication quality between the battery pack and the peripheral equipment according to any one of the above methods is applied may be used.

In addition, it may be a power storage device to which a communication quality analysis method of a battery pack and peripheral equipment according to any one of the above methods is applied.

According to another aspect of the present invention, there is provided a communication system including a first unit for transmitting data to at least one peripheral equipment; A second unit for receiving data from the peripheral equipment; And a control unit for comparing the value of the data according to the unit time according to the generation period received by the peripheral equipment and determining that the LOC is out of a predetermined condition. Management system.

Also, the battery management system and the peripheral equipment may form a bi-directional LOC loop to determine the LOC using the data.

Also, it may be a battery management system for analyzing communication quality with a peripheral device, which compares data values received from the peripheral equipment to define DELTA DELTA DATA and derives a value according to the following equation.

ΔDATA = DATA _n ? DATA _{n +1} (n = DATA generation order)

According to the communication quality analysis method and system of the battery system using the HBD according to the present invention, there is an effect that the communication quality between the battery system and the peripheral system can be diagnosed without any additional monitoring equipment.

Further, the present invention has an effect of searching the optimal environment of the battery system and enhancing the communication quality through the development of the communication quality index.

In addition, the present invention has an effect of enhancing price competitiveness according to the selection of an appropriate communication quality reinforcing material for each site.

Further, the present invention has the effect of lowering the communication error rate because the communication quality can be enhanced below the level of occurrence of the communication error (LOC).

FIG. 1 is a block diagram illustrating a method and system for analyzing communication quality of a battery system using an HBD according to an embodiment of the present invention. Referring to FIG.
2 is a diagram illustrating a BMS configuration in a communication quality analysis method and system of a battery system using an HBD according to an embodiment of the present invention.
3 is a flowchart illustrating a method of analyzing a communication quality of a battery system using an HBD according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating a communication quality analysis method and system of a battery system using an HBD according to an exemplary embodiment of the present invention.
FIG. 5 is data for a case where LOC occurs for at least one second in a method and system for analyzing communication quality of a battery system using an HBD according to an embodiment of the present invention.
FIG. 6 is data for a case where LOC occurs for at least 2 seconds in the method and system for analyzing communication quality of a battery system using an HBD according to an embodiment of the present invention.
7 is AHBD analysis data in a communication quality analysis method and system of a battery system using an HBD according to an embodiment of the present invention.
FIG. 8 is a diagram illustrating a method and system for analyzing communication quality of a battery system using an HBD according to an exemplary embodiment of the present invention. Referring to FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

The present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram illustrating a method and system for analyzing communication quality of a battery system using an HBD according to an embodiment of the present invention. Referring to FIG.

A method for analyzing communication quality of a battery pack and at least one peripheral device, the battery pack including a battery module including at least one battery and a battery management system, the method comprising: simultaneously generating a constantly increasing heartbeat in the battery management system and the peripheral equipment ; A heartbeat transmitting step of transmitting the generated heartbeat to the battery management system and the peripheral equipment; And the battery management system comprises a control step of comparing adjacent heartbeats according to a generation cycle received from the peripheral equipment to determine that the LOC is out of a predetermined condition, Analysis method.

1, the battery system corresponds to a battery module and a battery management system (BMS). The battery management system is responsible for managing (measuring, diagnosing, protecting, etc.) the battery to use the battery stably and efficiently. The battery management system is located at the top of the battery system based on the communication layer, which means that it communicates with peripheral equipment (PCS, HVAC, etc.). Generally, the battery management system is also responsible for the information display function. Or? Based on a PC program.

The main object of the method and system for analyzing the communication quality of the battery system using the HBD proposed in the present invention is a battery management system. The battery management system analyzes the communication quality of the communication network to which the user belongs, determines the abnormality, and informs the installer and / or operator of the analysis result. The analysis result is displayed on the monitor, which is a component of the battery management system (PC body, monitor, etc.).

The installer and / or operator can appropriately improve the communication environment of the equipment based on the analysis result of the communication quality provided by the battery management system, thereby preventing a serious problem (charge and / or discharge failure) that may occur due to communication error.

Because of the heartbeat data transmission, the battery management system is connected to each peripheral device in a bidirectional LOC loop (LOC loop) that initiates and terminates the battery management system. Peripheral equipment is numbered in the order in which they are connected to the LOC loop. The battery management system sends a command to the first peripheral device on the LOC loop (i.e. peripheral equipment PCS in FIG. 1). Each peripheral device (e.g., peripheral equipment PCS) retransmits all data received on a byte-by-byte basis to the battery management system so that the general protocol defines. The last peripheral device in each bi-directional LOC loop (e.g., peripheral device HVAC _f , f = last peripheral device) returns the received data to the battery management system. Accordingly, in FIG. 1, the battery management system always transmits data to each peripheral device, and each peripheral device transmits the data again and is received by the battery management system. The peripheral equipment may be PCS, HVAC, and the like.

2 is a diagram illustrating a BMS configuration in a communication quality analysis method and system of a battery system using an HBD according to an embodiment of the present invention.

Figure 2 shows the components of a battery management system. A first unit for initiating data transmission to one or more peripheral equipment, a second unit for initiating data reception from the peripheral equipment, a conductor unit for communicating the data with the peripheral equipment, A control unit for determining that the LOC is an LOC when a value according to time is out of a predetermined condition, and an alarm unit for generating a notice signal to the installer and / or the user depending on whether the control unit is LOC.

Also, the generation period of the heartbeat may be 1/1000 second to 1 minute. Preferably from 1/100 second to 10 seconds, and more preferably from 1/10 second to 5 seconds. If the parameter generation period is too short or long, the accuracy of the heartbeat data transmitted and received becomes low.

In addition, the unit time for determining the communication quality of the received heartbeat may be one minute to one week. Preferably 1 hour to 5 days, and more preferably 12 hours to 3 days. If the unit time is too short or long, the accuracy of the LOC determination between the battery management system and the peripheral equipment becomes low.

The data signal rate (bps), the data modulation rate (baud), the data transmission rate (cps), etc. may additionally be considered by determining the communication quality.

Also, the battery management system can determine the communication quality by using the difference between the heartbeat value received from the peripheral equipment and the adjacent heartbeat value as an index according to the generation cycle interval.

The neighboring heartbeat value is a value obtained by adding a predetermined heartbeat value to a heartbeat value received for a unit time in accordance with the interval of the generation cycle in a time series based on a difference between the heartbeat value received before or after the heartbeat value, Can be generated. The indicator may be ΔHBD.

In addition, the difference between the received heartbeat value and the adjacent heartbeat value may satisfy the following equation.

? HBD = HBD _n ? HBD _{n +1} (n = HBD generation order different from generation cycle interval, for example, 1 second)

3 is a flowchart illustrating a method of analyzing a communication quality of a battery system using an HBD according to an embodiment of the present invention.

The battery management system determines a data length, a generation cycle, and a unit time of a heartbeat and generates a predetermined heartbeat. And transmits the generated heartbeat to peripheral equipment via the first unit. The heartbeats transmitted from the peripheral equipment are received with a predetermined unit time through the second unit. And compares the received heartbeat data value according to the generation period with the adjacent heartbeat data value. When the data length is 1 byte (Byte), it is counted by LOC only when ΔHBD is not 0, 1, -255. And notifies the installer and / or the user of the fact that the communication environment between the battery management system and the peripheral equipment is not good based on the ratio of the LOC count value to the DELTA HBD value including the LOC count value .

When the communication error rate through the LOC count exceeds a predetermined condition, the installer and / or user is notified of a communication failure between the battery management system and peripheral equipment.

As can be seen from the equation (LOC /? HBD)? 0.01 in FIG. 3, if the ratio of the LOC to the total? HBD including the? HBD counted by the LOC is more than 1%, the communication trouble between the battery management system and the peripheral equipment is judged . It is obvious that the above-described ratio can be changed according to the characteristics between the battery management system and the peripheral equipment.

In addition, the battery management system and the peripheral equipment may transmit / receive the heartbeat with a predetermined bit (Bit) information in a predetermined generation cycle. Preferably, the predetermined bit of the heartbeat may be 1 byte. An 8-bit microcomputer or a 16-bit TI chip may be used to process the heartbeat data.

FIG. 4 is a diagram illustrating a communication quality analysis method and system of a battery system using an HBD according to an exemplary embodiment of the present invention.

(Example 1)

The battery management system and its peripheral devices send and receive HBD values that increase by 1 every second, indicating that the communication between the battery management system and peripheral devices is working normally. If the communication is normally performed, the value of HBD increases by 1, so the difference of the HBD at the adjacent time (1 second interval) becomes 1. In the present invention, since the change range of the HBD increases from 0 to 255 by 1 and returns from 255 to 0, it can be considered that the communication is normally performed even when? HBD = -255. Therefore, if ΔHBD = 1, -255, the communication state is normal.

FIG. 5 is data for a case where LOC occurs for at least one second in a method and system for analyzing communication quality of a battery system using an HBD according to an embodiment of the present invention.

(Example 2)

In the data of FIG. 5, it can be confirmed that the HBD has the same value of 64 even though the time is one second. Peripheral equipment (PCS, HVAC, etc.) sent an HBD value of 1 increased by 1 in time, but the communication between the battery management system and the peripheral equipment was not properly performed and the battery management system did not receive the updated HBD value of the peripheral equipment. Since the value is not changed at this time, the difference from the HBD of the adjacent time becomes zero. After 1 second, the communication is normally established, and the HBD value of 66 transmitted by the peripheral device is received, and the HBD value of the immediately preceding adjacent time is 2 difference. That is, when the value of? HBD is 2, it can be judged that communication of at least one second or more has not been performed properly.

FIG. 6 is data for a case where LOC occurs for at least 2 seconds in the method and system for analyzing communication quality of a battery system using an HBD according to an embodiment of the present invention.

(Example 3)

The data of FIG. 6 was not properly communicated and a ΔHBD value of 3 occurred. In other words, it can be considered that communication is not properly performed for at least 2 seconds. By analyzing the ΔHBD value, the time and frequency of communication can be grasped.

In addition, the predetermined condition may determine the LOC by counting the ΔHBD when the battery management system does not change the heartbeat value according to the generation period received in the unit time.

The method may further include an alarm step of generating a known signal to the installer and / or the user depending on the LOC of the control step. The known signal may be generated as one or more of image, sound, and light signals. Preferably through a monitor which is a PC output device which is a component of the battery management system.

7 is AHBD analysis data in a communication quality analysis method and system of a battery system using an HBD according to an embodiment of the present invention.

(Example 4)

The data in FIG. 7 shows the number of LOC occurrences of the values of ΔHBD that are logarithmically unitized in a unit time of 1, which is a normal situation when ΔHBD = 1 and -255, and when ΔHBD = 0, LOC occurs. Since the LOC situation is counted in all cases other than -255, it is classified as a normal case. ΔHBD = 0. 1. Values other than -255 can be used to determine the time at which the LOC has been sustained as the LOC event has occurred. The frequency of occurrence of LOC can be confirmed by analyzing the occurrence frequency of values except ΔHBD = 0, 1, -255.

FIG. 8 is a diagram illustrating a method and system for analyzing communication quality of a battery system using an HBD according to an exemplary embodiment of the present invention. Referring to FIG.

(Example 5)

Compared with the normal case ratio of ΔHBD value, E equipment has a lower normal case ratio than other equipment. Based on the above data, the communication environment between the battery management system and the E device is not good, and it notifies the installer and / or the user through the alarm unit. The installer and / or operator determined that the communication cable between the battery management system and the E device was out of date, and performed a replacement of the E equipment LAN to improve the communication environment. E is the number of times ΔHBD values are logged in the next unit time after replacing the LAN cable of the E equipment. The ratio of the ΔHBD value between the battery tube system and E equipment after the LAN equipment replacement of E equipment is similar to that of other equipments Respectively. In this way, by analyzing the ΔHBD value, Based on the analysis results, the installer and / or operator can take appropriate action before the problem arises due to communication.

In addition, it may be an electronic device to which the method of analyzing the communication quality between the battery pack and peripheral equipment according to any one of the above methods is applied.

Further, it may be an electric vehicle to which the method of analyzing the communication quality between the battery pack and peripheral equipment according to any one of the above methods is applied.

Also, a hybrid vehicle to which the method of analyzing the communication quality between the battery pack and the peripheral equipment according to any one of the above methods is applied may be used.

In addition, it may be a power storage device to which a communication quality analysis method of a battery pack and peripheral equipment according to any one of the above methods is applied.

According to another aspect of the present invention, there is provided a communication apparatus including: a first unit that starts data transmission to at least one peripheral device; A second unit for starting receiving data from the peripheral equipment; A conductor unit for communicating the data with the peripheral equipment; And a control unit for determining that the data received by the conductor unit is an LOC when a value according to unit time is out of a predetermined condition.

The data generated in the first unit may be a heartbeat, and a data length and a generation period may be set.

The data received by the second unit may be a heartbeat, and the unit time of the received heartbeat data may be set.

Also, the battery management system and the peripheral equipment may form a bi-directional LOC loop to determine the LOC using the data.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. It is to be understood that such modified embodiments are also within the scope of protection of the present invention as defined by the appended claims.

100: Battery pack
110: BMS
111: First unit
112: second unit
113: control unit
114: Alarm unit
120: Battery module

Claims (16)

A method for analyzing a communication quality of a battery pack and at least one peripheral equipment including a battery module including at least one battery and a battery management system,
Simultaneously generating a constantly increasing heartbeat in the battery management system and the peripheral equipment;
A heartbeat transmitting step of transmitting the generated heartbeat to the battery management system and the peripheral equipment; And
Wherein the battery management system compares adjacent heartbeats according to a generation cycle received from the peripheral equipment and determines that the LOC is out of a predetermined condition. Way.
The method according to claim 1,
Wherein the battery management system determines a communication quality by using a difference between a heartbeat value received from the peripheral equipment and the adjacent heartbeat value as an index according to the generation cycle.
A method for analyzing communication quality between a battery pack and peripheral equipment.
The method according to claim 1,
Comparing the heartbeat values received from the peripheral equipment to define? HBD, and deriving a value according to the following equation.
? HBD = HBD _n ? HBD _{n +1} (n = HBD generation order)
The method of claim 3,
Wherein the predetermined condition is that the battery management system determines the LOC by counting the? HBD when there is no change in the heartbeat value according to the generation period received in the unit time;
A method for analyzing communication quality between a battery pack and peripheral equipment.
The method according to claim 1,
Wherein the heart beat generation period is 1/1000 second to 1 minute;
A method for analyzing communication quality between a battery pack and peripheral equipment.
The method according to claim 1,
Wherein the unit time for determining the communication quality of the received heartbeat is one minute to one week.
A method for analyzing communication quality between a battery pack and peripheral equipment.
5. The method of claim 4,
Wherein the battery management system and the peripheral device transmit / receive the heartbeat with a predetermined bit in a predetermined generation cycle;
A method for analyzing communication quality between a battery pack and peripheral equipment.
The method according to claim 1,
Further comprising an alarm step of generating a notice signal to the installer and / or the user depending on whether the LOC of the control step is LOC.
The method according to claim 1,
Wherein the control step of determining that the LOC is performed by peripheral equipment is performed by peripheral equipment.
An electronic apparatus to which a method for analyzing the communication quality of a battery pack and peripheral equipment according to any one of claims 1 to 9 is applied.
An electric vehicle to which a communication quality analysis method of a battery pack and peripheral equipment according to any one of claims 1 to 9 is applied.
A hybrid vehicle to which a communication quality analysis method of a battery pack and peripheral equipment according to any one of claims 1 to 9 is applied.
A power storage device to which a communication quality analysis method of a battery pack and peripheral equipment according to any one of claims 1 to 9 is applied.
A first unit for transmitting data to one or more peripheral devices;
A second unit for receiving data from the peripheral equipment;
And a control unit for comparing the value of the data according to the unit time according to the generation period received by the peripheral equipment and determining that the LOC is out of a predetermined condition. Management system.
15. The method of claim 14,
Wherein the battery management system and the peripheral equipment form a bidirectional LOC loop to determine an LOC using the data.
15. The method of claim 14,
Comparing the data values received from the peripheral equipment to define DELTA DELTA DAATA, and deriving a value according to the following equation.
ΔDATA = DATA _n ? DATA _{n +1} (n = DATA generation order)

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