CN205426376U - Long -range wireless programme -controlled intelligent temperature transmitter - Google Patents
Long -range wireless programme -controlled intelligent temperature transmitter Download PDFInfo
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- CN205426376U CN205426376U CN201521064668.9U CN201521064668U CN205426376U CN 205426376 U CN205426376 U CN 205426376U CN 201521064668 U CN201521064668 U CN 201521064668U CN 205426376 U CN205426376 U CN 205426376U
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Abstract
The utility model discloses a long -range wireless programme -controlled intelligent temperature transmitter, include: a signal acquisition equipment, signal acquisition equipment is used for gathering temperature signal, and will temperature signal converts data signal into and carries to microprocessor, a microprocessor used for judging and reading, microprocessor be used for with data signal converts temperature data, current data and voltage signal into, and will temperature data reaches current data conveys the equipment to wireless communication, a wireless communication equipment, wireless communication equipment be used for with temperature data reaches current data carries out wireless transmission and gives the main control computer, a power, the power is used for providing the electric energy. The utility model provides a pair of long -range wireless programme -controlled intelligent temperature transmitter, whole circuit design is succinct, the precision is higher, stability is good, has solved the problem and the loaded down with trivial details problem of range adjustment of changer and main control computer wireless communication distance.
Description
Technical field
The present invention relates to industrial temperature field of measuring technique, particularly relate to a kind of long distance wireless program-controlled intelligent temperature transmitter.
Background technology
In the industrial production, temperature survey has critically important status, Industrial Wireless is industry future development pith simultaneously, is to reduce industrial control system cost, the revolutionary technology of raising industrial control system range of application, is also industrial automation product new growth point.So wireless technology being combined with Intellectual Thermal Transmitter, must there be certain practical value and application prospect.
Currently also there is the wireless temperature transmitter of low-power consumption LAN protocol (hereinafter referred to as ZigBee) technology based on EEE802.15.4 standard, but ZigBee technology transmission range is near, little applicable data long-distance transmissions.The range regulation of the most conventional Intellectual Thermal Transmitter uses the resistance changed in hardware circuit, such complex operation, brings inconvenience to debugging.
Summary of the invention
The embodiment of the present application is by providing a kind of long distance wireless program-controlled intelligent temperature transmitter, and solving that industrial temperature in prior art measures can not the problem of remote-wireless communication.
The embodiment of the present application provides a kind of long distance wireless program-controlled intelligent temperature transmitter, including:
One signal collecting device, described signal collecting device is for being acquired temperature signal, and described temperature signal is converted to digital signal is delivered to microprocessor；
One microprocessor, described microprocessor for being converted to temperature data, current data and voltage signal by described digital signal, and described temperature data and described current data are sent to wireless telecommunications system；
One wireless telecommunications system, described wireless telecommunications system is for carrying out radioing to main control computer by described temperature data and described current data；
One power supply, described power supply is for providing electric energy for described signal collecting device, described microprocessor and described wireless telecommunications system.
Further, described signal collecting device includes:
One thermal resistance, described thermal resistance is for detecting temperature signal, and described temperature signal is delivered to signal regulating device；
One signal regulating device, described signal regulating device is for being converted into voltage signal by the described temperature signal received, and described voltage signal is delivered to analog-digital converter；
One analog-digital converter, described analog-digital converter is for being converted into digital signal by the described voltage signal received, and described digital signal is delivered to described microprocessor.
Further, described signal regulating device includes:
One wheatstone bridge, described wheatstone bridge is for being converted into voltage signal by the described temperature signal received, and described voltage signal is delivered to programmable amplifier；
One programmable amplifier, described programmable amplifier is after be amplified the described voltage signal received, the more described voltage signal after amplifying is delivered to described analog-digital converter.
Further, described microprocessor includes:
One arithmetical unit, described arithmetical unit obtains described temperature data and described current data for the voltage signal received carries out computing；
One digital analog converter, described digital analog converter is for being converted into voltage data by the described voltage signal received.
Further, described wireless telecommunications system includes:
One 3G communication module, described 3G communication module is for receiving the described temperature data of described microprocessor output and described current data, and by described temperature data and described current data long range radio transmissions to main control computer.
Further, described long distance wireless program-controlled intelligent temperature transmitter, also include:
One liquid crystal display, described liquid crystal display shows the described temperature data of described microprocessor output and described current data in real time.
Further, described long distance wireless program-controlled intelligent temperature transmitter, also include:
One power pack, described power pack is for being converted to current signal by the described voltage signal that microprocessor exports.
Further, described thermal resistance uses precision to be the platinum resistance thermometer sensor, of 0.1.
Further, described thermal resistance carries out the medium of temperature detection and includes liquid, gas and steam.
Further, described current data is equal with the current value in described current signal.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage: owing to have employed wireless telecommunications system, utilize wireless communication networks, efficiently solve Intellectual Thermal Transmitter in prior art cannot the problem of long distance wireless real-time online transmission data, and then achieve Intellectual Thermal Transmitter and main control computer can be with long-distance radio communication.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present application one medium-long range wireless program-controlled Intellectual Thermal Transmitter；
Fig. 2 is the structure chart of the embodiment of the present application two medium-long range wireless program-controlled Intellectual Thermal Transmitter；
Fig. 3 is the resistance temperature measurement circuit figure in this utility model embodiment three；
Fig. 4 is the signal conditioning circuit figure in this utility model embodiment three；
Fig. 5 is the analog to digital conversion circuit figure in this utility model embodiment three；
Fig. 6 is the current conversion circuit figure in this utility model embodiment three；
Fig. 7 is the 3G communicating circuit figure in this utility model embodiment three.
Detailed description of the invention
A kind of long distance wireless program-controlled intelligent temperature transmitter that this utility model provides, only need to revise the partial parameters of program, so that it may realize range adjustable, the advantage with the transmission of remote data real-time radio.Whole circuit design is succinct, precision is higher, good stability, solves transmitter and the problem of main control computer wireless communication distance and range regulates loaded down with trivial details problem.
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment, technique scheme is described in detail.
Embodiment one
As shown in Figure 1, a kind of long distance wireless program-controlled intelligent temperature transmitter that this utility model embodiment provides, including: signal collecting device 1, microprocessor 2, wireless telecommunications system 3 and power supply 4, signal collecting device 1 is for being acquired temperature signal, and temperature signal is converted to digital signal is delivered to microprocessor 2；Microprocessor 2 is used for converting digital signals into temperature data, current data and voltage signal, and temperature data and current data are sent to wireless telecommunications system 3；Wireless telecommunications system 3 is for carrying out radioing to main control computer by temperature data and current data；Power supply 4 is for providing electric energy for signal collecting device 1, microprocessor 2 and wireless telecommunications system 3.
Wherein, signal collecting device 1 includes: thermal resistance, signal regulating device and analog-digital converter, and thermal resistance is for detecting temperature signal, and temperature signal is delivered to signal regulating device；Thermal resistance uses precision to be the platinum resistance thermometer sensor, of 0.1.Thermal resistance carries out the medium of temperature detection and includes liquid, gas and steam.Signal regulating device is for being converted into voltage signal by the temperature signal received, and voltage signal is delivered to analog-digital converter；Analog-digital converter is for being converted into digital signal by the voltage signal received, and digital signal is delivered to microprocessor.
Signal regulating device includes: wheatstone bridge and programmable amplifier, and wheatstone bridge is for being converted into voltage signal by the temperature signal received, and voltage signal is delivered to programmable amplifier；Programmable amplifier is after be amplified the voltage signal received, then the voltage signal after amplifying is delivered to analog-digital converter.
Microprocessor 2 includes: arithmetical unit and digital analog converter, and arithmetical unit obtains temperature data and current data for the voltage signal received carries out computing；Digital analog converter is for being converted into voltage data by the voltage signal received.
Embodiment two
As shown in Figure 2, a kind of long distance wireless program-controlled intelligent temperature transmitter that this utility model embodiment provides, including: signal collecting device 1, microprocessor 2, wireless telecommunications system 3, power supply 4, liquid crystal display and power pack, signal collecting device 1 is for being acquired temperature signal, and temperature signal is converted to digital signal is delivered to microprocessor 2；Microprocessor 2 is used for converting digital signals into temperature data, current data and voltage signal, and temperature data and current data are sent to wireless telecommunications system 3；Wireless telecommunications system 3 is for carrying out radioing to main control computer by temperature data and current data；Power supply 4 is for providing electric energy for long distance wireless program-controlled intelligent temperature transmitter.Liquid crystal display is for the real-time temperature data showing microprocessor 2 output and current data.Power pack is for being converted to current signal by the voltage signal that microprocessor 2 exports.Current data is equal with the current value in current signal.
Wherein, signal collecting device 1 includes: thermal resistance, signal regulating device and analog-digital converter, and thermal resistance is for detecting temperature signal, and temperature signal is delivered to signal regulating device；Thermal resistance uses precision to be the platinum resistance thermometer sensor, of 0.1.Thermal resistance carries out the medium of temperature detection and includes liquid, gas and steam.Signal regulating device is for being converted into voltage signal by the temperature signal received, and voltage signal is delivered to analog-digital converter；Analog-digital converter is for being converted into digital signal by the voltage signal received, and digital signal is delivered to microprocessor.
Signal regulating device includes: wheatstone bridge and programmable amplifier, and wheatstone bridge is for being converted into voltage signal by the temperature signal received, and voltage signal is delivered to programmable amplifier；Programmable amplifier is after be amplified the voltage signal received, then the voltage signal after amplifying is delivered to analog-digital converter.
Microprocessor 2 includes: arithmetical unit and digital analog converter, and arithmetical unit obtains temperature data and current data for the voltage signal received carries out computing；Digital analog converter is for being converted into voltage data by the voltage signal received.
Wireless telecommunications system 3 includes: a 3G communication module, and 3G communication module is for receiving temperature data and the current data of microprocessor 2 output, and by temperature data and current data long range radio transmissions to main control computer.
Embodiment three
This practicality long distance wireless program-controlled intelligent temperature transmitter mainly includes thermal resistance 5, signal regulating device 6, analog-to-digital conversion device 7, microprocessor 2, liquid crystal display 8, power pack 9,3G wireless telecommunications system 10, power supply 4.
In embodiments herein, thermal resistance 5 uses the thermal resistance PT100 of precision 0.1, the PT100 of three-wire system to be directly accessed in signal regulating device 6.It can carry out temperature detection to media such as liquid, gas, steam.
Signal regulating device 6 is connected with thermal resistance 5, signal regulating device 6 is mainly made up of wheatstone bridge and programmable amplifier PGA281, wheatstone bridge can convert it into as voltage signal according to the size of input signal, programmable amplifier can amplify the multiple of voltage signal with programme-control, more preferably converts for analog-digital converter.Wherein, resistance temperature measurement circuit is as it is shown on figure 3, the voltage follow and the wheatstone bridge that are made up of amplifier ADA4528 are constituted.The precision of 2.5V a reference source can affect the accuracy of system, and voltage follow can well overcome late-class circuit to affect it.Resistance variations faint for PT100 is changed into change in voltage by wheatstone bridge, is preferably utilized by system.Signal conditioning circuit as shown in Figure 4, is mainly made up of programmable amplifier PGA281.Microprocessor carries out programme-control to regulate system amplification to it, the problem well solving the regulation inconvenience of conventional temperature transmitter range.
Analog-to-digital conversion device 7 uses chip AD7705 to be connected with signal regulating device 6, gathers the voltage signal of analog-digital converter 7 output and carries out converting output digit signals.Analog to digital conversion circuit is as it is shown in figure 5, be mainly made up of analog-digital converter AD7705.This transducer utilizesSwitch technology achieves 16 without losing code performance, CMOS structure guarantees that device has extremely low power dissipation, power-down mode reduces power consumption when waiting to 20uW, by at input stage application slicing stabilization technique, AD7705 also has the performance of low input drift, the single-ended signal of 0-+5V can be processed, be well suited for native system.
Microprocessor 2 uses single-chip microcomputer STM32F103RCT6 to be connected with analog-digital converter 7, receives the digital signal of analog-digital converter 7 output, and for subsequent module after processing.Including: calculate temperature data and current data, utilize the voltage data that internal digital analog converter DAC output is corresponding.
Liquid crystal display 8 uses industry liquid crystal display screen LCD1602 to be connected with microprocessor 2, receives the digital signal input of microprocessor 2, real-time displays temperature data and the current data of output.
Power pack 9 is connected with microprocessor 2, accepts the voltage signal input of microprocessor 2, utilizes single amplifier to follow output voltage and acts on fixed value resistance, the standard current signal that output is corresponding.Current conversion circuit as shown in Figure 6, is mainly made up of amplifier ADA4528 and audion 9013.Audion S9013 can improve the ability of the output electric current of system, and the voltage of single-chip microcomputer output is equivalent to act directly on R23 by the short characteristic of the void of amplifier, and V2/R23 is the electric current of transmitter output.
3G wireless telecommunications system 10 mainly uses Huawei MU509 to be connected with microprocessor 2, utilizes 3G module communications functions, receives the digital signal input of microprocessor 2, and the current data of long range radio transmissions temperature data and output is to main control computer.3G communicating circuit is as it is shown in fig. 7, main by photovoltaic conversion chip MAX3232 and 3G module.What microprocessor was exported by MAX3232 is RS232 level that Transistor-Transistor Logic level changes into that 3G module can receive.
Power supply 4 is responsible for providing energy to this system, both can use mains-supplied, it would however also be possible to employ battery is powered, but after eventually passing power supply conditioning, the power supply of feed system has the good characteristic such as High-current output, low interference.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
1, owing to have employed 3G communication module, by 3G wireless communication technique, efficiently solve Intellectual Thermal Transmitter in prior art cannot the problem of long distance wireless real-time online transmission data, and then achieve Intellectual Thermal Transmitter and main control computer can be with long-distance radio communication.
2, owing to have employed programmable amplifier in signal collecting device, efficiently solve the problem that in prior art, the regulation of Intellectual Thermal Transmitter range is inconvenient, and then it is easy to adjust to achieve Intellectual Thermal Transmitter range.
It should be noted last that, above detailed description of the invention is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail with reference to example, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent, without deviating from the spirit and scope of technical solutions of the utility model, it all should be contained in the middle of right of the present utility model.
Claims (8)
1. a long distance wireless program-controlled intelligent temperature transmitter, it is characterised in that including:
One signal collecting device, described signal collecting device is for being acquired temperature signal, and described temperature signal is converted to digital signal is delivered to microprocessor；
One microprocessor, described microprocessor for being converted to temperature data, current data and voltage signal by described digital signal, and described temperature data and described current data are sent to wireless telecommunications system；
One wireless telecommunications system, described wireless telecommunications system is for carrying out radioing to main control computer by described temperature data and described current data；
One power supply, described power supply is for providing electric energy for described signal collecting device, described microprocessor and described wireless telecommunications system;
Wherein, described signal collecting device includes: a thermal resistance, and described thermal resistance is for detecting temperature signal, and described temperature signal is delivered to signal regulating device；
One signal regulating device, described signal regulating device is for being converted into voltage signal by the described temperature signal received, and described voltage signal is delivered to analog-digital converter；
One analog-digital converter, described analog-digital converter is for being converted into digital signal by the described voltage signal received, and described digital signal is delivered to described microprocessor；
Described signal regulating device includes:
One wheatstone bridge, described wheatstone bridge is for being converted into voltage signal by the described temperature signal received, and described voltage signal is delivered to programmable amplifier；
One programmable amplifier, described programmable amplifier is after be amplified the described voltage signal received, the more described voltage signal after amplifying is delivered to described analog-digital converter.
2. long distance wireless program-controlled intelligent temperature transmitter as claimed in claim 1, it is characterised in that described microprocessor includes:
One arithmetical unit, described arithmetical unit obtains described temperature data and described current data for the voltage signal received carries out computing；
One digital analog converter, described digital analog converter is for being converted into voltage data by the described voltage signal received.
3. long distance wireless program-controlled intelligent temperature transmitter as claimed in claim 1, it is characterised in that described wireless telecommunications system includes:
One 3G communication module, described 3G communication module is for receiving the described temperature data of described microprocessor output and described current data, and by described temperature data and described current data long range radio transmissions to main control computer.
4. long distance wireless program-controlled intelligent temperature transmitter as claimed in claim 1, it is characterised in that also include:
One liquid crystal display, described liquid crystal display shows the described temperature data of described microprocessor output and described current data in real time.
5. the long distance wireless program-controlled intelligent temperature transmitter as described in any one of claim 1-4, it is characterised in that also include:
One power pack, described power pack is for being converted to current signal by the described voltage signal that microprocessor exports.
6. long distance wireless program-controlled intelligent temperature transmitter as claimed in claim 1, it is characterised in that:
Described thermal resistance uses precision to be the platinum resistance thermometer sensor, of 0.1.
7. long distance wireless program-controlled intelligent temperature transmitter as claimed in claim 1, it is characterised in that:
Described thermal resistance carries out the medium of temperature detection and includes liquid, gas and steam.
8. long distance wireless program-controlled intelligent temperature transmitter as claimed in claim 5, it is characterised in that:
Described current data is equal with the current value in described current signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201521064668.9U CN205426376U (en) | 2015-12-17 | 2015-12-17 | Long -range wireless programme -controlled intelligent temperature transmitter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521064668.9U CN205426376U (en) | 2015-12-17 | 2015-12-17 | Long -range wireless programme -controlled intelligent temperature transmitter |
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| CN205426376U true CN205426376U (en) | 2016-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404190A (en) * | 2016-08-31 | 2017-02-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Novel line temperature transmission device |
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2015
- 2015-12-17 CN CN201521064668.9U patent/CN205426376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404190A (en) * | 2016-08-31 | 2017-02-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Novel line temperature transmission device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20171217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |