CN2292719Y - Two-way failure display and train nearing alarm device - Google Patents
Two-way failure display and train nearing alarm device Download PDFInfo
- Publication number
- CN2292719Y CN2292719Y CN 96219637 CN96219637U CN2292719Y CN 2292719 Y CN2292719 Y CN 2292719Y CN 96219637 CN96219637 CN 96219637 CN 96219637 U CN96219637 U CN 96219637U CN 2292719 Y CN2292719 Y CN 2292719Y
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Abstract
The utility model relates to a two-way failure display and train approaching alarm, which belongs to the technical field of warning signals for railway security. The utility model is composed of a two way electromagnetic inductor, a signal cable, an alarm circuit, a failure self-checking circuit, an AC power-off alarm circuit, a power supply at 12V, and a power supply automatic switchover circuit. When the electromagnetic inductor goes wrong, the utility model can guarantee that one-way electromagnetic inductor can still alarm normally, or alarm for failures can be given continuously when two ways go wrong, reminding workers of repairing in time, so the normal operation of the alarm can be guaranteed. The utility model has the advantage of has high reliability. The utility model is an indispensable safety facility for various level crossings.
Description
The utility model relates to the special-purpose train proximity sensing of railway device, and particularly a kind of train proximity sensing device of two-way electromagnetic sensor circuit structure belongs to railway security alerting signal technical field.
In the railroad train operational process, section along the line need give performing earlier and connect the car preparation, generally all adopt the single-sensor circuit structure to the approaching annunciator of train operation ahead section forecast train, exist that structure is outmoded, bulky, relay tip easy-sintering and single working sensor reliability be low, can not really report train near so that influence shortcoming such as traffic safety.
The purpose of this utility model is: provide a kind of structure new, volume is little, adopts extensive logic gates, noncontacting switch, two electromagnetic inductor, multi-path signal not to disturb, have the safe and reliable train approach warning device of language electricity arteries and veins chip and stroke public address system and fault self-checking system mutually.
The technical solution of the utility model is: the structure of this device is the trackside that two electromagnetic inductors is embedded in the train process, connect 1000 meters long signal cables of two-way respectively and insert automatic-alarm receiver, automatic alarm circuit partly is made up of two-way failure alarm circuit and automatic alarm circuit, two triodes and the relay of diode, the amplification of gate circuit, the valve action of transistor, the shaping operation of amplification are installed respectively in the circuit, and are connected language board.When train speed per hour during greater than 5 kilometers, electromagnetic inductor produces inductive impulse, through cable input language auto alarm machine circuit, amplifies through transistor, the gate circuit shaping, diode rectification makes two transistor turns, the relay adhesive, language board work, whole annunciator is a normal operation.Be provided with failure alarm circuit in the autoalarm circuit, by resistance and aerotron control, failure alarm circuit is not worked in normal operation, and failure alarm circuit is made up of OR-NOT circuit, light-emitting diode and switch.If wherein an electromagnetic inductor opens circuit, the aerotron conducting, gate circuit output high potential also makes the flashing oscillator vibration, the active potential of its output and the electromagnetic inductor respective branch that opens circuit together is added to the mouth of OR-NOT circuit, can make light-emitting diode report luminous newspaper, point out one tunnel fault, the moving switch of plate can cut out the fault warning light, but another road electromagnetic induction circuit this moment Normal Alarm still; If two electromagnetic inductors open circuit simultaneously, then two light-emitting diodes dodge the fault alarm that jumps simultaneously, and then the uncontrollable closing fault warning light of switch is pointed out and must be repaired, and is reliable to guarantee device security.
The utility model compared with prior art has the following advantages: two electromagnetic induction is installed on same amine road sent impulse singla simultaneously, wherein during one tunnel fault, can send the fault alarm prompting and repair, but another road normal operation still; If during two electromagnetic inductor simultaneous faultss, the not under command light prompting can't be turn-offed, and reminds in time and repairs, and guarantees train near Normal Alarm, has improved the reliability of security alarm, has advantages such as structure is new, volume is little simultaneously.
Be described further below in conjunction with accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is warning machine circuit figure among Fig. 1.
Embodiment: two electromagnetic inductors 1 are embedded in the track inboard respectively, when train passes through speed per hour greater than 5 kilometers, electromagnetic inductor 1 all produces impulse singla, and two electromagnetic inductors 1 connect with language automatic-alarm receiver 23 circuit through two 1000 meters signal cables 22 respectively, and impulse singla is through cable 22 input annunciators 23, amplify through transistor 2, gate circuit 3,4 shapings, diode 5 rectifications, aerotron 6,7 amplifies, make relay 8 adhesives, the annunciator Normal Alarm.Two inductors 1 connect A or B respectively through the two-way failure alarm circuit, if wherein an electromagnetic inductor 1 disconnects, then aerotron 9 conductings, A or B point output active potential are added to OR-NOT circuit 13, gate circuit 10 output high potentials, and the flashing oscillator of being made up of gate circuit 11 and gate circuit 12 vibrates, be added to joint denial gate 13 simultaneously, can make lumination of light emitting diode, prompting road junction personnel one road electromagnetic inductor 1 fault, this moment, operating switch 20 or 21 can be closed one road fault-indicating lamp; All open circuit as two electromagnetic inductors 1,2 active potential of A, B simultaneously behind " not gate " 14 and " not gate " 15 respectively through diode 16,17, be added to not gate 18 input end is arranged, at this moment not gate 18 has output, direct drive oscillator 19 sends failure warning, the moving switch 20,21 of plate this moment can not turn-off alarm, guarantees just can stop failure warning until trouble-shooting, so just can guarantee the normal operation of reporting to the police.When alternating current circuit had a power failure, the 12V backup power started automatically, sent source of AC power failure alarm, and notice road junction personnel take corresponding measure.
Claims (3)
1, a kind of two-way fault shows train approach warning device, form by electromagnetic inductor, signal cable and warning machine, it is characterized in that: this annunciator is to be embedded in train respectively through trackside by two electromagnetic inductors, and link through two paths of signals cable and auto alarm machine circuit, automatic-alarm receiver is interior except that the warning circuit of being made up of amplifying circuit, shaping circuit, warning executive circuit, two-way alarming logic gate circuit is set simultaneously, form by OR-NOT circuit, light-emitting diode and switch, the electromagnetic inductor fault, lumination of light emitting diode is reported to the police.
2, a kind of two-way fault according to claim 1 shows train approach warning device, and it is characterized in that: failure alarm circuit is made up of the two-way warning circuit, and NAND gate circuit, oscillator connection.
3, a kind of two-way fault according to claim 1 shows train approach warning device, and it is characterized in that: this circuit is furnished with 12V direct supply and alternating current cut-offing alarming circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96219637 CN2292719Y (en) | 1996-10-15 | 1996-10-15 | Two-way failure display and train nearing alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96219637 CN2292719Y (en) | 1996-10-15 | 1996-10-15 | Two-way failure display and train nearing alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292719Y true CN2292719Y (en) | 1998-09-30 |
Family
ID=33900184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96219637 Expired - Fee Related CN2292719Y (en) | 1996-10-15 | 1996-10-15 | Two-way failure display and train nearing alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292719Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537848B (en) * | 2008-03-19 | 2013-06-19 | 阿尔斯通运输股份有限公司 | Threshold-based safety circuit for a railway system |
-
1996
- 1996-10-15 CN CN 96219637 patent/CN2292719Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537848B (en) * | 2008-03-19 | 2013-06-19 | 阿尔斯通运输股份有限公司 | Threshold-based safety circuit for a railway system |
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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 |