CN113903106A - EDR system of automobile event data recording system and self-checking method thereof - Google Patents
EDR system of automobile event data recording system and self-checking method thereof Download PDFInfo
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- CN113903106A CN113903106A CN202111185392.XA CN202111185392A CN113903106A CN 113903106 A CN113903106 A CN 113903106A CN 202111185392 A CN202111185392 A CN 202111185392A CN 113903106 A CN113903106 A CN 113903106A
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- 238000000034 method Methods 0.000 title description 6
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 19
- 230000001133 acceleration Effects 0.000 claims abstract description 8
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 238000010998 test method Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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Abstract
The utility model provides an automobile event data recording system EDR system, including the MCU module, G-sensor module, the FLASH module, the sampling module, CAN communication module, voltage stabilizing module and buzzer siren, G-sensor module passes through circuit and MCU module signal connection, G-sensor module detectable vehicle is at X, Y, Z triaxial epaxial acceleration, CAN communication module and MCU module signal connection, CAN communication module CAN monitor the engine speed of vehicle, speed of a motor vehicle and accelerating signal, the sampling module CAN monitor the brake pedal signal of vehicle, the MCU module CAN be when the automobile takes place the automobile event with G-sensor module, the data of CAN communication module and sampling module record are stored in the FLASH module, voltage stabilizing module CAN carry out voltage stabilizing processing to whole EDR system's supply circuit, buzzer siren is connected on the MCU module. The invention can alarm by the buzzer when the self-checking of the EDR system fails, does not need to carry out secondary development on the combination instrument, reduces the change cost and period, and improves the adaptability and the universality of the EDR system.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an EDR system of an automobile event data recording system and a self-checking method thereof.
Background
In an automotive EDR system, whether the operating state of the EDR system is normal is generally indicated by a combination meter, and if the EDR self-test finds a fault, the EDR sends a signal to a meter to request the meter to light up to indicate the fault; in the working mode, the combination meter needs to be developed for the second time, the dial indication of the meter needs to be changed, and an alarm circuit needs to be added, so that the change cost and the change period are increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an EDR system of an automobile event data recording system and a self-checking method thereof, and solves the problems that in the prior art, in the automobile EDR system, whether the working state of the EDR system is normal or not is usually indicated by a combination instrument, the combination instrument needs to be developed secondarily, the dial indication of the instrument is changed, an alarm circuit is added, and the change cost and the change period are increased.
In order to achieve the purpose, the invention adopts the technical scheme that:
an EDR system of an automobile event data recording system comprises an MCU module, a G-sensor module, a FLASH module, a sampling module, a CAN communication module, a voltage stabilizing module and a buzzer alarm, and is characterized in that the G-sensor module is in signal connection with the MCU module through a circuit, the G-sensor module CAN detect the acceleration of a vehicle on three shafts X, Y, Z, the MCU module CAN scan the data of the G-sensor module, the CAN communication module is in signal connection with the MCU module, the CAN communication module CAN monitor the engine speed, the vehicle speed and an acceleration signal of the vehicle, the MCU module CAN scan the data of the CAN communication module, the sampling module CAN monitor the brake pedal signal of the vehicle, the MCU module CAN scan the data of the sampling module, and the MCU module CAN monitor the G-sensor module, the CAN communication module and the acceleration signal when an automobile event occurs, the G-sensor module, Data of CAN communication module and sampling module control store in the FLASH module, voltage stabilizing module CAN carry out the steady voltage to the supply circuit of whole EDR system and handle, the buzzer siren is connected on the MCU module, when voltage stabilizing module, MCU module, G-sensor module, FLASH module, sampling module and CAN communication module self-checking fail, the buzzer siren reports to the police.
Furthermore, still be connected with an EEPROM on the MCU module, the EEPROM also CAN be when the car takes place the car incident with the data of G-sensor module, CAN communication module and sampling module control and store, voltage stabilization module includes voltage sensor, voltage sensor CAN detect the supply voltage of whole EDR system.
The self-checking method of the EDR system of the automobile event data recording system comprises the following steps:
s1: when the automobile is started, self-checking is started;
s2, detecting the power supply voltage of the whole EDR system by a voltage sensor on the voltage stabilizing module, and if the power supply voltage is between 8V and 16V, performing S3; if the power supply voltage is more than 16V or less than 8V, a voltage abnormal signal is sent to the MCU module, and the buzzer alarm gives an alarm;
s3, carrying out initialization self-check on the FLASH module, and if the initialization self-check of the FLASH module is successful, carrying out S4; if the initialization self-check of the FLASH module fails, sending an FLASH module abnormal signal to the MCU module, and alarming by the buzzer alarm;
s4: performing initialization self-checking on the EEPROM, and performing S5 if the initialization self-checking of the EEPROM is successful; if the EEPROM initialization self-check fails, an EEPROM abnormal signal is sent to the MCU module, and the buzzer alarm gives an alarm;
s5: the G-sensor module carries out initialization self-checking, and S5 is carried out if the G-sensor module is successful in initialization self-checking; if the G-sensor module fails to initialize the self-checking, an abnormal signal of the G-sensor module is sent to the MCU module, and the buzzer alarm gives an alarm;
s6: and finishing self-checking.
According to the invention, the EDR system can be externally connected with a buzzer alarm, when the self-checking EDR system fails, the alarm can be given by the buzzer alarm, secondary development of a combination instrument is not needed, the change cost and period are reduced, and the adaptability and the universality of the EDR system are improved.
Drawings
FIG. 1 is a schematic diagram of the EDR system of the present invention;
FIG. 2 is a flow chart of a self-test of the EDR system of the present invention;
in the figure: 1. the device comprises an MCU module, a 2G-sensor module, a 3 FLASH module, a 4 sampling module, a 5 CAN communication module, a 6 voltage stabilizing module, a 7 buzzer alarm.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An EDR system of an automobile event data recording system as shown in FIG. 1 comprises an MCU module 1, a G-sensor module 2, a FLASH module 3, a sampling module 4, a CAN communication module 5, a voltage stabilizing module 6 and a buzzer alarm 7, and is characterized in that the G-sensor module 2 is in signal connection with the MCU module 1 through a circuit, the G-sensor module 2 CAN detect the acceleration of a vehicle on three axes X, Y, Z, the MCU module 1 CAN scan the data of the G-sensor module 2, the CAN communication module 5 is in signal connection with the MCU module 1, the CAN communication module 5 CAN monitor the engine speed, the vehicle speed and the acceleration signal of the vehicle, the MCU module 1 CAN scan the data of the CAN communication module 5, the sampling module 4 CAN monitor the brake pedal signal of the vehicle, the MCU module 1 CAN scan the data of the sampling module 4, the monitoring system comprises an MCU module 1, a voltage stabilizing module 6, a buzzer alarm 7, a power supply circuit and a power supply module, wherein the MCU module 1 CAN store data monitored by a G-sensor module 2, a CAN communication module 5 and a sampling module 4 in the FLASH module 3 when an automobile event occurs in an automobile, the voltage stabilizing module 6 CAN perform voltage stabilizing processing on the power supply circuit of the whole EDR system, the buzzer alarm 7 is connected to the MCU module 1, and the buzzer alarm 7 alarms when the self-detection of the voltage stabilizing module 6, the MCU module 1, the G-sensor module 2, the FLASH module 3, the sampling module 4 and the CAN communication module 5 fails; still be connected with an EEPROM on the MCU module 1, the EEPROM also CAN be when the car takes place the car incident with the data of G-sensor module 2, CAN communication module 5 and the monitoring of sampling module 4 and store, voltage stabilization module 6 includes voltage sensor, voltage sensor CAN detect the supply voltage of whole EDR system.
As shown in fig. 2, the self-checking method of the EDR system of the automobile event data recording system includes the following steps:
s1: when the automobile is started, self-checking is started;
s2, detecting the power supply voltage of the whole EDR system by a voltage sensor on the voltage stabilizing module 6, and if the power supply voltage is between 8V and 16V, performing S3; if the power supply voltage is more than 16V or less than 8V, a voltage abnormal signal is sent to the MCU module 1, and the buzzer alarm 7 gives an alarm;
s3, carrying out initialization self-check on the FLASH module 3, and carrying out S4 if the initialization self-check of the FLASH module 3 is successful; if the initialization self-checking of the FLASH module 3 fails, sending an abnormal signal of the FLASH module 3 to the MCU module 1, and alarming by the buzzer alarm 7;
s4: performing initialization self-checking on the EEPROM, and performing S5 if the initialization self-checking of the EEPROM is successful; if the EEPROM initialization self-check fails, an EEPROM abnormal signal is sent to the MCU module 1, and the buzzer alarm 7 gives an alarm;
s5: the G-sensor module 2 carries out initialization self-checking, and if the G-sensor module 2 is successful in initialization self-checking, S5 is carried out; if the G-sensor module 2 fails to initialize and self-check, an abnormal signal of the G-sensor module 2 is sent to the MCU module 1, and the buzzer alarm 7 gives an alarm;
s6: and finishing self-checking.
According to the invention, the EDR system can be externally connected with a buzzer alarm 7, when the self-checking EDR system fails, the alarm can be given through the buzzer alarm 7, secondary development on a combination instrument is not needed, the change cost and period are reduced, and the adaptability and the universality of the EDR system are improved.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (3)
1. An EDR system of an automobile event data recording system comprises an MCU module (1), a G-sensor module (2), a FLASH module (3), a sampling module (4), a CAN communication module (5), a voltage stabilizing module (6) and a buzzer alarm (7), and is characterized in that the G-sensor module (2) is in signal connection with the MCU module (1) through a circuit, the G-sensor module (2) CAN detect the acceleration of a vehicle on three shafts X, Y, Z, the MCU module (1) CAN scan the data of the G-sensor module (2), the CAN communication module (5) is in signal connection with the MCU module (1), the CAN communication module (5) CAN monitor the engine speed, the vehicle speed and the acceleration signal of the vehicle, the MCU module (1) CAN scan the data of the CAN communication module (5), sampling module (4) CAN monitor the brake pedal signal of vehicle, MCU module (1) CAN scan the data of sampling module (4), MCU module (1) CAN be when the car takes place the auto accident with G-sensor module (2), CAN communication module (5) and the data of sampling module (4) control store in FLASH module (3), voltage stabilizing module (6) CAN carry out the steady voltage to the supply circuit of whole EDR system and handle, buzzer siren (7) are connected on MCU module (1), when voltage stabilizing module (6), MCU module (1), G-sensor module (2), FLASH module (3), sampling module (4) and CAN communication module (5) self-checking fail, buzzer siren (7) report to the police.
2. The EDR system of claim 1, wherein an EEPROM is connected to the MCU module (1), the EEPROM CAN store data monitored by the G-sensor module (2), the CAN communication module (5) and the sampling module (4) when an automobile event occurs, the voltage stabilizing module (6) comprises a voltage sensor, and the voltage sensor CAN detect the power supply voltage of the whole EDR system.
3. A self-test method of an EDR system of an automobile event data recording system according to claim 2, characterized by comprising the steps of:
s1: when the automobile is started, self-checking is started;
s2, detecting the power supply voltage of the whole EDR system by a voltage sensor on the voltage stabilizing module (6), and carrying out S3 if the power supply voltage is between 8V and 16V; if the power supply voltage is more than 16V or less than 8V, a voltage abnormal signal is sent to the MCU module (1), and the buzzer alarm (7) gives an alarm;
s3, carrying out initialization self-check on the FLASH module (3), and carrying out S4 if the initialization self-check of the FLASH module (3) is successful; if the initialization self-checking of the FLASH module (3) fails, sending an abnormal signal of the FLASH module (3) to the MCU module (1), and alarming by the buzzer alarm (7);
s4: performing initialization self-checking on the EEPROM, and performing S5 if the initialization self-checking of the EEPROM is successful; if the EEPROM initialization self-check fails, an EEPROM abnormal signal is sent to the MCU module (1), and the buzzer alarm (7) gives an alarm;
s5: the G-sensor module (2) carries out initialization self-checking, and S5 is carried out if the G-sensor module (2) is successful in initialization self-checking; if the G-sensor module (2) fails to initialize and self-check, an abnormal signal of the G-sensor module (2) is sent to the MCU module (1), and the buzzer alarm (7) gives an alarm;
s6: and finishing self-checking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111185392.XA CN113903106A (en) | 2021-10-12 | 2021-10-12 | EDR system of automobile event data recording system and self-checking method thereof |
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| CN202111185392.XA CN113903106A (en) | 2021-10-12 | 2021-10-12 | EDR system of automobile event data recording system and self-checking method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115685964A (en) * | 2022-10-27 | 2023-02-03 | 神龙汽车有限公司 | An EDR implementation architecture and method for fuel-adapted pure electric vehicles |
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| CN112747941A (en) * | 2021-02-22 | 2021-05-04 | 桂林电子科技大学 | Testing device and testing method for EDR system of automobile event data record |
| CN113092898A (en) * | 2021-03-22 | 2021-07-09 | 神龙汽车有限公司 | EDR system integration parameter input testing device and testing method |
| CN113327346A (en) * | 2021-07-03 | 2021-08-31 | 重庆君歌电子科技有限公司 | Full data car incident data record system EDR |
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- 2021-10-12 CN CN202111185392.XA patent/CN113903106A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110213526A1 (en) * | 2010-03-01 | 2011-09-01 | Gm Global Technology Operations, Inc. | Event data recorder system and method |
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| CN111071185A (en) * | 2019-12-11 | 2020-04-28 | 安徽岳森电子科技有限公司 | EDR controller of automobile event data recording system |
| CN212289724U (en) * | 2020-03-11 | 2021-01-05 | 福尔达车联网（深圳）有限公司 | Self-detection vehicle-mounted device |
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| CN112747941A (en) * | 2021-02-22 | 2021-05-04 | 桂林电子科技大学 | Testing device and testing method for EDR system of automobile event data record |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115685964A (en) * | 2022-10-27 | 2023-02-03 | 神龙汽车有限公司 | An EDR implementation architecture and method for fuel-adapted pure electric vehicles |
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Application publication date: 20220107 |