CN204807616U - Aluminium -air cell's current detection alarm device - Google Patents
Aluminium -air cell's current detection alarm device Download PDFInfo
- Publication number
- CN204807616U CN204807616U CN201520510281.5U CN201520510281U CN204807616U CN 204807616 U CN204807616 U CN 204807616U CN 201520510281 U CN201520510281 U CN 201520510281U CN 204807616 U CN204807616 U CN 204807616U
- Authority
- CN
- China
- Prior art keywords
- circuit
- aluminium
- air cell
- warning device
- chip microcomputer
- 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses an aluminium -air cell's current detection alarm device. The device includes singlechip, power supply circuit, hall current sensor circuit, voltage follower circuit, filter circuit, reset circuit, crystal oscillator circuit, liquid crystal display circuit, key entry circuit and power supply circuit 0 circuit. Hall current sensor circuit is connected with the voltage follower circuit, voltage follower circuit output is connected with filter circuit, filter circuit, reset circuit, crystal oscillator circuit, liquid crystal display circuit, key entry circuit and acousto -optic warning circuit all are connected with the singlechip. The device can show through the operating current of singlechip to the aluminium -air cell that surveys in real time to can set up different electric current upper limit values through the button, in case the electric current surpasss the upper limit value, just trigger acousto -optic warning immediately, remind people in time to take measures. The device simple structure, the cost is lower, and measurement accuracy is high, easily promotes and popularizes.
Description
Technical field:
The utility model relates to a kind of current detecting warning device, is specifically related to a kind of current detecting warning device of aluminium-air cell.
Background technology:
At present, along with the swift and violent development of various new green power, aluminium-air cell is low owing to having cost, energy density is large, quality is light, structure is simple, pollution-free, reliability is high, the advantages such as the life-span is long, its application is more and more extensive, and its status and importance also highlight day by day, and then to itself reliability of aluminium-air cell, performance, also there is more and stricter requirement the aspect such as cost and security, for monitoring the working condition of aluminium-air cell, just must carry out monitoring to its electric current and report to the police, the serviceable life of parts and damage aluminium-air cell is burnt out to prevent overcurrent.
The method of measurement aluminium-air cell working current general at present adopts small resistor sampling method, namely in current detection circuit, shunt is connected in series, by detecting the pressure drop flow through shunt two ends and produce, then by amplifier, amplification process is carried out to pressure drop, the output voltage be amplified, again the output voltage of amplification is delivered to ADC to change, finally the result of conversion is delivered to MCU and process again.
This electric current detecting method has obvious shortcoming: namely loss and temperature drift comparatively large, and tested electric current and testing circuit are without electrical isolation effect, and reliability and security is poor.
In addition this detection method need use discrete component as devices such as ADC, not only on design cost costly, and design complexity also higher.
Summary of the invention:
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of aluminium-air cell current detecting warning device with high precision, low cost and high reliability.This device can be shown surveyed aluminium-air cell working current in real time by single-chip microcomputer, and the higher limit of electric current can be set according to the situation of different aluminum gas battery by button, once electric current exceedes the higher limit preset, just trigger sound and light alarm immediately.The utility model structure is simple, and reliability is high, easy to operate, is easy to promote.
The technical scheme that the utility model adopts when solving its technical matters is:
A kind of current detecting warning device of aluminium-air cell, comprise single-chip microcomputer, power circuit, Hall current sensor circuit, voltage follower circuit, filtering circuit, reset circuit, crystal oscillating circuit, liquid crystal display circuit, input through keyboard circuit and sound light alarming circuit, described Hall current sensor circuit is connected with voltage follower circuit; Described voltage follower circuit output terminal is connected with filtering circuit; Described filtering circuit, reset circuit, crystal oscillating circuit, liquid crystal display circuit, input through keyboard circuit are connected with single-chip microcomputer respectively with sound light alarming circuit.
As a kind of preferred version of the present utility model, STC12C5A60S2 single-chip microcomputer selected by described single-chip microcomputer.
As a kind of preferred version of the present utility model, described power circuit is made up of voltage stabilizing chip LM2940 and peripheral circuit.
As a kind of preferred version of the present utility model, described Hall current sensor circuit is connected and composed by Hall current sensor chip ACS712-30A and peripheral circuit.
As a kind of preferred version of the present utility model, described voltage follower circuit circuit is connected and composed by operational amplifier chip SGM321 and peripheral circuit.
As a kind of preferred version of the present utility model, described liquid crystal display circuit is connected and composed by 1602 liquid crystal display and peripheral circuit.
As a kind of preferred version of the present utility model, described sound light alarming circuit comprises light emitting diode and passive hummer, and this hummer is connected with singlechip controller through triode.
As a kind of preferred version of the present utility model, described input through keyboard circuit includes three Independent keys, represents function selecting key, electric current+key and electric current-key respectively.
The utility model beneficial effect is,
1) the utility model good in anti-interference performance, current detection accuracy is high, can work in rugged environment.
2) the STC12C5A single-chip microcomputer fast operation that the utility model is used, can high-speed, high precision real-time testing and alarm is carried out to electric current, and alarm current higher limit arranges adjustable.
3) the utility model structure is simple, and required device is all common to be easy to get, and procurement cycle is short, and cost of manufacture is low, and institute takes up space very little, is easy to I&M.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is single-chip microcomputer of the present utility model, crystal oscillating circuit and reset circuit schematic diagram.
Fig. 3 is power circuit principle figure of the present utility model.
Fig. 4 is Hall element circuit of the present utility model, voltage follower circuit and filtering circuit schematic diagram
Fig. 5 is liquid crystal display circuit schematic diagram of the present utility model
Fig. 6 is input through keyboard circuit theory diagrams of the present utility model
Fig. 7 is sound light alarming circuit schematic diagram of the present utility model
Description of reference numerals: 1, single-chip microcomputer, 2, power circuit, 3, Hall element circuit, 4, voltage follower circuit, 5, filtering circuit, 6, reset circuit, 7, crystal oscillating circuit, 8, liquid crystal display circuit, 9, input through keyboard circuit, 10, sound light alarming circuit.
Embodiment:
Be further described this reality is novel below in conjunction with the drawings and specific embodiments, but embodiment of the present utility model is not limited thereto.
See Fig. 1, a kind of current detecting warning device of aluminium-air cell, comprise single-chip microcomputer 1, power circuit 2, Hall current sensor circuit 3, voltage follower circuit 4, filtering circuit 5, reset circuit 6, crystal oscillating circuit 7, liquid crystal display circuit 8, input through keyboard circuit 9 and sound light alarming circuit 10, described Hall current sensor circuit 3 is connected with described voltage follower circuit 4; Described voltage follower circuit 4 output terminal is connected with described filtering circuit 5; Described filtering circuit 5, reset circuit 6, crystal oscillating circuit 7, liquid crystal display circuit 8, input through keyboard circuit 9 are connected with single-chip microcomputer 1 respectively with sound light alarming circuit 10.
Fig. 2 is single-chip microcomputer, crystal oscillating circuit and reset circuit schematic diagram.8 single-chip microcomputer STC12C5A60S2 that single-chip microcomputer selects STC Corporation to produce.The inner integrated 8 road 10-bit high speed A/D change-over circuits of STC12C5A60S2 single-chip microcomputer are a kind of high-performance, low-power consumption, superpower jamproof control device, effectively can improve the programmability of system and reduce the power consumption of system, having good result of use.Single-chip microcomputer STC12C5A60S2 needs external crystal oscillating circuit and reset circuit normally to work.15th pin (XTAL1) of single-chip microcomputer, the 14th pin (XTAL2) external crystal oscillating circuit, sign-changing amplifier in crystal oscillating circuit and single-chip microcomputer forms an oscillator, be mainly single-chip microcomputer and fixing orderly clock control signal is provided, crystal oscillating circuit is made up of by 30PF ceramic condenser 11.0592MHZ quartz oscillator and two electric capacity, plays frequency trim effect.Reset circuit is connected with the 4th pin (RST) of single-chip microcomputer, after pressing the button in reset circuit, RST is held and produces high level, as long as can ensure that reset signal high level lasting time is greater than the hand-reset that 2 machine cycles just can realize single-chip microcomputer.
Fig. 3 is power circuit principle figure of the present utility model.Described power circuit adopts 4 joint 1.5V dry cells as power supply, in the present embodiment after power switch S2 is closed, the 6V power supply of battery delivers to the input end (IN) of three end collection voltage stabilizer LM2940 after electrochemical capacitor C5 and ceramic disc capacitor C6 filtering, + 5V the DC voltage of output terminal (OUT) stable output after ceramic disc capacitor C3 and electrochemical capacitor C4 filtering of LM2940, for single-chip microcomputer and other parts circuit provide power supply.Also be connected to a current-limiting resistance R6 and LED DS2 at the output terminal (OUT) of LM2940, whether the light on and off of LED are used to indicate system and normally work on power simultaneously.
Fig. 4 is Hall element circuit of the present utility model, voltage follower circuit and filtering circuit schematic diagram.The ACS712-30A current sensor that Hall current sensor selects Allegro company to produce, this device is built-in with accurate low biased linear hall sensor circuit, has low noise, highly sensitive, response time fast and insulation voltage high.This sensor measurement range of current is-30A ~ 30A, output voltage range is 0.5 ~ 4.5V, the 1st of ACS712 chip, the input end of 2 pins (IP+) external surveyed current signal, 3rd, 4 pins (IP-) connect the output terminal of surveyed current signal, 5th pin (GND) ground connection of ACS712 chip, ground connection again after the ceramic disc capacitor C12 of the external 1nf of the 6th pin (FILTER), this electric capacity plays the effect reducing output noise, 7th pin output terminal (VIOUT) of ACS712 chip outputs to voltage follower circuit through resistance R11, the output terminal of the one termination R11 of electric capacity C13, another termination GND, R11 and C13 forms RC low-pass filter, can be good at the effect playing filtering ripple.8th pin (VCC) of ACS712 chip connects the direct current of+5V.Hall current sensor circuit Main Function is that surveyed current signal is converted to corresponding voltage signal.
The voltage follower circuit SGM321 chip of selecting SGMICRO company to produce in the present embodiment, SGM321 is a kind of low-power consumption, high-accuracy general amplifier, has extremely strong restraint speckle ability.SGM321 chip has 5 pins, comprises positive and negative input pin+IN and-IN, a power pins+Vs and-Vs and output pin OUT.See Fig. 4,1st pin (+IN) of SGM chip connects with resistance R11 output terminal, 2nd pin (-Vs) ground connection, 3rd pin (-IN) connects with the 4th pin (OUT), and the 5th pin (+Vs) connects+5V power supply and connects a ceramic disc capacitor again to ground.SGM321 plays the effect of voltage follow here.Output voltage signal after voltage follower circuit is followed is input in filtering circuit.
In the present embodiment, the low-pass filter circuit of filtering circuit for being made up of resistance R10 and electric capacity C11, see Fig. 4,4th pin (OUT) of SGM chip is connected with the input end of resistance R10, the output terminal of R10 is connected with the 41st pin ADC1/P1.1 of single-chip microcomputer, one end of electric capacity C11 is connected with the output terminal of R10, in addition one end ground connection.Filtering circuit mainly plays a part further filtering ripple.
Liquid crystal display circuit adopts 1602LCD display chip, the electric current high alarm setting value that STC12C5A60S2 single-chip microcomputer is shown current surveyed current value by parallel data transmission mode control 1602LCD and pre-set.Liquid crystal display circuit schematic diagram as shown in Figure 5, wherein the data pin DB0 ~ DB7 (7 pins are to 14 pins) of 1602LCD connects with the P2 mouth of single-chip microcomputer, 1st pin (VSS) ground connection of 1602LCD, 2nd pin (VCC) connects+5V power supply, 3rd pin (VEE) connects slide rheostat, 11st pin (P3.5) of the 5th pin (RS) street single-chip microcomputer, 6th pin (R/W) receives the 12nd pin (P3.6) of single-chip microcomputer, and the 7th pin (E) receives the 13rd pin (P3.7) of single-chip microcomputer.
Fig. 6 is input through keyboard circuit theory diagrams of the present utility model, input through keyboard circuit is by three button S1, S3, S4 adds pull-up resistor R2, R5, R7 is formed, button S1 one end is connected to ground, the 42nd pin (P1.2) that the other end is connected to single-chip microcomputer goes up also contact resistance R2 one end simultaneously, the resistance R2 other end is connected on+5V power supply, button S3 one end is connected to ground, the 43rd pin (P1.3) that the other end is connected to single-chip microcomputer goes up also contact resistance R5 one end simultaneously, the resistance R5 other end is connected on+5V power supply, button S4 one end is connected to ground, the 44th pin (P1.4) that the other end is connected to single-chip microcomputer goes up also contact resistance R7 one end simultaneously, the resistance R7 other end is connected on+5V power supply.S1, S3, the effect of S4 tri-buttons is function selecting key respectively, electric current+key, electric current-key, the course of work of button and liquid crystal display is as follows: when normally working, liquid crystal display is in real-time display mode, now, electric current+key S3 and electric current-key S4 is invalid, when function selecting key S1 is by time next time, liquid crystal display enters electric current high alarm setting display mode, now, often press primary current+key S3, high alarm setting value up will add 1A, often press primary current-key S4, high alarm setting value just down subtracts 1A, after setting high alarm setting value, again by a function selecting key S1, then liquid crystal display gets back to real-time display mode.By changing electric current high alarm setting value easily the operation of button, there is very strong flexibility of operation.
Fig. 7 is sound light alarming circuit schematic diagram of the present utility model, sound light alarming circuit comprises light emitting diode and passive hummer, this hummer is connected with single-chip microcomputer through 8050 triodes, one termination+5V power supply of passive hummer, an other end is received on the collector of NPN triode 8050, one end of resistance R4 is connected on the ground level of triode 8050, the other end to be connected in triode emission level then ground connection, one end of resistance R3 is connected on the 1st pin (P1.5) of single-chip microcomputer, and the other end is connected in the base stage of triode 8050.The positive pole of light emitting diode DS1 is received on+5V power supply, negative pole receives one end of resistance R8, the other end of resistance R8 is received on the 10th pin (P3.4) of single-chip microcomputer, when detecting that surveyed current value exceedes the high alarm setting value of setting, Single-chip Controlling sound light alarming circuit works, the LED DS1 flicker that buzzer warning is simultaneously red.
When utility model works, first the setting to electric current high alarm setting value is realized by key circuit, when Hall element detects electric current, measured current signal is converted to voltage signal by Hall current sensor, voltage follower circuit carries out signal transacting to this voltage, the filter action of the circuit after filtering again of the voltage signal after process, eliminates interference.The voltage signal eliminated after interference is input in single-chip microcomputer, the voltage signal of input is converted to digital signal through the A/D converter carried by single-chip microcomputer, and digital signal is carried out processing obtain current surveyed current value, then current surveyed current value shows at LCD liquid crystal by single-chip microcomputer together with electric current high alarm setting value set in advance, when surveyed electric current reaches electric current high alarm setting value, single-chip microcomputer outputs signal in sound light alarming circuit, warning circuit is reported to the police, hummer starts to report to the police, warning LED is constantly glimmered, remind operator, to avoid the serviceable life burning out parts and damage aluminium air power supply.
The utility model structure is simple, easy to use, with low cost, and Installation and Debugging are easy, can arrange electric current high alarm setting value by button, what the electric current surveyed and set high alarm setting value can be real-time is presented on liquid crystal display, when monitored electric current exceedes high alarm setting value, system can be sent out and carry out sound and light alarm, reminds operator.The utility model antijamming capability is strong, and measuring accuracy is high, and reliability is strong, easily promotes.
The above; be only preferred embodiment of the present utility model, not any pro forma restriction done to the utility model, every any simple modification above embodiment done according to technical spirit of the present utility model; equivalent variations, all falls within protection domain of the present utility model.
Claims (8)
1. an aluminium-air cell current detecting warning device, it is characterized in that, comprise single-chip microcomputer (1), power circuit (2) Hall current sensor circuit (3), voltage follower circuit (4), filtering circuit (5), reset circuit (6), crystal oscillating circuit (7), liquid crystal display circuit (8), input through keyboard circuit (9) and sound light alarming circuit (10), described Hall current sensor circuit (3) is connected with described voltage follower circuit (4); Described voltage follower circuit (4) output terminal is connected with described filtering circuit (5); Described filtering circuit (5), reset circuit (6), crystal oscillating circuit (7), liquid crystal display circuit (8), input through keyboard circuit (9) are connected with single-chip microcomputer (1) respectively with sound light alarming circuit (10).
2. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: STC12C5A60S2 single-chip microcomputer selected by described single-chip microcomputer (1).
3. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: described power circuit is made up of voltage stabilizing chip LM2940 and peripheral circuit.
4. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: described Hall current sensor circuit (3) is connected and composed by Hall current sensor chip ACS712-30A and peripheral circuit.
5. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: described voltage follower circuit circuit (4) is connected and composed by operational amplifier chip SGM321 and peripheral circuit.
6. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: described liquid crystal display circuit (8) is connected and composed by 1602 liquid crystal display and peripheral circuit.
7. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: described sound light alarming circuit (10) comprises light emitting diode and passive hummer, and this hummer is connected with singlechip controller through triode.
8. the current detecting warning device of aluminium-air cell according to claim 1, is characterized in that: described input through keyboard circuit includes three Independent keys, represents function selecting key, electric current+key and electric current-key respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510281.5U CN204807616U (en) | 2015-07-07 | 2015-07-07 | Aluminium -air cell's current detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510281.5U CN204807616U (en) | 2015-07-07 | 2015-07-07 | Aluminium -air cell's current detection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204807616U true CN204807616U (en) | 2015-11-25 |
Family
ID=54592420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520510281.5U Expired - Fee Related CN204807616U (en) | 2015-07-07 | 2015-07-07 | Aluminium -air cell's current detection alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204807616U (en) |
-
2015
- 2015-07-07 CN CN201520510281.5U patent/CN204807616U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202230051U (en) | Handheld formaldehyde detector | |
| CN103592348A (en) | Portable quick indoor air quality detector | |
| CN201417180Y (en) | Temperature and humidity detection alarm | |
| CN202256247U (en) | Multifunction handheld harmful gas detector | |
| CN203572794U (en) | Portable rapid indoor air quality detector | |
| CN102384360B (en) | Mine lamp with functions of displaying carbon monoxide concentration in digitized way, detecting carbon monoxide concentration and alarming | |
| CN202102046U (en) | Harmonic monitor capable of displaying harmonic flow direction | |
| CN206906342U (en) | Air pollution surveillance system based on ZigBee-network | |
| CN204807616U (en) | Aluminium -air cell's current detection alarm device | |
| CN206470378U (en) | Power of computer room monitoring device | |
| CN204256049U (en) | A kind of NEW TYPE OF COMPOSITE function earth resistance tester | |
| CN104459263A (en) | Pointer ampere meter capable of automatically shifting gears | |
| CN105606765A (en) | Formaldehyde tester | |
| CN101950951A (en) | Protection device for multiple monitoring of motor faults | |
| CN202305458U (en) | Air quality detecting device | |
| CN204903445U (en) | Hydrogen concentration detector | |
| CN204439695U (en) | A kind of Intelligent digital multimeter of voice broadcast | |
| CN204314359U (en) | A kind of pointer reometer of the gear that automatically switches | |
| CN203149780U (en) | Remote monitoring alarm system for air quality | |
| CN207366649U (en) | A kind of wireless refrigerator performance detection data harvester | |
| CN209182410U (en) | A kind of test circuit detecting machine core audio function | |
| CN202994706U (en) | Portable formaldehyde detector | |
| CN202220626U (en) | Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor | |
| CN203455391U (en) | Logic pulse signal detection device | |
| CN201654144U (en) | Earth leakage protective device tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |