CN2199908Y - Automatic induction alarm device for vehicle pass through railway crossing - Google Patents
Automatic induction alarm device for vehicle pass through railway crossing Download PDFInfo
- Publication number
- CN2199908Y CN2199908Y CN 93229072 CN93229072U CN2199908Y CN 2199908 Y CN2199908 Y CN 2199908Y CN 93229072 CN93229072 CN 93229072 CN 93229072 U CN93229072 U CN 93229072U CN 2199908 Y CN2199908 Y CN 2199908Y
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- CN
- China
- Prior art keywords
- vehicle
- sensor
- oscillator
- alarm device
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic induction alarm device for magnetic inductive vehicle passing through railway crossings, comprising a sensor, an amplifier, a switch circuit, an oscillator, an acoustic alarm portion and a light alarm portion. The utility model is characterized in that the sensor adopts magneto sensitive elements which are separately arranged in the difference portions of the vehicles, and the magneto sensitive elements are kept with certain distance. The utility model can be used for unmanned railway crossings for assuring the safety of people and vehicles.
Description
The utility model relates to a kind of magnetic inductive vehicle by the level crossing autoalarm.
The accident of train and car collision happens occasionally, and in order to address this problem, normally adopts uneconomic method and measure to eliminate accident potential.
The purpose of this utility model provides a kind of magnetic inductive vehicle by the level crossing autoalarm.
Technical solution of the present utility model can realize by following approach:
A kind of magnetic inductive vehicle is by the level crossing autoalarm, report to the police and partly form by two sensors, amplifier, switch circuit, oscillator, acoustic alarm part, light, particularly two sensors have all adopted magneto sensor, and the different parts front and back that are located at vehicle respectively keep certain distance, when vehicle passes through the buried magnet on limit, road junction, one of them sensor cutting magnetic line produces weak voltage, signal enters amplifier, switch circuit, and trigger silicon control and connect oscillator and acoustic-optic alarm.
During the buried magnet of vehicle by the limit, road junction, one of them sensor cutting magnetic line produces weak voltage (the diode voltage limit in sensor is below 0.4 volt), signal from the input end of IC1 and IC2 2., 3., 9., 10. pin enter IC1 and IC2 amplifies and from 1., 8. pin output signal, again from the input end of IC3
,
Pin be input to IC3 and from
Pin output negative going pulse, the reference voltage difference that this negative going pulse amplitude and IC4 comparison amplifier are set is big more, IC4 7. pin to amplify the positive pulse value of output just high more, thereby cause triode BG1 conducting and trigger the power supply that silicon control is connected oscillator and acoustic-optic alarm.
When vehicle by high-intensity magnetic field or owing to the reasons such as emission of Vehicle mounted station, two sensors with
The time induced voltage, IC1, the subtraction circuit that IC2, IC3 form makes IC3
Pin is output as zero, thereby has prevented flase alarm.
Accompanying drawing 1 is the circuit diagram of this autoalarm
Accompanying drawing 2 is this autoalarm electricity functional-block diagram
Embodiment:
Amplifier section IC1, IC2, IC3 can use the LM324 integrated package, two sensors (1 of autoalarm operating voltage 12V, 2) can adopt the permalloy permeability magnetic material to make iron core and coiling respective coil thereon, two sensors are positioned on the rear and front end of vehicle respectively, acoustic-optic alarm can adopt loudspeaker and flash light, sensor (1) or sensor (2), the light current force feed that cutting magnetic line produces is gone into LM324 and is amplified, make the BG1 conducting and trigger the power supply that silicon control is connected oscillator and sound light alarming circuit, the work that makes it is reported to the police, and the driver hears that the back of reporting to the police stops by the switch warning.
Claims (1)
1, a kind of magnetic inductive vehicle is by the level crossing autoalarm, comprise: two sensors (1,2), amplifier (3), switch circuit (4), oscillator (5), acoustic alarm part (6), light warning part (7), it is characterized in that: two sensors (1,2) constitute by magneto sensor, and keep certain distance before and after dividing the different parts that is located at vehicle, when vehicle buries magnet by the border district, road junction, one of them sensor cutting magnetic line produces weak voltage, signal enters amplifier (3), switch circuit (4), and trigger silicon control and connect oscillator (5) and acoustic-optic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229072 CN2199908Y (en) | 1993-08-23 | 1993-08-23 | Automatic induction alarm device for vehicle pass through railway crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229072 CN2199908Y (en) | 1993-08-23 | 1993-08-23 | Automatic induction alarm device for vehicle pass through railway crossing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199908Y true CN2199908Y (en) | 1995-06-07 |
Family
ID=33806004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93229072 Expired - Fee Related CN2199908Y (en) | 1993-08-23 | 1993-08-23 | Automatic induction alarm device for vehicle pass through railway crossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199908Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569311A (en) * | 2017-03-08 | 2018-09-25 | 华东交通大学 | A kind of EMU platform side identification device of line of induction ring type |
-
1993
- 1993-08-23 CN CN 93229072 patent/CN2199908Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108569311A (en) * | 2017-03-08 | 2018-09-25 | 华东交通大学 | A kind of EMU platform side identification device of line of induction ring type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |