CN203479420U - Transformer multipath temperature monitoring system - Google Patents
Transformer multipath temperature monitoring system Download PDFInfo
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- CN203479420U CN203479420U CN201320507608.4U CN201320507608U CN203479420U CN 203479420 U CN203479420 U CN 203479420U CN 201320507608 U CN201320507608 U CN 201320507608U CN 203479420 U CN203479420 U CN 203479420U
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- transformer
- switch array
- analog switch
- analog
- monitoring system
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Abstract
The utility model discloses a transformer multipath temperature monitoring system, comprises a transformer, a plurality of thermal resistors disposed on the periphery of the transformer. Each thermal resistor is connected with an analog switch array. The analog switch array is connected with a singlechip through a balanced bridge, an instrumentation amplifier, and an analog-digital converter. A control output end of the singlechip is also connected with the analog-digital converter and the analog switch array. The transformer multipath temperature monitoring system can realize multipath temperature measurement. The temperature monitoring system is based on the analog switch array, a detection signal conversion circuit is used to realize conversion of multipath signals, and a monitoring host is used to monitor in real time. Under the condition of ensuring necessary detection precision, system cost is reduced.
Description
Technical field
The utility model relates to transformer multi way temperature supervisory system.
Background technology
Temperature parameter is one of production process parameters the most frequently used in commercial production, in most systems for the measurement point of temperature more than one, for multipoint temperature measuring main employing is at present first sensor signal to be changed, by sensor detection signal for example the variation of resistance value be transformed to the current signal of 4～20 mA or the voltage signal of 0～5 V, then monitoring point shows or is transferred to remote monitoring chamber at the scene.This need to, for the additional signal conversion of each check point and treatment circuit, strengthen system cost to a great extent.
Utility model content
The purpose of this utility model is to provide a kind of transformer multi way temperature supervisory system, and it can realize multichannel temperature measurement.
For achieving the above object, the technical solution of the utility model is a kind of transformer multi way temperature supervisory system of design, comprise transformer, transformer periphery is provided with a plurality of thermal resistances, each thermal resistance is connected to analog switch array, analog switch array is connected with single-chip microcomputer by balanced bridge, instrument amplifier, analog to digital converter successively, and the control output end of single-chip microcomputer is also connected to respectively analog to digital converter and analog switch array.
Preferably, described single-chip microcomputer is also connected with RS485 interface module.
Preferably, described RS485 interface module is also connected with monitoring host computer.
Preferably, described thermal resistance is uniform in transformer periphery.
Preferably, described thermal resistance is circumferentially uniform in transformer periphery.
Advantage of the present utility model and beneficial effect are: a kind of transformer multi way temperature supervisory system is provided, and it can realize multichannel temperature measurement.
Single-chip microcomputer is connected to monitoring host computer by RS485 interface module.
Thermal resistance, as survey sensor, adopts balanced bridge that the variation of resistance value is converted to voltage signal.In order to realize the data acquisition of Yong Yi road signaling conversion circuit to multiple signals, thermal resistance is connected into balanced bridge after by switch matrix again, this is also the key that realizes multi way temperature signals collecting.
Instrument amplifier, has higher common-mode rejection ratio, high-gain, low noise, low price.
The utility model is the temperature monitoring system based on analog switch array, with a detection signal change-over circuit, realized multiple signals have been changed, and monitor in real time with host computer (monitoring host computer), in the situation that guaranteeing necessary accuracy of detection, reduced system cost.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, the concrete technical scheme of implementing of the utility model is:
A kind of transformer multi way temperature supervisory system, comprise transformer 1, transformer 1 periphery is provided with a plurality of thermal resistances 2, each thermal resistance 2 is connected to analog switch array 3, analog switch array 3 is connected with single-chip microcomputer 7 by balanced bridge 4, instrument amplifier 5, analog to digital converter 6 successively, and the control output end of single-chip microcomputer 7 is also connected to respectively analog to digital converter 6 and analog switch array 3.
Described single-chip microcomputer 7 is also connected with RS485 interface module 8.
Described RS485 interface module 8 is also connected with monitoring host computer 9.
Described thermal resistance 2 is circumferentially uniform in transformer 1 periphery.
A kind of transformer multi way temperature supervisory system, comprise transformer 1, transformer 1 periphery is provided with a plurality of thermal resistances 2, each thermal resistance 2 is connected to analog switch array 3, analog switch array 3 is connected with single-chip microcomputer 7 by balanced bridge 4, instrument amplifier 5, analog to digital converter 6 successively, and the control output end of single-chip microcomputer 7 is also connected to respectively analog to digital converter 6 and analog switch array 3.
Described single-chip microcomputer 7 is also connected with RS485 interface module 8.
Described RS485 interface module 8 is also connected with monitoring host computer 9.
Described thermal resistance 2 is circumferentially uniform in transformer 1 periphery.
The transformer multi way temperature supervisory system that the utility model provides, can realize multichannel temperature measurement.
Single-chip microcomputer is connected to monitoring host computer by RS485 interface module.
Thermal resistance, as survey sensor, adopts balanced bridge that the variation of resistance value is converted to voltage signal.In order to realize the data acquisition of Yong Yi road signaling conversion circuit to multiple signals, thermal resistance is connected into balanced bridge after by switch matrix again, this is also the key that realizes multi way temperature signals collecting.
Instrument amplifier, has higher common-mode rejection ratio, high-gain, low noise, low price.
The utility model is the temperature monitoring system based on analog switch array, with a detection signal change-over circuit, realized multiple signals have been changed, and monitor in real time with host computer (monitoring host computer), in the situation that guaranteeing necessary accuracy of detection, reduced system cost.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. transformer multi way temperature supervisory system, it is characterized in that, comprise transformer, transformer periphery is provided with a plurality of thermal resistances, each thermal resistance is connected to analog switch array, analog switch array is connected with single-chip microcomputer by balanced bridge, instrument amplifier, analog to digital converter successively, and the control output end of single-chip microcomputer is also connected to respectively analog to digital converter and analog switch array.
2. transformer multi way temperature supervisory system according to claim 1, is characterized in that, described single-chip microcomputer is also connected with RS485 interface module.
3. transformer multi way temperature supervisory system according to claim 2, is characterized in that, described RS485 interface module is also connected with monitoring host computer.
4. transformer multi way temperature supervisory system according to claim 1, is characterized in that, described thermal resistance is uniform in transformer periphery.
5. transformer multi way temperature supervisory system according to claim 1, is characterized in that, described thermal resistance is circumferentially uniform in transformer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507608.4U CN203479420U (en) | 2013-08-20 | 2013-08-20 | Transformer multipath temperature monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507608.4U CN203479420U (en) | 2013-08-20 | 2013-08-20 | Transformer multipath temperature monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479420U true CN203479420U (en) | 2014-03-12 |
Family
ID=50227733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320507608.4U Expired - Fee Related CN203479420U (en) | 2013-08-20 | 2013-08-20 | Transformer multipath temperature monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457259A (en) * | 2014-11-17 | 2015-03-25 | 四川理工学院 | Computer integrated management system and method for magnetic shoe sintering furnace group |
-
2013
- 2013-08-20 CN CN201320507608.4U patent/CN203479420U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457259A (en) * | 2014-11-17 | 2015-03-25 | 四川理工学院 | Computer integrated management system and method for magnetic shoe sintering furnace group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |