Alarm combination device of railway earthquake early warning and monitoring system
The railway earthquake early warning and monitoring system, which uses integrated circuit boards and modular design, solves the problems of complex lines, difficulty in fault finding, and severe electromagnetic interference in existing technologies, and achieves efficient and stable earthquake early warning and monitoring and train operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-27
AI Technical Summary
Existing earthquake early warning and monitoring system combination devices have problems such as complex wiring, difficulty in fault finding, reliance on a single power source leading to mutual interference between devices, high false alarm rate, serious electromagnetic interference, and unstable train operation.
It adopts an integrated circuit board and modular design, with an independent power supply, uses safety relays to realize circuit logic connection, supports dual power supply, and ensures normal train operation through relay logic relationship, provides power indication and status monitoring, and supports fault location and isolation operation.
It improved the accuracy of fault location and the stability of equipment, reduced the false alarm rate, ensured the normal operation of trains, simplified the maintenance process, and met the requirements of technical specifications.
Smart Images
Figure CN224052711U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to railway earthquake field especially relates to a railway earthquake early warning monitoring system alarm combination device BACKGROUND
[0002] At present, the earthquake early warning in the well-known earthquake early warning monitoring system combination device mainly uses two safety type relays, which are earthquake early warning-01 relay (early warning-01) and earthquake early warning-02 relay (early warning-02), and the above are all reinforced H480 safety type relays. Through the DC 24V circuit of the earthquake monitoring unit, the earthquake data acquisition equipment and the traction power supply signal system interface relay are connected. When the on-site earthquake sensor seismic waveform is collected by the earthquake data acquisition instrument, the corresponding relay in the combination device falls down, and the interface relay of the signal system is triggered to act. The internal circuit of the combination device is complex, and the production and manufacturing process is all made by manual welding process, and it is difficult to find the fault reason when problems occur. The same power supply in the monitoring unit cabinet is used for power supply, and the problem of single device power supply will affect the normal operation of other subsystems.
[0003] When the data collector of the earthquake monitoring unit collects the seismic wave received by the two on-site earthquake sensors, it indicates that the earthquake is about to occur in the area, the control circuit sends the earthquake alarm information to the traction power supply system, controls the high voltage circuit breaker of the traction power supply, and disconnects the power supply arm catenary power supply in the range. But the earthquake early warning monitoring system combination device cannot determine which earthquake sensor receives the seismic wave, and cannot accurately reflect the intuitive state of the seismic wave received by the on-site earthquake sensor.
[0004] When the data collector of the earthquake monitoring unit collects the seismic wave received by the two on-site earthquake sensors, it indicates that the earthquake is about to occur in the area, the control circuit sends the earthquake alarm information to the traction power supply system, controls the high voltage circuit breaker of the traction power supply, and disconnects the power supply arm catenary power supply in the range. But the earthquake early warning monitoring system combination device cannot determine which earthquake sensor receives the seismic wave, and cannot accurately reflect the intuitive state of the seismic wave received by the on-site earthquake sensor.
[0005] After the line is opened and runs, the combination device is regularly inspected, and the test affects the normal work of the traction variable system equipment.
[0006] Under normal operating conditions, the power supply for the Early Warning-01 and Early Warning-02 relays is provided by the DC24V power supply from the earthquake monitoring unit cabinet. Due to a short circuit in the DC24V power supply module inside the cabinet, the Early Warning-01 and Early Warning-02 relays fell, generating false earthquake early warning information and causing a power outage accident in this section; this does not comply with the relevant documents and regulations for the operation of traction power supply system equipment.
[0007] In addition, the unbalanced power supply method of electrified railways causes electromagnetic interference and dangerous effects on the internal cables of the railway. Especially when a train passes by, the unbalanced current of the traction power supply system will generate a high induced voltage on the transmission cable between the earthquake monitoring unit and the traction power supply system, causing the interlocking system relay to fall due to unstable power supply, thereby affecting the normal operation of the train. Utility Model Content
[0008] The purpose of this utility model is to provide an alarm combination device for a railway earthquake early warning monitoring system, which overcomes the shortcomings of the prior art. It provides a standard framework design that is universal, flexible, and has isolated power supply. It adopts integrated circuit boards and modularly assembles a combination module of a railway earthquake early warning monitoring system that conforms to the technical specifications. It can meet the requirements of efficient mass production and manufacturing. The produced combination module has stable quality, is easy to disassemble, has accurate fault location, and meets relevant technical requirements.
