CN202025073U - Battery patrol device with multipath input - Google Patents
Battery patrol device with multipath input Download PDFInfo
- Publication number
- CN202025073U CN202025073U CN2011200263070U CN201120026307U CN202025073U CN 202025073 U CN202025073 U CN 202025073U CN 2011200263070 U CN2011200263070 U CN 2011200263070U CN 201120026307 U CN201120026307 U CN 201120026307U CN 202025073 U CN202025073 U CN 202025073U
- Authority
- CN
- China
- Prior art keywords
- battery
- cpu
- resistance
- voltage group
- input end
- 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
Images
Abstract
A battery patrol device with a multipath input comprises an industrial control module, a battery detecting module and a main machine. The industrial control module comprises a substrate and a voltage group, wherein the voltage group comprises a multipath univoltage, and the univoltage is connected with the battery detecting module. The battery detecting module comprises a resistance voltage dividing network, an analog control switch, a high-accuracy collection chip and a central processing unit (CPU). The resistance voltage dividing network is connected with the voltage group, a signal input end of the resistance voltage dividing network is connected with an input end of the analog control switch, an output end of the analog control switch is connected with an input end of the high-accuracy collection chip, and output end of the high-accuracy collection chip is connected with an input end of the CPU, and an output end of the CPU is connected with an input end of the main machine through an RS485 bus mechanism. The battery patrol device with the multipath input enhances comprehensiveness of the system and can satisfy technical requirements of being fast in detecting speed, low in cost, long in service life, high in accuracy and good in anti-interference performance.
Description
Technical field
The utility model relates to a kind of checkout equipment, particularly relates to a kind of multichannel input accumulator checking instrument.
Technical background
Accumulator is used more and more widely in civilian and commercial production, and for safeguards system is moved continually and steadily, efficient cheap, the accurately convenient and fast practical accumulator pick-up unit of research and design is very necessary.
Conventional batteries is patrolled and examined technical scheme at present, has relay to switch method, serial digital-to-analogue transformation approach, resistor network method, linear optical coupling or digital optocoupler penalty method, relay switching method etc.The detection speed of relay switching method is slow, and has the mechanical life and action noise of limited number of times; The complex structure of serial analog to digital conversion method, and serial analog to digital converter ADC cost is higher; The resistor network method, adopt resistance to constitute potential-divider network, each battery tie point voltage attenuation of whole battery group to electronic analog swtich acceptable degree, this circuit measuring loop and accumulator loop do not isolate and have security hidden trouble, and adopt network resistor to carry out the gradient decay and can cause sampling precision to successively decrease; Adopt linear optical coupling to realize that the battery tension of isolating detects, but cost is too high.
The method that detects exists technical matterss such as detection speed is slow, the life-span is short, cost is high, precision is low.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, and a kind of multichannel input battery logging is provided, and satisfies the technological difficulties that detection speed is slow soon, cost is low, the life-span is long, precision is high.
In order to realize this purpose, the utility model has adopted following technical scheme:
A kind of multichannel input battery logging, comprise the industry control module, battery detecting module and main frame, described industry control module comprises substrate and voltage group, it is characterized in that: described voltage group comprises the multichannel univoltage, described voltage group is connected with the battery detecting module, described battery detecting module comprises resistance pressure-dividing network, the simulation gauge tap, high precision collecting chip and CPU, described resistance pressure-dividing network is connected with described voltage group, described resistance pressure-dividing network signal output part is connected with simulation gauge tap input end, described simulation gauge tap output terminal is connected with high precision collecting chip input end, described high precision collecting chip output is connected with the CPU input end, and described CPU output terminal is connected with the main frame input end by RS485 bus mechanism.
Described resistance pressure-dividing network comprises a plurality of parallel resistor strings, and the number of described resistance string and univoltage way are complementary.
Described resistance string comprises two resistance of series connection.
Described resistance pressure-dividing network comprises a ground wire, and described ground wire is connected to the centre of voltage group, gathers gradient and reduces by half accordingly, avoided because of the too high error of gradient too big.
Described voltage group comprises 18 road univoltages.
Described high precision collecting chip is an ICL7135 high precision collecting chip, and this chip precision height, cost are low, functional good.
Described CPU is STC12C5A16AD CPU.
The resistance of described resistance string is the high-precision metal film resistance, can reduce error, strengthens acquisition precision.
During the utility model work, use the high precision reference source chip that battery pack collection value is revised, eliminate resistance error and device connecting wire error, from 1 road to 18 tunnel circulation of simulation gauge tap is switched, and also from 1 road to 18 road circle collection switching of high precision collecting chip, high precision collecting chip collection magnitude of voltage converts the digit pulse ripple to and is sent to CPU, and CPU combines closely by external interrupt and counter and calculates the digit pulse ripple, and the pulsating wave number converts voltage to be measured to by special processing.CPU receives by serial ports and interrupts, and receives the bus data bag and deposits send buffer in, and send buffer is processed processing, examines correct back voltage to be measured is sent to main frame.Realize and host communication that by Rs485 bus mechanism main frame is gathered voltage to battery and diagnosed, the investigation potential safety hazard improves the security of system performance.
The utility model contrast prior art has following advantage:
Strengthened overall system performance, satisfied that detection speed is slow fast, cost is low, the life-span is long, precision is high, the technological difficulties of strong anti-interference performance.
Description of drawings
Accompanying drawing 1 is multichannel input battery logging fundamental diagram.
Embodiment
Referring now to accompanying drawing, further describe the utility model.
As shown in Figure 1, a kind of multichannel input battery logging comprises industry control module 10, battery detecting module 2 and main frame 4.
Industry control module 10 comprises substrate and voltage group 11, and voltage group 11 comprises the multichannel univoltage, and voltage group 11 is connected with battery detecting module 2, and voltage group 11 comprises 18 road univoltages.
Battery detecting module 2 comprises resistance pressure-dividing network 20, simulation gauge tap 22, high precision collecting chip 23 and CPU 24, resistance pressure-dividing network 20 comprises a ground wire 21, ground wire 21 is connected to the centre of voltage group 11, gathering gradient reduces by half accordingly, avoided because of the too high error of gradient too big, resistance pressure-dividing network 20 comprises a plurality of parallel resistor strings, resistance string comprises two resistance of series connection, the number of voltages of the number of resistance string and voltage group 11 is complementary, the resistance of resistance string is the high-precision metal film resistance, can reduce error, strengthen acquisition precision.
The resistance pressure-dividing network signal output part is connected with simulation gauge tap 22 input ends, simulation gauge tap 22 output terminals are connected with high precision collecting chip 23 input ends, high precision collecting chip 23 output terminals are connected with CPU 24 input ends, CPU 24 is STC12C5A16AD, and CPU 24 output terminals are connected with main frame 4 input ends by RS485 bus mechanism 3.
High precision collecting chip 23 is an ICL7135 high precision collecting chip, and this chip precision height, cost are low, functional good, and the drift of gathering voltage versus temperature is 1 μ V/oC, and the voltage acquisition minimum resolution is 0.1mv, so Acquisition Error is 0 substantially.
Use is revised outside industry control module 10 collection values, eliminates resistance error and device connecting wire error, V1=a * V2, V1 is for treating measured value 2.6V, V2 is the actual acquisition value, a=V1/V2 for example: the actual acquisition value is 2.5, by being multiplied by the coefficient correction to treating measured value.Ground wire 11 is by being changed to bottom originally in the middle of 18 road voltages, gathering gradient reduces by half accordingly, avoided because of the too high error of gradient is too big, the acquisition channel resistance pressure-dividing network adopts 0.1% high-precision metal film resistance, temperature float coefficient be 30ppm (ppm promptly 1,000,000 it ...).12V when gathering the voltage maximum, 6.8K Ω when divider resistance is maximum, dividing potential drop error maximum: the resistance temperature is floated dividing potential drop maximum error V=12 * 30 * 10
-6* 6.8 * 10
3/ 6.8 * 10
3=0.36 * 10
-3Thereby=0.36mv has effectively solved temperature effect dividing potential drop precision makes single-unit voltage acquisition precision reduce problem, because resistance pressure-dividing network resistance＞200K Ω, even single-unit collection voltage 220V occurring also can not destroy measuring the loop, strengthened the anti-interference of system to a certain extent, voltage circuit electric current I max=220/200K Ω=1mA and simulate gauge tap and bear electric current 10mA.
22 from 1 road to 18 tunnel circulations of simulation gauge tap are switched, and also from 1 road to 18 road circle collection switching of ICL7135 high precision collecting chip 23, ICL7135 high precision collecting chip 23 collection magnitudes of voltage convert the digit pulse ripple to and are sent to STC12C5A16AD CPU 24, STC12C5A16AD CPU 24 combines closely by external interrupt and counter and calculates the digit pulse ripple, the pulsating wave number converts voltage to be measured to by special processing, STC12C5A16AD CPU 24 receives by serial ports and interrupts, receive the bus data bag and deposit send buffer in, send buffer is processed processing, examine correct back voltage to be measured is sent to main frame 4, realize and main frame 4 communications by RS485 bus mechanism 3,4 pairs of batteries of main frame are gathered voltage and are diagnosed, the investigation potential safety hazard improves the security of system performance.
Above-described the utility model embodiment does not constitute the qualification to the utility model protection domain.Any modification of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present utility model.
Claims (8)
1. a multichannel is imported the battery logging, comprise the industry control module, battery detecting module and main frame, described industry control module comprises substrate and voltage group, it is characterized in that: described voltage group comprises the multichannel univoltage, described voltage group is connected with the battery detecting module, described battery detecting module comprises resistance pressure-dividing network, the simulation gauge tap, high precision collecting chip and CPU, described resistance pressure-dividing network is connected with described voltage group, described resistance pressure-dividing network signal output part is connected with simulation gauge tap input end, described simulation gauge tap output terminal is connected with high precision collecting chip input end, described high precision collecting chip output is connected with the CPU input end, and described CPU output terminal is connected with the main frame input end by RS485 bus mechanism.
2. according to the described a kind of multichannel input battery logging of claim 1, it is characterized in that described resistance pressure-dividing network comprises a plurality of parallel resistor strings, the number of described resistance string and univoltage way are complementary.
3. according to the described a kind of multichannel input battery logging of claim 2, it is characterized in that described resistance string comprises two resistance of series connection.
4. according to the described a kind of multichannel input battery logging of claim 1, it is characterized in that described resistance pressure-dividing network comprises a ground wire, described ground wire is connected to the centre of voltage group.
5. according to claim 1 or 4 described a kind of multichannel input battery loggings, it is characterized in that described voltage group comprises 18 road univoltages.
6. according to the described a kind of multichannel input battery logging of claim 1, it is characterized in that described high precision collecting chip is an ICL7135 high precision collecting chip.
7. according to the described a kind of multichannel input battery logging of claim 1, it is characterized in that described CPU is STC12C5A16AD CPU.
8. according to claim 1 or 2 or 3 described a kind of multichannel input battery loggings, it is characterized in that the resistance of described resistance string is the high-precision metal film resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200263070U CN202025073U (en) | 2011-01-25 | 2011-01-25 | Battery patrol device with multipath input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200263070U CN202025073U (en) | 2011-01-25 | 2011-01-25 | Battery patrol device with multipath input |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202025073U true CN202025073U (en) | 2011-11-02 |
Family
ID=44850018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200263070U Expired - Fee Related CN202025073U (en) | 2011-01-25 | 2011-01-25 | Battery patrol device with multipath input |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202025073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870283A (en) * | 2017-11-06 | 2018-04-03 | 山东谦恒电子科技有限公司 | BMS wiring testing devices and method |
| CN108321904A (en) * | 2018-03-14 | 2018-07-24 | 江门市地尔汉宇电器股份有限公司 | A kind of automobile batteries protection system |
-
2011
- 2011-01-25 CN CN2011200263070U patent/CN202025073U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870283A (en) * | 2017-11-06 | 2018-04-03 | 山东谦恒电子科技有限公司 | BMS wiring testing devices and method |
| CN108321904A (en) * | 2018-03-14 | 2018-07-24 | 江门市地尔汉宇电器股份有限公司 | A kind of automobile batteries protection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204807623U (en) | Acquisition circuit and contain this acquisition circuit's battery management system | |
| CN104330612B (en) | A kind of resonance overvoltage monitoring system and method | |
| CN103412168B (en) | A kind of high-precision current sampling circuit of intelligent electric meter | |
| CN204008845U (en) | A kind of single-phase electric energy meter metering circuit | |
| CN104299408A (en) | Temperature monitoring device for high-voltage electrical equipment | |
| CN207181589U (en) | It is a kind of to be used for the device being monitored powered to deformation of transformer winding | |
| CN101915897A (en) | Battery routing inspection apparatus and battery voltage acquisition method | |
| CN202025073U (en) | Battery patrol device with multipath input | |
| CN104407209A (en) | Energy efficiency metering detection method of distribution transformer | |
| CN201113493Y (en) | Battery voltage sampling circuit | |
| CN202815120U (en) | Electric energy quality acquisition system in electric energy quality analyzer | |
| CN103293355B (en) | A kind of tension measuring circuit | |
| CN104330621A (en) | Electric appliance energy consumption tester | |
| CN201716103U (en) | Vibration detection device for micro-variation capacitance pole tower | |
| CN201935750U (en) | High potential real-time temperature detector | |
| CN103336199B (en) | Device and method for predicting fault rate of totally-closed tube type busbar | |
| CN103076480B (en) | Tiny signal collecting card | |
| CN206710499U (en) | A kind of current data harvester based on Rogowski coil | |
| CN202794323U (en) | Thunder monitoring system and thunder monitoring terminal | |
| CN201965178U (en) | Parameter tester for pilot frequency line | |
| CN204030653U (en) | There is the charging electric vehicle module of battery detection function | |
| CN201319049Y (en) | High-tension current mutual-inductor transformation ratio tester | |
| CN201184893Y (en) | Apparatus for measuring lighting strike parameter | |
| CN211061633U (en) | Direct current insulation monitoring device based on alternating current and direct current leakage current sensor | |
| CN201965170U (en) | Voltage and current acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20120125 |