Rapid detection and alarm system after interruption of road and bridge

Abstract

The invention discloses a rapid detection and alarm system after road and bridge interruption. The rapid detection and alarm system comprises a detection line and an alarm line which are laid on one side of a road or a bridge structural member. The detection circuit comprises a power supply I, a normally-closed relay and a plurality of easily-broken connectors I which are sequentially connected in series to form a closed loop. The alarm circuit comprises a power supply II, a normally closed relay and a plurality of breakable connectors II which are sequentially connected in series to form a closed loop, and a fault reporting system and a plurality of alarms which are connected with the breakable connectors II in parallel. The easily-broken connectors are symmetrically arranged in the driving direction and used for cutting off a line when a road surface collapses or a bridge is broken. The normally-closed relay is used for being communicated with the alarm circuit when the detection circuit is cut off. The alarm and the fault reporting system are used for giving an alarm. When the road surface is collapsed, the detection line is synchronously interrupted at the road surface breakpoint, and the alarm line in front of the breakpoint begins to work and gives an alarm to a vehicle running on the road, so that the vehicle is prevented from entering the road breakpoint to cause danger.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of traffic engineering, in particular to a rapid detection and alarm system after road and bridge interruption. BACKGROUND

[0002] In recent years, there have been many road and bridge collapse accidents in China, and the accidents have caused many cars to fall from the road and bridge, resulting in serious casualties. From the accident, the collapse of the road and bridge not only causes the destruction of the engineering structure facilities, but also causes a large number of casualties. Since there are still vehicles driving on the road during operation, in the case of limited or difficult to distinguish the road conditions in front of the vehicle in the night and the like, the driver is difficult to make a timely response to the road interruption in a short time. Therefore, the alarm to the driving vehicle after the collapse of the road and bridge is still a very important means to reduce the loss of casualties.

[0003] The existing slope monitoring system and bridge health monitoring system monitor and evaluate the engineering structure according to the monitoring data, which generally judges the structure state indirectly by collecting data, and generally can give early warning to the structure, but the precision is limited and the system response is not timely. Once the road interruption occurs, the above monitoring system cannot alarm in time, or the existing traffic system lacks timely traffic organization and management means to avoid vehicle falling accident.

[0004] In addition, there are various intelligent detection systems and wireless communication methods at present, but there are problems such as poor system stability, poor response reliability, complex networking and cooperation, and high cost. SUMMARY

[0005] The purpose of the present application is to provide a rapid detection and alarm system after road and bridge interruption, which comprises a detection line and an alarm line laid on one side of the road or the bridge structure member.

[0006] The detection line comprises a power supply I, a normally closed relay and a plurality of breakable connectors I which are connected in series to form a closed loop.

[0007] The plurality of breakable connectors I are symmetrically arranged along the driving direction of the vehicle.

[0008] When the road collapses or the bridge breaks, the breakable connector I cuts off the detection line.

[0009] When the breakable connector I cuts off the detection line, the normally closed relay is in communication with the alarm line.

[0010] The alarm line comprises a power supply II, a normally closed relay and a plurality of breakable connectors II which are connected in series to form a closed loop, and a fault reporting system and a plurality of alarms in parallel with the breakable connector II.

[0011] The plurality of breakable connectors II are symmetrically arranged along the driving direction of the vehicle.

[0012] When the road collapses or the bridge breaks, the easy-to-break connector II cuts off the alarm line behind the collapse point or the breaking point.

[0013] When the normally closed relay connects the alarm line, the alarm gives an alarm.

[0014] When the normally closed relay connects the alarm line, the fault reporting system gives an alarm to the road management end.

[0015] Further, the vehicle will pass through the power supply I / power supply II, the normally closed relay, the fault reporting system and the easy-to-break connector I / easy-to-break connector II in turn during driving.

[0016] Further, the distance between adjacent easy-to-break connectors I / easy-to-break connectors II is less than 10m.

[0017] The distance between adjacent alarms is less than 10m.

[0018] Further, the detection line and the alarm line are laid on the ground or the bridge structure member, and a plurality of line fixing points for fixing the lines are arranged at intervals.

[0019] The fixing points are located between adjacent easy-to-break connectors, and the distance between adjacent fixing points is equal to the distance between adjacent easy-to-break connectors.

[0020] Further, the easy-to-break connector I includes a socket, a plug, a striker clamp, a striker contact, a spring limiter and a rubber ring.

[0021] One end of the socket is provided with a connecting groove for accommodating the plug.

[0022] The bottom of the connecting groove is provided with a plurality of striker clamps, the sidewalls are symmetrically provided with fixing grooves for fixing the spring limiters at both ends, and a rubber ring is arranged on the sidewall close to the side of the connecting groove.

[0023] The spring limiter includes a spring and a limiting pin, and the two ends of the spring are connected with the fixing groove and the limiting pin respectively.

[0024] A plurality of striker contacts corresponding to the striker clamps are arranged on one end of the plug close to the striker clamps, and limiting grooves are symmetrically arranged on the sidewalls.

[0025] Under normal circumstances, the plug is located in the connecting groove, and the striker contacts and the limiting pins are inserted into the striker clamps and the limiting grooves respectively.

[0026] When the road collapses or the bridge breaks, the plug is pulled out of the connecting groove under the action of tension, and at the same time, the striker contacts and the limiting pins slide out of the striker clamps and the limiting grooves respectively.

[0027] The easy-to-break connector I and the easy-to-break connector II are of the same structure.

[0028] Further, the normally closed relay comprises an open mode and a closed mode.

[0029] Under normal circumstances, the normally closed relay is in the open mode, at this time, the detection line is in a connected state, and the alarm line is in a disconnected state.

[0030] When the road collapses or the bridge breaks, the normally closed relay is in the closed mode, at this time, the detection line and the alarm line are cut off, and the alarm line before the breakpoint is in a connected state.

[0031] Further, the detection line 1 and the alarm line 1 are connected by using the same group of cables.

[0032] Further, the installation mode of the detection line and the alarm line comprises a single-line mode and a multi-line mode.

[0033] The laying length of the single-line mode is determined by the power supply and the alarm power consumption, when it is the single-line mode, the lengths of the detection line and the alarm line are greater than 500 m.

[0034] The laying length of the multi-line mode is determined by the line installation length, the installation condition, the power supply condition and the alarm distance of the vehicle, when it is the multi-line mode, the adjacent two lines have an overlapping section, and the length of the overlapping section is greater than the braking reaction distance of the vehicle.

[0035] Further, N1 groups of detection lines are synchronously arranged in the system, for preventing abnormal interruption of the detection line.

[0036] N2 normally closed relays are arranged on each detection line, and the N2 normally closed relays are connected in parallel in the alarm line, for preventing failure of the normally closed relay.

[0037] The alarm line comprises N3 alarms, the N3 alarms are connected in parallel in the alarm line, and each parallel line is a separate cable, for preventing abnormal interruption of the alarm line.

[0038] Further, the power supply I / power supply II comprises a storage battery and a solar panel.

[0039] The solar panel is used for supplying power for the detection line and the alarm line during the day.

[0040] The storage battery is used for supplying power for the detection line and the alarm line at night, and the power can support the alarm to work for at least 1 hour.

[0041] The technical effect of the present application is self-evident, and the beneficial effects of the present application are as follows:

[0042] 1. The present invention proposes a rapid detection and early warning system for road and bridge interruptions, which can instantly detect road interruptions and issue warnings to vehicles that have not yet reached the interruption point when a road collapse occurs, effectively preventing accidents from happening.

[0043] 2. The detection and alarm system of this invention is easy to install, low in cost, and highly reliable. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall detection and alarm system.

