CN202994298U - Automatic working-temperature detecting and warning device for rectifier - Google Patents
Automatic working-temperature detecting and warning device for rectifier Download PDFInfo
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- CN202994298U CN202994298U CN201220108220.2U CN201220108220U CN202994298U CN 202994298 U CN202994298 U CN 202994298U CN 201220108220 U CN201220108220 U CN 201220108220U CN 202994298 U CN202994298 U CN 202994298U
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Abstract
Provided is an automatic working-temperature detecting and warning device for a rectifier. As shown in representative drawings, working temperature signals of the rectifier are acquired by a temperature sensor, and a processing circuit, a man-machine conversation circuit, and a power circuit and so on are electrically connected. The automatic working-temperature detecting and warning device can automatically monitor the working temperature of the rectifier and allows check of the working temperature of an internal module of the rectifier, historical data and the trend. A warning value can be set and is generally a little smaller than an upper limit value for temperature warning failure of the rectifier, so that a monitoring system gives an alarm in advance before the rectifier has to stop operation due to the temperature being too high. In this way, abundant time is guaranteed to turn off other devices of a production line, thereby reducing the production loss.
Description
Technical field
The utility model relates to a kind ofly can detect rectifier working temperature device automatically in real time, especially can play the device of alarm function in advance.
Background technology
Present many rectifiers provide necessary working current for copper facing, zincincation, and when its work, what adopt due to self is that temperature switch is controlled, and can't see in real time working temperature and the historical data of its inner rectification module, more there is no the pre-alarm function.And reach and prescribe a time limit when rectifier detects self temperature, temperature switch can make rectifier self-protection, quits work immediately.At this moment, owing to being catastrophic discontinuityfailure, the working current in copper plating groove, galvanizing bath will be varied down to zero gradually, and other equipment of production line also can continue to move a period of time, can produce a large amount of waste products during this period, cause a large amount of raw-material wastes, the rising of cost of products.
Summary of the invention
For rectifier in the market (for example: Bei Feier board rectifier) do not have the real-time online automatic temperature-adjusting to detect and warning system, this paper has designed a rectifier temperature automatic detection alarm device, has following function:
A kind of working temperature automatic detection alarm device of rectifier, gather rectifier working temperature signal by temperature sensor, and treatment circuit, man-machine conversation circuit, power circuit are electrically connected, it is characterized in that processing unit can automatic real-time monitoring the working temperature of rectifier, and have store historical data and temperature warning function in advance.
Can realize detection and pre-alarm to rectifier operational module temperature.
Have at most 16 the road and sample simultaneously, can detect two rectifiers totally 16 rectification modules.
Have compensating circuit, can test remote rectifier operational module.
The multi-functional interface, key interface and the clock that have liquid crystal display, time and the frequency information that can check real time temperature data, continuous two days maximum temperature data and historical temperature data curve, warning.
Relay indicating light is the normal/two kinds of patterns of reporting to the police.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the process flow diagram of system program.
Embodiment
In Fig. 1, native system adopts the LM35 temperature sensor to gather the rectifier working temperature, by shielded cable, can access simultaneously 16 road temperature acquisition operating circuits at most, if rectifier contains 8 operational modules, so just can detect simultaneously 2 rectifiers.After the signal filtering amplifications that after temperature signal collection, the input service passage is correlated with etc. were processed, input processing unit carried out signal sampling.Processing unit judges to the information of sampling whether it is effective, then outputs to display panels, and the information of completing in other functions is replenished.During not higher than setting value, the system works pilot lamp is normal signal when temperature value; During higher than setting value, relay indicating light becomes alerting signal when temperature value, and the prompting personnel notice that reorganizer is about to quit work, and carrying out in advance relevant the preparation.By internal compensation, the processing unit device can extend 10 meters left and right to the shielded cable length of temperature sensor, and this sample system can be tested the target of longer distance.
1. temperature sensor and treatment circuit
What adopt in system is the LM35 temperature sensor of being produced by intercontinental semiconductor company, and its output voltage and Celsius thermometric scale are linear, is output as 0V at 0 o'clock, 1 ℃ of every rising, and output voltage increases 10mV.At normal temperatures, LM35 does not need extra calibration process can reach ± accuracy rate of 1/4 ℃.Its power supply supplying mode has two kinds of single supply and negative and positive dual powers, and the powering mode of negative and positive dual power can provide the measurement of negative temperature; The assigned work temperature range of temperature sensor is at-55 ℃ to+150 ℃.
LM35 is input to signal conditioning circuit by shielded cable with signal.Owing to being provided with correlative compensation at system hardware and software, can extend shielded cable, the target that test is long.
Signal conditioning circuit mainly comprises two parts, and the one, input channel single order RC filtering circuit, the 2nd, amplifying circuit.The RC filtering circuit is the target signal filter burr signal to gathering mainly, improves the precision of signal sampling value.Amplifying circuit is the multiple that the signal value that will gather is amplified to setting, so also can play the effect of certain raising accuracy value.
2. controlled processing unit and interface unit circuit
Controlled processing unit is the control core of whole system, and what native system adopted is the C8051F021 singlechip chip of dragon company of U.S. Xinhua.This chip is with two AD Sampling Interfaces, and each mouth has 8 tunnel sampling input channels.Also has simultaneously the UART communication interface, the parts such as I/O interface, the need of work of very suitable native system.The temperature of each module of controlled processing unit each minute once sampling rectifier, after judge, valid data are preserved, when reaching ten minutes, ten secondary data of sampling are averaged, this value is sent to the LCD screen interface shows, if temperature surpasses setting value, the warning of glimmering of alarm pilot lamp, LCD screen records time of fire alarming and information.Controlled processing unit is to the sample every day data of 144 points of each rectifier module.
Liquid crystal display circuit is arranged, the relay indicating light circuit in main interface unit.The liquid crystal display circuit major function is as follows: the master menu display interface, temperature test display interface, temperature curve interface, historical data interface, alarm logging interface, in time test interface and system arrange the interface.Interface of main menu is used for selecting above 6 interfaces; The temperature test interface is used for showing each the rectifier module temperature that detects, refreshed once in every ten minutes; What the temperature curve display interface showed is the temperature value that detected in a day, totally 144 points; The historical data interface is used for showing the temperature mxm. of the previous day on the same day, front second day; The alarm logging interface is used for recording the details of temperature alarming; In time test interface is when facilitating debugging, immediately probe temperature; Final system arranges the interface and is used for the rectifier temperature acquisition system is set, and the quantity of left rectifier and right rectifier detector switch, detection rectifier can be set, set temperature alarming value, and set of time and demonstration.
3. auxiliary circuit unit
Comprise clock circuit in auxiliary circuit, reset circuit, power circuit.Clock circuit provides temporal information for whole work system.The reset circuit work system that can reset when needed.Power circuit is used for providing power supply to system, comprises processing unit, temperature sensor, LCD Panel, relay indicating light.
4. program flow diagram
Fig. 2 is the flow chart that system controls, and at first system is initialization, then entered function initialization, and the opens interrupters function then enters button scan round program, in the time of full 1 minute, the operational temperature information of rectifier is carried out data sampling when the timer timing; After sampling ten times, ask for a mean value, this numerical value is exactly the rectifier average working temperature value of in 10 minutes in the past.Temperature alarming value and this value are compared, if exceed alarming value, system sends warning, on the contrary the indication normal operation.System also can send to man-machine dialog interface with this information, and stores in historical data.After the system works one day enough, refresh the mxm. of rectifier temperature on the same day.
Claims (6)
1. the working temperature automatic detection alarm device of a rectifier, gather rectifier working temperature signal by temperature sensor, and treatment circuit, man-machine conversation circuit, power circuit are electrically connected, it is characterized in that processing unit can automatic real-time monitoring the working temperature of rectifier, and have store historical data and temperature warning function in advance.
2. detection alarm device according to claim 1, is characterized in that: can realize detection and pre-alarm to rectifier operational module temperature.
3. detection alarm device according to claim 1, is characterized in that: have at most 16 the road and sample simultaneously, can detect two rectifiers, 16 rectification modules totally.
4. detection alarm device according to claim 1, is characterized in that: have compensating circuit, can test remote rectifier operational module.
5. detection alarm device according to claim 1, it is characterized in that: have multi-functional interface, key interface and the clock of liquid crystal display, can check time and the frequency information of real time temperature data, continuous two days maximum temperature data and historical temperature data curve, warning.
6. detection alarm device according to claim 1 is characterized in that: relay indicating light is the normal/two kinds of patterns of reporting to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220108220.2U CN202994298U (en) | 2012-03-21 | 2012-03-21 | Automatic working-temperature detecting and warning device for rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220108220.2U CN202994298U (en) | 2012-03-21 | 2012-03-21 | Automatic working-temperature detecting and warning device for rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994298U true CN202994298U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220108220.2U Expired - Lifetime CN202994298U (en) | 2012-03-21 | 2012-03-21 | Automatic working-temperature detecting and warning device for rectifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973492A (en) * | 2015-12-29 | 2016-09-28 | 中广核研究院有限公司北京分公司 | Digital exhaust temperature automatic cyclic detection device |
| CN112526382A (en) * | 2020-11-18 | 2021-03-19 | 上海置信电气非晶有限公司 | Testing device for rectifying module of pole-mounted circuit breaker |
-
2012
- 2012-03-21 CN CN201220108220.2U patent/CN202994298U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973492A (en) * | 2015-12-29 | 2016-09-28 | 中广核研究院有限公司北京分公司 | Digital exhaust temperature automatic cyclic detection device |
| CN112526382A (en) * | 2020-11-18 | 2021-03-19 | 上海置信电气非晶有限公司 | Testing device for rectifying module of pole-mounted circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |