CN105928540B - Vehicle-mounted log arrangement power supply protection method - Google Patents
Vehicle-mounted log arrangement power supply protection method Download PDFInfo
- Publication number
- CN105928540B CN105928540B CN201610487791.4A CN201610487791A CN105928540B CN 105928540 B CN105928540 B CN 105928540B CN 201610487791 A CN201610487791 A CN 201610487791A CN 105928540 B CN105928540 B CN 105928540B
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- Prior art keywords
- vehicle
- power supply
- log arrangement
- master controller
- power down
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses after a kind of vehicle-mounted log arrangement power supply protection method, including vehicle-mounted log arrangement master controller detection system power down, vehicle-mounted log arrangement master controller triggers interrupt routine, and executes power down protection program;Real-time vehicle running mileage is calculated in power down protection program, saves the mileage of calculating;And power loss indicator is arranged in.The method of the present invention remains to provide power supply in short-term for system when system is powered down, enables the system to during this period of time save mileage travelled and key parameter.When next time powers on, by check these key parameters can mileage when system once power down, power down will not lose, guarantee motor vehicle emission detection accuracy.
Description
Technical field
It is specially a kind of for the vehicle-mounted power supply protection method having the records of distance by the log the present invention relates to power supply protection technical field.
Background technique
Present automobile-used discharge detection method mainly has the emission test method based on concentration and the emission test method based on quality.
Based on the test method of pollutant mass discharge, such as Light-Duty Gasoline Vehicle simple transient behavior pollutant emission detection method is (referred to as
VMAS), by the actual operating mode of more accurately simulating vehicle, to directly acquire total discharge quality of Automobile emission, from
And it can more objectively judge the emission status of vehicle.
Alternatively, the discharge quality of vehicle under mileage can be obtained by the discharge quality for obtaining vehicle, thus
Extrapolate discharge gross mass of the vehicle in given travel mileage.The data are particularly significant for the emission status for monitoring vehicle.
In order to be accurately obtained above- mentioned information, accurate VMT Vehicle-Miles of Travel data are needed.
In actually detected, need to input the current driving mileage information of detected vehicle.Current method is inspector
It is artificial to read vehicle mileage table information, it is input in inspection software.There are problems that following two at this time:
(1) it is detected car owner's illegal modifications of vehicle mileage information of vehicle, so that inspector reads the letter of mistake
Breath.
(2) inspector does not input mileage information according to mileometer data.
Both of these problems all make subsequent testing result mistake.
Currently, the accuracy in order to guarantee vehicle mileage data, for measure vehicle mileage car-mounted device type very
It is more, but can not prevent from artificially pulling out or closing measuring device.
In view of this, the present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of vehicle-mounted log arrangement power supply
Guard method calculates mileage travelled in vehicle travel process, in the apparatus system power down, still ensures that vehicle is had the records of distance by the log mileage
Data correctly save, and battery by system knows once power down on next time, guarantees the accuracy of discharge detection.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of vehicle-mounted log arrangement power supply protection method, comprising:
(1) the vehicle-mounted log arrangement master controller detection system of whether power down;
(2) after power down occurs for, vehicle-mounted log arrangement master controller triggers interrupt routine, and executes power down protection program;
(3) calculates real-time vehicle running mileage in power down protection program, saves the mileage of calculating;
(4) power loss indicator is arranged in.
It further, further include being uploaded to the mileage in above-mentioned vehicle-mounted log arrangement power supply protection method
Network server.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, when setting power loss indicator also set up therefore
Barrier mark.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, vehicle-mounted log arrangement master controller passes through confession
Cutting changes switching circuit connection system power supply circuit and storage capacitor, and Vehicular accumulator cell is by circuit to system power supply circuit and storage
It can capacitances to supply power;Divide equally between vehicle-mounted log arrangement master controller and Vehicular accumulator cell, system power supply circuit and storage capacitor
It She You not accumulator voltage monitoring circuit, system power supply voltage detecting circuit and storage capacitor voltage detecting circuit.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, the storage capacitor is farad capacitor.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method: the vehicle-mounted log arrangement master controller inspection
Whether power down includes examining system;
Log arrangement master controller detection system power supply circuit voltage is lower than voltage rating, determines that power down occurs at this time;For
Cutting changes switching to storage capacitor.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, after power down occurs, vehicle-mounted log arrangement master control
Device processed triggers interrupt routine
After power down occurs, vehicle-mounted log arrangement master controller detects that system power supply voltage lower than voltage rating, interrupts system
Power supply circuit of uniting is powered;And
1) detection battery voltage is normal, then system power supply fault mark is arranged, into system protection mode;
2) detects battery voltage lower than voltage rating, and storage capacitor voltage is normal, then enters power down protection program.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, after power down occurs, vehicle-mounted log arrangement master control
Device processed triggers interrupt routine further include:
After power down occurs, vehicle-mounted log arrangement master controller detection storage capacitor voltage is lower than voltage rating, middle-end energy storage
Capacitances to supply power:
1) detection battery voltage is normal, then farad capacitor Reflector is arranged, into system protection mode.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, the vehicle-mounted log arrangement master controller connects
It is connected to calibrating instrument;Detect whether vehicle-mounted log arrangement master controller is in calibration state after into the power down protection program,
If being not on calibration state, real-time vehicle running mileage is calculated, saves the mileage of calculating;It is arranged simultaneously
Power loss indicator and Reflector.
Further, in above-mentioned vehicle-mounted log arrangement power supply protection method, the vehicle-mounted log arrangement can obtain in real time
It takes and calculates VMT Vehicle-Miles of Travel data.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
It is obtained in real time in vehicle travel process and calculates VMT Vehicle-Miles of Travel data, through the invention vehicle-mounted log arrangement
Power supply protection method is remained to provide power supply in short-term for system, be enabled the system at this section in the apparatus system power down
It is interior to save mileage travelled and key parameter.When next time powers on, by check these key parameters can until system once
Through power down, mileage when power down will not lose, and guarantee the accuracy of motor vehicle emission detection.
Detailed description of the invention
Fig. 1 is the power supply protection hardware principle of vehicle-mounted log arrangement in the vehicle-mounted log arrangement power supply protection method of the present invention
Figure;
Fig. 2 is the low interrupt service routine schematic diagram of system voltage in the method for the present invention;
Fig. 3 is the low interrupt service routine schematic diagram of storage capacitor voltage in the method for the present invention;
Fig. 4 is the low interrupt service routine schematic diagram of vehicular electricity storage cell voltage in the method for the present invention;
Fig. 5 is power down protection program schematic diagram in the method for the present invention;
Specific embodiment
In the following with reference to the drawings and specific embodiments, the invention will be further described, to help the contents of the present invention are understood.
Mileage number is frequently resulted in the actually detected middle current driving mileage information for needing to input detected vehicle
According to the problem of mistake, it is proposed that a kind of new vehicle discharges automatic driving range metering method, this method is required in vehicle present invention applicant
It is upper to install a set of vehicle additional and have the records of distance by the log real-time capture and transmitting device, net is sent by the mileage calculated in real time in the apparatus
Storage can be downloaded for detecting in network server, do not needed manual entry mileage information, prevented the mileage of input error.
Although installation vehicle is had the records of distance by the log after real-time capture and transmitting device, more objective and accurate mileage can be obtained,
To have a problem that, be exactly in vehicle use process, can taking human as the device is pulled out from vehicle, then needing
When plug again.Artificially pull out or close vehicle have the records of distance by the log real-time capture and transmitting device when, the supply voltage of system is fast
Speed reduces, until chip can not work normally.Since voltage reduces quickly, so system can not save within the so short time
Some critical datas, thus state of recording that system is powered down.When next time powers on, system does not know once power down, therefore still can
Network server is sent according to correct mode by the mileage measured, and is saved in local, allows for vehicle in this way
Actual travel mileage be greater than vehicle have the records of distance by the log real-time capture and transmitting device measurement mileage travelled, so as to cause discharge detection when
Use incorrect mileage.Moreover, this problem can not be detected by inspector in discharge detecting field.
Therefore the present invention provides a kind of vehicle-mounted log arrangement power supply protection methods, comprising:
1. vehicle-mounted log arrangement master controller detection system whether power down;
2. after power down occurs, vehicle-mounted log arrangement master controller triggers interrupt routine, and executes power down protection program;
3. calculating in power down protection program real-time vehicle running mileage, the mileage of calculating is saved;
4. power loss indicator and Reflector is arranged.
It 5, further include that the mileage is uploaded to network server after the mileage that above-mentioned preservation calculates.
The vehicle-mounted log arrangement of the present invention is that vehicle is had the records of distance by the log real-time capture and transmitting device, which can connect on vehicle
OBD interface or cigar lighter socket on, in vehicle usually driving process, which can obtain calculating mileage in real time
It is stored in device master controller local and is uploaded to network server, mileage is used for vehicle after being handled by information processing centre
Discharge detection, as long as vehicle launch, vehicle has the records of distance by the log real-time capture and transmitting device automatically begins to obtain mileage and save
Data.
Log arrangement real-time capture mileage of the present invention can basis:
(1) position location satellite: it can use the location information that general HA Global Positioning Satellite data obtain vehicle, calculate accordingly
Mileage out.HA Global Positioning Satellite typically has GPS, Beidou.
(2) vehicle-mounted mileage information: certain vehicles have a method for reading vehicle-mounted mileage information, for example, by OBD interface or
Cigar lighter socket connection vehicle has the records of distance by the log real-time capture and transmitting device to receive driving mileage data information from the interface.
(3) sensor that the device is equipped with measurement vehicle movement parameter acquires driving mileage data information, according to these biographies
Mileage can be calculated in sensor information.Such as acceleration transducer.
With reference to shown in Fig. 1-4, vehicle-mounted log arrangement master controller connects system power supply by power switching switching circuit
Circuit and storage capacitor, Vehicular accumulator cell are powered by circuit to system power supply circuit and storage capacitor;Vehicle-mounted log arrangement master
Be respectively equipped between controller and Vehicular accumulator cell, system power supply circuit and storage capacitor accumulator voltage monitoring circuit,
System power supply voltage detecting circuit and storage capacitor voltage detecting circuit.In the embodiment of the present invention storage capacitor it is preferable to use
It is farad capacitor.
Specifically, in the methods of the invention, whether power down includes 1. vehicle-mounted log arrangement master controller detection systems;
Log arrangement master controller detects vehicular electricity storage cell voltage, system power supply voltage and farad capacitor voltage;Power supply
Above three voltage is in normal range (NR) when normal;Car-mounted device master controller by vehicular electricity storage cell voltage after treatment
System power supply power voltage supply, power switching switching to system power supply circuit.
If user by vehicle-mounted log arrangement implement capture and transmitting device pulled up from vehicle, the log arrangement be
System power supply observation circuit between system power supply circuit can monitor that system power supply circuit voltage lower than voltage rating, determines at this time
Power down occurs, power switching switching to farad capacitor is powered from farad capacitor to vehicle-mounted log arrangement master controller, can be mentioned
For the electricity of several hundred milliseconds or so, can guarantee this period to save some key messages, hereafter farad capacitor discharge off, vehicle
Log arrangement is carried not power and can shut down.
2. after power down occurs, vehicle-mounted log arrangement master controller triggering interrupt routine includes:
After power down occurs, vehicle-mounted log arrangement master controller detects that system power supply voltage lower than voltage rating, interrupts system
Power supply circuit of uniting is powered;And
1) detection battery voltage is normal, then main control when system power supply fault mark is powered on for next time is arranged
Device can know the case where once power down, and Reflector is realized by way of flag bit is arranged in the host controller;Failure mark
Enter system protection mode after will: battery provides power supply, allows whole system to work on during power down or using backup electricity
The content of all or part of data storage cell in the apparatus system is protected in source;
2) detects battery voltage lower than voltage rating, and storage capacitor voltage is normal, then enters power down protection program.
If vehicle-mounted log arrangement master controller detects that system power supply voltage lower than voltage rating, interrupts system power supply electricity
Road power supply;Master controller detects storage capacitor voltage and is lower than voltage rating, the power supply of middle-end storage capacitor:
1) it is normal to detect battery voltage by, then is arranged when storage capacitor Reflector is powered on for next time that master controller can
The case where to know once power down;Enter system protection mode after Reflector.
After power down, vehicle-mounted log arrangement master controller detect system power supply voltage, battery voltage and
Farad capacitor voltage is below voltage rating, vehicle-mounted log arrangement Status unknown.
It is as described in Figure 5,3, it is described real-time vehicle running mileage is calculated in power down protection program, save meter
The mileage of calculation is specially;
The vehicle-mounted log arrangement master controller is connected with calibrating instrument, for the calibration of the log arrangement, amendment measurement
Error in the process, improves the accuracy of system, and calibrated measurement will use calibrated parameter;
Preferred vehicle-mounted log arrangement master controller detects whether itself log arrangement is in mark after into power down protection program
Determine state, if being not on calibration state, real-time vehicle running mileage is calculated, saves the mileage of calculating;
Power loss indicator is set simultaneously and the case where master controller can know once power down when Reflector is powered on for next time;And it will meter
The mileage of calculation is uploaded to network server, guarantees that the mileage after power down occurs is not lost, and guarantees vehicle discharge detection
Accuracy, reliability.
If detecting that vehicle-mounted log arrangement is in state of demarcating, power loss indicator is arranged in master controller;If inspection
It measures vehicle-mounted log arrangement and is in and complete calibration state, then remove the power loss indicator after power down in master controller;Demarcating and
It completes under calibration state, vehicle-mounted log arrangement is considered as unexpected power down when connection calibration tool, power down protection EP (end of program), by marking
Determine instrument and the vehicle-mounted log arrangement is written into the mileage that qualified professional sets.If write-in is correct, basis
The information of write-in recalculates total mileage evidence.If the nominal data of write-in is unreasonable, enter failure endless loop.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of vehicle-mounted log arrangement power supply protection method, it is characterised in that: include:
(1) the vehicle-mounted log arrangement master controller detection system of whether power down;
(2) after power down occurs for, vehicle-mounted log arrangement master controller triggers interrupt routine, and executes power down protection program;
(3) calculates real-time vehicle running mileage in power down protection program, saves the mileage of calculating;
(4) power loss indicator is arranged in;
Reflector is also set up when the setting power loss indicator;
Wherein, vehicle-mounted log arrangement master controller connects system power supply circuit and storage capacitor by power switching switching circuit,
Vehicular accumulator cell is powered by circuit to system power supply circuit and storage capacitor;Vehicle-mounted log arrangement master controller and vehicular electricity storage
Accumulator voltage monitoring circuit, system power supply voltage detecting are respectively equipped between pond, system power supply circuit and storage capacitor
Circuit and storage capacitor voltage detecting circuit;
Whether power down includes: the vehicle-mounted log arrangement master controller detection system
Log arrangement master controller detection system power supply circuit voltage is lower than voltage rating, determines that power down occurs at this time;For cutting
Switching is changed to storage capacitor;
After power down occurs, vehicle-mounted log arrangement master controller triggering interrupt routine includes:
After power down occurs, vehicle-mounted log arrangement master controller detects that system power supply voltage lower than voltage rating, interrupts system and supplies
Circuit power supply;And
1) detection battery voltage is normal, then system power supply fault mark is arranged, into system protection mode;
2) detects battery voltage lower than voltage rating, and storage capacitor voltage is normal, then enters power down protection program.
2. vehicle-mounted log arrangement power supply protection method according to claim 1, it is characterised in that: further include by the mileage
Data are uploaded to network server.
3. vehicle-mounted log arrangement power supply protection method according to claim 1, it is characterised in that: the storage capacitor is method
Draw capacitor.
4. vehicle-mounted log arrangement power supply protection method according to claim 1, it is characterised in that: vehicle-mounted after power down occurs
Log arrangement master controller triggers interrupt routine further include:
After power down occurs, vehicle-mounted log arrangement master controller detection storage capacitor voltage is lower than voltage rating, middle-end storage capacitor
Power supply:
1) detection battery voltage is normal, then farad capacitor Reflector is arranged, into system protection mode.
5. vehicle-mounted log arrangement power supply protection method according to claim 1, it is characterised in that: the vehicle-mounted log arrangement
Master controller is connected with calibrating instrument;Detect whether vehicle-mounted log arrangement master controller is in after into the power down protection program
Calibration state calculates real-time vehicle running mileage if being not on calibration state, saves the mileage number of calculating
According to;Power loss indicator and Reflector are set simultaneously.
6. vehicle-mounted log arrangement power supply protection method according to claim 1-5, it is characterised in that: described vehicle-mounted
Log arrangement can obtain in real time and calculate VMT Vehicle-Miles of Travel data.
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CN201610487791.4A CN105928540B (en) | 2016-06-28 | 2016-06-28 | Vehicle-mounted log arrangement power supply protection method |
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CN201610487791.4A CN105928540B (en) | 2016-06-28 | 2016-06-28 | Vehicle-mounted log arrangement power supply protection method |
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CN105928540B true CN105928540B (en) | 2019-03-01 |
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CN106547243A (en) * | 2017-01-10 | 2017-03-29 | 湖北巴东博宇工贸有限公司 | Alternating-current charging pile controls panel control system |
CN111775710B (en) * | 2020-06-30 | 2021-05-18 | 上海挚达科技发展有限公司 | New energy automobile driving mileage calculation method |
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CN102033532A (en) * | 2010-11-23 | 2011-04-27 | 山东天海电装有限公司 | Bus control system for new energy automobile |
CN104237630A (en) * | 2013-06-18 | 2014-12-24 | 浙江正泰仪器仪表有限责任公司 | Single-phase electronic type keyboard prepayment meter |
CN104834369A (en) * | 2015-05-11 | 2015-08-12 | 北方信息控制集团有限公司 | Power failure data protection device of real-time control system |
CN204904360U (en) * | 2015-07-22 | 2015-12-23 | 延安大学 | Taximeter |
CN105620487A (en) * | 2016-02-26 | 2016-06-01 | 北京长城华冠汽车科技股份有限公司 | Method and device for estimating driving mileage of electric vehicles |
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2016
- 2016-06-28 CN CN201610487791.4A patent/CN105928540B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102033532A (en) * | 2010-11-23 | 2011-04-27 | 山东天海电装有限公司 | Bus control system for new energy automobile |
CN104237630A (en) * | 2013-06-18 | 2014-12-24 | 浙江正泰仪器仪表有限责任公司 | Single-phase electronic type keyboard prepayment meter |
CN104834369A (en) * | 2015-05-11 | 2015-08-12 | 北方信息控制集团有限公司 | Power failure data protection device of real-time control system |
CN204904360U (en) * | 2015-07-22 | 2015-12-23 | 延安大学 | Taximeter |
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