CN111206461A - Switch snow melt control circuit - Google Patents
Switch snow melt control circuit Download PDFInfo
- Publication number
- CN111206461A CN111206461A CN201811402074.2A CN201811402074A CN111206461A CN 111206461 A CN111206461 A CN 111206461A CN 201811402074 A CN201811402074 A CN 201811402074A CN 111206461 A CN111206461 A CN 111206461A
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- China
- Prior art keywords
- snow
- snow melting
- wireless
- control
- transmitting module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000005413 snowmelt Substances 0.000 title claims description 12
- 238000002844 melting Methods 0.000 claims abstract description 62
- 230000008018 melting Effects 0.000 claims abstract description 61
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000005485 electric heating Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to a turnout snow melting technology used in the rail transit industry, in particular to a turnout snow melting control circuit, which is characterized in that: the method comprises the following steps: the snow melting device comprises a rain and snow sensor (1), a photoelectric coupler (2), a voltage stabilizing IC (3), a temperature sensor (4), a wireless transmitting module control IC (5), a wireless transmitting module (6), a wireless receiving module (7), a wireless receiving control IC (8) and snow melting equipment (9); the rain and snow sensor (1) is a multi-electrode multi-part cross short circuit structure formed by two conductors, one path of the two conductor electrodes is electrically connected with a power supply voltage through a resistor R1, and the other path of the two conductor electrodes is connected to the negative end of the power supply through a light-emitting tube; the power supply voltage is divided into three paths, the second path outputs 3V-5V working voltage through the voltage stabilizing IC (3) and supplies the working voltage to the wireless transmitting module control IC (5), and the third path supplies the working voltage to the wireless transmitting module (6). The switch snow melting control circuit is used for improving the safety and reliability of snow melting equipment and facilitating construction.
Description
Technical Field
The invention belongs to a turnout snow melting technology used in the rail transit industry, and particularly relates to a turnout snow melting control circuit.
Background
The turnout snow melting technology is characterized in that a rail bottom rain and snow sensor is installed on a turnout to melt turnout snow through metal resistance heating, the safe operation of a rail is realized, a rail bottom rain and snow monitor mainly monitors rain and snow, signals are transmitted to a PCU (Power control Unit) control snow melting device to be heated, a common rain and snow monitor is mainly installed beside a railway to monitor whether snow exists on the turnout, a turnout snow melting control circuit monitors the rain and snow sensor installed on the rail bottom, when snow exists, two electrodes of the sensor are in short circuit, and triggered signals are transmitted to the PCU control snow melting device to be heated.
The control circuit is characterized in that the two electrodes are short-circuited only when rain or snow exists, and the control circuit is simple in structure, so that signals are easy to trigger, and false starting is often caused.
The PCU that otherwise controls the snow melting apparatus is located at a distance from the sensor, usually by a wired connection, and the interfering electrical signal may also cause false activation of the snow melting apparatus in snow-free days.
Disclosure of Invention
The invention aims to provide a switch snow melting control circuit, which is used for improving the safety and reliability of snow melting equipment and simultaneously facilitating construction.
The technical scheme of the invention is as follows: relate to a switch snow melt control circuit, characterized by: the method comprises the following steps: the device comprises a rain and snow sensor, a photoelectric coupler, a voltage stabilizing IC, a temperature sensor, a wireless transmitting module control IC, a wireless transmitting module, a wireless receiving control IC and snow melting equipment; the rain and snow sensor is a multi-electrode multi-part cross short circuit structure formed by two conductors, one path of the two conductor electrodes is electrically connected with a power supply voltage through a resistor R1, and the other path of the two conductor electrodes is connected to the negative end of the power supply through a light-emitting tube; the power supply voltage is divided into three paths, the second path outputs 3V-5V working voltage to the wireless transmitting module control IC through the voltage stabilizing IC, and the third path is provided for the wireless transmitting module; the wireless transmitting module control IC at least comprises three interfaces; the first analog-digital conversion interface, the second analog-digital conversion interface, the control port of the wireless transmitting module and the third snow melting state signal interface; the analog-digital conversion interface is electrically connected with the output end of the temperature sensor, and the wireless transmitting module controls the IC to convert the field temperature signal of the temperature sensor into an electric signal; the control port is used for sending out an electric signal converted from a field temperature signal of the temperature sensor; the snow melting state signal interface is used for receiving a snow melting state signal; the wireless receiving module, the wireless receiving control IC and the snow melting equipment form a heating strip heating snow removal field circuit, the wireless receiving module is in radio connection with the wireless transmitting module, the wireless receiving module and the wireless transmitting module separate two different working places, the wireless receiving module is electrically connected with the wireless receiving control IC, the wireless receiving control IC receives snow melting state signals of the rain and snow sensor through the wireless receiving module, the snow melting state signals are expressed by temperature signals, and the authenticity of the snow melting state signals is further judged through receiving the temperature signals; when the temperature is lower than 0 ℃, the wireless receiving control IC controls the snow melting equipment to work through the I/O to melt snow on the turnout; when the temperature is higher than 0 ℃, the wireless receiving control IC controls the snow melting equipment to be out of operation through the I/O.
The voltage stabilizing IC is a 3-5V voltage stabilizing IC and is used for converting an input 24V voltage into a 3-5V voltage and outputting the voltage.
The temperature sensor is AD590, and 1uA of current is output when the temperature changes once, so that the output end of the AD590 is electrically connected with the negative end of the power supply through a standard resistor RO, the resistance value of the standard resistor RO is 1K, and 1mV of voltage change is generated on the standard resistor RO when the temperature changes once.
The frequency of the wireless transmitting module is 315MHz or 433 MHz.
The snow melting state signal interface is a photoelectric triode, an emitting electrode of the photoelectric triode is connected with the negative end of a power supply, a collecting electrode of the photoelectric triode is electrically connected with the output end of the voltage stabilizing IC through a resistor R2, and a photoelectric receiving end of the photoelectric triode is connected with the light emitting tube in an optical mode.
The photoelectric receiving end of the phototriode is connected with the light emitting tube in an optical way through an optical fiber medium to realize photoelectric connection.
The snow melting equipment is an electric heating strip, the electric heating strip is connected to a turnout through a tool, the electric heating strip is connected with the turnout through an insulating heat conductor in a heat conduction mode, the electric heating strip is electrically connected with a power supply through a relay switch, and the relay switch is electrically connected with an I/O port of a wireless receiving control IC.
The working principle and the advantages of the invention are as follows: the snow melting state information of the turnout is received and transmitted in a temperature mode, authenticity and necessity of the snow melting state information of the turnout are further identified through the temperature signal, the environment temperature is high, snow melting of the turnout cannot be frozen, and snow on the turnout can be rapidly melted by heating for no time or short time; the snow melting of the turnout can be frozen due to low ambient temperature, so that long time or high power work is required for melting the snow of the turnout.
The invention is further described below with reference to the drawings.
Drawings
FIG. 1 is a schematic circuit diagram of an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram according to another embodiment of the present invention;
fig. 3 is a circuit schematic diagram according to a third embodiment of the present invention.
In the figure, 1, a rain and snow sensor; 2. a photoelectric coupler; 3. a voltage stabilization IC; 4. a temperature sensor AD 590; 5. a wireless transmission module control IC; 6. a wireless transmitting module; 7. a wireless receiving module; 8. a wireless reception control IC; 9. snow melting equipment.
Detailed Description
As shown in fig. 1, the present invention provides a switch snow-melting control circuit, which is characterized in that: the device comprises a rain and snow sensor 1, a photoelectric coupler 2, a voltage stabilizing IC3, a temperature sensor 4, a wireless transmitting module control IC5, a wireless transmitting module 6, a wireless receiving module 7, a wireless receiving control IC8 and snow melting equipment 9; the rain and snow sensor 1 is a multi-electrode multi-part cross short circuit structure formed by two conductors, one path of the two conductor electrodes is electrically connected with a power supply voltage through a resistor R1, and the other path of the two conductor electrodes is connected to the negative end of the power supply through a light-emitting tube; the power supply voltage is divided into three paths, the second path outputs 3V-5V working voltage through the voltage stabilizing IC3 to be supplied to the wireless transmitting module control IC5, and the third path is supplied to the wireless transmitting module 6; the wireless transmitting module control IC5 at least comprises a three-way interface; the first analog-digital conversion interface, the second analog-digital conversion interface, the control port of the wireless transmitting module 6 and the third snow melting state signal interface; the analog-digital conversion interface is used for being electrically connected with the output end of the temperature sensor 4, and the wireless transmitting module control IC5 converts the field temperature signal of the temperature sensor 4 into an electric signal; the control port is used for sending out an electric signal converted from the field temperature signal of the temperature sensor 4; the snow melting state signal interface is used for receiving a snow melting state signal; the wireless receiving module 7, the wireless receiving control IC8 and the snow melting equipment 9 form a heating strip heating snow melting field circuit, the wireless receiving module 7 is in wireless connection with the wireless transmitting module 6, the wireless receiving module 7 and the wireless transmitting module 6 separate two different working places, the wireless receiving module 7 is electrically connected with the wireless receiving control IC8, the wireless receiving control IC8 receives snow melting state signals of the rain and snow sensor 1 through the wireless receiving module 7, the snow melting state signals are expressed by temperature signals, and the authenticity of the snow melting state signals is further judged through receiving the temperature signals. When the temperature is lower than 0 ℃, the wireless receiving control IC8 controls the snow melting equipment 9 to work through the I/O to melt snow on the turnout; when the temperature is higher than 0 ℃, the wireless receiving control IC8 controls the snow melting device 9 to be not operated through the I/O.
The voltage stabilizing IC3 is a 3-5V voltage stabilizing IC3, which is used for converting the input 24V voltage into 3-5V voltage and outputting the voltage.
The temperature sensor 4 is an AD590, and 1uA of current is output when the temperature changes once, so that the output end of the AD590 is electrically connected with the negative end of the power supply through a standard resistor RO, the resistance value of the standard resistor RO is 1K, and therefore, 1mV of voltage change is generated on the standard resistor RO when the temperature changes once.
The frequency of the wireless transmitting module 6 is 315MHz or 433 MHz.
The snow melting state signal interface is a photoelectric triode, an emitting electrode of the photoelectric triode is connected with the negative end of a power supply, a collecting electrode of the photoelectric triode is electrically connected with the output end of the voltage stabilizing IC3 through a resistor R2, and a photoelectric receiving end of the photoelectric triode is connected with the light emitting tube in an optical mode.
The photoelectric receiving end of the phototriode is connected with the light emitting tube in an optical way through an optical fiber medium to realize photoelectric connection.
The working principle and the advantages of the invention are as follows: the snow melting state information of the turnout is received and transmitted in a temperature mode, authenticity and necessity of the snow melting state information of the turnout are further identified through the temperature signal, the environment temperature is high, snow on the turnout cannot be frozen, and snow on the turnout can be rapidly melted by heating for no time or short time. The snow on the turnout can be frozen due to low ambient temperature, so that the turnout snow can be melted by working for a long time or with high power.
Example 2
As shown in fig. 2, the difference from embodiment 1 is that the optical connection between the photoelectric receiving end of the phototriode and the light emitting tube is realized by optical fiber medium; example 2 the other circuits are the same as in example 1.
Example 3
As shown in fig. 3, the difference from embodiment 1 is that the temperature sensor 4 is a thermistor; example 3 the other circuits are the same as in example 1.
Claims (7)
1. A switch snow melt control circuit, characterized by: the snow melting device comprises a rain and snow sensor (1), a photoelectric coupler (2), a voltage stabilizing IC (3), a temperature sensor (4), a wireless transmitting module control IC (5), a wireless transmitting module (6), a wireless receiving module (7), a wireless receiving control IC (8) and snow melting equipment (9); the rain and snow sensor (1) is a multi-electrode multi-part cross short circuit structure formed by two conductors, one path of the two conductor electrodes is electrically connected with a power supply voltage through a resistor R1, and the other path of the two conductor electrodes is connected to the negative end of the power supply through a light-emitting tube; the power supply voltage is divided into three paths, the second path outputs 3V-5V working voltage to the wireless transmitting module control IC (5) through the voltage stabilizing IC (3), and the third path is provided for the wireless transmitting module (6); the wireless transmitting module control IC (5) at least comprises a three-way interface; the first path of analog-digital conversion interface, the second path of analog-digital conversion interface, the control port of the wireless transmitting module (6) and the third path of snow melting state signal interface; the analog-digital conversion interface is electrically connected with the output end of the temperature sensor (4), and the wireless transmitting module control IC (5) converts the field temperature signal of the temperature sensor (4) into an electric signal; the control port is used for sending out an electric signal converted from a field temperature signal of the temperature sensor (4); the snow melting state signal interface is used for receiving a snow melting state signal; the wireless receiving module (7), the wireless receiving control IC (8) and the snow melting equipment (9) form a heating strip heating snow melting field circuit, the wireless receiving module (7) is in wireless connection with the wireless transmitting module (6), the wireless receiving module (7) and the wireless transmitting module (6) separate two different workplaces, the wireless receiving module (7) is in electrical connection with the wireless receiving control IC (8), the wireless receiving control IC (8) receives snow melting state signals of the rain and snow sensor (1) through the wireless receiving module (7), the snow melting state signals are expressed through temperature signals, and authenticity of the snow melting state signals is further judged through receiving the temperature signals; when the temperature is lower than 0 ℃, the wireless receiving control IC (8) controls the snow melting equipment (9) to work through the I/O to melt snow on the turnout; when the temperature is higher than 0 ℃, the wireless receiving control IC (8) controls the snow melting equipment (9) to not work through I/O.
2. The switch snow melt control circuit of claim 1, wherein: the voltage stabilizing IC (3) is a 3-5V voltage stabilizing IC (3) and is used for converting an input 24V voltage into a 3-5V voltage and outputting the voltage.
3. The switch snow melt control circuit of claim 1, wherein: the temperature sensor (4) is AD590, the output end of the AD590 is electrically connected with the negative end of the power supply through a standard resistor RO, and the resistance value of the standard resistor RO is 1K.
4. The switch snow melt control circuit of claim 1, wherein: the frequency of the wireless transmitting module (6) is 315MHZ or 433 MHZ.
5. The switch snow melt control circuit of claim 1, wherein: the snow melting state signal interface is a photoelectric triode, an emitting electrode of the photoelectric triode is connected with the negative end of a power supply, a collecting electrode of the photoelectric triode is electrically connected with the output end of the voltage stabilizing IC (3) through a resistor R2, and a photoelectric receiving end of the photoelectric triode is connected with the light emitting tube in an optical mode.
6. The switch snow melt control circuit of claim 5, wherein: the photoelectric receiving end of the phototriode is connected with the light emitting tube in an optical way through an optical fiber medium to realize photoelectric connection.
7. The switch snow melt control circuit of claim 5, wherein: snow melt equipment (9) be the electrical heating strip, the electrical heating strip passes through the frock and connects on the switch, the electrical heating strip passes through the insulating heat conductor and is connected with the switch heat conduction, the electrical heating strip passes through relay switch and is connected with the power electricity, relay switch is connected with the IO mouth electricity of wireless reception control IC (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811402074.2A CN111206461A (en) | 2018-11-22 | 2018-11-22 | Switch snow melt control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811402074.2A CN111206461A (en) | 2018-11-22 | 2018-11-22 | Switch snow melt control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111206461A true CN111206461A (en) | 2020-05-29 |
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ID=70785838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811402074.2A Pending CN111206461A (en) | 2018-11-22 | 2018-11-22 | Switch snow melt control circuit |
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| CN (1) | CN111206461A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204753272U (en) * | 2015-04-26 | 2015-11-11 | 华东交通大学 | Absorption formula railway switch snow melt intelligence device |
| CN206100477U (en) * | 2016-09-22 | 2017-04-12 | 北京安润通电子技术开发有限公司 | Switch snow melt temperature power safety control module |
| CN106638443A (en) * | 2016-12-30 | 2017-05-10 | 河南辉煌科技股份有限公司 | Intelligent railway turnout snow melting system |
| CN107815933A (en) * | 2017-10-23 | 2018-03-20 | 胡军 | A kind of railway switch tongue and stock rail ice, snow detection and thawing apparatus |
| CN207159918U (en) * | 2017-08-17 | 2018-03-30 | 中铁电化（西安）通号设备有限公司 | A kind of melting snow at railroad switches emergency flight control system based on radio communication |
| CN108221837A (en) * | 2018-02-28 | 2018-06-29 | 天津中德应用技术大学 | Melting snow on turnout junction device and method of work based on the microprocessor of 16 bit |
| CN209162547U (en) * | 2018-11-22 | 2019-07-26 | 西安铁路信号有限责任公司 | A kind of melting snow on turnout junction control device |
-
2018
- 2018-11-22 CN CN201811402074.2A patent/CN111206461A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204753272U (en) * | 2015-04-26 | 2015-11-11 | 华东交通大学 | Absorption formula railway switch snow melt intelligence device |
| CN206100477U (en) * | 2016-09-22 | 2017-04-12 | 北京安润通电子技术开发有限公司 | Switch snow melt temperature power safety control module |
| CN106638443A (en) * | 2016-12-30 | 2017-05-10 | 河南辉煌科技股份有限公司 | Intelligent railway turnout snow melting system |
| CN207159918U (en) * | 2017-08-17 | 2018-03-30 | 中铁电化（西安）通号设备有限公司 | A kind of melting snow at railroad switches emergency flight control system based on radio communication |
| CN107815933A (en) * | 2017-10-23 | 2018-03-20 | 胡军 | A kind of railway switch tongue and stock rail ice, snow detection and thawing apparatus |
| CN108221837A (en) * | 2018-02-28 | 2018-06-29 | 天津中德应用技术大学 | Melting snow on turnout junction device and method of work based on the microprocessor of 16 bit |
| CN209162547U (en) * | 2018-11-22 | 2019-07-26 | 西安铁路信号有限责任公司 | A kind of melting snow on turnout junction control device |
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