CN106768368B - A kind of wireless transmitter detector of railway infrared journal temperature detection system - Google Patents
A kind of wireless transmitter detector of railway infrared journal temperature detection system Download PDFInfo
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- CN106768368B CN106768368B CN201710098199.XA CN201710098199A CN106768368B CN 106768368 B CN106768368 B CN 106768368B CN 201710098199 A CN201710098199 A CN 201710098199A CN 106768368 B CN106768368 B CN 106768368B
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 47
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 87
- 239000003990 capacitor Substances 0.000 claims description 37
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 description 2
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 description 2
- 102100021133 Nuclear protein 1 Human genes 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
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- 230000001965 increasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/80—Calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J2005/0033—Wheel
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Abstract
The invention discloses a kind of wireless transmitter detectors of railway infrared journal temperature detection system, including preceding control panel, liquid crystal display, key panel, instruction light panel, error code testing input terminal, digital voltmeter, receiver, battery supply, control circuit board, programmable attenuator, RS232 message output port, RS232 serial communication port, power switch, rear control panel, aluminum cabinet；Liquid crystal display, key panel, instruction light panel, error code testing input terminal, digital voltmeter are arranged on the front panel of cabinet；Receiver, battery supply, control circuit board, programmable attenuator are arranged in aluminum cabinet；RS232 message output port, RS232 serial communication port, power switch are arranged on the rear control panel of cabinet.The present invention covering of wireless transmitting system and can propagate field strength and give full play to infrared journal temperature detection system in the effect for guaranteeing that running train is transported safely to detect the accuracy and reliability of wireless transmitter under Accurate Prediction field condition.
Description
Technical field
The present invention relates to signal transmission, automatic detection, display equipment, more particularly, to a kind of railway infrared journal temperature detection system
The wireless transmitter detector of system.
Background technique
With railway the sixth time speed-raising, infrared journal temperature detection system is preventing operation vehicle combustion axis, is cutting axis, ensures train
Increasing effect is played in terms of traffic safety.At the dynamic detection and instant failure for monitoring system to adapt to infrared shaft temperature
Reason, cooperation Ministry of Railways's vehicle speed-raising requires and detect vehicle and the data of acquisition station terrestrial wireless communication apparatus are transmitted, infrared shaft temperature
Detection system is mounted wireless transmitter as wireless transmitting system.
But in actual use, since rail surrounding environment condition is poor, wireless transmitting system failure rate is higher, often occurs
Phenomena such as " no header ", " verification is wrong ", it can not receive message at all sometimes.The dynamic detection score basis of the Ministry of Railways is exactly live nothing
The message of line transmission, does not receive message and has a significant impact to the achievement of each road bureau.However due to lacking special detection tool, mesh
Preceding scene is all to detect by rule of thumb to wireless transmitting system, by seeing indicator light, listens intercom sound, walks out and receive number outside 2 kilometers
According to determine whether normal.
The above method error is big, time-consuming and laborious, and measurement result is often easy because of people, and cannot accurately check and set
It is standby whether normal.Therefore, there is an urgent need to the instruments that one kind can carry out necessary detection to wireless transmitting system at scene.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of wireless transmission machine examinations of railway infrared journal temperature detection system
Instrument is surveyed, has the function of simulation external electromagnetic field attenuation characteristic, it being capable of wireless transmitting system under Accurate Prediction field condition
Covering and propagation field strength, to detect the accuracy and reliability of wireless transmitter.The detector is carried, is operated, is easy to use fast
Victory, it is accurate, reliable, it is the requisite instrumentation of the installation of wireless transmitting system equipment, daily maintenance, maintenance, and have practical value, has
Good promotion prospect.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of wireless transmitter detector of railway infrared journal temperature detection system, including preceding control panel, liquid crystal display,
It is key panel, instruction light panel, error code testing input terminal, digital voltmeter, receiver, battery supply, control circuit board, program-controlled
Attenuator, RS232 message output port, RS232 serial communication port, power switch, rear control panel, aluminum cabinet；
Cabinet is arranged in liquid crystal display, key panel, instruction light panel, error code testing input terminal, digital voltmeter
On front panel；Receiver, battery supply, control circuit board, programmable attenuator are arranged in aluminum cabinet；The output of RS232 message
Port, RS232 serial communication port, power switch are arranged on the rear control panel of cabinet.
According to above scheme, programmable attenuator circuit is by the first power drive chip U4, the second power drive chip U5,
Three power drive chip U6, the 4th power drive chip U7, phase inverter U8,8 diodes, be respectively as follows: D1, D2, D3, D4, D5,
D6, D7, D8, attenuator interface P_Atten composition, one input terminal of channel, 1 foot of the first power drive chip U4 meet single-chip microcontroller U1
The 51st pin of I/O mouth and phase inverter U8 the first NOT gate 1 foot of input terminal, the channel one of the first power drive chip U4 inputs
2 feet are held to meet the VCC of 5V regulated power supply, one output end of channel, 3 foot of the first power drive chip U4 is with first diode D1's
It is grounded after cathode series connection, the 4th pin of power end of the first power drive chip U4 meets the GND of 5V regulated power supply, and the first power drives
The 5th pin of two output end of channel of dynamic chip U4 is grounded after connecting with the cathode of the second diode D2, the first power drive chip
Two input terminal of channel, 6 foot of U4 meets the VCC of 5V regulated power supply, and channel two input terminals, 7 feet of the first power drive chip U4 are reversed
The 8th pin of power end of 2 foot of output end of the first NOT gate of phase device U8, the first power drive chip U4 connects 5V regulated power supply
VCC；
One input terminal of channel, 1 foot of second power drive chip U5 connects the 52nd pin of I/O mouth and phase inverter of single-chip microcontroller U1
One input terminal of channel, 2 foot of 13 foot of input terminal of the 6th NOT gate of U8, the second power drive chip U5 connects 5V regulated power supply
One output end of channel, 3 foot of VCC, the second power drive chip U5 are grounded after connecting with the cathode of third diode D3, the second function
The 4th pin of power end of rate driving chip U5 connects the GND of 5V regulated power supply, two output end of channel of the second power drive chip U5
5th pin is grounded after connecting with the cathode of the 4th diode D4, and two input terminal of channel, 6 foot of the second power drive chip U5 meets 5V
The VCC of regulated power supply, two input terminal of channel, 7 foot of the second power drive chip U5 connect the output end of the 6th NOT gate of phase inverter U8
The 8th pin of power end of 12 feet, the second power drive chip U5 meets the VCC of 5V regulated power supply；
One input terminal of channel, 1 foot of third driving chip U6 connects the 53rd pin of I/O mouth and phase inverter U8 of single-chip microcontroller U1
3 foot of input terminal of second NOT gate, one input terminal of channel, 2 foot of third driving chip U6 meet the VCC of 5V regulated power supply, and third is driven
One output end of channel, 3 foot of dynamic chip U6 is grounded after connecting with the cathode of the 5th diode D5, the power supply of third driving chip U6
The 4th pin is held to meet the GND of 5V regulated power supply, the 5th pin of two output end of channel of third driving chip U6 and the 6th diode D6
Cathode series connection after be grounded, two input terminal of channel, 6 foot of third driving chip U6 meets the VCC of 5V regulated power supply, and third drives core
Two input terminal of channel, 7 foot of piece U6 connects 4 foot of output end of the second NOT gate of phase inverter U8, the power end of third driving chip U6
8 pins meet the VCC of 5V regulated power supply；
One input terminal of channel, 1 foot of 4th driving chip U7 connects the 54th pin of I/O mouth and phase inverter U8 of single-chip microcontroller U1
9 foot of input terminal of 5th NOT gate, one input terminal of channel, 2 foot of the 4th driving chip U7 connect the VCC of 5V regulated power supply, 4 wheel driven
One output end of channel, 3 foot of dynamic chip U7 is grounded after connecting with the cathode of the 7th diode D7, the power supply of the 4th driving chip U7
The 4th pin is held to meet the GND of 5V regulated power supply, the 5th pin of two output end of channel of the 4th driving chip U7 and the 8th diode D8
Cathode series connection after be grounded, two input terminal of channel, 6 foot of the 4th driving chip U7 meets the VCC of 5V regulated power supply, the 4th driving core
Two input terminal of channel, 7 foot of piece U6 connects 8 foot of output end of the 5th NOT gate of phase inverter U8, the power end of the 4th driving chip U7
8 pins meet the VCC of 5V regulated power supply；7 foot of power end of 4th driving chip U8 connects the GND of 5V regulated power supply, the 4th driving core
14 foot of power end of piece U8 meets the VCC of regulated power supply；
Attenuator interface P_Atten has 9 pins, and the 1st pin connects 24V regulated power supply, and the 2nd pin connects the first driving chip
3 foot of first passage output end of U4, the 3rd pin connect 5 foot of second channel output end of the first driving chip U4, and the 4th pin connects
3 foot of first passage output end of two driving chip U5, the 5th pin connect 5 foot of second channel output end of the second driving chip U5, the
6 pins connect 3 foot of first passage output end of third driving chip U6, and the second channel that the 7th pin meets third driving chip U6 is defeated
5 foot of outlet, the 8th pin connect 3 foot of first passage output end of the 4th driving chip U7, and the 9th pin connects the 4th driving chip U7's
5 foot of second channel output end.
According to above scheme, RS232 serial port circuit by serial communication chip U3,5 capacitors, be respectively as follows: C16, C17,
C18, C19, C20, second serial COM2 composition, 1 foot of capacitance terminal of serial communication chip U3 is connected with the 16th capacitor C16 to be followed by
Ground, 2 foot of the end VS+ of serial communication chip U3 are grounded after connecting with the 17th capacitor C17,3 foot of electric end of serial communication chip U3
The GND of 5V regulated power supply is met, connect the 18th capacitor C18 between 4 foot of capacitance terminal and 5 foot of capacitance terminal of serial communication chip U3,
It is grounded after the 19th capacitor of the end VS- series connection of serial communication chip U3,11 foot of input terminal of serial communication chip U3 connects single-chip microcontroller
25 foot of serial ports output end of U1,13 foot of input terminal of serial communication chip U3 connect 3 feet of serial ports COM2, serial communication chip U3's
14 foot of output end connects 2 feet of second serial COM2, and 15 foot of power end of serial communication chip U3 meets the GND of 5V regulated power supply, string
16 foot of power end of port communications chip U3 meets the VCC of 5V regulated power supply, and is grounded after connecting with the 20th capacitor；Second serial
5 feet of COM2 meet the GND of 5V regulated power supply.
Compared with prior art, the beneficial effects of the present invention are: 1) instrument is easy to use, intelligence degree is high, is not required to
Professional knowledge is wanted, whether only showing tested instrument normally；Measurement of near distance, it is simple and convenient.2) it no longer needs live except 2KM
Test.3) Okumura/Hata model is applied, predicts and simulates on-site wireless signal strength environment.It 4), can by error detection
The quickly performance state of detection radio data set, there is the status displays such as normal, failure, maintenance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the master-plan block diagram of the present invention with wireless transmitter combined debugging.
Fig. 3 is circuit block diagram of the invention.
Fig. 4 is one of circuit diagram of the invention.
Fig. 5 is the two of circuit diagram of the invention.
Fig. 6 is the three of circuit diagram of the invention.
Fig. 7 is the four of circuit diagram of the invention.
Fig. 8 is the five of circuit diagram of the invention.
Fig. 9 is the six of circuit diagram of the invention.
Figure 10 is the seven of circuit diagram of the invention.
Figure 11 is the eight of circuit diagram of the invention.
In Fig. 1: preceding control panel 1, liquid crystal display 2, key panel 3, instruction light panel 4, error code testing input terminal 5,
Digital voltmeter 6, receiver 7, battery supply 8, control circuit board 9, programmable attenuator 10, RS232 message output port 11,
RS232 serial communication interface 12, power switch 13, rear control panel 14, cabinet 15.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
A kind of wireless transmitter detector of railway infrared journal temperature detection system, comprising: preceding control panel 1, liquid crystal display
Screen 2, key panel 3, instruction light panel 4, error code testing input terminal 5, digital voltmeter 6, receiver 7, battery supply 8, control
Circuit board 9, programmable attenuator 10, RS232 message output port 11, RS232 serial communication interface 12, power switch 13, rear control
Panel 14 processed, aluminum cabinet 15；Liquid crystal display 2, key panel 3, instruction light panel 4, error code testing input terminal 5, number electricity
Before pressure table 6 is mounted on control panel 1；Receiver 7, battery supply 8, control circuit board 9, programmable attenuator 10 are mounted on aluminum
Inside cabinet 15；RS232 message output port 11, RS232 serial communication interface 12, power switch 13 are mounted on rear control panel
On 14.
When carrying out experiment test to wireless transmitter, with Serial Port Line by the wireless transmission of railway infrared journal temperature detection system
RS232 message output port 11 after machine testing instrument cabinet on control panel 14 is connected to the data input pin of wireless transmitter, uses
BNC conducting wire inputs the data that the antenna output end of wireless transmitter is connected to programmable attenuator 10, then is declined with BNC conducting wire by program-controlled
The data for subtracting device 10 export the error code testing input terminal 5 connect on preceding control panel 1, and (in the inside of cabinet, error code testing is inputted
End 5 is connected with receiver 7, and receiver 7 is connected with control circuit board 9), power switch 13 is pressed, then select by key panel 3
The test tested can be started by selecting measurement condition and testing time.
RS232 message output port 11 is to send message data to wireless transmitter, and communication mode is that the serial ports of either simplex is logical
Letter mode, baud rate are 1200 bits per seconds；Control circuit board 9 is using ARM microcontroller STM32F407 as control core
Piece, STM32F407 generates M sequence message data and is sent to wireless transmitter by RS232 message output port 11, wireless to send out
Machine is penetrated by the message data received by passing through antenna transmission to programmable attenuator 10, programmable attenuator 10 after FSK modulation
The data that wireless transmitter is sent are decayed by setting multiple, the signal after decaying is received by receiver 7 again, is connect
The data that receipts machine 7 receives are demodulated to TTL signal again by control circuit board 9 by the Fsk demodulator in control circuit board 9
ARM microcontroller STM32F407 received, the reception mode of data is also the serial communication mode of either simplex, and baud rate is
1200Bit/S, the data that the data that the STM32F407 in last control circuit board 9 is received are sent with it carry out exclusive or
The bit error rate is calculated, is finally shown on liquid crystal display 2.
Instruction light panel 4 is used to refer to current test state；Digital voltmeter 6 is used to show the voltage value of battery supply 8,
Prompt user charges in time, and the voltage of battery supply 8 is DC12V；RS232 serial communication interface 12 is used to be led to PC machine
Letter transmits data and state in test process, and the baud rate of communication is 9600 bits per seconds.
Control circuit board 3 is by minimum system circuit/RS232 message output circuit, Fsk demodulator, RS232 serial port power
Road, programmable attenuator circuit composition, core of the minimum system circuit as control circuit board 3 have control modules
Function；The signal that receiving device (intercom B) 6 receives is demodulated into TTL signal by Fsk demodulator；The output of RS232 message
Transmission of the circuit for the message of wireless transmitter；RS232 serial port circuit with PC machine for communicating；Programmable attenuator circuit is used for
Control programmable attenuator reaches scheduled attenuation multiple.
Wherein: minimum system circuit STM32_MCU be equipped with single-chip microcontroller U1 (STM32F407), 1-11 capacitor: C1, C2,
C3, C4, C5, C6, C7, C8, C9, C10, C11,1-5 resistance: R1, R2, R3, R4, R5, the first Light-emitting diode LED 1, second
Light-emitting diode LED 2, the first key KEY1, the first crystal oscillator Y1, program download interface DEBUG, the first keystroke interface P_K1,
One indicator light interface P_L1, liquid crystal display interface Usart-GPU, first capacitor C1 are connected on the external clock end of single-chip microcontroller U1
Between 12 feet and the GND of 3.3V regulated power supply, the second capacitor C2 be connected on single-chip microcontroller U1 13 foot of external clock end and 3.3V it is steady
Between the GND of voltage source, crystal oscillator Y1 is connected between 13 foot of 12 foot of external clock end and external clock end of single-chip microcontroller U1, third
It is connected between 14 foot of reset terminal of single-chip microcontroller U1 and the GND of 3.3V regulated power supply after capacitor C3 is in parallel with the first key KEY1,
First resistor R1 connects I/O mouth 25 foot and 3.3V regulated power supply being followed by single-chip microcontroller U1 with the first Light-emitting diode LED 1
Between VCC, the 5th resistance R5 is connected between 99 foot of power end of single-chip microcontroller U1 and 100 feet, and the 6th capacitor C6 is connected on monolithic
Between 99 foot of power end and the GND of 3.3V regulated power supply of machine U1.
50 foot of power end of single-chip microcontroller U1,75 feet, 100 feet, 28 feet, 11 feet, 19 feet, 21 feet, 22 feet, that 6 feet meet 3.3V is steady
20 foot of power end, 74 feet, 27 feet, 10 feet of the VCC of voltage source, single-chip microcontroller U1 meet the GND of 3.3V regulated power supply, second resistance R2
It is connected between 94 foot of start end of single-chip microcontroller U1 and the GND of 3.3V regulated power supply, the 1-4 of the first key circuit interface P_K1
Foot connects 87 foot of I/O mouth, 88 feet, 89 feet, 90 pins in single-chip microcontroller U1 respectively, and the 5th foot of the first key circuit interface P_K1 connects
The GND of 3.3V regulated power supply, the 1-3 pin of the first indicator light interface P_L1 connect respectively single-chip microcontroller U1 42 foot of I/O mouth, 43
4th foot of foot, 44 feet, the first power-performance indicator light interface P_L1 connects the VCC of 3.3V regulated power supply, program download interface
The 1st pin of DEBUG meets the GND of 3.3V regulated power supply, and the 2nd pin meets the VCC of 3.3V regulated power supply, and the 3rd pin connects single-chip microcontroller
The program of U1 downloads 76 foot of clock end, and the 4th pin connects 72 foot of program download data end of single-chip microcontroller U1；4th capacitor C4 is connected on
Between 73 foot of boost capacitor end and the GND of 3.3V regulated power supply of single-chip microcontroller U1, the of liquid crystal display interface Usart-GPU is drawn
1 foot meets the GND of 5V regulated power supply, and the 2nd pin connects the 68th foot of 1 output end of serial ports in single-chip microcontroller U1, and the 3rd pin connects in monolithic
The 69th foot of 1 receiving end of serial ports of machine U1, the 4th pin meet the VCC of 5V regulated power supply, and the 5th capacitor C5 is connected on the liter of single-chip microcontroller U1
Between 49 foot of voltage capacitance end and the GND of 3.3V regulated power supply, 3rd resistor R3 be connected on 37 foot of start end of single-chip microcontroller U1 with
Between the GND of 3.3V regulated power supply, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor C10, the 11st capacitor
C11 parallel connection is followed by between the GND of the VCC and 3.3V regulated power supply of 3.3V regulated power supply.
RS232 message output circuit is made of first serial COM1, first serial COM1 the 1st, 5 pins connect 3.3V pressure stabilizing
The GND of power supply, the 3rd foot connect three output end of serial ports, 47 foot of single-chip microcontroller U1, and the 8th pin connects 86 foot of I/O mouth of single-chip microcontroller U1.
Fsk demodulator is by FSK demodulation chip U2 (73M223), 12-15 capacitor: C12, C13, C14, C15, the 6th electricity
Hinder R6, the second crystal oscillator Y2, data port Data_In composition；1 foot of power end of FSK demodulation chip U2, digital signal input control end
5 feet, 10 foot of synchronous enabled end meet the VCC of 5V regulated power supply, and the 6th foot of mode test lead of FSK demodulation chip U2 sends control terminal
7 feet, 8 foot of power end meet the GND of 5V regulated power supply；6th resistance R6 and the second crystal oscillator Y2 be connected in parallel on FSK demodulation chip U2 when
Between the 14th pin of clock input terminal and the 13rd pin of input end of clock, the 12nd capacitor C12 and the 13rd capacitor C13 are in parallel, and
The common end grounding of connection, one end in addition are connect respectively at the both ends of the 6th resistance R6, and the 14th capacitor C14 is connected on FSK demodulation
Between 1 foot of power end and the GND of 5V regulated power supply of chip U2, the 15th capacitor C15 is connected on the capacitor of FSK demodulation chip U2
It holds between 3 feet and the GND of 5V regulated power supply, the 1st foot ground connection of data port Data_In, the 2nd pin connects FSK demodulation chip U2's
4 foot of data input pin.
RS232 serial port circuit is by serial communication chip U3 (MAX3232), 16-20 capacitor: C16, C17, C18, C19,
C20, second serial COM2 composition, 1 foot of capacitance terminal of serial communication chip U3 are grounded after connecting with the 16th capacitor C16, serial ports
2 foot of the end VS+ of communication chip U3 is grounded after connecting with the 17th capacitor C17, and 3 foot of electric end of serial communication chip U3 connects 5V pressure stabilizing
Connect the 18th capacitor C18 between 4 foot of capacitance terminal of the GND of power supply, serial communication chip U3 and 5 foot of capacitance terminal, serial communication
It is grounded after the 19th capacitor of the end VS- series connection of chip U3,11 foot of input terminal of serial communication chip U3 connects the serial ports of single-chip microcontroller U1
25 foot of output end, 13 foot of input terminal of serial communication chip U3 connect 3 feet of serial ports COM2, the output end 14 of serial communication chip U3
Foot connects 2 feet of second serial COM2, and 15 foot of power end of serial communication chip U3 connects the GND of 5V regulated power supply, serial communication core
16 foot of power end of piece U3 meets the VCC of 5V regulated power supply, and is grounded after connecting with the 20th capacitor；5 feet of second serial COM2
Meet the GND of 5V regulated power supply.
Programmable attenuator circuit is by the first power drive chip U4 (DS75451), the second power drive chip U5
(DS75451), third power drive chip U6 (DS75451), the 4th power drive chip U7 (DS75451), phase inverter U8
(74LS04), 1-8 diode: D1, D2, D3, D4, D5, D6, D7, D8, attenuator interface P_Atten composition, the first power drive
One input terminal of channel, 1 foot of dynamic chip U4 connects the input of the 51st pin of I/O mouth of single-chip microcontroller U1 and the first NOT gate of phase inverter U8
1 foot is held, one input terminal of channel, 2 foot of the first power drive chip U4 connects the VCC of 5V regulated power supply, the first power drive chip
One output end of channel, 3 foot of U4 is grounded after connecting with the cathode of first diode D1, the power end of the first power drive chip U4
4th pin connects the GND of 5V regulated power supply, the 5th pin of two output end of channel of the first power drive chip U4 and the second diode
It being grounded after the cathode series connection of D2, two input terminal of channel, 6 foot of the first power drive chip U4 meets the VCC of 5V regulated power supply, and first
Two input terminal of channel, 7 foot of power drive chip U4 connects 2 foot of output end of the first NOT gate of phase inverter U8, the first power drive core
The 8th pin of power end of piece U4 meets the VCC of 5V regulated power supply.
One input terminal of channel, 1 foot of second power drive chip U5 connects the 52nd pin of I/O mouth and phase inverter of single-chip microcontroller U1
One input terminal of channel, 2 foot of 13 foot of input terminal of the 6th NOT gate of U8, the second power drive chip U5 connects 5V regulated power supply
One output end of channel, 3 foot of VCC, the second power drive chip U5 are grounded after connecting with the cathode of third diode D3, the second function
The 4th pin of power end of rate driving chip U5 connects the GND of 5V regulated power supply, two output end of channel of the second power drive chip U5
5th pin is grounded after connecting with the cathode of the 4th diode D4, and two input terminal of channel, 6 foot of the second power drive chip U5 meets 5V
The VCC of regulated power supply, two input terminal of channel, 7 foot of the second power drive chip U5 connect the output end of the 6th NOT gate of phase inverter U8
The 8th pin of power end of 12 feet, the second power drive chip U5 meets the VCC of 5V regulated power supply.
One input terminal of channel, 1 foot of third driving chip U6 connects the 53rd pin of I/O mouth and phase inverter U8 of single-chip microcontroller U1
3 foot of input terminal of second NOT gate, one input terminal of channel, 2 foot of third driving chip U6 meet the VCC of 5V regulated power supply, and third is driven
One output end of channel, 3 foot of dynamic chip U6 is grounded after connecting with the cathode of the 5th diode D5, the power supply of third driving chip U6
The 4th pin is held to meet the GND of 5V regulated power supply, the 5th pin of two output end of channel of third driving chip U6 and the 6th diode D6
Cathode series connection after be grounded, two input terminal of channel, 6 foot of third driving chip U6 meets the VCC of 5V regulated power supply, and third drives core
Two input terminal of channel, 7 foot of piece U6 connects 4 foot of output end of the second NOT gate of phase inverter U8, the power end of third driving chip U6
8 pins meet the VCC of 5V regulated power supply.
One input terminal of channel, 1 foot of 4th driving chip U7 connects the 54th pin of I/O mouth and phase inverter U8 of single-chip microcontroller U1
9 foot of input terminal of 5th NOT gate, one input terminal of channel, 2 foot of the 4th driving chip U7 connect the VCC of 5V regulated power supply, 4 wheel driven
One output end of channel, 3 foot of dynamic chip U7 is grounded after connecting with the cathode of the 7th diode D7, the power supply of the 4th driving chip U7
The 4th pin is held to meet the GND of 5V regulated power supply, the 5th pin of two output end of channel of the 4th driving chip U7 and the 8th diode D8
Cathode series connection after be grounded, two input terminal of channel, 6 foot of the 4th driving chip U7 meets the VCC of 5V regulated power supply, the 4th driving core
Two input terminal of channel, 7 foot of piece U6 connects 8 foot of output end of the 5th NOT gate of phase inverter U8, the power end of the 4th driving chip U7
8 pins meet the VCC of 5V regulated power supply；7 foot of power end of 4th driving chip U8 connects the GND of 5V regulated power supply, the 4th driving core
14 foot of power end of piece U8 meets the VCC of regulated power supply.
Attenuator interface P_Atten has 9 pins, and the 1st pin connects 24V regulated power supply, and the 2nd pin connects the first driving chip
3 foot of first passage output end of U4, the 3rd pin connect 5 foot of second channel output end of the first driving chip U4, and the 4th pin connects
3 foot of first passage output end of two driving chip U5, the 5th pin connect 5 foot of second channel output end of the second driving chip U5, the
6 pins connect 3 foot of first passage output end of third driving chip U6, and the second channel that the 7th pin meets third driving chip U6 is defeated
5 foot of outlet, the 8th pin connect 3 foot of first passage output end of the 4th driving chip U7, and the 9th pin connects the 4th driving chip U7's
5 foot of second channel output end.
Claims (2)
1. a kind of wireless transmitter detector of railway infrared journal temperature detection system, which is characterized in that including preceding control panel
(1), liquid crystal display (2), key panel (3), instruction light panel (4), error code testing input terminal (5), digital voltmeter (6),
Receiver (7), battery supply (8), control circuit board (9), programmable attenuator (10), RS232 message output port (11),
RS232 serial communication port (12), power switch (13), rear control panel (14), aluminum cabinet (15)；
Liquid crystal display (2), key panel (3), instruction light panel (4), error code testing input terminal (5), digital voltmeter (6) are set
It sets on the front panel of cabinet (15)；Receiver (7), battery supply (8), control circuit board (9), programmable attenuator (10) setting
In aluminum cabinet (15)；RS232 message output port (11), RS232 serial communication port (12), power switch (13) setting
On the rear control panel (14) of cabinet (15)；
Programmable attenuator circuit by the first power drive chip U4, the second power drive chip U5, third power drive chip U6,
4th power drive chip U7, phase inverter U8,8 diodes are respectively as follows: D1, D2, D3, D4, D5, D6, D7, D8, attenuator and connect
Mouthful P_Atten composition, one input terminal of channel, 1 foot of the first power drive chip U4 connect the 51st pin of I/O mouth of single-chip microcontroller U1 with
1 foot of input terminal of the first NOT gate of phase inverter U8, one input terminal of channel, 2 foot of the first power drive chip U4 connect 5V pressure stabilizing electricity
One output end of channel, 3 foot of the VCC in source, the first power drive chip U4 are grounded after connecting with the cathode of first diode D1, the
The 4th pin of power end of one power drive chip U4 meets the GND of 5V regulated power supply, and the channel two of the first power drive chip U4 is defeated
The 5th pin of outlet is grounded after connecting with the cathode of the second diode D2, two input terminal of channel, 6 foot of the first power drive chip U4
The VCC of 5V regulated power supply is met, two input terminal of channel, 7 foot of the first power drive chip U4 connects the defeated of the first NOT gate of phase inverter U8
The 8th pin of power end of 2 foot of outlet, the first power drive chip U4 meets the VCC of 5V regulated power supply；
One input terminal of channel, 1 foot of second power drive chip U5 connects the 52nd pin of I/O mouth and phase inverter U8 of single-chip microcontroller U1
13 foot of input terminal of six NOT gates, one input terminal of channel, 2 foot of the second power drive chip U5 meet the VCC of 5V regulated power supply, the
One output end of channel, 3 foot of two power drive chip U5 is grounded after connecting with the cathode of third diode D3, the second power drive
The 4th pin of power end of chip U5 meets the GND of 5V regulated power supply, and two output end the 5th of channel of the second power drive chip U5 draws
Foot is grounded after connecting with the cathode of the 4th diode D4, and two input terminal of channel, 6 foot of the second power drive chip U5 connects 5V pressure stabilizing
The VCC of power supply, two input terminal of channel, 7 foot of the second power drive chip U5 connect the output end 12 of the 6th NOT gate of phase inverter U8
The 8th pin of power end of foot, the second power drive chip U5 meets the VCC of 5V regulated power supply；
One input terminal of channel, 1 foot of third driving chip U6 connect single-chip microcontroller U1 the 53rd pin of I/O mouth and phase inverter U8 second
3 foot of input terminal of NOT gate, one input terminal of channel, 2 foot of third driving chip U6 meet the VCC of 5V regulated power supply, and third drives core
One output end of channel, 3 foot of piece U6 is grounded after connecting with the cathode of the 5th diode D5, the power end the 4th of third driving chip U6
Pin connects the GND of 5V regulated power supply, the cathode of two output end of channel the 5th pin and the 6th diode D6 of third driving chip U6
It is grounded after series connection, two input terminal of channel, 6 foot of third driving chip U6 meets the VCC of 5V regulated power supply, third driving chip U6's
Two input terminal of channel, 7 foot connects 4 foot of output end of the second NOT gate of phase inverter U8, the 8th pin of power end of third driving chip U6
Meet the VCC of 5V regulated power supply；
One input terminal of channel, 1 foot of 4th driving chip U7 connect single-chip microcontroller U1 the 54th pin of I/O mouth and phase inverter U8 the 5th
9 foot of input terminal of NOT gate, one input terminal of channel, 2 foot of the 4th driving chip U7 connect the VCC of 5V regulated power supply, the 4th driving core
One output end of channel, 3 foot of piece U7 is grounded after connecting with the cathode of the 7th diode D7, the power end the 4th of the 4th driving chip U7
Pin connects the GND of 5V regulated power supply, the cathode of two output end of channel the 5th pin and the 8th diode D8 of the 4th driving chip U7
It is grounded after series connection, two input terminal of channel, 6 foot of the 4th driving chip U7 meets the VCC of 5V regulated power supply, the 4th driving chip U6's
Two input terminal of channel, 7 foot connects 8 foot of output end of the 5th NOT gate of phase inverter U8, the 8th pin of power end of the 4th driving chip U7
Meet the VCC of 5V regulated power supply；7 foot of power end of 4th driving chip U8 meets the GND of 5V regulated power supply, the 4th driving chip U8's
14 foot of power end meets the VCC of regulated power supply；
Attenuator interface P_Atten has 9 pins, and the 1st pin connects 24V regulated power supply, and the 2nd pin connects the first driving chip U4's
3 foot of first passage output end, the 3rd pin connect 5 foot of second channel output end of the first driving chip U4, and the 4th pin connects the second drive
3 foot of first passage output end of dynamic chip U5, the 5th pin connect 5 foot of second channel output end of the second driving chip U5, and the 6th draws
Foot connects 3 foot of first passage output end of third driving chip U6, and the 7th pin connects the second channel output end of third driving chip U6
5 feet, the 8th pin connect 3 foot of first passage output end of the 4th driving chip U7, and the 9th pin connects the second of the 4th driving chip U7
5 foot of channel output end.
2. a kind of wireless transmitter detector of railway infrared journal temperature detection system as described in claim 1, which is characterized in that
RS232 serial port circuit is respectively as follows: C16, C17, C18, C19, C20, second serial by serial communication chip U3,5 capacitors
COM2 composition, 1 foot of capacitance terminal of serial communication chip U3 are grounded after connecting with the 16th capacitor C16, serial communication chip U3's
2 foot of the end VS+ is grounded after connecting with the 17th capacitor C17, and 3 foot of electric end of serial communication chip U3 meets the GND of 5V regulated power supply, string
Connect the 18th capacitor C18 between 4 foot of capacitance terminal of port communications chip U3 and 5 foot of capacitance terminal, the end VS- of serial communication chip U3
It connects and is grounded after the 19th capacitor, 11 foot of input terminal of serial communication chip U3 connects 25 foot of serial ports output end of single-chip microcontroller U1, string
13 foot of input terminal of port communications chip U3 connects 3 feet of serial ports COM2, and 14 foot of output end of serial communication chip U3 connects second serial
2 feet of COM2,15 foot of power end of serial communication chip U3 connect the GND of 5V regulated power supply, the power end of serial communication chip U3
16 feet meet the VCC of 5V regulated power supply, and are grounded after connecting with the 20th capacitor；5 feet of second serial COM2 connect 5V regulated power supply
GND.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710098199.XA CN106768368B (en) | 2017-02-23 | 2017-02-23 | A kind of wireless transmitter detector of railway infrared journal temperature detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710098199.XA CN106768368B (en) | 2017-02-23 | 2017-02-23 | A kind of wireless transmitter detector of railway infrared journal temperature detection system |
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| CN106768368B true CN106768368B (en) | 2018-12-25 |
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| US8145798B1 (en) * | 2000-05-01 | 2012-03-27 | Novell, Inc. | System and method for automatic provisioning of onsite networking services |
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|---|---|---|---|---|
| CN201757766U (en) * | 2010-06-10 | 2011-03-09 | 北京鑫宇士力通信科技有限公司 | Portable radio monitor |
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| CN203911918U (en) * | 2013-02-04 | 2014-10-29 | 优倍快网络公司 | Radio apparatus for emitting radio signals |
| CN204028264U (en) * | 2014-09-05 | 2014-12-17 | 国家电网公司 | A kind of temperature rise monitoring device of electronic product |
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| CN106768368A (en) | 2017-05-31 |
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