CN103646220B - A method of it reducing SD/TF cards and writes bad probability - Google Patents
A method of it reducing SD/TF cards and writes bad probability Download PDFInfo
- Publication number
- CN103646220B CN103646220B CN201310701973.3A CN201310701973A CN103646220B CN 103646220 B CN103646220 B CN 103646220B CN 201310701973 A CN201310701973 A CN 201310701973A CN 103646220 B CN103646220 B CN 103646220B
- Authority
- CN
- China
- Prior art keywords
- car
- cards
- mounted terminal
- processor
- frequency
- 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.)
- Active
Links
Landscapes
- Traffic Control Systems (AREA)
Abstract
The present invention discloses a kind of method that reduction SD/TF cards write bad probability, is set in the processor of car-mounted terminal comprising following steps：Step 1：The processor of car-mounted terminal obtains the real-time running state information of vehicle by the bare weight set sensor, passenger flow sensor and communication module of vehicle, and its status information is divided into the priority of different ranks；Step 2：For different priority, the processing frequency of the status information of the corresponding rank of the priority is set, which is to stick into the frequency that row write enters to SD/TF；Step 3：The processor of car-mounted terminal carries out classification processing according to the processing frequency to the status information of each rank.The present invention is by car-mounted terminal according to the method for state-event and SD/TF card-like state adjust automatically write frequencies, it successfully solves SD/TF cards to be easy to write bad entire professional problem, both SD/TF cards had been greatly reduced and have write bad probability, it reduces the possibility that recording is lost as far as possible again, balance is achieved between the two.
Description
Technical field
The present invention relates to the guard methods of SD/TF cards, and in particular to a method of it reducing SD/TF cards and writes bad probability.
Background technology
Present many GPS terminals or navigation screen all use the storage of large capacity SD/TF cards the big datas information such as to record, and one
As for, recording etc. big datas information be all often to be continuously written into SD/TF cards in 24 hours.And the SD/TF cards quality good and the bad on the market
It is uneven, and the write-in number of SD/TF cards is also limited, using file system, continuous read-write SD/TF cards are easy to make for a long time
It is damaged at SD/TF cards.Therefore, the write frequency of the service life of SD/TF cards, probability of damage and recording file is that have direct direct ratio to close
System.
Currently, the time interval of general recording file write-in SD/TF cards is fixed, and if its interval is small, SD/TF cards damage
Bad probability is high, but because the recording file duration of the abnormal conditions loss such as ride reset is just few；If its interval is long, although
The recording file duration that the probability of SD/TF cards damage is reduced, but lost under abnormal conditions is just more.Therefore, how this two
Equilibrium is obtained between person, can reduce the quantity for writing bad probability and reduce recording file loss as far as possible of SD/TF cards,
Become the problem in industry.
Invention content
Therefore, for above-mentioned problem, the present invention is directed to overcome the deficiency of the prior art, a kind of reduction SD/TF cards are provided
The method for writing bad probability, with realize i.e. can guarantee client need recording file do not lose, and can substantially reduce SD/TF cards write it is bad
The purpose of probability prompt the utilization rate of equipment to reduce the maintenance cost of GPS terminal or navigation screen.
For this purpose, the present invention proposes a kind of car-mounted terminal according to state-event and SD/TF card-like states, adjust automatically write-in frequency
The method of rate, successfully solves the problems, such as described in background technology, has both accomplished to ensure that the recording that client needs no longer is lost,
The probability that SD/TF cards are burnt out is greatly reduced again.Currently, similar scheme can be proposed there are no other producer in the market, it can
The bad probability of writing of SD/TF is substantially reduced, and can guarantee the integrality of recording file.
Specifically, the technical solution adopted in the present invention is as follows：A method of it reducing SD/TF cards and writes bad probability, be set to
In the processor of car-mounted terminal comprising following steps：
Step 1：The processor of car-mounted terminal is obtained by the bare weight set sensor, passenger flow sensor and communication module of vehicle
The real-time running state information picked up the car, and its status information is divided into the priority of different ranks；
Step 2：For different priority, the processing frequency of the status information of the corresponding rank of the priority is set, it should
Processing frequency is to stick into the frequency that row write enters to SD/TF；
Step 3：The processor of car-mounted terminal carries out at classification the status information of each rank according to the processing frequency
Reason.
Further, method of the invention further includes the steps that the processor adjust automatically processing frequency of car-mounted terminal, should
Step specifically includes：The processor compartment preset time of car-mounted terminal is monitored the use information of SD/TF cards, the use
When information includes the use of the residual capacity of SD/TF cards, the bad track number of SD/TF cards, the number of formatting and SD/TF cards
Between, if each parameter of use information is less than preset lowest threshold, the processor of car-mounted terminal carries out down processing frequency
It adjusts；If each parameter of use information is higher than preset highest threshold value, the processor of car-mounted terminal carries out processing frequency
It adjusts.To ensure the processing real-time running state information optimized.
Wherein, status information is divided into the priority of different ranks, such as is divided into A grades, B grades, C grades, D grades four
Priority, for a typical 24 hours recording car-mounted terminal, the state of different priorities is generally as discussed below：It plunders
Alarm condition is highest priority, and it is sub-priority to have other alarm conditions that phone incoming call breathes out or plunder outside alarm, just
Normal carrying is normal priority when driving, and when deadhead operation is low priority.
Because the write-in number of common SD/TF cards is limited, probably only 100,000 times, therefore the write frequency of SD/TF cards is not
It too frequently can otherwise be easy to write bad.Meanwhile because car-mounted terminal program is typically all the video and audio recording file for being designed to generate
It is firstly placed in memory, until SD/TF cards are written in fixed time interval again.If the time interval ride appearance that fruit does not arrive write-in is different
Situations such as often resetting, then the video and audio recording file in memory can be lost.So if write frequency is too low, write-in interval is excessive,
The probability for then losing video and audio recording file will increase.
The present invention does not need human intervention and is greatly lowered the probability that SD/TF cards are burnt out, while again by above method
The required important recording of client is saved as far as possible.
The present invention uses above-mentioned technical proposal, by car-mounted terminal according to state-event and SD/TF card-like state adjust automaticallies
The method of write frequency successfully solves SD/TF cards and is easy to write bad entire professional problem, both greatly reduces SD/TF
Card writes bad probability, and reduces the possibility that recording is lost as far as possible, and balance is achieved between the two.By above-mentioned
Scheme, in practice it has proved that, the maintenance cost of GPS terminal or navigation screen is greatly reduced, the use of prompt equipment is improved
Rate also reduces the operation cost of enterprise.
Specific implementation mode
In conjunction with specific implementation mode, the present invention is further described.
Because the write-in number of common SD/TF cards is limited, probably only 100,000 times, therefore the write frequency of SD/TF cards is not
It too frequently can otherwise be easy to write bad.Meanwhile because car-mounted terminal program is typically all the video and audio recording file for being designed to generate
It is firstly placed in memory, until SD/TF cards are written in fixed time interval again.If the time interval ride appearance that fruit does not arrive write-in is different
Situations such as often resetting, then the video and audio recording file in memory can be lost.So if write frequency is too low, write-in interval is excessive,
The probability for then losing video and audio recording file will increase.
According to the actual demand of our investigation and client, taxi company or the police transfer recording mainly following several
Aspect, 1, passenger's dispute, including general service detours, and connects the disputes such as people and electricity recruits dispute etc..2, it is the special emergencies feelings such as alarm
Condition.Before and after the important information that i.e. client needs turns over table in fact concentrated on empty and load, in the loaded vehicle stage, driver receives calls the stage
Deng.According to case above, car-mounted terminal program can pass through the bare weight set sensor of vehicle, passenger flow sensor, communication module etc.
State, is divided into different priority, such as by the real-time status for obtaining vehicle：A grades：Highest priority, B grades：Secondary high priority, C
Grade：Normal priority, D grades：Low priority.Different priority, ride program can automatically configure different write frequencies.This is write
Entering frequency cannot be artificially arranged, and be capacity of the ride according to SD/TF cards, residual capacity, the health status of SD/TF cards（Such as bad track
How much）, format the multiple parameters adaptive configurations such as number.But the configuration needs to meet following principle：1, high preferential
The written document frequency of grade has to the write frequency higher than low priority, that is to say, that highest priority, time-write interval is most
It is few.2, SD/TF cards bad track is more, and overall write frequency will reduce, and formatting number is more, and overall write frequency will reduce, newly
Card, overall write frequency highest.3, with the increase of SD/TF card usage times, population frequency will be gradually reduced.Above by ride
According to car-mounted terminal, TF card state self-adaption judges software, can only manually read parameter, cannot interfere.
Specifically, as one embodiment, a kind of method for reducing SD/TF cards and writing bad probability of the present invention is set to vehicle-mounted end
In the processor at end comprising following steps：
Step 1：The processor of car-mounted terminal is obtained by the bare weight set sensor, passenger flow sensor and communication module of vehicle
The real-time running state information picked up the car, and its status information is divided into the priority of different ranks；Status information is drawn
It is divided into the priority of different ranks, such as is divided into A grades, B grades, four C grades, D grades priority, for one typical 24 small
For Shi Luyin car-mounted terminals, the state of different priorities is generally as discussed below：Robbery alarm condition is highest priority, there is electricity
Other alarm conditions talked about incoming call exhalation or plundered outside alarm are sub-priority, and normal carrying is normal priority when driving,
It is low priority when deadhead operation；Certain above-mentioned priority can also be set as the case may be；
Step 2：For different priority, the processing frequency of the status information of the corresponding rank of the priority is set, it should
Processing frequency is to stick into the frequency that row write enters to SD/TF；For example, SD card memory capacity 8G, neocaine, without bad track in the case of,
Following setting can be done：A grades of highest priority written document frequencies 1 minute are primary；B level high priority written documents frequency 2 is divided 30 seconds
Once；C grades of normal priority written document frequencies 5 minutes are primary；D grades of low priority written document frequencies 10 minutes are primary；
Step 3：The processor of car-mounted terminal carries out at classification the status information of each rank according to the processing frequency
Reason；
Step 4：The processor compartment preset time of car-mounted terminal（Such as 10 days）Adjust automatically processing frequency：Vehicle first
The processor of mounted terminal is monitored the use information of SD/TF cards every the preset time, which includes SD/TF cards
Residual capacity, the usage time of the bad track number of SD/TF cards, the number of formatting and SD/TF cards, if use information
Each parameter is less than preset lowest threshold, then the processor of car-mounted terminal lowers processing frequency；If use information
Each parameter is less than preset highest threshold value, then the processor of car-mounted terminal raises processing frequency.To ensure to optimize
Processing real-time running state information.
One typical SD/TF card write parameters reading is as follows, such as：
A grades of highest priority written document frequencies 1 minute are primary；
B level high priority written documents frequency 2 divide 30 seconds it is primary；
C grades of normal priority written document frequencies 5 minutes are primary；
D grades of low priority written document frequencies 10 minutes are primary.
Then a typical taxi car-mounted terminal sound-recording function may be used car-mounted terminal it is automatic setting be written
Control：
1 writes recording file when car-mounted terminal judges taxi for usual empty wagons transport condition, using D grades of frequencies.
2 have car-mounted terminal to detect that passenger comes up by sensor, and it is loaded vehicle that empty wagons, which turns over table, and ride will deposit memory immediately
Middle written document ensures that the recording that before passenger plays table and driver links up will not lose, while written document frequency adjust automatically into SD/TF cards
It is C grades.
3 determine passenger getting off car when car-mounted terminal by sensor, and it is empty wagons to cut and detect that loaded vehicle turns over table, in original mechanism
A file is written in inferior empty wagons immediately after 2 minutes, ensure that the recording that after passenger turns over table and driver links up will not lose, while writing text
Part frequency is automatically regulated to be D grades.
After 4 car-mounted terminals detect that communication module telephony feature starts, written document frequency is adjusted to B grades, records driver's
Call-information.
5 detect that plundering alarm button is punished or when other high priority state when car-mounted terminal, written document frequency
It is adjusted to A grades.
By above method, does not need human intervention and be greatly lowered the probability that SD/TF cards are burnt out, meanwhile, with SD/
The use of TF card is not used the reduction of capacity according to it, the increase of bad track, formats the parameters such as number, the processing of car-mounted terminal
Ride program on device can adaptively adjust configuration above-mentioned parameter.The present invention does not need human intervention with regard to big by above method
The probability that SD/TF cards are burnt out is reduced greatly, while saving the required important recording of client as far as possible again.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (1)
1. a kind of method for reducing SD/TF cards and writing bad probability, is set in the processor of car-mounted terminal comprising following steps：
Step 1：The processor of car-mounted terminal obtains vehicle by the bare weight set sensor, passenger flow sensor and communication module of vehicle
Real-time running state information, and its status information is divided into the priority of different ranks；
Step 2：For different priority, the processing frequency of the status information of the corresponding rank of the priority, the processing are set
Frequency is to stick into the frequency that row write enters to SD/TF；
Step 3：The processor of car-mounted terminal carries out classification processing according to the processing frequency to the status information of each rank；
Further include the steps that the processor adjust automatically processing frequency of car-mounted terminal, which specifically includes：The place of car-mounted terminal
The reason device interval preset time is monitored the use information of SD/TF cards, which includes that the remaining of SD/TF cards is held
Amount, the usage time of the bad track number of SD/TF cards, the number of formatting and SD/TF cards, if each parameter of use information is low
In preset lowest threshold, then the processor of car-mounted terminal lowers processing frequency；If each parameter of use information is high
In preset highest threshold value, then the processor of car-mounted terminal raises processing frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310701973.3A CN103646220B (en) | 2013-12-19 | 2013-12-19 | A method of it reducing SD/TF cards and writes bad probability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310701973.3A CN103646220B (en) | 2013-12-19 | 2013-12-19 | A method of it reducing SD/TF cards and writes bad probability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103646220A CN103646220A (en) | 2014-03-19 |
| CN103646220B true CN103646220B (en) | 2018-08-14 |
Family
ID=50251433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310701973.3A Active CN103646220B (en) | 2013-12-19 | 2013-12-19 | A method of it reducing SD/TF cards and writes bad probability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103646220B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903792B (en) * | 2017-12-08 | 2024-02-27 | 比亚迪股份有限公司 | Method, device and equipment for storing and reading parameters of energy storage battery in energy storage system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201897826U (en) * | 2010-08-24 | 2011-07-13 | 上海中科深江电动车辆有限公司 | Vehicle-mounted information recording instrument with Micro SD (secure digital) card memory interface |
| DE102011087509A1 (en) * | 2011-12-01 | 2013-06-06 | Robert Bosch Gmbh | Sensor transmission device and method for transmitting useful data from a plurality of sensors to a bus control device for a vehicle |
| CN103206961A (en) * | 2013-03-31 | 2013-07-17 | 惠州市德赛西威汽车电子有限公司 | Vehicle navigation system and information storing method thereof |
-
2013
- 2013-12-19 CN CN201310701973.3A patent/CN103646220B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201897826U (en) * | 2010-08-24 | 2011-07-13 | 上海中科深江电动车辆有限公司 | Vehicle-mounted information recording instrument with Micro SD (secure digital) card memory interface |
| DE102011087509A1 (en) * | 2011-12-01 | 2013-06-06 | Robert Bosch Gmbh | Sensor transmission device and method for transmitting useful data from a plurality of sensors to a bus control device for a vehicle |
| CN103206961A (en) * | 2013-03-31 | 2013-07-17 | 惠州市德赛西威汽车电子有限公司 | Vehicle navigation system and information storing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103646220A (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9501690B2 (en) | Passive driver identification | |
| JP2023116493A (en) | Device, in-vehicle equipment, and system | |
| JP6159915B2 (en) | Work condition management system, work condition management apparatus and computer program | |
| US11991480B2 (en) | Recording device, recording method, reproduction method, and program to acquire imaging data of inside or outside of a vehicle | |
| CN105225509A (en) | A kind of road vehicle intelligent early-warning method, device and mobile terminal | |
| DE102013200831A1 (en) | METHOD AND DEVICE FOR PROVIDING LOAD STATUS MESSAGES | |
| CN103646220B (en) | A method of it reducing SD/TF cards and writes bad probability | |
| US8732743B2 (en) | Passenger information control device and method for providing video data for passenger information control device | |
| CN108257610A (en) | A kind of vehicle device and corresponding voice transmission method and system | |
| CN115480171A (en) | Battery voltage acquisition fault warning method and system | |
| CN105979278A (en) | Saving method and device of live videos | |
| CN115774796A (en) | Video data step-by-step storage method and device, electronic equipment and storage medium | |
| CN112419537A (en) | Image storage method, automobile data recorder and device with storage function | |
| CN118196927A (en) | Method for uploading and storing automobile data recorder | |
| CN104469685A (en) | Method and device for sending position information by mobile terminal | |
| CN201362188Y (en) | Automobile combination instrument | |
| US8294578B2 (en) | Alarm system and method for detachable electronic device | |
| CN114900473A (en) | Transmission method for transmitting emergency data to security platform and transmission platform thereof | |
| CN203520874U (en) | Vibration damping effect-improved vehicle-mounted hard disk video recorder apparatus | |
| CN203870688U (en) | Public transportation digital television remote monitoring system | |
| CN112118357A (en) | Intelligent terminal management method and device, storage medium and electronic device | |
| CN107580277A (en) | A kind of Vehicular audio playing system | |
| CN208479621U (en) | Car-mounted terminal | |
| JP2022097187A (en) | Information processing device, mobile, program, and information processing method | |
| JP2767709B2 (en) | Cause analysis equipment for accidents at intersections |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 361000 Fujian Province Xiamen Torch High tech Zone Software Park Innovation Building C Zone 303-E Patentee after: Xiamen Yaxun Zhilian Technology Co.,Ltd. Country or region after: China Address before: No.46 guanri Road, phase II, software park, Xiamen City, Fujian Province, 361000 Patentee before: XIAMEN YAXON NETWORK Co.,Ltd. Country or region before: China |