[0009] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0010] An alarm combination device for a railway earthquake early warning monitoring system includes a combination device housing. The side and top panels of the housing are equipped with heat dissipation holes. The front panel of the housing is equipped with a power indicator and a status indicator. The back panel of the housing is equipped with one interface for connecting to the main / backup controller of the monitoring unit and one interface for connecting to the traction power supply. A three-slot PCB integrated circuit board is mounted on the front of the interior of the housing. A PCB integrated circuit board is mounted on the top of the housing. Three safety-type 1700 relays are mounted on the front of the interior of the housing. Eight relays are mounted on the PCB integrated circuit board on the top of the housing. Two power supplies are mounted on the top PCB integrated circuit board of the housing.
[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0012] 1. The power supply inside the combined device of this utility model is set independently from the DC24V power supply of the earthquake monitoring unit cabinet to avoid mutual interference.
[0013] 2. This utility model combined device has power and working status indicator lights, and can accurately and quickly locate seismic waves.
[0014] 3、The utility model discloses a combination device uses integrated circuit board to connect each relay according to the circuit logical relation, guarantees the correct rate and saves manual time, and it is convenient for later maintenance.
[0015] 4、The utility model discloses a combination device realizes not triggering the traction power supply system power failure under the condition of external power power failure, uninterrupted power supply or uninterrupted power supply power consumption, and ensures the normal operation of train.
[0016] 5、After the line is opened and runs, when the combination device is regularly patrolled, manual isolation operation is carried out, and relay carries out port isolation, and the normal work of traction variable system equipment is not affected when testing.
[0017] 6、The utility model discloses a combination device supports 2-way power supply, and output end adopts direct current parallel form, realizes power supply double redundancy, when one-way power supply appears failure, another power supply normally supplies power, and since there is battery, can always keep power supply normal.
[0018] 7、The utility model discloses a combination device structure is reasonable, and installation and removal are convenient, guarantees the product's consistent type, overcomes the diversity of manual manual welding technology, high error rate, time-consuming and other drawbacks, and it has important significance to guarantee product quality. DRAWINGS
[0019] Figure 1 It is the front structure schematic drawing of the utility model combination device;
[0020] Figure 2 It is the back structure schematic drawing of the utility model combination device;
[0021] Figure 3 It is the top PCB circuit board schematic drawing of the utility model combination device;
[0022] Figure 4 It is the principle diagram of the utility model combination device.
[0023] Figure 1 Middle: 1 is combination device box, 2 is power supply indicating lamp board, 3 is state indicating lamp board, 4 is three slot PCB integrated circuit board, 5 is earthquake early warning-01 safety type relay, 6 is earthquake early warning-01 safety type relay, 7 earthquake alarm relay.
[0024] Figure 2 Middle: 8 is main / standby controller interface, 9 is traction power supply interface.
[0025] Figure 3The middle: 10 is a top PCB integrated circuit board, 11 is an external wiring plug, 12 is a pre-warning-01 control relay / main, 13 is a pre-warning-02 control relay / main, 14 is a pre-warning-01 control relay / backup, 15 is a pre-warning-02 control relay / backup, 16 is a one-way power module, 17 is a two-way power module, and 18-21 are four isolation relays. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0027] Please refer to Figure 1 The combination module of the railway foreign matter intrusion monitoring subsystem in the embodiment comprises a combination device box 1, and the box structure is 259.5*445*396mm in height, width and depth, is suitable for a standard cabinet of 600*600mm, and the protection grade of the combination device box 1 is IP65. The power supply and state indicator lamp reserved hole positions of the front panel of the combination device box 1 are fixedly provided with a power supply indicator lamp plate 2 and a state indicator lamp plate 3, a three-groove PCB integrated circuit board 4 is fixedly arranged on the front of the combination module box, and the earthquake pre-warning-01 relay 5, the earthquake pre-warning-02 relay 6 and the earthquake alarm relay 7 are sequentially arranged in the grooves from left to right.
[0028] The back of the combination device box 1 is provided with a main / backup controller interface 8 and a traction power supply interface 9.
[0029] The top PCB integrated circuit board 10 of the combination device box 1 is provided with an external wiring plug (11), a pre-warning-01 control relay / main (12), a pre-warning-02 control relay / main (13), a pre-warning-01 control relay / backup (14), a pre-warning-02 control relay / backup (15), a one-way power module (16), a two-way power module (17) and four isolation relays (18-21) from left to right and from top to bottom;
[0030] The earthquake monitoring unit host computer and the backup computer control the pre-warning-01 control relay / main (12) and the pre-warning-01 control relay / backup (14) respectively, cut off the power supply of the front pre-warning earthquake pre-warning-01 relay (5) through the contact, and make the front pre-warning earthquake pre-warning-01 relay (5) fall down.
[0031] The main and backup machines of the earthquake monitoring unit respectively control the pre-warning-02 control relay / main (13) and the pre-warning-02 control relay / backup (14), and cut off the front pre-warning earthquake pre-warning-02 relay (6) control power supply through the contact to make the front pre-warning earthquake pre-warning-02 relay (6) fall down.
[0032] The four isolation relays (18-21) are energized and attracted by manually switching the switch of the earthquake monitoring unit; the 1# and 2# high-voltage incoming line power supply and the main transformer protection and control device circuit are cut off to achieve the isolation purpose.
[0033] The power supply indicator light plate 2 and the state indicator light plate 3 on the front of the combination device box 1, the main / backup controller interface 8 and the traction power supply interface 9 on the back are connected to the three-groove PCB integrated circuit board 4 on the front and the PCB integrated circuit board 10 on the top through internal logical relationship.
[0034] When the two-way power supply is normal, the power supply indicator green light is always on, and when the power supply is abnormal, the power supply indicator light is off. When the pre-warning-01 relay and the pre-warning-02 relay are attracted, the pre-warning-01 and pre-warning-02 state indicator green lights are always on, and when the state is abnormal, the indicator light is off.
[0035] As shown in Figure 3 When the earthquake monitoring unit data collector collects the earthquake sensor 1 or the earthquake sensor 2, the pre-warning-01 relay or the pre-warning-02 relay falls down, the combination device sends a fault alarm signal to the main / backup of the earthquake monitoring unit, but does not trigger the traction power supply system equipment; when the earthquake monitoring unit data collector collects the earthquake wave of the earthquake sensor 1 and the earthquake sensor 2 at the same time, the pre-warning-01 relay and the pre-warning-02 relay fall down at the same time, the alarm relay is attracted, the combination device sends a seismic alarm signal to the main / backup of the earthquake monitoring unit; at the same time, the combination device alarm relay is attracted, the high-voltage incoming line power supply circuit and the main transformer protection and control device are turned on, the high-voltage circuit breaker on the traction power supply system side is tripped, the substation comprehensive automation system drives the high-voltage circuit breaker to trip, and the power supply of the railway catenary is cut off, so that the running train is stopped.
[0036] At the same time, since the correspondence between the earthquake sensor and the pre-warning relay is distinguished, the waveform of the earthquake can be more accurately judged, and other false alarms can be more accurately judged, which facilitates the staff to handle the on-site fault in the first time and reduces the time for troubleshooting. After the earthquake disaster ends, the main / backup machine of the monitoring unit receives the dispatching recovery command, the pre-warning-01 relay is attracted, the pre-warning-02 relay is attracted, the alarm relay falls down, and the combination device returns to normal work.
[0037] When the line is put into operation, the combination device of earthquake early warning monitoring system is tested, the 4 isolation relays on the top PCB integrated circuit board of the combination device are energized and attracted by manually switching the switch of the earthquake monitoring unit, the 1# and 2# high-voltage incoming line power supply and the main transformer protection and control device loop are cut off; the 1# and 2# high-voltage incoming line power supply and the main transformer protection and control device loop do not act when the early warning-01 relay and the early warning-02 relay fall down at the same time under the test condition, the alarm relay is attracted, the traction power supply system equipment is not triggered, and the normal operation of the line is not affected.
[0038] When there is no seismic wave, the early warning-01 relay coil and the early warning-02 relay coil are energized, the 2 relays are attracted, the alarm relay falls down, the 1# and 2# high-voltage incoming line loop power supply and the 1# and 2# main transformer protection and control device loop are disconnected; the 1# and 2# main transformer protection and control device loop is connected.
[0039] When there is a seismic wave, the main machine or the standby machine of the earthquake monitoring unit cuts off the power supply of the early warning-01 relay coil and the early warning-02 relay coil through the early warning control relay, the 2 relays fall down, the alarm relay is attracted, the 1# and 2# high-voltage incoming line loop power supply and the 1# and 2# main transformer protection and control device loop are connected; the 1# and 2# main transformer protection and control device loop is disconnected and alarms; the high-voltage circuit breaker on the traction power supply system side is tripped, the high-voltage circuit breaker is driven by the substation integrated automation system, the power supply of the railway catenary is cut off, and the running train is stopped.
[0040] When the combination device of the earthquake monitoring unit is maintained and tested, the 4 isolation relays on the top PCB integrated circuit board of the combination device are energized and attracted by manually switching the switch of the earthquake monitoring unit, the 1# and 2# high-voltage incoming line power supply and the main transformer protection and control device loop are cut off; the 1# and 2# high-voltage incoming line power supply and the main transformer protection and control device loop do not act when the early warning-01 relay and the early warning-02 relay fall down at the same time under the test condition, the alarm relay is attracted, the traction power supply system equipment is not triggered, and the normal operation of the line is not affected.
Claims
1. A railway earthquake early warning monitoring system alarm combination device, comprising a combination device box (1), characterized in that: The front panel of the combination device box is equipped with power indicator light (2) and state indicator light (3), the inside front of the combination device box is equipped with three slot PCB integrated circuit board (4), the inside front of the combination device box is installed with earthquake warning-01 safety type relay (5), earthquake warning-02 safety type relay (6), earthquake warning safety type relay (7); The back panel of the combination device box is equipped with 2 connection monitoring host master / standby controller interface (8), 1 connection traction power supply interface (9), the top of the combination device box is equipped with PCB integrated circuit board (10), the top PCB integrated circuit board of the combination device box is installed with external wiring plug (11), warning-01 control relay / master (12), warning-02 control relay / master (13), warning-01 control relay / standby (14), warning-02 control relay / standby (15), one-way power module (16), two-way power module (17), 4 isolation relays (18-21).
2. The alarm combination device of a railway earthquake early warning monitoring system according to claim 1, characterized in that: The height, width and depth of the combination device box (1) are 259.5*445*396mm, which is suitable for a standard cabinet with a size of 600*600mm, and the protection level of the combination device box (1) is IP65.
3. The alarm combination device of a railway earthquake early warning monitoring system according to claim 1, characterized in that: The side panel and the upper panel of the combination device box (1) are equipped with heat dissipation holes.
4. The alarm combination device of a railway earthquake early warning monitoring system according to claim 1, characterized in that: The earthquake warning-01 safety type relay (5), the earthquake warning-02 safety type relay (6) and the earthquake warning safety type relay (7) are sequentially inserted into the three slot PCB integrated circuit board (4) from left to right.
5. The alarm combination device of a railway earthquake early warning monitoring system according to claim 1, characterized in that: The external wiring plug (11), the warning-01 control relay / master (12), the warning-02 control relay / master (13), the warning-01 control relay / standby (14), the warning-02 control relay / standby (15), the one-way power module (16), the two-way power module (17) and the four isolation relays (18-21) are sequentially welded to the top PCB integrated circuit board (10) from left to right.