CN206291973U - A kind of wireless hardening media temperature acquisition system of high frequency - Google Patents
A kind of wireless hardening media temperature acquisition system of high frequency Download PDFInfo
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- CN206291973U CN206291973U CN201621448777.5U CN201621448777U CN206291973U CN 206291973 U CN206291973 U CN 206291973U CN 201621448777 U CN201621448777 U CN 201621448777U CN 206291973 U CN206291973 U CN 206291973U
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Abstract
The utility model discloses a kind of wireless hardening media temperature acquisition system of high frequency, including signal acquisition terminal and signal receiving end；Signal acquisition terminal includes thermocouple temperature sensor, signal conditioning circuit, AD digital analog converters, digital signal processing circuit and wireless data transtation mission circuit successively, thermocouple temperature sensor is connected with the input of signal conditioning circuit, the output end of signal conditioning circuit is connected with the analog input end of AD digital analog converters, the digital output end of AD digital analog converters is connected with digital signal processing circuit input, the output end connection wireless data transtation mission circuit of digital signal processing circuit, signal acquisition terminal sends wireless blue tooth signal by wireless data transtation mission circuit；Signal receiving end includes central processing unit and the wireless data receiving circuit and telecommunication circuit that are connected with central processing unit, and central processing unit receives wireless blue tooth signal by wireless data receiving circuit, and central processing unit is connected by telecommunication circuit with PC terminals.
Description
Technical field
The utility model is related to a kind of temperature acquisition system, more particularly to a kind of wireless hardening media temperature of novel high-frequency to adopt
Collecting system.
Background technology
With the development of science and technology, electronic technology is integrated just towards high speed, and the direction of miniaturization is developed, at present
Domestic existing hardening media temperature collecting device, data signal acquisition frequency is low, is easily disturbed by probe surface electrostatic signal,
Also easily influenceed by preamplifier temperature drift.Therefore a kind of wireless hardening media temperature acquisition system of novel high-frequency is opened
Send out necessary.
Utility model content
Utility model purpose：Technical problem to be solved in the utility model is to provide a kind of wireless hardening media temperature of high frequency
Degree acquisition system, hardening media hair temperature acquisition system data signal acquisition frequency is high, strong antijamming capability.
In order to solve the above technical problems, the technical scheme that is used of the utility model for：
A kind of wireless hardening media temperature acquisition system of high frequency, including signal acquisition terminal and signal receiving end；The signal
Collection terminal includes thermocouple temperature sensor, signal conditioning circuit, AD digital analog converters, digital signal processing circuit and nothing successively
Line number is connected according to transtation mission circuit, the thermocouple temperature sensor with the input of signal conditioning circuit, signal conditioning circuit
Output end is connected with the analog input end of AD digital analog converters, the digital output end of AD digital analog converters and Digital Signal Processing
Circuit input end is connected, and the output end connection wireless data transtation mission circuit of digital signal processing circuit, the signal acquisition terminal is led to
Cross wireless data transtation mission circuit and send wireless blue tooth signal；The signal receiving end includes central processing unit and is processed with center
The wireless data receiving circuit and RS232 telecommunication circuits of device connection, the central processing unit are connect by wireless data receiving circuit
Wireless blue tooth signal is received, the central processing unit is connected by RS232 telecommunication circuits with PC terminals；The nothing of the signal acquisition terminal
Line number passes through bluetooth connection according to the wireless data receiving circuit of transtation mission circuit and signal receiving end.
Wherein, the signal receiving end also includes the power supply unit being connected with central processing unit, key input unit and shows
Show unit.
Wherein, the thermocouple temperature sensor is K-type thermocouple temperature sensor, the thermocouple temperature sensor position
In the center of probe.
Wherein, the bluetooth model cc2541 Bluetooth chips.
Wherein, the single-chip microcomputer model STM8S103K3 that the digital signal processing circuit is used, single-chip microcomputer has VCC at 2
Power supply is powered, and VCC connections RE3 is grounded after being connected with CE3, and single-chip microcomputer includes that NRST pins, NRST are grounded after being connected with CE3, single
Piece machine also includes VSS ports, VCAP ports and vdd terminal mouthful, and VSS ports ground connection, VSS ports connection CE1 connects with VCAP ports,
VSS ports are connected by CE2 with vdd terminal mouthful, vdd terminal mouthful connection VCC；Single-chip microcomputer also includes PB4/I2C_SCL ports and PB5/
I2C_SDA ports, PB4/I2C_SCL is connected in series PB5/I2C_ with RE6 series connections VCC, PB4/I2C_SCL and RE6 and RE5
SDA。
Wherein, the AD digital analog converters of the model AD8495 of the AD digital analog converters.
Compared with prior art, technical solutions of the utility model are had an advantageous effect in that：
The utility model hardening media temperature acquisition system is used to carry out high speed acquisition to the temperature signal of hardening media,
Temperature characteristics is formed, and Data Analysis Services are carried out to temperature characteristics；The utility model hardening media temperature acquisition
System increased signal conditioning circuit before thermocouple signal digital-to-analogue conversion, so that anti-tampering energy when improving system process signal
Power；, by wireless blue tooth transmission signal, measurement is convenient, realizes data reality for last the utility model hardening media temperature acquisition system
When transmit and analyze.
Brief description of the drawings
Fig. 1 is the schematic diagram of the wireless hardening media temperature acquisition system of the utility model high frequency；
Fig. 2 moves towards figure for the signal of the wireless hardening media temperature acquisition system of the utility model high frequency；
Fig. 3 is the circuit diagram of signal conditioning circuit and AD digital analog converters；
Fig. 4 is the circuit diagram of digital signal processing circuit；
Fig. 5 is the circuit diagram of wireless data transtation mission circuit；
Fig. 6 is the circuit diagram of wireless data receiving circuit；
Fig. 7 is that the temperature characterisitic that the temperature signal that the utility model temperature acquisition system is gathered is formed after analyzing and processing is bent
Line.
Specific embodiment
The technical solution of the utility model is described further below, but the utility model scope required for protection
It is not limited thereto.
As shown in figs. 1 to 6, the wireless hardening media temperature acquisition system of the utility model high frequency, including signal acquisition terminal and
Signal receiving end；Signal acquisition terminal includes thermocouple temperature sensor, signal conditioning circuit, AD digital analog converters, numeral successively
Signal processing circuit and wireless data transtation mission circuit, thermocouple temperature sensor are connected with the input of signal conditioning circuit, letter
The output end of number modulate circuit is connected with the analog input end of AD digital analog converters, the digital output end of AD digital analog converters with
Digital signal processing circuit input is connected, the output end connection wireless data transtation mission circuit of digital signal processing circuit, signal
Collection terminal sends wireless blue tooth signal by wireless data transtation mission circuit；Signal receiving end include central processing unit and with center
Wireless data receiving circuit, RS232 telecommunication circuits, power supply unit, key input unit and display unit that processor is connected, in
Central processor receives wireless blue tooth signal by wireless data receiving circuit, and central processing unit passes through RS232 telecommunication circuits and PC
Terminal is connected；The wireless data transtation mission circuit of signal acquisition terminal is connected with the wireless data receiving circuit of signal receiving end by bluetooth
Connect, power supply unit is powered for central processing unit (android system).
Thermocouple temperature sensor is K-type thermocouple temperature sensor, and thermocouple temperature sensor is located at the center of probe,
Temperature signal is mainly converted to electric potential signal and is transferred to signal conditioning circuit.
The signal conditioning circuit is a low pass filter, and the long lead of thermocouple is picked up similar to the effect of antenna
Unnecessary interference signal filters out interference signal, and signal conditioning circuit is a wave filter, eliminates probe surface electrostatic signal
Interference.
AD digital analog converters be it is a kind of the temperature potential of thermocouple both positive and negative polarity is converted into data signal, electric potential signal passes through
Signal conditioning circuit is delivered in the AD digital analog converters of model AD8495, is input to the small-signal of AD8495 by amplifying
Afterwards, the voltage being directly proportional to thermocouple measurement end temperature is exported, the output accuracy of AD8495 is 5mv/ DEG C, AD8495 bands
There is initialization of calibration precision, the error for eliminating initial calibration point, the built-in fixed gain of AD8495 are calibrated by single point temperature
Instrument amplifier, the amplifier has common mode rejection performance high, can suppress the common-mode noise of the long lead pickup of thermocouple.
As shown in figure 3, signal conditioning circuit and AD d convertor circuit connection figures, JG connection thermocouple sensors two
End, JG1 connection RG2 to port IN-, IN- connection CG3 ground connection, IN- connects RG2 and RG3 series connection ground connection, JG2 connection RG1 to end
Mouth IN+, IN+ and CG1 are connected ground connection, and connect CG2 between IN- and IN+, and AD8495 digital analog converters also include VSS ports and REF
Port, REF ports ground connection, REF ports be connecteds with VSS ports, OUT terminal mouthful and SENSE ports short circuit, and OUT terminal mouth connects CG5 and connects
Ground, OUT terminal mouth is connected to No. 16 port AIN0/PB0 of the single-chip microcomputer of Fig. 4, and AD8495 digital analog converters also include VCC ports,
VCC ports are grounded by CG4, and CG6 is in parallel with CG4.
Digital signal processing circuit is mainly STM8S103K3 single chip circuits, and this single chip circuit mainly realizes switching on and shutting down
Control, display control, electric power detection, input through keyboard are simultaneously acquired calculation process to data, then send a signal to wireless
Data is activation circuit.
As shown in figure 4, STM8S103K3 single chip circuits have VCC power supplys at 2 to power, after VCC connections RE3 connects with CE3
Ground connection, single-chip microcomputer includes that NRST pins, NRST are grounded after being connected with CE3, and single-chip microcomputer also includes VSS ports, VCAP ports and VDD
Port, VSS ports ground connection, VSS ports connection CE1 is connected with VCAP ports, and VSS ports are connected by CE2 with vdd terminal mouthful, VDD
Port connects VCC；Single-chip microcomputer also includes PB4/I2C_SCL ports and PB5/I2C_SDA ports, and PB4/I2C_SCL connects with RE6
Meet VCC, PB4/I2C_SCL and RE6 and RE5 is connected in series PB5/I2C_SDA；Single-chip microcomputer also include AIN1/PB1 ports and
AIN0/PB0 ports, AIN0/PB0 ports are connected by AD_K with No. 6 pin OUT terminals mouthful of AD8495 in Fig. 3, and single-chip microcomputer is also wrapped
PD5/UART_TX ports and PD6/UART_RX ports are included, PD5/UART_TX ports are connected to the RXD1 ports in Fig. 6 with RE1,
PD6/UART_RX ports are connected to the TXD ports in Fig. 5 with RE2.
Wireless data transtation mission circuit is that temperature signal is carried out high frequency transmission by one kind by bluetooth；Bluetooth model cc2541
Bluetooth chip, 2.4GHz supports 2Mbps message transmission rates.
As shown in figure 5, BL_TXD is connected to QF1 ground levels, the connection of QF1 ground levels by RF2 in wireless data transtation mission circuit
RF1, RF1 and RF3 are connected to QF1 colelctor electrodes, QF1 emitter stages connection QF2 emitter stages, QF2 grounded emitters, QF1 current collections
Pole connects QF2 base stages, and QF2 colelctor electrodes connection RF4 connects the PD5/UART_TX ports that power supply VCC, QF2 colelctor electrode is connected to Fig. 4.
Wireless data receiving circuit is that temperature signal is carried out high-rate reception by one kind, and data are carried out with high frequency collection, and
The data that will be received are transferred to single-chip microcomputer, carry out the calculation process of data by algorithm in single-chip microcomputer.
As shown in fig. 6, RXD1 is connected to QF3 ground levels by RF6 in wireless data receiving circuit, QF3 ground levels connection RF5 and
RF7 is connected to QF3 colelctor electrodes, QF3 emitter stages connection QF4 emitter stages, QF4 grounded emitters, QF3 colelctor electrodes connection QF4
Base stage, QF4 colelctor electrodes connection RF8 connects the BL_TXD ports that power supply VCC, QF4 colelctor electrode is connected to Fig. 5.
The utility model hardening media temperature acquisition system is that the probe where thermocouple temperature sensor is connected into handle,
By Bluetooth transmission signal between handle and main frame, and signal with the rate transmissioning data of 2.4Ghz, reach high frequency and wirelessly quench
The purpose of kerosene temperature temperature acquisition, the utility model hardening media temperature acquisition system data signal acquisition frequency is high, anti-interference
Property it is strong, be difficult to be disturbed by probe surface electrostatic signal.
Due to hardening media, temperature signal change is fast in test process, in order to the temperature of accurate record hardening media
, it is necessary to the temperature acquisition system of higher frequency records the temperature change of hardening media, Fig. 7 is the utility model quenching for degree change
The hardening media temperature characteristics that medium temperature acquisition system is collected.
Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, and is not to this reality
With the restriction of new implementation method.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And these
Belong to obvious change or change still in protection domain of the present utility model that spirit of the present utility model extends out
Among.
Claims (6)
1. the wireless hardening media temperature acquisition system of a kind of high frequency, it is characterised in that：Including signal acquisition terminal and signal receiving end；
The signal acquisition terminal includes thermocouple temperature sensor, signal conditioning circuit, AD digital analog converters, Digital Signal Processing successively
Circuit and wireless data transtation mission circuit, the thermocouple temperature sensor are connected with the input of signal conditioning circuit, and signal is adjusted
The output end for managing circuit is connected with the analog input end of AD digital analog converters, digital output end and the numeral of AD digital analog converters
Signal processing circuit input is connected, the output end connection wireless data transtation mission circuit of digital signal processing circuit, the signal
Collection terminal sends wireless blue tooth signal by wireless data transtation mission circuit；The signal receiving end include central processing unit and with
The wireless data receiving circuit and RS232 telecommunication circuits of central processing unit connection, the central processing unit are connect by wireless data
Receive circuit and receive wireless blue tooth signal, the central processing unit is connected by RS232 telecommunication circuits with PC terminals；The signal is adopted
The wireless data receiving circuit of the wireless data transtation mission circuit and signal receiving end that collect end passes through bluetooth connection.
2. the wireless hardening media temperature acquisition system of high frequency according to claim 1, it is characterised in that：The signal is received
End also includes the power supply unit, key input unit and the display unit that are connected with central processing unit.
3. the wireless hardening media temperature acquisition system of high frequency according to claim 1, it is characterised in that：The thermocouple temperature
Degree sensor is K-type thermocouple temperature sensor.
4. the wireless hardening media temperature acquisition system of high frequency according to claim 1, it is characterised in that：The bluetooth model
It is cc2541 Bluetooth chips.
5. the wireless hardening media temperature acquisition system of high frequency according to claim 1, it is characterised in that：The data signal
The single-chip microcomputer model STM8S103K3 that process circuit is used, single-chip microcomputer has VCC power supplys at 2 to power, and VCC connection RE3 and CE3 go here and there
It is grounded after connection, single-chip microcomputer includes that NRST pins, NRST are grounded after being connected with CE3, and single-chip microcomputer also includes VSS ports, VCAP ports
With vdd terminal mouthful, VSS ports ground connection, VSS ports connection CE1 connect with VCAP ports, and VSS ports are connected by CE2 with vdd terminal mouth
Connect, vdd terminal mouthful connection VCC；Single-chip microcomputer also include PB4/I2C_SCL ports and PB5/I2C_SDA ports, PB4/I2C_SCL with
RE6 series connections VCC, PB4/I2C_SCL and RE6 and RE5 are connected in series PB5/I2C_SDA.
6. the wireless hardening media temperature acquisition system of high frequency according to claim 1, it is characterised in that：The AD digital-to-analogues turn
The AD digital analog converters of the model AD8495 of parallel operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621448777.5U CN206291973U (en) | 2016-12-27 | 2016-12-27 | A kind of wireless hardening media temperature acquisition system of high frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621448777.5U CN206291973U (en) | 2016-12-27 | 2016-12-27 | A kind of wireless hardening media temperature acquisition system of high frequency |
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| CN206291973U true CN206291973U (en) | 2017-06-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2690719C1 (en) * | 2018-10-01 | 2019-06-05 | Федеральное государственное учреждение "Федеральный научно-исследовательский центр "Кристаллография и фотоника" Российской академии наук" | Wireless temperature measuring device |
| CN110579293A (en) * | 2019-10-23 | 2019-12-17 | 中航飞机起落架有限责任公司 | method for detecting quenching temperature of structural member in vacuum heat treatment |
| CN111157135A (en) * | 2020-01-20 | 2020-05-15 | 扬州大学 | Indirect measurement method for surface temperature of quenched part |
| WO2021168960A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Online monitoring system for cooling performance of quenching medium |
| WO2021168961A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Test device for thermal stability of quenching medium |
-
2016
- 2016-12-27 CN CN201621448777.5U patent/CN206291973U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2690719C1 (en) * | 2018-10-01 | 2019-06-05 | Федеральное государственное учреждение "Федеральный научно-исследовательский центр "Кристаллография и фотоника" Российской академии наук" | Wireless temperature measuring device |
| CN110579293A (en) * | 2019-10-23 | 2019-12-17 | 中航飞机起落架有限责任公司 | method for detecting quenching temperature of structural member in vacuum heat treatment |
| CN111157135A (en) * | 2020-01-20 | 2020-05-15 | 扬州大学 | Indirect measurement method for surface temperature of quenched part |
| CN111157135B (en) * | 2020-01-20 | 2021-06-04 | 扬州大学 | Indirect measurement method for surface temperature of quenched part |
| WO2021168960A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Online monitoring system for cooling performance of quenching medium |
| WO2021168961A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Test device for thermal stability of quenching medium |
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