CN202615465U - On-board unit - Google Patents
On-board unit Download PDFInfo
- Publication number
- CN202615465U CN202615465U CN 201220129174 CN201220129174U CN202615465U CN 202615465 U CN202615465 U CN 202615465U CN 201220129174 CN201220129174 CN 201220129174 CN 201220129174 U CN201220129174 U CN 201220129174U CN 202615465 U CN202615465 U CN 202615465U
- Authority
- CN
- China
- Prior art keywords
- current value
- board units
- module
- unit
- power consumption
- 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.)
- Expired - Fee Related
Links
- 238000005070 sampling Methods 0.000 claims abstract description 75
- 230000002596 correlated effect Effects 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims description 12
- 230000000875 corresponding effect Effects 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 19
- 238000012360 testing method Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000007689 inspection Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides an on-board unit. A sampling resistor is connected between a power consumption module and a power supply in series, a sample resistance value IR of the sampling resistor is measured by a processor to obtain a correlated sampling current value, and the size of the correlated sampling current value and a preset standard threshold are judged to detect whether the on-board unit is normal or not. An external detection device is not needed to detect circuit failure, thus the implementation cost is low, the detection mechanism is simple, the consistency is strong, the possibility in false detection and undetected error is eliminated, the reliable detection mechanism is provided for large-scale producing the qualified on-board unit and simultaneously the repair rate of the products is also reduced.
Description
Technical field
The utility model relates to intelligent transportation field, specifically, relates to the board units in the intelligent transportation field.
Background technology
At present; The board units that uses in the electronic charging system without parking promotes passage rate has all adopted not power down of processor in design mechanism in order to shorten exchange hour, and promptly processor power supply power supply but the electric power system of self controlling the process of exchange of whole board units and be responsible for cutting off peripheral hardware is directly connected to above the power supply to guarantee that processor has always.When the closing the transaction preprocessor cuts off the power supply of peripheral hardware and with self changing park mode over to reduce power consumption, prolongs the serviceable life of board units.After board units received wake-up signal once more, processor at first changed duty from dormant state is opened peripheral hardware more gradually after waking up power switch over to by board units.Can shorten the wakeup time of board units and then shorten exchange hour through this design mechanism, promote passage rate.
Because processor is in electricity condition is arranged always; Software may run and fly to cause Overall Power Consumption to be in a higher state very soon the power consumption light in the power supply under the situation of being interfered; Reduce the serviceable life of board units greatly, also increased the later maintenance cost of product.In design, need a kind of mechanism for this reason and can in time detect the residing state of current board units; In case find to have start at once unusually emergency mechanism with the board units recovering state to normal condition; And because the singularity of board units power supply plan; Voltage is the duty of reacting vehicle carrier unit truly, therefore has only electric current the present situation of reacting vehicle carrier unit to greatest extent.
The exchange hour of board units is stable, working current is stable is to infer the board units important indicator in serviceable life; For this reason; The fault detect of board units must be precisely effectively; And for the large-scale mass production of board units, the indicator consilience of board units also is an important research project.
And; In the semi-manufacture test of fabrication phase; Testing current is only to the current power dissipation under the board units dormant state; This index of testing current not in the test item of individual module, but module that sometimes can operate as normal might also have hidden danger such as working current is bigger than normal, power consumption instability etc., and these problems can't test out with present testing mechanism.Though can test this index through the mode of external instrument, be a difficult problem in the operability of production line, not only increase and detect cost, and have the possibility of flase drop.
The utility model content
For solving the problem that exists in the prior art; The utility model provides a kind of board units, and said board units is provided with power consumption module, power supply and sampling resistor, and said power consumption module comprises processor; Said sampling resistor is connected between said power supply and the said power consumption module
Said processor comprises the sample rate current value I that measures said sampling resistor
RMeasuring unit, and,
The detecting unit that is connected with said measuring unit is according to sample rate current value I
RDraw the correlated sampling current value, through judging the correlated sampling current value I
RWhether with the size of preset standard threshold values, it is unusual to detect said board units.
The board units that the utility model provides through the sampling resistor of between power consumption module and power supply, connecting, is measured the sample rate current value I of sampling resistor by processor
RDraw the correlated sampling current value, through judging the correlated sampling current value I
RWhether with the size of preset standard threshold values, it is unusual to detect said board units, and this scheme need not external checkout equipment just can the testing circuit fault; Can detect the OBU current state in real time, realize the fault detection capability of board units from semi-manufacture detection, finished product detection, transaction to distribution or the like a series of processes, not only implementation cost is low; Testing mechanism is simple, and consistance is strong, and testing result is precisely effective; Eliminated the possibility of flase drop, omission; Prolonged the serviceable life of board units, avoided getting into behind the board units false wake-up deadlock state or software and run the phenomenon that flies and take place, made the later stage reduce greatly the maintenance cost of board units.For large-scale mass production has the board units of quality testing mechanism reliably is provided, has also reduced the repair rate of product simultaneously.
Simultaneously, the board units that the utility model provides can form the different detection standard to the board units of different power consumption and performance through test, for the board units user provides detailed fault error message prompting mechanism; The combined function recovery mechanism; Not only make things convenient for the user, simplified the maintenance flow of board units after sale, also promoted the quality of product simultaneously; Further enlarged the market of board units, advanced the development of board units to intelligent direction.
Description of drawings
Fig. 1 is the sample method flow diagram of machine-processed detection failure of the board units applied current of the utility model embodiment.
Fig. 2 a is the current detecting system structural drawing that is applicable to board units of the utility model embodiment 1.
Fig. 2 b is the current detecting system method flow diagram that is applicable to board units of the utility model embodiment 1.
Fig. 3 is the current detecting system structural drawing that is applicable to board units of the utility model embodiment 2.
Fig. 4 is the current detecting system structural drawing that is applicable to board units of the utility model embodiment 3.
Embodiment
Describe the preferred embodiment of the utility model in detail below in conjunction with accompanying drawing.
Embodiment 1
Referring to Fig. 1, the sample disposal route of machine-processed detection failure of the board units applied current of present embodiment comprises:
S110, the sampling resistor of connecting between power supply and the power consumption module;
S120 is through the sample rate current value I of measuring unit measurement sampling resistor
R
S130, through detecting unit according to sample rate current value I
RDraw the correlated sampling current value, and judge correlated sampling current value and preset standard threshold values I
BSize, whether the inspection vehicle carrier unit unusual.
Referring to Fig. 2 a; The current detecting system that is applicable to board units 200 of present embodiment comprises power consumption module 210, sampling resistor 220 and power supply 230; Power consumption module 210 comprises processor (MCU) 211; Sampling resistor 220 is connected between power supply 230 and the power consumption module 210, and wherein, MCU211 also comprises the sample rate current value I that measures sampling resistor 220
RMeasuring unit 212, and according to sample rate current value I
RDraw the correlated sampling current value, through judging the size of correlated sampling current value and preset standard threshold values, the detecting unit 213 whether inspection vehicle carrier unit 200 is unusual.
The correlated sampling current value can be instruction validity current value in the present embodiment, and wherein, MCU211 also comprises timing unit 214, and timing unit 214 is used for the t1 moment before programmed instruction is carried out beginning, and the first sample rate current value I is measured in indication measurement unit 212
Rt1, and at programmed instruction execution end back t2 constantly, the second sample rate current value I is measured in indication measurement unit 212
Rt2And,
Detecting unit 213 calculates instruction validity current value, i.e. sample rate current value difference Δ I
R=I
Rt2-I
Rt1Referring to Fig. 2 b, in the present embodiment, the programmed instruction object of detection is " opening 13.56M Card Reader radio frequency ", preset standard threshold values I
BBe the standard value that tests out in the research and development design phase, the permissible error value is 5mA, and then the method for sampling of the programmed instruction instruction validity current value of " opening 13.56M Card Reader radio frequency " comprises:
S210, in the t1 moment before " opening 13.56M Card Reader radio frequency " programmed instruction is carried out beginning, the first sample rate current value I is measured in timing unit indication measurement unit
Rt1
S220, in the t2 moment after " opening 13.56M Card Reader radio frequency " programmed instruction is carried out end, the second sample rate current value I is measured in timing unit indication measurement unit
Rt2
S230, detecting unit calculate instruction validity current value, i.e. sample rate current value difference Δ I
R=I
Rt2-I
Rt1
S240, detecting unit decision instruction validity sample rate current value and preset standard threshold values I
BThe size detection board units whether unusual;
If (I
B+ 5)≤Δ I≤I
B, then instruction is carried out normally, and board units is not done any operation, if not in the error range that allows, execution in step S250 then;
S250 carries out the alarm prompting or changes exception handling over to, carries out power-off restoration.
Wherein, the resistance of sampling resistor 220 can be 1 ohm, then sample rate current value I
RBe converted into sample voltage value V
R1, and power consumption module 210 comprises at least one module in card reading module, radio-frequency module, acoustic control module or the Liquid Crystal Module.
Embodiment 2
Referring to Fig. 1, the sample processing mode of machine-processed detection failure of the board units applied current of present embodiment comprises:
S110, the sampling resistor of connecting between said power supply and the power consumption module;
S120 is through the sample rate current value I of measuring unit measurement sampling resistor
R
S130, through detecting unit according to sample rate current value I
RDraw the correlated sampling current value, and judge correlated sampling current value and preset standard threshold values I
BSize, whether the inspection vehicle carrier unit unusual.
Referring to Fig. 3; The current detecting system that is applicable to board units 300 of present embodiment comprises power consumption module 310, sampling resistor 320 and power supply 330; Power consumption module 310 comprises processor (MCU) 311; Sampling resistor 320 is connected between power supply 330 and the power consumption module 310, and wherein MCU311 also comprises the sample rate current value I that measures sampling resistor 320
RMeasuring unit 312, and according to sample rate current value I
RDraw the correlated sampling current value, through judging the size of correlated sampling current value and preset standard threshold values, the detecting unit 313 whether inspection vehicle carrier unit 300 is unusual.
The correlated sampling current value can be average transaction current value in the present embodiment; Wherein, MCU311 comprises timing unit 314; Timing unit 314 is used for said board units, and t1 picks up counting being waken up constantly, and the t that extremely said board units is accomplished transaction is in the period, and k=t is put in indication measurement unit 312 in the interval time of appointment
1+ t/n measures some sample rate current value I of said sampling resistor 320
RtkAnd detecting unit 313 calculates average transaction current value, i.e. average sample current value
Wherein, on average the conclude the business method of sampling of current value comprises:
Be t/n (n＞0) interval time that MCU is provided with appointment;
Put k=t in the interval time of appointment
1+ t/n measures the sample rate current value I of said sampling resistor 320
RtkPerhaps sample voltage value V
Rtk
Calculate average transaction current value through said MCU; When the resistance that comprises average sample current value
or sampling resistor 220 is 1 ohm; Then sample rate current value IR is converted into sample voltage value VR1, and the current value of then on average concluding the business is average sample magnitude of voltage
and power consumption module 210 comprises at least one module in card reading module, radio-frequency module, acoustic control module or the Liquid Crystal Module.
Embodiment 3
Referring to Fig. 1, the board units applied current of present embodiment sample machine-processed detection failure processing mode comprise:
S110, the sampling resistor of connecting between power supply and the power consumption module;
S120 is through the sample rate current value I of measuring unit measurement sampling resistor
R
S230, through detecting unit according to sample rate current value I
RDraw the correlated sampling current value, and judge correlated sampling current value and preset standard threshold values I
BSize, whether the inspection vehicle carrier unit unusual.
Referring to Fig. 4; The current detecting system that is applicable to board units 400 of present embodiment comprises power consumption module 410, sampling resistor 420 and power supply 430; Power consumption module 410 comprises processor (MCU) 411; Sampling resistor 420 is connected between power supply 430 and the power consumption module 410, and wherein, MCU411 also comprises the sample rate current value I that measures sampling resistor 420
RMeasuring unit 412, and according to sample rate current value I
RDraw the correlated sampling current value, through judging the size of correlated sampling current value and preset standard threshold values, the detecting unit 413 whether inspection vehicle carrier unit 400 is unusual.
The power consumption module 410 of present embodiment also comprises the switch control unit 414 that is connected with measuring unit; Be used for opening respectively or close the power switch of each module of said power consumption module; And under the different on off states of each module, control the current sampling data that said measuring unit 412 is measured corresponding sampling resistor 420.
The correlated sampling current value can be the static current of lcd sampled value in the present embodiment; The method of sampling comprises: through switch control unit 414; Open or close the power switch of each module in the said power consumption module 410 respectively; Under the different on off states of each module, measure the current sampling data of corresponding sampling resistor 420 through measuring unit.
In the present embodiment; The reading card module is carried out current power dissipation and is detected; Opening or open separately the current power dissipation that designs when closing card reading module again after the card reading module separately is 35mA～40mA; If the sample rate current value not in this scope, is then stored detection record and got into the reparation pattern, repair this circuit.
Wherein, the resistance of sampling resistor 420 can be 1 ohm, then sample rate current value I
RBe converted into sample voltage value VR1.
Wherein, power consumption module 210 has comprised at least one module in card reading module, radio-frequency module, acoustic control module or the Liquid Crystal Module.
The embodiment of the utility model is not only limited to above-mentioned preferred embodiment, through the sampling resistor of between power consumption module and power supply, connecting, is measured the sample rate current value I of sampling resistor by processor
RDraw the correlated sampling current value, through judging the correlated sampling current value I
RSize with the preset standard threshold values; Whether detect said board units unusual; This scheme need not external checkout equipment just can the testing circuit fault; Can detect the OBU current state in real time, realize the fault detection capability of board units from semi-manufacture detection, finished product detection, transaction to distribution or the like a series of processes.
The cost that said board units is not only implemented is low; Testing mechanism is simple, and consistance is strong, and testing result is precisely effective; Eliminated the possibility of flase drop, omission; Prolonged the serviceable life of board units, avoided getting into behind the board units false wake-up deadlock state or software and run the phenomenon that flies and take place, made the later stage reduce greatly the maintenance cost of board units.For large-scale mass production has the board units of quality testing mechanism reliably is provided, has also reduced the repair rate of product simultaneously.
Simultaneously, the board units that the utility model provides can form the different detection standard to the board units of different power consumption and performance through test, for the board units user provides detailed fault error message prompting mechanism; The combined function recovery mechanism; Not only make things convenient for the user, simplified the maintenance flow of board units after sale, also promoted the quality of product simultaneously; Further enlarged the market of board units, advanced the development of board units to intelligent direction.
Claims (9)
1. board units, said board units comprises power consumption module, power supply, said power consumption module comprises processor, it is characterized in that, also comprises sampling resistor,
Said sampling resistor is connected between said power supply and the said power consumption module,
Said processor comprises the sample rate current value I that measures said sampling resistor
RMeasuring unit, and,
The detecting unit that is connected with said measuring unit is according to sample rate current value I
RDraw the correlated sampling current value, whether through judging the size of correlated sampling current value and preset standard threshold values, it is unusual to detect said board units.
2. board units according to claim 1 is characterized in that, said sampling resistor is that resistance is 1 ohm a resistance R.
3. board units according to claim 1; It is characterized in that; Said correlated sampling current value comprises instruction validity current value; Said processor comprises the timing unit that is connected with said measuring unit, and said timing unit is used for the t1 moment before programmed instruction is carried out beginning, and the first sample rate current value I is measured in the indication measurement unit
Rt1, and at programmed instruction execution end back t2 constantly, the second sample rate current value I is measured in the indication measurement unit
Rt2And,
Said detecting unit is according to the said first sample rate current value I
Rt1With the second sample rate current value I
Rt2Calculate instruction validity current value, i.e. sample rate current value difference Δ I
R=I
Rt2-I
Rt1
4. board units according to claim 2; It is characterized in that; Said correlated sampling current value comprises instruction validity current value; Said processor comprises the timing unit that is connected with said measuring unit, and said timing unit is used for the t1 moment before programmed instruction is carried out beginning, and the first sample voltage value V is measured in the indication measurement unit
Rt1, and at programmed instruction execution end back t2 constantly, the second sample voltage value V is measured in the indication measurement unit
Rt2And,
Said detecting unit is according to the said first sample voltage value V
Rt1With the second sample voltage value V
Rt2Calculate instruction validity current value, i.e. sampled voltage value difference Δ V
R=V
Rt2-V
Rt1
5. board units according to claim 1; It is characterized in that; Said correlated sampling current value comprises average transaction current value, and said processor comprises the timing unit that is connected with said measuring unit, and said timing unit is used for said board units, and t1 picks up counting being waken up constantly; The t that extremely said board units is accomplished transaction indicates said measuring unit to put k=t in the interval time of appointment in the period
1+ t/n measures some sample rate current value I of said sampling resistor
RtkAnd,
Said detecting unit is according to said some sample rate current value I
RtkCalculate average transaction current value, i.e. the average sample current value
6. board units according to claim 2; It is characterized in that; Said correlated sampling current value comprises average transaction current value, and said processor comprises the timing unit that is connected with said measuring unit, and said timing unit is used for board units, and t1 picks up counting being waken up constantly; Accomplish to said board units in the time period t of transaction, indicate said measuring unit to put k=t in the interval time of appointment
1+ t/n measures some sample voltage value V of said sampling resistor
RtkAnd,
Said detecting unit is according to said some sample voltage value V
RtkCalculate average transaction current value, i.e. the average sample magnitude of voltage
7. board units according to claim 1; It is characterized in that; Said correlated sampling current value comprises the power consumption sample rate current value of each module in the power consumption module, comprises the switch control unit that is connected with said measuring unit, is used for opening respectively or close the power switch of each module of said power consumption module; And under the different on off states of each module, control the sample rate current value that said measuring unit is measured corresponding sampling resistor.
8. board units according to claim 2; It is characterized in that; The correlated sampling current value is the power consumption voltage sample value of each module in the power consumption module, comprises the switch control unit that is connected with said measuring unit, is used for opening respectively or close the power switch of each module of said power consumption module; And under the different on off states of each module, control the voltage sample value that said measuring unit is measured corresponding sampling resistor.
9. according to the wherein arbitrary described board units of claim 1 to 8, it is characterized in that said power consumption module comprises at least one module in card reading module, radio-frequency module, acoustic control module or the Liquid Crystal Module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220129174 CN202615465U (en) | 2012-03-30 | 2012-03-30 | On-board unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220129174 CN202615465U (en) | 2012-03-30 | 2012-03-30 | On-board unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615465U true CN202615465U (en) | 2012-12-19 |
Family
ID=47349144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220129174 Expired - Fee Related CN202615465U (en) | 2012-03-30 | 2012-03-30 | On-board unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202615465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518483A (en) * | 2013-09-26 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Overload protection system |
| CN105717397A (en) * | 2016-04-08 | 2016-06-29 | 珠海格力电器股份有限公司 | Air conditioner communication fault detection method and system |
-
2012
- 2012-03-30 CN CN 201220129174 patent/CN202615465U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518483A (en) * | 2013-09-26 | 2015-04-15 | 鸿富锦精密工业（深圳）有限公司 | Overload protection system |
| CN105717397A (en) * | 2016-04-08 | 2016-06-29 | 珠海格力电器股份有限公司 | Air conditioner communication fault detection method and system |
| CN105717397B (en) * | 2016-04-08 | 2018-12-11 | 珠海格力电器股份有限公司 | Air conditioner communication fault detection method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103557910A (en) | Intelligent water meter automatic detection device and method | |
| CN102981418A (en) | Power management for audience measurement meters | |
| CN103576092A (en) | Remote controller and battery capacity detection device and method thereof | |
| CN102826053A (en) | Apparatus and method for monitoring awaking based on battery connection of vehicle | |
| CN202615465U (en) | On-board unit | |
| CN105425004A (en) | Electric energy measuring equipment and method and device for detecting electricity stealing event of same | |
| CN203101981U (en) | Environmental monitoring system | |
| CN110646654A (en) | Electricity larceny prevention detection system | |
| CN109917133A (en) | A kind of low power-consumption blood glucose meter and its control method of magnetic switch control | |
| CN108179927A (en) | A kind of low-power consumption door sensor state-detection controller and system | |
| CN106093560B (en) | The full decompression of extremely low power dissipation detects control method under ammeter power-down state | |
| CN116872784A (en) | Verification method and device of battery monitoring mechanism, electronic equipment and storage medium | |
| CN202329722U (en) | Intelligent gas meter metering device | |
| CN206281938U (en) | A kind of cable fault detector | |
| CN202661610U (en) | Remote controller and battery capacity detection device thereof | |
| Li et al. | Battery management system | |
| CN106768413A (en) | Multipoint temperature detecting device | |
| CN206876859U (en) | A kind of intelligent electric energy meter detection means of 3D magnetic switches stationary magnetic field interference monitoring | |
| CN102608373A (en) | Electric larceny detecting method and system, and electricity meter | |
| CN207924652U (en) | A kind of computer hardware test system | |
| CN205790272U (en) | A kind of EMUs emergency starting power supply with remote monitoring function | |
| CN207301171U (en) | A kind of intelligent electric meter | |
| Li et al. | Low power strategy design for battery management system | |
| CN204256039U (en) | A kind of voltage check device | |
| CN110161403A (en) | A kind of single-phase intelligent electric energy meter relay driving chip-detecting apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN GENVICT TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN JINYI TECHNOLOGIES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Nanshan District Keyuan Road Shenzhen city Guangdong province 518057 Tsinghua building A building 12 layer Patentee after: SHENZHEN GENVICT TECHNOLOGY CO., LTD. Address before: Nanshan District Keyuan Road Shenzhen city Guangdong province 518057 Tsinghua building A building 12 layer Patentee before: Shenzhen Jinyi Technologies Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20210330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |