CN220974181U - Railway crossing alarm device - Google Patents
Railway crossing alarm device Download PDFInfo
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- CN220974181U CN220974181U CN202322648520.0U CN202322648520U CN220974181U CN 220974181 U CN220974181 U CN 220974181U CN 202322648520 U CN202322648520 U CN 202322648520U CN 220974181 U CN220974181 U CN 220974181U
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Abstract
The utility model relates to a railway crossing alarm device, which comprises a crossing control box, wherein the crossing control box is arranged in a railway crossing operation room, a railway signal machine I and a railway signal machine II respectively comprise a signal lamp I and a signal lamp II, a highway signal machine I and a highway signal machine II respectively comprise a signal lamp III, a signal lamp IV, a signal lamp V and a loudspeaker, and the railway signal machine I, the railway signal machine II, the highway signal machine I and the highway signal machine II are respectively connected with the crossing control box. The utility model has the advantages that: the control circuit adopts the contactor and the flashing relay, so that a crossing operator can realize the switching of the signal lamp by switching on/off the power supply of the contactor and the flashing relay through the second open/close circuit breaker, and the control circuit is safe, reliable, simple in circuit, convenient to operate, convenient to maintain and visual; the soundboard is used for carrying out voice reminding when a train passes through the railway crossing, and has the advantages of simple structure, convenient operation and no need of maintenance.
Description
Technical Field
The utility model relates to the field of railway signal equipment control circuits, in particular to a railway crossing warning device.
Background
The railway transportation is an important component of steel mill transportation, in the railway transportation process, railway transportation sections are staggered with road sections, the staggered road junctions are called railway crossings, each railway crossing is provided with a crossing alarm host computer for warning that a train passes, after long-time use, the crossing alarm host computer has frequent faults, and once damaged, the crossing alarm host computer can only be replaced with a new one due to complex circuits and difficult maintenance, and the production and maintenance cost is increased.
Disclosure of Invention
The utility model aims to provide a railway crossing alarm device which is simple in circuit, convenient to operate, convenient to maintain and visual.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
the railway crossing warning device comprises a railway signal I, a railway signal II, a highway signal I and a highway signal II, wherein the railway signal I and the railway signal II are respectively arranged on two sides of a railway crossing parallel to rails, the highway signal I and the highway signal II are respectively arranged on sides of a road entering the railway crossing, the railway crossing warning device also comprises a crossing control box, the crossing control box is arranged in a railway crossing operation chamber, the railway signal I and the railway signal II respectively comprise a signal lamp I and a signal lamp II, the highway signal I and the highway signal II respectively comprise a signal lamp III, a signal lamp IV, a signal lamp V and a loudspeaker, and the railway signal I, the railway signal II, the highway signal I and the highway signal II are respectively connected with the crossing control box;
The road junction control box comprises a first breaker, a first control branch, a second control branch and a power transformer, wherein the first control branch and the power transformer which are connected in parallel are connected with an alternating current power supply I through the first breaker, the power transformer is used for providing an alternating current power supply II, the second control branch is connected with the alternating current power supply II, the first control branch comprises branches a-e which are connected in parallel, and the second control branch comprises a branch f and a branch h which are connected in parallel.
The branch a comprises a second circuit breaker and a coil of a contactor which are connected in series; the branch b comprises a normally closed auxiliary contact III and a signal lamp I of the contactor which are connected in series; the branch c comprises a normally open auxiliary contact IV of the contactor and a signal lamp II which are connected in series; the branch d comprises a switching power supply, the switching power supply is used for providing a direct current power supply, the loudspeaker is connected with the sound board, and the normally open auxiliary contact I of the contactor is connected with the input end of the sound box board in series; the branch e comprises a normally open auxiliary contact II of the contactor connected in series and a coil connection of the relay.
The branch f comprises a normally open auxiliary contact III of a contactor connected in series and a branch p, the branch p is connected in parallel with a branch q, the branch p comprises a normally closed contact of a relay connected in series and a signal lamp III, and the branch q comprises a normally open contact of the relay connected in series and a signal lamp IV; the branch g comprises a normally closed auxiliary contact four and a signal lamp five of contactors connected in series.
The relay is a flashing relay.
The sound board comprises a main control module, a voice circuit, a power amplification circuit and a power supply circuit, wherein the power supply circuit is used for providing VCC working power for the main control module, the voice circuit and the power amplification circuit, the voice circuit comprises a voice module, a digital-to-analog conversion circuit, a memory and an amplifier circuit, the voice module is respectively and bidirectionally connected with the main control module and the memory, the output end of the voice module is connected with the input end of the digital-to-analog conversion circuit, the output end of the digital-to-analog conversion circuit is connected with the input end of the amplifier circuit, the output end of the amplifier circuit is connected with the input end of the power amplification circuit, and the output of the power amplification circuit is connected with a loudspeaker.
The voice module is MCU singlechip, the amplifier circuit comprises an operational amplifier, the power amplifier circuit comprises an audio amplifier, the memory adopts FLASH memory or EEPROM memory, the power circuit comprises a power module and a voltage stabilizer, the output end of the power module is connected with the voltage stabilizer, the output end of the voltage stabilizer is used for providing VCC working power supply, the input end of the power module is connected with a direct current power supply, and the digital-to-analog conversion circuit comprises a digital-to-analog converter and an operational amplifier which are connected in series.
Compared with the prior art, the utility model has the beneficial effects that:
the control circuit adopts the contactor KM and the flashing relay KA, so that a crossing operator can obtain/lose electricity from the contactor KM and the flashing relay KA through the on/off breaker Q2, the switching of the signal lamp is realized, and the control circuit is safe and reliable, simple in circuit, convenient to operate, convenient to maintain and visual; the soundboard is used for carrying out voice reminding when a train passes through the railway crossing, and has the advantages of simple structure, convenient operation and no need of maintenance.
Drawings
Fig. 1 is a schematic diagram of a railway crossing warning device.
Fig. 2 is a schematic diagram of a voice circuit configuration.
Fig. 3 is a schematic diagram of an embodiment voice module.
Fig. 4 is a schematic diagram of a digital-to-analog conversion circuit and an amplifier.
Fig. 5 is a schematic diagram of a memory principle.
Detailed Description
The present utility model will be described in detail below with reference to the drawings of the specification, but it should be noted that the practice of the present utility model is not limited to the following embodiments.
The following examples are given by way of illustration of detailed embodiments and specific procedures based on the technical scheme of the present utility model, but the scope of the present utility model is not limited to the following examples. The methods used in the examples described below are conventional methods unless otherwise specified.
[ Example 1]
The railway crossing warning device comprises a crossing control box, a railway signal machine I, a railway signal machine II, a highway signal machine I and a highway signal machine II, wherein the railway signal machine I and the railway signal machine II are respectively arranged on two sides of a railway crossing parallel to rails, the highway signal machine I and the highway signal machine II are respectively arranged on two sides of a road entering the railway crossing, the crossing control box is arranged in a railway crossing operation room, the railway signal machine I and the railway signal machine II both comprise a signal lamp HR1 and a signal lamp HL1, the highway signal machine I and the highway signal machine II both comprise a signal lamp HR2, a signal lamp HR3, a signal lamp HW and a soundboard, the signal lamp HR1 is a red signal lamp, the signal lamp HL1 is a green signal lamp, the signal lamp HR2 and the signal lamp HR3 are red signal lamps, and the signal lamp HW is a white signal lamp; signal lamp HR1 comprises signal lamp HR1-1 and signal lamp HR1-2, and signal lamp HR1-1 and signal lamp HR1-2 are connected in parallel; the signal lamp HL1 comprises a signal lamp HL1-1 and a signal lamp HL1-2, and the signal lamp HL1-1 and the signal lamp HL1-2 are connected in parallel; the sound board comprises a first sound board and a second sound board which are connected in parallel and have the same structure; signal HR2 includes signal HR2-1 and signal HR2-2, signal HR3 includes signal HR3-1 and signal HR3-2, and signal HW includes signal HW-1 and signal HW-2; the first railway signal machine comprises a signal lamp HR1-1 and a signal lamp HL1-1, the second railway signal machine comprises a signal lamp HR1-2 and a signal lamp HL1-2, the first road signal machine comprises a signal lamp HR2-1, a signal lamp HR3-1, a signal lamp HW-1 and a sound board I, and the second road signal machine comprises a signal lamp HR2-2, a signal lamp HR3-2, a signal lamp HW-2 and a sound board II; the railway signal machine I, the railway signal machine II, the highway signal machine I and the highway signal machine II are connected with the road junction control box.
The road junction control box comprises a breaker Q1, a control branch I, a control branch II and a power transformer T, wherein the control branch I and the power transformer T are connected with an alternating current power supply AC380V through the breaker Q1, the power transformer T is used for providing an alternating current power supply AC12V, the control branch I is connected with the power transformer T in parallel, the control branch II is connected with the alternating current power supply AC12V, the control branch I comprises branches a-e connected in parallel, and the control branch II comprises a branch f and a branch h connected in parallel; the branch a comprises a coil of a circuit breaker Q2 and a contactor KM which are connected in series; the branch b comprises a normally closed auxiliary contact III of a contactor KM and a signal lamp HR1 which are connected in series; the branch c comprises a normally open auxiliary contact IV of the contactor KM and a signal lamp HL1 which are connected in series; the branch d comprises a switching power supply, the switching power supply is used for providing DC24V, the soundboard is connected with the DC24V, and the normally open auxiliary contact I of the contactor KM is connected with the input end of the sound box board; the branch e comprises a normally open auxiliary contact II of the contactor KM connected in series and coil connection of a flicker relay KA; the branch f comprises a normally open auxiliary contact III of a contactor KM connected in series and a branch p, the branch p is connected in parallel with a branch q, the branch p comprises a normally closed contact of a scintillation relay KA and a signal lamp HR2 connected in series, and the branch q comprises a normally open contact of the scintillation relay KA and a signal lamp HR3 connected in series; the branch g comprises a normally closed auxiliary contact four of the contactor KM and a signal lamp HW connected in series.
The working process comprises the following steps:
The contactor KM adopts JZC1-44, the flicker relay KA adopts JSZ-2, and the contactor KM is used for controlling signal lights of railway annunciators and highway annunciators at railway crossings and driving a loudspeaker to give alarm sounds by using an acoustic board. When a train approaches a railway crossing, crossing operators turn on an alarm breaker switch Q2, a contactor KM coil is electrified, a KM normally open contact is turned on, and a KM normally closed contact is turned off, so that a railway signal red light is turned on to turn off a green light, a highway signal white light is turned off, a flashing relay KA coil is electrified to turn on a highway red light power supply, two red lights flash alternately, and a voice alarm starts to be played. When the vehicle passes, the road junction operator turns off the breaker switch Q2, the railway signal red light is lightened, the green light is extinguished, meanwhile, the highway signal white light is lightened, the red light is extinguished, the alarm is stopped, and the vehicle and pedestrians are allowed to pass through the road junction.
[ Example 2]
In this embodiment, the same as embodiment 1 is added with an acoustic board circuit, see fig. 2-5, on the basis of which the acoustic board comprises a main control module, a voice circuit, a power amplifying circuit and a power circuit, wherein the power circuit is used for providing VCC working power for the main control module, the voice circuit and the power amplifying circuit, the voice circuit comprises a voice module, a digital-to-analog conversion circuit, a memory and an amplifier circuit, the voice module is respectively connected with the main control module and the memory in a bidirectional manner, the input end of the digital-to-analog conversion circuit is connected with the output end of the voice module, the output end of the digital-to-analog conversion circuit is connected with the input end of the amplifier circuit, the output end of the power amplifying circuit is connected with a loudspeaker, and the digital-to-analog conversion circuit comprises a digital-to-analog converter.
The voice module and the main control module are MCU single-chip microcomputer, can adopt 8-bit, 16-bit and 32-bit single-chip microprocessor of any company, for example, the voice module can adopt model AT89C4051, the digital-to-analog converter mainly comprises integrated circuit D2, model DAC7512, the amplifier circuit comprises operational amplifier D3, model LM358, the power amplifying circuit comprises an audio amplifier D4, model TS4990, the memory D5 adopts FLASH memory or EEPROM memory, the memory model AT4096, the power circuit comprises a power module POW2 and a voltage stabilizer, the output end of the power module is connected with the voltage stabilizer, the output end of the voltage stabilizer is used for providing VCC working power supply, and the input end of the power module is connected with DC24V of the direct current power supply. The soundboard is used for carrying out voice reminding when a train passes through the railway crossing, and has the advantages of simple structure, convenient operation and no need of maintenance.
Working process or working principle:
The digital quantity of the voice information is stored in the memory (the specific memory stores the voice information for how long, the size of the memory and the data acquisition density are to be seen, the voice information in the main control module cannot exceed 90 seconds), the interface of the voice module and the memory adopts an SPI communication protocol to carry out two-way communication, when the voice module needs the information of the memory, the voice module firstly pulls down the chip selection CS MEM of the memory, then sends pulses to the memory through an SCK2 line, then sends commands and address data of the required information to the memory through an SDI1 line, and finally the memory sends the data stored in the address to the voice module through an SDO2 line. The voice module processes the digital voice information read from the memory, firstly pulls down the CSDA sheet line selection, then transmits the digital voice information to the digital-to-analog conversion circuit through the SCK1 and SDI1 lines, and the digital-to-analog conversion circuit converts the digital voice information into analog voice information to achieve voice information restoration. Since the analog voice signal subjected to the digital-to-analog conversion has no driving capability, it is necessary to amplify the analog voice signal to drive the power amplifying circuit, and the analog voice information outputted from the digital-to-analog conversion circuit is transmitted to the amplifier circuit through the F1 line.
The power amplifying circuit amplifies the analog voice information transmitted by the amplifier again, and adopts a BTL bridge type power amplifier to amplify signals in a bridging mode; the signal amplified by the power amplifying circuit can directly drive the loudspeaker, the power consumption of the amplifier is little, and the power can be cut off when the amplifier does not work, so that the power consumption is further reduced; the amplifier can adjust output power through a potentiometer, so that the volume of the loudspeaker can be controlled; the power amplification circuit re-amplifies the amplified analog voice information through the FP line until sufficient power is available to drive the horn.
The control circuit adopts the contactor KM and the flashing relay KA, so that a crossing operator can realize the switching of the signal lamp by switching on/off the power supply of the contactor KM and the flashing relay KA through the on/off circuit breaker Q2, and the control circuit is safe and reliable, simple in circuit, convenient to operate, convenient to maintain and visual; the soundboard is used for carrying out voice reminding when a train passes through the railway crossing, and has the advantages of simple structure, convenient operation and no need of maintenance.
Claims (6)
1. The railway crossing warning device comprises a first railway signal machine, a second railway signal machine, a first highway signal machine and a second highway signal machine, wherein the first railway signal machine and the second railway signal machine are respectively arranged on two sides of a railway crossing parallel to rails, and the first highway signal machine and the second highway signal machine are respectively arranged on sides of the road entering the railway crossing;
The road junction control box comprises a first breaker, a first control branch, a second control branch and a power transformer, wherein the first control branch and the power transformer which are connected in parallel are connected with an alternating current power supply I through the first breaker, the power transformer is used for providing an alternating current power supply II, the second control branch is connected with the alternating current power supply II, the first control branch comprises branches a-e which are connected in parallel, and the second control branch comprises a branch f and a branch h which are connected in parallel.
2. The railway crossing warning device according to claim 1, wherein the branch a comprises a circuit breaker II and a coil of a contactor which are connected in series; the branch b comprises a normally closed auxiliary contact III of a contactor connected in series and a signal lamp I; the branch c comprises a normally open auxiliary contact IV of the contactor connected in series and a signal lamp II; the branch d comprises a switching power supply, the switching power supply is used for providing a direct current power supply, the loudspeaker is connected with the sound board, and the normally open auxiliary contact I of the contactor is connected with the input end of the sound board in series; the branch e comprises a normally open auxiliary contact II of the contactor connected in series and a coil connection of the relay.
3. The railway crossing warning device according to claim 1, wherein the branch f comprises a normally open auxiliary contact three of a contactor connected in series and a branch p, the branch p and the branch q are connected in parallel, the branch p comprises a normally closed contact of a relay connected in series and the signal lamp three, and the branch q comprises a normally open contact of a relay connected in series and the signal lamp four; the branch g comprises a normally closed auxiliary contact IV of the contactor connected in series and the signal lamp V.
4. A railroad grade crossing warning device as set forth in claim 3, wherein said relay is a flashing relay.
5. The railway crossing warning device according to claim 2, wherein the sound board comprises a main control module, a voice circuit, a power amplification circuit and a power supply circuit, the power supply circuit is used for providing VCC working power for the main control module, the voice circuit and the power amplification circuit, the voice circuit comprises a voice module, a digital-to-analog conversion circuit, a memory and an amplifier circuit, the voice module is respectively connected with the main control module and the memory in a bidirectional manner, the input end of the digital-to-analog conversion circuit is connected with the output end of the voice module, the output end of the digital-to-analog conversion circuit is connected with the input end of the amplifier circuit, the output end of the amplifier circuit is connected with the input end of the power amplification circuit, and the output end of the power amplification circuit is connected with the loudspeaker.
6. The railway crossing alarm device according to claim 5, wherein the voice module is an MCU singlechip, the amplifier circuit is composed of an operational amplifier, the power amplification circuit is composed of an audio amplifier, the memory is a FLASH memory or an EEPROM memory, the power supply circuit comprises a power supply module and a voltage stabilizer, the output end of the power supply module is connected with the voltage stabilizer, the output end of the voltage stabilizer is used for providing VCC working power supply, the input end of the power supply module is connected with a direct current power supply, and the digital-analog conversion circuit comprises a digital-analog converter and an operational amplifier which are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322648520.0U CN220974181U (en) | 2023-09-28 | 2023-09-28 | Railway crossing alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322648520.0U CN220974181U (en) | 2023-09-28 | 2023-09-28 | Railway crossing alarm device |
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| Publication Number | Publication Date |
|---|---|
| CN220974181U true CN220974181U (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322648520.0U Active CN220974181U (en) | 2023-09-28 | 2023-09-28 | Railway crossing alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220974181U (en) |
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2023
- 2023-09-28 CN CN202322648520.0U patent/CN220974181U/en active Active
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