CN212723700U - Monitoring host for railway signal lighting monitoring system - Google Patents
Monitoring host for railway signal lighting monitoring system Download PDFInfo
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- CN212723700U CN212723700U CN202021548356.6U CN202021548356U CN212723700U CN 212723700 U CN212723700 U CN 212723700U CN 202021548356 U CN202021548356 U CN 202021548356U CN 212723700 U CN212723700 U CN 212723700U
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Abstract
The utility model discloses a railway signal monitoring system that lights a lamp is with monitoring host computer, including monitoring host computer and the MBUS communication module who is connected with the monitoring host computer, the monitoring host computer includes the host computer casing, sets up RS485 communication module, setting in the host computer casing are in electronic circuit board and integration in the host computer casing microcontroller, main power module and communication module on the electronic circuit board, communication module meets with microcontroller. The utility model discloses simple structure, reasonable in design to the monitoring extension that monitors is carried out to the operating current parameter of a plurality of signal lamps in the adaptation railway signal is lighted a lamp, is convenient for communicate with a plurality of monitoring extensions, and then is convenient for monitor the centralized management of extension.
Description
Technical Field
The utility model belongs to the technical field of the railway signal monitoring technology of lighting a lamp, especially, relate to a railway signal monitoring host for monitoring system of lighting a lamp.
Background
With the continuous improvement of national economy and national quality and the continuous acceleration and development of China's railways, China pays more and more attention to the aspect of safe driving of railways, and has more and more strict examination and verification on the technical advancement and quality reliability of equipment used by railways, and especially pays more attention to railway signal system equipment related to driving safety. The railway signal lighting system is a basic railway signal system for guaranteeing 'driving safety', and is inseparable from 'driving safety', so that the railway signal lighting system has important significance for the research of the railway signal lighting system.
At present, the light source of the existing railway signal lighting system in the railway market of China mainly takes signal lamps such as incandescent bulbs and halogen bulbs as main components, the service life of the signal lamp is short (1000 h-3000 h), the luminous efficiency is low (only 12% -18% can be converted into light energy, the rest is dissipated in the form of heat energy), and the color temperature is low (2700K-3100K), so that the situation that filaments are broken when the signal lamp is in use occurs occasionally. At present, the alarm for filament breakage of the incandescent lamp in the 6502 circuit is given by utilizing a second group of contacts of the filament switching relay DZJ to fall and switch on the alarm relay. If the monitoring of lighting can be changed from monitoring filament alarm to monitoring of daily working current parameters of the lighting equipment by the monitoring extension set, and meanwhile, the working current parameters detected by the remote monitoring extension set can be monitored in a centralized manner, rapid support can be provided for searching and analyzing signal lamp faults, and the working efficiency of field personnel is improved. Therefore, a monitoring host for a railway signal lighting monitoring system is needed at present, so as to adapt to a monitoring extension set for monitoring working current parameters of a plurality of signal lamps in railway signal lighting, effectively communicate with the monitoring extension sets, and facilitate centralized management of the monitoring extension sets.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a railway signal monitoring host for monitoring system of lighting a lamp, its simple structure, reasonable in design is convenient for communicate with a plurality of monitoring extensions through MBUS communication module, and then is convenient for monitor the centralized management of extension.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a railway signal monitoring system that lights a lamp uses monitoring host computer which characterized in that: the monitoring host comprises a host shell, an electronic circuit board arranged in the host shell, a microcontroller integrated on the electronic circuit board, a main power supply module and a communication module, wherein the microcontroller, the main power supply module and the communication module are integrated on the electronic circuit board, the communication module is connected with the microcontroller, and the output end of the MBUS communication module is connected with an MBUS bus.
The monitoring host machine for the railway signal lighting monitoring system is characterized in that: the communication module comprises a communication power supply module, an RS485 communication module, a CAN communication module and an Ethernet communication module, wherein the RS485 communication module, the CAN communication module and the Ethernet communication module are all connected with the microcontroller, and the communication power supply module supplies power to the RS485 communication module and the CAN communication module.
The monitoring host machine for the railway signal lighting monitoring system is characterized in that: the main power supply module comprises an AC/DC conversion module and a 5V-to-3.3V power supply module connected with the output end of the AC/DC conversion module.
The monitoring host machine for the railway signal lighting monitoring system is characterized in that: the Ethernet communication module comprises an Ethernet module, an isolation filter and a network communication interface which are sequentially connected, and the Ethernet module is connected with the microcontroller.
