CN112858766A - Mutual-authentication high-safety acquisition circuit and operation method thereof - Google Patents
Mutual-authentication high-safety acquisition circuit and operation method thereof Download PDFInfo
- Publication number
- CN112858766A CN112858766A CN202010739855.1A CN202010739855A CN112858766A CN 112858766 A CN112858766 A CN 112858766A CN 202010739855 A CN202010739855 A CN 202010739855A CN 112858766 A CN112858766 A CN 112858766A
- Authority
- CN
- China
- Prior art keywords
- acquisition
- circuit
- benchmark
- acquisition chip
- mcu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The patent discloses a mutual-authentication high-safety acquisition circuit and an operation method thereof, wherein the mutual-authentication high-safety acquisition circuit comprises a first reference, a second reference, an acquisition chip for acquiring voltage signals and an MCU for transmitting control signals; the acquisition chip comprises a Verf, an AD1 and AD 2-AD n, the Verf is connected with the first benchmark, the AD1 is connected with the second benchmark, and the AD 2-AD n are connected with target equipment; the acquisition chip is connected with the MCU. The safe operation of the acquisition circuit is realized through the technology.
Description
Technical Field
The patent relates to the technical field of acquisition circuits, in particular to a mutual-authentication high-safety acquisition circuit and an operation method thereof.
Background
In recent years, with the development of new energy automobiles, the power lithium battery industry is also in the process of flying development, but the fire event of the lithium battery is a sword which always hangs on the lithium battery industry, such as sticking in the throat. The reasons for this are two, namely, the quality of the lithium battery pack itself and the failure of the lithium Battery Management System (BMS). And the faults of the lithium Battery Management System (BMS) are divided into acquisition faults and system crash operation abnormity. The collection fault mainly represents that the internal electric quantity of the lithium battery cannot be accurately identified by a collection circuit aiming at the lithium battery in a lithium Battery Management System (BMS), so that the charging connection cannot be disconnected in time, and the lithium battery is overloaded during charging to cause fire accidents.
Therefore, a high-safety acquisition circuit is needed to ensure the safe operation of the acquisition circuit such as a lithium battery management system.
Content of patent
The purpose of this patent is to design mutual high security acquisition circuit and operation method thereof, makes it realize the safe operation of acquisition circuit.
In order to achieve the purpose, the patent provides the following technical scheme:
a mutual-authentication high-security acquisition circuit comprises a first reference, a second reference, an acquisition chip for acquiring voltage signals and an MCU (single chip microcomputer) for sending control signals; the acquisition chip comprises a Verf (reference pin), an AD1 (first acquisition pin), an AD2 (second acquisition pin) to an ADn (nth acquisition pin), wherein n is a natural number greater than 2, the Verf is connected with the first benchmark, the AD1 is connected with the second benchmark, and the AD2 to the ADn are connected with target equipment; the acquisition chip is connected with the MCU.
This patent still provides following technical scheme:
an operation method of a mutual authentication high-safety acquisition circuit comprises the following steps:
step 1: connecting the Verf of the acquisition chip to a first benchmark, connecting the AD1 to the second benchmark, and connecting the AD2 to ADn to the target equipment;
step 2: the AD1 of the acquisition chip acquires a reference voltage of the second reference;
and step 3: comparing and analyzing the measurement result of the reference voltage of the second reference voltage in the step 2 with the rated reference voltage of the second reference through the MCU, and judging whether the measurement result is within the error allowable range; the allowable error range may be set to ± 2V or ± 10V or more by manual operation according to actual system conditions, so the present application is not limited. If the error is beyond the allowable range, the circuit is proved to be abnormal, and step 5 is executed; if the error is within the allowable range, the circuit is proved to be normal, and step 4 is executed;
and 4, step 4: the AD 2-ADn of the acquisition chip acquires the analog signal of the target equipment, and the circuit operates normally;
and 5: and the MCU sends an alarm signal.
Compared with the prior art, the beneficial effect of this patent:
detecting a reference voltage of a second reference and comparing the reference voltage with a rated reference voltage of the reference through the MCU to see whether the reference voltage is within an error allowable range; if the error tolerance range is exceeded, the circuit is proved to be abnormal, the MCU sends out an alarm signal to remind a user of paying attention, or the power supply of the target equipment is cut off by operating a cutter of the target equipment. If the error is within the allowable range, the circuit is proved to be normal, the AD 2-ADn collect the analog signals of the target equipment, and the circuit system operates the analog signals normally.
Drawings
In order to more clearly illustrate the embodiments of the present patent or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present patent, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of the circuit of this patent;
Detailed Description
The technical solutions in this patent will be described clearly and completely with reference to the accompanying drawings in this patent, and obviously, only some embodiments, not all embodiments, of this patent are described. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
Example (b):
a mutual-authentication high-security acquisition circuit comprises a first reference, a second reference, an acquisition chip for acquiring voltage signals and an MCU (single chip microcomputer) for sending control signals; the acquisition chip comprises a Verf (reference pin), an AD1 (first acquisition pin), an AD2 (second acquisition pin) to an ADn (nth acquisition pin), wherein n is a natural number greater than 2, the Verf is connected with the first benchmark, the AD1 is connected with the second benchmark, and the AD2 to the ADn are connected with target equipment; the acquisition chip is connected with the MCU.
The working principle of the embodiment is as follows:
step 1: connecting the Verf of the acquisition chip to a first benchmark, connecting the AD1 to the second benchmark, and connecting the AD2 to ADn to the target equipment;
step 2: the AD1 of the acquisition chip acquires a reference voltage of the second reference;
and step 3: comparing and analyzing the measurement result of the reference voltage of the second reference voltage in the step 2 with the rated reference voltage of the second reference through the MCU, and judging whether the measurement result is within the error allowable range; the allowable error range may be set to ± 2V or ± 10V or more by manual operation according to actual system conditions, so the present application is not limited. If the error is beyond the allowable range, the circuit is proved to be abnormal, and step 5 is executed; if the error is within the allowable range, the circuit is proved to be normal, and step 4 is executed;
and 4, step 4: the AD 2-ADn of the acquisition chip acquires the analog signal of the target equipment, and the circuit operates normally;
and 5: and the MCU sends an alarm signal.
Claims (2)
1. The utility model provides a mutual high security acquisition circuit which characterized in that: the device comprises a first reference, a second reference, an acquisition chip for acquiring voltage signals and an MCU for sending control signals; the acquisition chip comprises a Verf, an AD1 and AD 2-AD n, the Verf is connected with the first benchmark, the AD1 is connected with the second benchmark, and the AD 2-AD n are connected with target equipment; the acquisition chip is connected with the MCU.
2. The method of claim 1, comprising the steps of:
step 1: connecting the Verf of the acquisition chip to a first benchmark, connecting the AD1 to the second benchmark, and connecting the AD 2-AD n to the target equipment;
step 2: the AD1 of the acquisition chip acquires a reference voltage of the second reference;
and step 3: comparing and analyzing the measurement result of the reference voltage of the second reference voltage in the step 2 with the rated reference voltage of the second reference through the MCU, and judging whether the measurement result is within the error allowable range; if the error is beyond the allowable range, the circuit is proved to be abnormal, and step 5 is executed; if the error is within the allowable range, the circuit is proved to be normal, and step 4 is executed;
and 4, step 4: the AD2 to AD n of the acquisition chip acquire analog signals of the target equipment, and the circuit operates normally;
and 5: and the MCU sends an alarm signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010739855.1A CN112858766A (en) | 2020-07-28 | 2020-07-28 | Mutual-authentication high-safety acquisition circuit and operation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010739855.1A CN112858766A (en) | 2020-07-28 | 2020-07-28 | Mutual-authentication high-safety acquisition circuit and operation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112858766A true CN112858766A (en) | 2021-05-28 |
Family
ID=75996183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010739855.1A Pending CN112858766A (en) | 2020-07-28 | 2020-07-28 | Mutual-authentication high-safety acquisition circuit and operation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112858766A (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303152A (en) * | 1992-04-29 | 1994-04-12 | Bfgoodrich Flight Systems, Inc. | Lightning strike detection system capable of quickly determining an invalid correlation of strike signaling |
CN103712642A (en) * | 2013-12-20 | 2014-04-09 | 大唐微电子技术有限公司 | Method and apparatus for realizing self-detection of safety detector |
CN203645647U (en) * | 2013-11-25 | 2014-06-11 | 上海航空电器有限公司 | Discrete magnitude collection circuit with self-test function |
CN105277824A (en) * | 2015-10-10 | 2016-01-27 | 陕西千山航空电子有限责任公司 | Online automatic testing circuit and method of multichannel collection interface |
CN205262303U (en) * | 2015-12-15 | 2016-05-25 | 平顶山宇恒高科电气自动化有限公司 | Self -correcting detects exploder tester of precision |
CN206818857U (en) * | 2017-04-18 | 2017-12-29 | 北京萤芯科技有限公司 | A kind of voltage sensor detection means in safety chip |
CN109239637A (en) * | 2018-11-23 | 2019-01-18 | 绵阳市维博电子有限责任公司 | A kind of self-checking system and method for track signal monitoring sensor acquisition channel |
CN109866784A (en) * | 2017-12-01 | 2019-06-11 | 比亚迪股份有限公司 | Channel self-checking unit and method, storage medium, train and its pull-in control system |
CN110501597A (en) * | 2019-09-03 | 2019-11-26 | 广州小鹏汽车科技有限公司 | Electric car and the detection circuit for BMS, method and system |
CN210572698U (en) * | 2019-09-03 | 2020-05-19 | 广西电网有限责任公司玉林供电局 | Self-checking device based on battery data acquisition |
CN213601064U (en) * | 2020-07-28 | 2021-07-02 | 深圳市锂鼎科技有限公司 | Mutual-authentication high-safety acquisition circuit |
-
2020
- 2020-07-28 CN CN202010739855.1A patent/CN112858766A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303152A (en) * | 1992-04-29 | 1994-04-12 | Bfgoodrich Flight Systems, Inc. | Lightning strike detection system capable of quickly determining an invalid correlation of strike signaling |
CN203645647U (en) * | 2013-11-25 | 2014-06-11 | 上海航空电器有限公司 | Discrete magnitude collection circuit with self-test function |
CN103712642A (en) * | 2013-12-20 | 2014-04-09 | 大唐微电子技术有限公司 | Method and apparatus for realizing self-detection of safety detector |
CN105277824A (en) * | 2015-10-10 | 2016-01-27 | 陕西千山航空电子有限责任公司 | Online automatic testing circuit and method of multichannel collection interface |
CN205262303U (en) * | 2015-12-15 | 2016-05-25 | 平顶山宇恒高科电气自动化有限公司 | Self -correcting detects exploder tester of precision |
CN206818857U (en) * | 2017-04-18 | 2017-12-29 | 北京萤芯科技有限公司 | A kind of voltage sensor detection means in safety chip |
CN109866784A (en) * | 2017-12-01 | 2019-06-11 | 比亚迪股份有限公司 | Channel self-checking unit and method, storage medium, train and its pull-in control system |
CN109239637A (en) * | 2018-11-23 | 2019-01-18 | 绵阳市维博电子有限责任公司 | A kind of self-checking system and method for track signal monitoring sensor acquisition channel |
CN110501597A (en) * | 2019-09-03 | 2019-11-26 | 广州小鹏汽车科技有限公司 | Electric car and the detection circuit for BMS, method and system |
CN210572698U (en) * | 2019-09-03 | 2020-05-19 | 广西电网有限责任公司玉林供电局 | Self-checking device based on battery data acquisition |
CN213601064U (en) * | 2020-07-28 | 2021-07-02 | 深圳市锂鼎科技有限公司 | Mutual-authentication high-safety acquisition circuit |
Non-Patent Citations (1)
Title |
---|
魏婷;: "一种新型离散量接口电路的设计", 计算机技术与发展, no. 03, pages 167 - 170 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103475059B (en) | Multiple-channel output cooperation control electric automobile integrated charger supervisory control system and method | |
CN103776622B (en) | A kind of Mechanical Failure of HV Circuit Breaker rapid diagnosis system | |
EP3708415A2 (en) | Battery management system | |
CN108919044B (en) | Active identification method for unit distribution power grid faults based on mutual verification mechanism | |
CN106571688A (en) | Method for monitoring operation mode of direct-current system and operation states of disconnecting switches | |
CN105470935B (en) | A kind of intelligent substation relay protection device defect security isolation aid decision-making method | |
CN111722155A (en) | Cable joint fault monitoring system and monitoring method | |
CN205686200U (en) | A kind of electric automobile lithium battery working protection device | |
CN106655436A (en) | Charging apparatus and charging control method for backup power supply of wind power variable pitch system | |
CN110333493A (en) | A kind of weather radar transmitter failure detection system and method | |
CN213601064U (en) | Mutual-authentication high-safety acquisition circuit | |
CN115037046A (en) | Power secondary equipment running state analysis and detection system | |
CN102636745A (en) | Real-time online monitoring device for electrical life of circuit breaker and monitoring method | |
CN109245300B (en) | Automatic checking method for 500kV intelligent substation pressure plate | |
CN112018887B (en) | Distribution network feeder automatic operation process supervision and analysis method | |
CN109980782A (en) | A kind of the wireless monitor detector and system of electric line safe operation | |
CN112858766A (en) | Mutual-authentication high-safety acquisition circuit and operation method thereof | |
CN111948575A (en) | Current transformer secondary side neutral line disconnection detection method and device | |
CN111509310A (en) | Method and device for online testing performance of storage battery of direct current system of transformer substation | |
CN111509839A (en) | Trip event model analysis method based on alarm signal | |
CN110426625A (en) | A kind of computer operation case for substation | |
CN112445196A (en) | Mine fan self-healing decision support system and method based on scheduling emergency plan | |
CN115313664A (en) | Transformer substation direct current insulation monitoring and checking system based on data analysis | |
CN103368149B (en) | Low-voltage distribution system fault monitoring method | |
CN112255554A (en) | Direct current system battery health status and internal fault monitoring device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |