CN216232294U

CN216232294U - Novel unmanned road junction alarm sensor circuit

Info

Publication number: CN216232294U
Application number: CN202122807548.5U
Authority: CN
Inventors: 崔若祥; 王晶; 刘俊灵; 李钢
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-08
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the field of safety of railway unattended gates. The utility model provides a novel unmanned road junction warning sensor circuit, the road junction is marchd at the train, sensor 3 goes upward in 1 installation of uplink, downlink sensor 5 is installed to downlink 2, normally open switch 7 is connected respectively to uplink sensor 3 and downlink sensor 5, the power of series connection, normally open switch 7, audible-visual annunciator 9, gate controller 10 constitutes total control circuit about the road junction, cancel sensor 4 on the opposite side of the road junction of uplink sensor 3 on uplink 1, cancel sensor 6 down in the opposite side of the 5 road junction of downlink sensor on downlink 2, total control circuit establishes ties a normally closed switch 8 again, cancel sensor 4 and the normal closed switch 8 is connected respectively to the downlink cancel sensor 6 on the uplink.

Description

Novel unmanned road junction alarm sensor circuit

Technical Field

The utility model relates to the field of safety of railway unattended gates.

Background

The railway unattended crossing is a crossing formed by crossing a railway and a highway plane, the crossing of the type is often a complex traffic zone, the railway unattended crossing alarm device plays a standard role in restricting the traffic order of passing vehicles, at present, a large number of unattended railway crossings are provided with automatic audible and visual alarms, when a train rolls a sensor (ascending or descending), crossing alarm control signals are generated and sent to a control circuit for processing through a transmission line, the control circuit controls the alarm device to give an incoming alarm according to the alarm conditions obtained by the sensor, vehicles and pedestrians are reminded of paying attention to safety, and meanwhile, the highway channel is closed through an upper gate controller and a lower gate controller of the crossing, so that the purpose of safety protection is achieved. However, the train control circuit delays for 90 seconds after receiving the signals of the listed departure sensors, and then can automatically release the voice alarm, so that the crossing congestion time is greatly increased, the delay of the alarm sound at the crossing is reduced, and the safe operation can be effectively kept, which is a difficult problem in front of people.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: how to reduce the alarm time of the alarm device while ensuring the safe passing of the list through the road junction.

The technical scheme adopted by the utility model is as follows: a novel unmanned crossing alarm sensor circuit is characterized in that an uplink sensor (3) is installed on an uplink line (1) and a downlink sensor (5) is installed on a downlink line (2) at a crossing where a train runs, the uplink sensor (3) and the downlink sensor (5) are respectively connected with a normally open switch (7) and a power supply and the normally open switch (7) which are in series connection, the sound-light alarm (9) and the gate controller (10) on and under the crossing form a master control circuit, an uplink cancellation sensor (4) is installed opposite to the crossing of the uplink sensor (3) on the uplink line (1), a downlink cancellation sensor (6) is installed opposite to the crossing of the downlink sensor (5) on the downlink line (2), the master control circuit is further connected with a normally closed switch (8) in series, and the uplink cancellation sensor (4) and the downlink cancellation sensor (6) are respectively connected with the normally closed switch (8).

The uplink sensor (3), the downlink sensor (5), the uplink cancellation sensor (4) and the downlink cancellation sensor (6) are all magnetoelectric time sensors.

When the normally open switch (7) receives the electric signal of the uplink sensor (3) or the downlink sensor (5), the circuit is switched on, and then the circuit is switched off after 90 seconds of delay.

And when the normally closed switch (8) receives the electric signal of the uplink cancellation sensor (4) or the downlink cancellation sensor (6), the circuit is disconnected after 6 seconds of delay.

The uplink sensor (3) and the downlink sensor (5) are connected in parallel and then are connected in series with a power supply and a control coil of a normally open switch.

The uplink cancellation sensor (4) and the downlink cancellation sensor (6) are connected in parallel and then are connected in series with a power supply and a control coil of the normally closed switch.

A regulating resistor (11) is connected in parallel on a branch of the normally open switch (7) and the normally closed switch (8) which are connected in series to form a repair circuit, and the total resistance on the repair circuit is equal to the resistance generated by the normally open switch (7).

The utility model has the beneficial effects that: the utility model adds a cancel sensor on the basis of the prior art and modifies a control circuit, so that the alarm time of the alarm equipment is shortened on the premise of meeting the safety by using the existing equipment under the condition of not carrying out large engineering.

Drawings

FIG. 1 is a schematic view of a crossing sensor location installation;

FIG. 2 is a schematic diagram of the control circuit of the present invention;

FIG. 3 is a schematic diagram of a prior art control circuit;

the system comprises an ascending line 1, a descending line 2, a descending line 3, an ascending sensor 4, an ascending cancellation sensor 5, a descending sensor 6, a descending cancellation sensor 7, a long-open switch 8, a normally closed switch 9, an audible and visual alarm 10, a crossing upper and lower gate controller 11 and a regulating resistor.

Detailed Description

As shown in fig. 3, in a conventional unmanned crossing alarm sensor circuit, an uplink sensor 3 is mounted on an uplink line 1, a downlink sensor 5 is mounted on a downlink line 2, the uplink sensor 3 and the downlink sensor 5 are respectively connected with a normally open switch 7, and a power supply, the normally open switch 7, an audible and visual alarm 9, and a crossing upper and lower gate controller 10 in series form a master control circuit.

The up sensor 3 and the down sensor 5 are both magneto-electric time sensors, i.e. magneto-electric time relays.

The time relay is a relay in which an output circuit generates a jump change (or contact action) after a specified accurate time elapses after an input action signal is added (or removed). Is an electrical component used in a lower voltage or lower current circuit to turn on or off a higher voltage, higher current circuit.

The magnetoelectric sensor converts the input motion speed into an induced potential in a coil and outputs the induced potential by utilizing the principle of electromagnetic induction. The sensor directly converts the mechanical energy of a measured object into an electric signal to be output, does not need an external power supply during working, and is a typical passive sensor. It is commonly used for measuring speed in traffic industry.

The magnetoelectric time relay is a relay which combines a time relay and a magnetoelectric sensor and has the characteristics of the time relay and the magnetoelectric sensor, and is widely used in the existing traffic industry, such as ZDX3 type magnetoelectric sensors. Such sensors are not described much in the present invention.

In prior art, go up sensor 3 and down sensor 5 and all be set up to start when sensing the train and being in its top motion, the coil of the normally open switch 7 of notice control is closed to audible-visual annunciator 9 among the total control circuit begins to report to the police, when sensing the train and leaving its top, begin the timing, the timekeeping time is 90 seconds among the prior art, the back finishes in the timing, the coil disconnection of the normally open switch 7 of control, total control circuit loses the electricity, audible-visual annunciator 9 stops reporting to the police.

In one embodiment, two ZDX3 type magnetoelectric sensors are respectively taken as an uplink sensor 3 and a downlink sensor 5 and buried in the inner sides of the guide rails at two sides of the crossing by taking a YC-2 type controller as a master control circuit.

As shown in fig. 1, the up sensor 3 is located inside the train track of the crossing where the train on the up line 1 passes, and the down sensor 5 is buried inside the train track of the crossing where the train on the down line 2 passes.

The time cannot be set too small to ensure safety. The congestion time of other vehicles at the road junction is greatly increased.

The utility model is improved on the basis.

An uplink cancellation sensor 4 is arranged opposite to the crossing of an uplink sensor 3 on an uplink line 1, a downlink cancellation sensor 6 is arranged opposite to the crossing of a downlink sensor 5 on a downlink line 2, a master control circuit is connected with a normally closed switch 8 in series, and the uplink cancellation sensor 4 and the downlink cancellation sensor 6 are respectively connected with the normally closed switch 8.

In one embodiment, the upward cancellation sensor 4 and the downward cancellation sensor 6 are the same sensors as the upward sensor 3, that is, ZDX3 type magnetoelectric sensors are used.

And when the normally closed switch 8 receives the electric signal of the uplink cancellation sensor 4 or the downlink cancellation sensor 6, the circuit is disconnected after 6 seconds of delay.

The timing time of the up cancellation sensor 4 or the down cancellation sensor 6 is 6 seconds.

The user feels that the intersection is listed, the alarm is cancelled when the user waits for 6 seconds, and the intersection is opened to go the same way.

The uplink sensor 3 and the downlink sensor 5 are connected in parallel and then are connected in series with a power supply and a control coil of a normally open switch.

The uplink cancellation sensor 4 and the downlink cancellation sensor 6 are connected in parallel and then are connected in series with a power supply and a control coil of the normally closed switch.

A regulating resistor 11 is connected in parallel on the branch of the normally open switch 7 and the normally closed switch 8 which are connected in series to form a repair circuit, and the total resistance on the repair circuit is equal to the resistance generated by the normally open switch 7.

Road junction alarm working principle: when the left ascending train approaches and steps on the ascending approach point, the automatic starting host machine sends out sound and flash alarm through the alarm device: directly pushes the high pitch horn to send out sound alarm with alternative bell sound and voice. And after the last wheel pair of the train completely passes through the arrival cancellation sensor arranged on one side of the crossing for about 6 seconds, the alarm restoration is automatically cancelled. Similarly, when the downstream train on the right side passes through the crossing, the working process of the alarm device is similar,

14-core rectangular socket on YC-2 type controller:

the first to third embodiments 1 to 8 are ports for receiving an input 220V ac power supply.

And 2-3 are ports for connecting the magnetoelectric sensors of the upstream approaching alarm points.

And thirdly, 6-7 are ports of the magnetoelectric sensors connected with the downlink approach alarm points.

And the four audio alarm output ports 9-10 and 10-11 are connected with two paths of outdoor tweeters respectively.

Fifthly, 4 (+) -5 (-) is the lamplight alarm power output port for outputting the direct current alarm power (about 12V); no electrical output is normally available; only when alarming, the DC alarming power supply outputs.

Sixthly, 12-14 are ports of the magnetoelectric sensor which are connected to the cancel point. (original reserved joint)

And the peaceful and peaceful 13 is connected with a lightning protection ground wire and is specially used for lightning protection.

In the actual transformation process.

The up cancel sensor 4 or the down cancel sensor 6 is installed. An upstream cancellation sensor 4 is installed opposite to the crossing of the upstream sensor 3 on the upstream line 1, and a downstream cancellation sensor 6 is installed opposite to the crossing of the downstream sensor 5 on the downstream line 2. The distance between the uplink cancellation sensor 4 or the downlink cancellation sensor 6 and the crossing is 5 m. The ZDX3 type magnetoelectric sensor has direction recognition function, only the train approaching the crossing in the positive direction can start the device to alarm, and the train leaving in the reverse direction can not be started by mistake

The normally closed switch is connected in series, the ports of the audible and visual alarm circuits (B13 and B11) are cut off in a circuit board of the YC-2 type controller, the ports of the 14-core rectangular plugs 12 and 14 are led out from the ports B13 and B11, and the uplink cancellation sensor 4 and the downlink cancellation sensor 6 are connected in parallel and then are connected in series with a power supply and a control coil of the normally closed switch.

The existing long-open switch (relay switch) resistance is 1.5k ohm, and the installed normally-closed switch (relay switch) resistance is 1.5k ohm. After the normally closed switch is directly connected in series, the existing YC-2 type controller can give an alarm due to the increase of the resistance in the circuit, and the fault alarm is caused because the output voltage is low due to the increase of the series power resistance. The self-checking of the YC-2 type controller cannot be realized, so that a 3k adjusting resistor 11 is connected in parallel to a branch circuit of a normally open switch 7 and a normally closed switch 8 which are connected in series, and therefore the total resistance of a repairing circuit is equal to the resistance generated by the normally open switch 7, namely the total resistance of the repairing circuit is 1.5k ohms. The controller self-checks and passes, the two groups of arrival cancellation sensors can be normally driven, and after the test, the tail vehicle rolls the arrival cancellation sensors, and then the acousto-optic sound alarm is released within 6 seconds.

Claims

1. The utility model provides a novel unmanned road junction warning sensor circuit, at the road junction of marcing of train, go upward sensor (3) on line (1) installation, down line (2) installation down sensor (5), go upward sensor (3) and down sensor (5) and connect normally open switch (7) respectively, become the power of series connection, normally open switch (7), audible-visual annunciator (9), gate controller (10) constitute total control circuit, its characterized in that about the road junction: an uplink cancellation sensor (4) is arranged opposite to the crossing of an uplink sensor (3) on an uplink line (1), a downlink cancellation sensor (6) is arranged opposite to the crossing of a downlink sensor (5) on a downlink line (2), a normally closed switch (8) is connected in series with a master control circuit, and the uplink cancellation sensor (4) and the downlink cancellation sensor (6) are respectively connected with the normally closed switch (8).

2. The novel unmanned crossing warning sensor circuit of claim 1, wherein: the uplink sensor (3), the downlink sensor (5), the uplink cancellation sensor (4) and the downlink cancellation sensor (6) are all magnetoelectric time sensors.

3. The novel unmanned crossing warning sensor circuit of claim 1, wherein: when the normally open switch (7) receives the electric signal of the uplink sensor (3) or the downlink sensor (5), the circuit is switched on, and then the circuit is switched off after 90 seconds of delay.

4. The novel unmanned crossing warning sensor circuit of claim 1, wherein: and when the normally closed switch (8) receives the electric signal of the uplink cancellation sensor (4) or the downlink cancellation sensor (6), the circuit is disconnected after 6 seconds of delay.

5. The novel unmanned crossing warning sensor circuit of claim 1, wherein: the uplink sensor (3) and the downlink sensor (5) are connected in parallel and then are connected in series with a power supply and a control coil of a normally open switch.

6. The novel unmanned crossing warning sensor circuit of claim 1, wherein: the uplink cancellation sensor (4) and the downlink cancellation sensor (6) are connected in parallel and then are connected in series with a power supply and a control coil of the normally closed switch.

7. The novel unmanned crossing warning sensor circuit of claim 1, wherein: a regulating resistor (11) is connected in parallel on a branch of the normally open switch (7) and the normally closed switch (8) which are connected in series to form a repair circuit, and the total resistance on the repair circuit is equal to the resistance generated by the normally open switch (7).