The monitoring host machine for the railway signal lighting monitoring system is characterized in that: the microcontroller is an STM32F407V microcontroller.
Compared with the prior art, the utility model has the following advantage:
1. the railway signal monitoring extension set is simple in structure and reasonable in design and is suitable for monitoring working current parameters of a plurality of signal lamps in railway signal lighting.
2. The utility model discloses set up MBUS communication module, MBUS communication module's output termination has the MBUS bus, is convenient for a plurality of monitoring extensions to connect in parallel on the MBUS bus, has realized the information interaction of outdoor a plurality of monitoring extensions and indoor monitoring host computer, in addition, the MBUS bus has the multiplexing of power cord and communication line, still is convenient for the monitoring extension to obtain the electricity from the MBUS bus; and secondly, the MBUS communication module is convenient for the parallel connection of a plurality of outdoor monitoring extensions, so that the monitoring range is improved, the communication distance of an MBUS bus in the MBUS communication module is long, the integration level of each outdoor monitoring extension is improved, and the centralized monitoring is convenient.
3. The utility model discloses communication module includes RS485 communication module, CAN communication module and ethernet communication module among the monitoring host computer, through RS485 communication module and CAN communication module, realizes the wired connection of monitoring host computer and host computer, sets up the wireless connection that ethernet communication module realized monitoring host computer and host computer, ensures monitoring host computer and host computer data transmission's accuracy, through expanding different communication interface, has improved monitoring host computer's accommodation.
To sum up, the utility model discloses simple structure, reasonable in design to the monitoring extension that monitors is carried out to the operating current parameter of a plurality of signal lamps in the adaptation railway signal is lighted a lamp, is convenient for communicate with a plurality of monitoring extensions, and then is convenient for monitor the centralized management of extension.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit block diagram of the monitoring host of the present invention.
Fig. 3 is a schematic circuit diagram of the power module of the present invention for converting 5V to 3.3V.
Fig. 4 is a schematic circuit diagram of the communication power supply module of the present invention.
Fig. 5 is the circuit schematic diagram of the RS485 communication module of the present invention.
Fig. 6 is a schematic circuit diagram of the CAN communication module of the present invention.
Fig. 7 is a schematic circuit diagram of the ethernet module, the isolation filter, and the network communication interface according to the present invention.
Fig. 8 is a schematic circuit diagram of the MBUS communication module of the present invention.
Description of reference numerals:
1-monitoring the host computer; 1-a microcontroller; 1-2-AC/DC conversion module;
a power supply module for converting 1-3-5V into 3.3V; 1-4-a communication power supply module;
1-5-RS 485 communication module; 1-6-ethernet module;
1-7-isolation filter; 1-8-a network communication interface;
1-9-CAN communication module; 3-MBUS communication module.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model discloses a monitor 1 and the MBUS communication module 3 of being connected with monitor 1, monitor 1 includes the host computer casing, sets up electronic circuit board in the host computer casing and integrated microcontroller 1-1, main power module and communication module on the electronic circuit board, communication module meets with microcontroller 1-1, the output termination of MBUS communication module 3 has the MBUS bus.
In this embodiment, the communication module includes a communication power module 1-4, an RS485 communication module 1-5, a CAN communication module 1-9, and an ethernet communication module, the RS485 communication module 1-5, the CAN communication module 1-9, and the ethernet communication module are all connected to the microcontroller 1-1, and the communication power module 1-4 provides power for the RS485 communication module 1-5 and the CAN communication module 1-9.
In this embodiment, the main power module includes an AC/DC conversion module 1-2 and a 5V to 3.3V power module 1-3 connected to an output terminal of the AC/DC conversion module 1-2.
In this embodiment, the ethernet communication module includes ethernet modules 1 to 6, isolation filters 1 to 7, and network communication interfaces 1 to 8, which are connected in sequence, and the ethernet modules 1 to 6 are connected to the microcontroller 1 to 1.
In this embodiment, the microcontroller 1-1 is an STM32F407V microcontroller.
In this embodiment, this monitoring host computer simple structure, reasonable in design, the monitoring extension that monitors is carried out to the operating current parameter of a plurality of signal lamps in the adaptation railway signal is lighted a lamp, is convenient for communicate with a plurality of monitoring extensions.
In the embodiment, the MBUS communication module 3 is arranged, the output end of the MBUS communication module 3 is connected with the MBUS bus, so that a plurality of monitoring extension sets can be conveniently connected to the MBUS bus in parallel, information interaction between the outdoor monitoring extension sets and the indoor monitoring host is realized, in addition, the MBUS bus has multiplexing of a power line and a communication line, and the monitoring extension sets can obtain electricity from the MBUS bus conveniently; and secondly, the MBUS communication module is convenient for the parallel connection of a plurality of outdoor monitoring extensions, so that the monitoring range is improved, the communication distance of an MBUS bus in the MBUS communication module is long, the integration level of each outdoor monitoring extension is improved, and the centralized monitoring is convenient.
In this embodiment, set up RS485 communication module, CAN communication module and ethernet communication module in monitoring host 1, through RS485 communication module and CAN communication module, realize the wired connection of monitoring host and host computer, set up ethernet communication module and realize the wireless connection of monitoring host and host computer, ensure monitoring host and host computer data transmission's accuracy, through expanding different communication interface, improved monitoring host's accommodation.
In the embodiment, when the MBUS communication module is actually used, the MBUS communication module 3 is connected with the MBUS bus, so that the MBUS bus is adopted, the anti-interference performance of a transmission signal is high, and the transmission distance and node output are large; in addition, the monitoring extension connected with the MBUS bus can obtain a power supply from the MBUS bus, so that the power supply is provided for the monitoring extension, and the current monitoring extension is prevented from getting power from a lighting circuit.
In this embodiment, the AC/DC conversion module 1-2 can refer to the AC-DC power module of TP20AU220T05D24W, and outputs +5V power, +24V power, and-24V power.
As shown in fig. 3, in this embodiment, a 5V to 3.3V power module 1-3 includes a chip TPS54336ADDA, a1 st pin of the chip TPS54336ADDA is connected to one end of a capacitor C11, a 3 rd pin of the chip TPS54336ADDA is divided into two paths, one path is connected to the other end of the capacitor C11, and the second path is connected to one end of an inductor L31; the 5 th pin of the chip TPS54336ADDA is divided into two paths, one path is grounded through a resistor R77, and the other path is connected with one end of a resistor R267; the other end of the resistor R266 is divided into two paths, one path is connected with the other end of the inductor L31, and the other path is grounded through a capacitor C98 and a capacitor C77 which are connected in parallel; the connecting end of the other end of the resistor R267 and the other end of the inductor L31 is a 3.3V power supply output end, the 4 th pin and the 9 th pin of the chip TPS54336ADDA are grounded, the 8 th pin of the chip TPS54336ADDA is grounded through a capacitor C97, the 6 th pin of the chip TPS54336ADDA is divided into two paths, one path is grounded through a resistor R27 and a capacitor C21 which are connected in series, and the other path is grounded through a capacitor C23; the 7 th pin of the TPS54336ADDA of the chip is divided into two paths, one path is grounded to the +5V power output end through a resistor R26, and the other path is grounded through a resistor R23; the 2 nd pin of the chip TPS54336ADDA is divided into two paths, one path is connected with the +5V power output end, and the other path is grounded through a capacitor C96 and a capacitor C243 which are connected in parallel.
In this embodiment, in actual use, the 3.3V power supply supplies power to the microcontroller 1-1 and other power modules in the monitoring host 1.
As shown in fig. 4, in this embodiment, the communication power module 1-4 includes a chip B0505S-1WR2, the 1 st pin of the chip B0505S-1WR2 is grounded, the 2 nd pin of the chip B0505S-1WR2 is divided into two paths, one path is grounded through a capacitor C248, and the other path is connected to a +5V power output terminal; the 3 rd pin of the chip B0505S-1WR2 is a 485_ GND output end, the 4 th pin of the chip B0505S-1WR2 is divided into two paths, one path is grounded through a capacitor C250 and a capacitor C249 which are connected in parallel, and the other path is a VCC _485 power output end.
In this embodiment, the VCC _485 power output terminal supplies power to the 5V power supply of the RS485 communication module 1-5 and the CAN communication module 1-9.
In this embodiment, the communication power supply modules 1 to 4 are arranged to output a VCC _485 power supply output end to supply power to the 16 th pin of the chip ADM2491E and the 8 th pin of the chip ISO1050, so that the RS485 communication modules 1 to 5 and the CAN communication modules 1 to 9 are isolated from the microcontroller 1 to 1 by the communication power supply modules 1 to 4, and the safety of the microcontroller 1 to 1 is improved.
As shown in fig. 5, in this embodiment, the RS485 communication module 1-5 includes a chip ADM2491E, a pin 1 of the chip ADM2491E is divided into two paths, one path is connected to a 3.3V power output terminal, and the other path is grounded through a capacitor C245 and a capacitor C247 which are connected in parallel; the 2 nd pin and the 8 th pin of the chip ADM2491E are grounded, the 3 rd pin of the chip ADM2491E is connected with a PC7 pin of a microcontroller 1-1 through a resistor R285, the connection end of the 4 th pin and the 5 th pin of the chip ADM2491E is divided into two paths, one path is grounded through a resistor R411, the other path is connected with a PC8 pin of the microcontroller 1-1 through a resistor R286, the 6 th pin of the chip ADM 24E is connected with a PC6 pin of the microcontroller 1-1 through a resistor R287, the connection end of the 11 th pin and the 14 th pin of the chip ADM2491E is divided into four paths, the first path is connected with a VCC _485 power supply output end through a resistor R412, one end of a second path resistor R414, one end of a third path resistor R413 and one end of a fourth path are connected with one end of a bidirectional diode D; the connecting ends of the 12 th pin and the 13 th pin of the chip ADM2491E are divided into four paths, the first path is connected with the other end of the resistor R414, the second path is connected with the 485_ GND output end through the resistor R415, the third path is connected with one end of the resistor R33, and the fourth path is connected with the other end of the bidirectional diode D43; the other end of the resistor R413 is a 485A output end, the other end of the resistor R33 is an RS485B output end, the connection end of the 9 th pin and the 15 th pin of the chip ADM2491E is connected with the 485_ GND output end, the 16 th pin of the chip ADM2491E is divided into two paths, one path is connected with the VCC _485 power supply output end, and the other path is connected with the 485_ GND output end through a capacitor C83 and a capacitor C246 which are connected in parallel.
In this embodiment, in the actual connection process, the 485A output end and the RS485B output end are connected with the 485 interface of the upper computer through the 485 bus.
In this embodiment, the RS485 communication module 1-5 adopts a chip ADM2491E, which is an isolated RS-485 transceiver, and has good stability and thermal shutdown protection.
As shown in fig. 6, in this embodiment, the CAN communication module 1-9 includes a chip ISO1050, a pin 1 of the chip ISO1050 is connected to a power output terminal of 3.3V, a pin 2 of the chip ISO1050 is connected to one end of a resistor R281, the other end of the resistor R281 is divided into two paths, one path is connected to a pin PA11 of the microcontroller 1-1, and the other path is connected to the power output terminal of 3.3V through a resistor R19; a pin 3 of the chip ISO1050 is connected with one end of a resistor R282, the other end of the resistor R282 is divided into two paths, one path is connected with a pin PA12 of the microcontroller 1-1, and the other path is connected with a 3.3V power supply output end through a resistor R25; the 4 th pin of the chip ISO1050 is grounded, the 5 th pin of the chip ISO1050 is connected with a 485_ GND output end, the 6 th pin of the chip ISO1050 is connected with one end of a resistor R24, the 7 th pin of the chip ISO1050 is connected with one end of a resistor R20, the 8 th pin of the chip ISO1050 is connected with a VCC _485 power output end, the other end of the resistor R24 is a CANL output end of a CAN communication module 1-9, and the other end of the resistor R20 is a CANH output end of the CAN communication module 1-9.
In this embodiment, the resistor R20 and the resistor R24 are provided to avoid reflection and interference of the transmission signal; the CAN communication modules 1-9 adopt a chip ISO1050, the signal transmission rate is high, the device is suitable for working in a severe environment, and the device has functions of series connection, overvoltage and grounding loss protection and overheating shutoff.
In this embodiment, the RS485 communication modules 1 to 5 and the CAN communication modules 1 to 9 are provided to extend the interface, and may be connected to the host computer through the 485 bus or the CAN bus, which improves the convenience of connection and the application range of the monitoring switchboard 1.
As shown in fig. 7, in this embodiment, the ethernet modules 1 to 6 include a chip DP83848IVV, the isolation filters 1 to 7 include a chip HX1188FNL, the network communication interfaces 1 to 8 are RJ45 interfaces, a 31 th pin of the chip DP83848IVV is divided into two paths, one path is connected to a 3.3V power output terminal through a resistor R45, and the other path is connected to a PC1 pin of the microcontroller 1 to 1; the 30 th pin of the chip DP83848IVV is divided into two paths, one path is connected with the 3.3V power output end through a resistor R46, and the other path is connected with a PA2 pin of the microcontroller 1-1; the 3 rd pin of the chip DP83848IVV is connected with the PB12 pin of the microcontroller 1-1 through a resistor R64, the 4 th pin of the chip DP83848IVV is connected with the PB13 pin of the microcontroller 1-1 through a resistor R65, the 2 nd pin of the chip DP83848IVV is connected with the PB11 pin of the microcontroller 1-1 through a resistor R63, the 5 th pin and the 6 th pin of the chip DP83848IVV are grounded, the 39 th pin of the chip DP83848IVV is divided into two paths, one path is connected with the 3.3V power output end through a resistor R174, and the other path is connected with the PA7 pin of the microcontroller 1-1 through a resistor R52; the 43 th pin of the chip DP83848IVV is connected with one end of a resistor R56, the other end of the resistor R56 is divided into two paths, one path is connected with the PC4 pin of the microcontroller 1-1, and the other path is grounded through a resistor R175; the 44 th pin of the chip DP83848IVV is connected with one end of a resistor R58, the other end of the resistor R58 is divided into two paths, one path is connected with the PC5 pin of the microcontroller 1-1, and the other path is grounded through a resistor R177; a 45 th pin of the chip DP83848IVV is grounded through a resistor R60, a 46 th pin of the chip DP83848IVV is grounded through a resistor R61, a 42 th pin of the chip DP83848IVV is connected with a 3.3V power output terminal through a resistor R54, a 27 th pin of the chip DP83848IVV is connected with a 3.3V power output terminal through a resistor R48, a 26 th pin of the chip DP 5892 IVV is connected with a cathode of a diode D34, an anode of the diode D34 is connected with a 3.3V power output terminal through a resistor R43, a 28 th pin of the chip DP83848IVV is connected with a cathode of a diode D6329, an anode of the diode D33 is connected with a 3.3V power output terminal through a resistor R44, a 34 th pin of the chip DP83848IVV is connected with one end of a resistor R49, and the other end of the resistor R49 is divided into two ways, one way is connected with a 3 rd pin of the Y1 and the other way is connected with a PA1 pin of the microcontroller 1-; the 2 nd pin of the crystal oscillator Y1 is grounded, the connecting ends of the 1 st pin and the 4 th pin of the crystal oscillator Y1 are divided into two paths, one path is grounded through a capacitor C61 and a capacitor C71 which are connected in parallel, and the other path is connected with a 3.3V power output end; the 24 th pin of the chip DP83848IVV is grounded through a resistor R51, the 29 th pin of the chip DP83848IVV is divided into two paths, one path is connected with a 3.3V power output end through a resistor R47, and the other path is connected with a PA0 pin of the microcontroller 1-1; the connection ends of an 18 th pin, a 37 th pin and a 23 th pin of the chip DP83848IVV are grounded through a capacitor C31, a capacitor C32, a capacitor C30 and a capacitor C29 which are connected in parallel, a 21 st pin of the chip DP83848IVV is connected with a 3.3V power output end through a resistor R53, a 20 th pin of the chip DP83848IVV is connected with a 3.3V power output end through a resistor R55, a 17 th pin of the chip DP83848IVV is divided into two paths, one path is connected with one end of the capacitor C35 through the resistor R176, and the other path is connected with a1 st pin of the chip HX1188 FNL; the 16 th pin of the chip DP83848IVV is divided into two paths, one path is connected with one end of a capacitor C35 through a resistor R178, and the other path is connected with the 3 rd pin of the chip HX1188 FNL; the other end of the capacitor C35 is grounded, the 14 th pin of the chip DP83848IVV is divided into two paths, one path is connected with the 3.3V power output end through a resistor R179, and the other path is connected with the 6 th pin of the chip HX1188 FNL; the 13 th pin of the DP83848IVV chip is divided into two paths, one path is connected with the 3.3V power output end through a resistor R180, and the other path is connected with the 8 th pin of the HX1188FNL chip; the 22 nd pin, the 32 nd pin and the 48 th pin of the chip DP83848IVV are all connected with a 3.3V power supply output end, and the 7 th pin of the chip DP83848IVV is connected with the 3.3V power supply output end through a resistor R66; the 16 th pin of the chip HX1188FNL is connected with the 4 th pin of the SLVU2.8-4BTG, the 14 th pin of the chip HX1188FNL is connected with the 3 rd pin of the SLVU2.8-4BTG, the 15 th pin of the chip HX1188FNL is connected with one end of a resistor R41, the 10 th pin of the chip HX1188FNL is connected with one end of a resistor R42, the connecting end of the other end of the resistor R41 and the other end of the resistor R42 is divided into three paths, one path is grounded through a capacitor C5, the other path is connected with one end of a resistor R40, and the other path is connected with one end of a resistor R39; the other end of the resistor R40 is connected with a connecting end of a7 th pin and an 8 th pin of an RJ45 interface, the other end of the resistor R39 is connected with a connecting end of a 4 th pin and a5 th pin of an RJ45 interface, a11 th pin of the chip HX1188FNL is connected with a2 nd pin of the chip SLVU2.8-4BTG, a 9 th pin of the chip HX1188FNL is connected with a1 st pin of the chip SLVU2.8-4BTG, an 8 th pin of the chip SLVU2.8-4BTG is connected with a 6 th pin of an RJ45 interface, a7 th pin of the chip SLVU2.8-4BTG is connected with a 3 rd pin of an RJ45 interface, a 6 th pin of the chip SLVU2.8-4BTG is connected with a2 nd pin of an RJ45 interface, and a5 th pin of the chip SLVU2.8-4BTG is connected with a1 st pin of an RJ 45.
In this embodiment, the ethernet modules 1 to 6 adopt the chip DP83848IVV, which has good robustness, good function, and low power consumption.
In this embodiment, the isolation filters 1 to 7 are provided because the ethernet modules 1 to 6 and the network communication interfaces 1 to 8 cannot be directly connected, and are used for blocking direct current and alternating current, so as to avoid interference of a dc level on a twisted pair with the operating characteristics of the chips DP83848IVV in the ethernet modules 1 to 6, and at the same time, limit high-frequency interference by using the passband of the isolation filters 1 to 7 themselves.
In the embodiment, the Ethernet modules 1 to 6, the isolation filters 1 to 7 and the network communication interfaces 1 to 8 are arranged, and the Internet is accessed through the network communication interfaces 1 to 8, so that the monitoring host 1 is wirelessly transmitted to an upper computer through the Ethernet modules 1 to 6, the isolation filters 1 to 7 and the network communication interfaces 1 to 8, wireless connection between the monitoring host 1 and the upper computer is realized, remote monitoring of the state of the monitoring host 1 is facilitated, and normal work of the monitoring host 1 is ensured.
As shown in fig. 8, in this embodiment, the MBUS communication module 3 includes a chip LM317, an operational amplifier OPA564, an operational amplifier TLE2021, an operational amplifier U30A with a model LM393A, and an operational amplifier U30B with a model LM393A, a 3 rd pin of the chip LM317 is connected to a +24V power output terminal, a1 st pin of the chip LM317 is divided into two paths, one path is grounded via a resistor R193, and the other path is connected to one end of a resistor R192; the No. 2 pin of the chip LM317 is divided into two paths, one path is connected with the other end of the resistor R192, and the other path is a 15V power output end; the 5 th pin of the operational amplifier OPA564 is divided into two paths, one path is grounded through a resistor R209, and the other end is connected with the 3 rd pin of a photocoupler U34 with the model of ACPL-217-56 BE; the 2 nd pin of the photoelectric coupler U34 is grounded, the 1 st pin of the photoelectric coupler U34 is connected with the PD8 pin of the microcontroller 1-1 through a resistor R202, the 4 th pin of the photoelectric coupler U34 is connected with one end of a resistor R191, the 6 th pin of the operational amplifier OPA564 is divided into two paths, one path is grounded through a resistor R210, and the other path is connected with one end of the resistor R205; the 9 th pin of the operational amplifier OPA564 is grounded through a resistor R200, and the connecting ends of the 1 st pin, the 10 th pin, the 11 th pin, the 13 th pin, the 14 th pin, the 20 th pin and the 21 st pin of the operational amplifier OPA564 are grounded; the connection end of the 15 th pin and the 16 th pin of the operational amplifier OPA564 is divided into five circuits, the first circuit is connected with the cathode of the diode D31, the other end of the second circuit resistor R205, the anode of the third circuit diode D32, the anode of the fourth circuit diode D30 and one end of the fifth circuit resistor R194; the connection ends of the No. 2 pin, the No. 19 pin, the No. 18 pin and the No. 17 pin of the operational amplifier OPA564 and the cathode of the diode D32 are all connected with a 15V power supply output end; the 4 th pin of the operational amplifier OPA564 is divided into two paths, one path is grounded through a resistor R199, and the other path is connected with a 15V power supply output end through a resistor R190; the anode of the diode D31 is grounded, the non-inverting input terminal of the operational amplifier TLE2021 is divided into two paths, one path of the parallel resistor R212, the capacitor C101 and the capacitor C102 is grounded, and the other path is connected to the cathode of the diode D35 through the resistor R204; the inverting input end of the operational amplifier TLE2021 is connected with one end of a resistor R206, the other end of the resistor R206 is divided into two paths, one path is grounded through a resistor R211 and a capacitor C100 which are connected in parallel, and the other path is connected with the cathode of a diode D30 through a resistor R203; the output end of the operational amplifier TLE2021 is divided into two paths, one path is connected with the inverting input end of the operational amplifier TLE2021 through a capacitor C95, and the other path is connected with one end of a resistor R197; the other end of the resistor R197 is divided into two paths, one path is connected with the 15V power output end through a capacitor C94 and a resistor R184 which are connected in parallel, and the other path is connected with the base electrode of the triode Q12; the emitter of the triode Q12 is connected with the 15V power output end through a resistor R185, a resistor R186, a resistor R187 and a resistor R188 which are connected in parallel; the non-inverting input end of the operational amplifier U30A is divided into three paths, one path is connected with the anode of the diode D38, the other path is connected with the cathode of the diode D37, and the third path is connected with one end of the resistor R196; the inverting input end of the operational amplifier U30A is divided into five paths, the first path is connected with the cathode of the diode D38, the second path is connected with the anode of the diode D37, the third path is grounded through the capacitor C93, the fourth path is grounded through the resistor R208, and the fifth path is connected with the cathode of the diode D36 through the resistor R201; the output end of the operational amplifier U30A is divided into two paths, one path is connected with the non-inverting input end of an operational amplifier U30A through a capacitor C92, the other path is connected with the 2 nd pin of a photoelectric coupler U33 with the model of ACPL-217-56BE, the 8 th pin of the operational amplifier U30A is connected with the 15V power supply output end, the 4 th pin of the operational amplifier U30A is grounded, the 1 st pin of the photoelectric coupler U33 is connected with the cathode of a diode D39 through a resistor R189, the anode of the diode D39 is connected with the connecting end of the 15 th pin and the 16 th pin of an operational amplifier OPA564, the 4 th pin of the photoelectric coupler U33 is connected with the 3.3V power supply output end, the 3 rd pin of the photoelectric coupler U33 is divided into two paths, one path is connected with the PD9 pin of the microcontroller 1-1, and the other path is grounded through a resistor R198;
the non-inverting input end of the operational amplifier U30B is connected with one end of a resistor R214, the other end of the resistor R214 is divided into two paths, one path is grounded through a capacitor C109, the other path is connected with one end of a resistor R213, the other end of the resistor R213, the anode of a diode D36, the other end of a resistor R196 and the connecting end of one end of the resistor R195 are connected with the 1 st pin of a two-end interface J11, the 2 nd pin of the two-end interface J11 is connected with a-24V power output end, the inverting input end of the operational amplifier U30B is divided into three paths, one path is grounded through a capacitor C110, the other path is grounded through a resistor R217, and the third path is connected with one; the other end of the resistor R194 is divided into four paths, the first path is connected with the anode of a diode D35, the second path is connected with the other end of the resistor R195, the third path is connected with the collector of a triode Q12, and the fourth path is connected with the other end of a resistor R216; the output end of the operational amplifier U30B is divided into two paths, one path is connected with the positive phase input end of the operational amplifier U30B through a capacitor C108, the other path is connected with the 2 nd pin of a photoelectric coupler U36 with the model of ACPL-217-56BE, the 1 st pin of the photoelectric coupler U36 is connected with the 15V power supply output end through a resistor R207, the 4 th pin of the photoelectric coupler U36 is connected with the 3.3V power supply output end, the 3 rd pin of the photoelectric coupler U36 is divided into two paths, one path is grounded through a resistor R215, and the other path is connected with the PA5 pin of the microcontroller 1-1.
In the embodiment, a controllable power module in the MBUS communication module 3 is formed by the chip LM317 and the operational amplifier OPA564, and the voltage on the MBUS bus 4 is changed under the control of the microcontroller 1-1 so as to realize the data sending and receiving functions; the operational amplifier TLE2021 is adopted to play a role in current expansion, so that high driving capability is provided for the MBUS bus 4, and the requirement of remote power supply is met; an operational amplifier U30A with the model number of LM393A is adopted to form a current detection module, so that the monitoring of the current on the MBUS bus 4 is realized, and the microcontroller 1-1 in the monitoring host 1 can conveniently receive data according to the change of the current on the MBUS bus 4; an operational amplifier U30B with the model number of LM393A is adopted to form a voltage detection module for monitoring the real-time voltage on the MBUS bus 4, and the purpose that the microcontroller 1-1 in the monitoring host 1 judges the fault of the MBUS bus 4 according to the voltage is achieved.
In this embodiment, in the actual connection process, the 1 st pin of the two-port interface J11 is the first output terminal of the MBUS communication module 3, and the 2 nd pin of the two-port interface J11 is the second output terminal of the MBUS communication module 3.
In this embodiment, in the actual connection process, one cable of the MBUS bus 4 is connected to the first output terminal of the MBUS communication module 3, and the other cable of the MBUS bus 4 is connected to the second output terminal of the MBUS communication module 3.
In this embodiment, it should be noted that, in actual use, values of components in each circuit may refer to values on a diagram.
The utility model discloses during the specific use, the working current value of each railway signal lamp that acquires in the monitoring extension passes through the MBUS bus and sends the working current value of each railway signal lamp, MBUS communication module 3 receives the working current value of each railway signal lamp through the MBUS bus and sends to microcontroller 1-1, microcontroller 1-1 acquires the working current value of each railway signal lamp, microcontroller 1-1 passes through RS485 communication module 1-5, CAN communication module 1-9 or ethernet communication module send to the host computer, thereby be convenient for through the host computer to the control of the working current value of each railway signal lamp, realize carrying out the remote monitoring of the monitoring extension that monitors to the working current parameter of a plurality of signal lamps in lighting a lamp to the railway signal.
To sum up, the utility model discloses simple structure, reasonable in design to the monitoring extension that monitors is carried out to the operating current parameter of a plurality of signal lamps in the adaptation railway signal is lighted a lamp, is convenient for communicate with a plurality of monitoring extensions, and then is convenient for monitor the centralized management of extension.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (5)
1. The utility model provides a railway signal monitoring system that lights a lamp uses monitoring host computer which characterized in that: including monitoring host computer (1) and MBUS communication module (3) of being connected with monitoring host computer (1), monitoring host computer (1) includes the host computer casing, sets up electronic circuit board in the host computer casing and integrated microcontroller (1-1), main power module and communication module on the electronic circuit board, communication module meets with microcontroller (1-1), the output termination of MBUS communication module (3) has the MBUS bus.
2. The monitoring host machine for a railway signal lighting monitoring system according to claim 1, wherein: the communication module comprises a communication power supply module (1-4), an RS485 communication module (1-5), a CAN communication module (1-9) and an Ethernet communication module, the RS485 communication module (1-5), the CAN communication module (1-9) and the Ethernet communication module are all connected with a microcontroller (1-1), and the communication power supply module (1-4) provides power for the RS485 communication module (1-5) and the CAN communication module (1-9).
3. The monitoring host machine for a railway signal lighting monitoring system according to claim 1, wherein: the main power supply module comprises an AC/DC conversion module (1-2) and a 5V-to-3.3V power supply module (1-3) connected with the output end of the AC/DC conversion module (1-2).
4. The monitoring host machine for a railway signal lighting monitoring system according to claim 2, wherein: the Ethernet communication module comprises Ethernet modules (1-6), isolation filters (1-7) and network communication interfaces (1-8) which are sequentially connected, and the Ethernet modules (1-6) are connected with the microcontroller (1-1).
5. The monitoring host machine for a railway signal lighting monitoring system according to claim 1, wherein: the microcontroller (1-1) is an STM32F407V microcontroller.
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| CN202021548356.6U CN212723700U (en) | 2020-07-30 | 2020-07-30 | Monitoring host for railway signal lighting monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593456A (en) * | 2021-07-20 | 2021-11-02 | 山西世恒铁路技术有限公司 | Movable multifunctional electronic signal board for railway and control system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593456A (en) * | 2021-07-20 | 2021-11-02 | 山西世恒铁路技术有限公司 | Movable multifunctional electronic signal board for railway and control system and control method thereof |
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