[0045] Figure 2 A schematic diagram of the multi-segment monitoring setup;

[0046] Figure 3 A schematic diagram of the test circuit design;

[0047] Figure 4 A schematic diagram of the alarm circuit design;

[0048] Figure 5 This is a schematic diagram of a fragile connector;

[0049] Figure 6 This is a schematic diagram of the route;

[0050] Figure 7 This is a schematic diagram of the monitoring design for a detection and alarm system.

[0051] In the diagram: Detection circuit 1; Power supply I 101; Normally closed relay 102; Breakable connector I 103; Alarm circuit 2; Power supply II 201; Breakable connector II 202; Fault reporting system 203; Alarm 204; Socket 3; Plug 4; Snap pin clamp 5; Snap pin contact 6; Spring limiter 7; Spring 701; Limit pin 702; Rubber ring 8; Fixing point 9. Detailed Implementation

[0052] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0053] Example 1:

[0054] See Figure 3 , Figure 4 A rapid detection and alarm system for road and bridge interruptions includes a detection line 1 and an alarm line 2 laid on one side of the road or on the structural components of the bridge.

[0055] The detection circuit 1 comprises a power supply I 101, a normally closed relay 102 and a plurality of breakable connectors I 103 connected in series to form a closed loop.

[0056] The plurality of breakable connectors I 103 are symmetrically arranged along the driving direction of the vehicle.

[0057] When the road collapses or the bridge breaks, the breakable connectors I 103 cut off the detection circuit 1.

[0058] When the breakable connectors I 103 cut off the detection circuit 1, the normally closed relay 102 is connected to the alarm circuit 2.

[0059] The alarm circuit 2 comprises a power supply II 201, the normally closed relay 102 and a plurality of breakable connectors II 202 connected in series to form a closed loop, and a fault reporting system 203 and a plurality of alarms 204 connected in parallel to the breakable connectors II 202.

[0060] The plurality of breakable connectors II 202 are symmetrically arranged along the driving direction of the vehicle.

[0061] When the road collapses or the bridge breaks, the breakable connectors II 202 cut off the alarm circuit 2 behind the collapse point or the breaking point.

[0062] When the normally closed relay 102 is connected to the alarm circuit 2, the alarms 204 issue an alarm.

[0063] When the normally closed relay 102 is connected to the alarm circuit 2, the fault reporting system 203 issues an alarm to the road management end.

[0064] Embodiment 2:

[0065] The main structure of the embodiment is the same as that of Embodiment 1, and further, the vehicle will pass through the power supply I 101 / power supply II 201, the normally closed relay 102, the fault reporting system 203 and the breakable connectors I 103 / breakable connectors II 202 in sequence during driving, which can effectively remind the vehicles that have not reached the breaking point when the road collapse accident occurs.

[0066] Embodiment 3:

[0067] The main structure of the embodiment is the same as that of any one of Embodiments 1-2, and further, in order to ensure accurate positioning of the collapse point or the breaking point, the spacing between adjacent breakable connectors I 103 / breakable connectors II 202 is less than 10 m.

[0068] The spacing between adjacent alarms 204 is less than 10 m.

[0069] Embodiment 4:

[0070] The main structure of this embodiment is the same as any one of embodiments 1-4, further, referring to Figure 6 The detection line 1 and the alarm line 2 are laid on the ground or the bridge structure member, and a plurality of line fixing points 9 for fixing the lines are arranged at intervals.

[0071] The fixing points 9 are located between adjacent breakable connectors, and the distance between adjacent fixing points 9 is equal to the distance between adjacent breakable connectors.

[0072] Embodiment 5:

[0073] The main structure of this embodiment is the same as any one of embodiments 1-4, further, referring to Figure 5 The breakable connector I 103 includes a socket 3, a plug 4, a striker clamp 5, a striker contact 6, a spring stopper 7, and a rubber ring 8.

[0074] One end of the socket 3 is provided with a connecting groove for accommodating the plug 4.

[0075] The bottom of the connecting groove is provided with a plurality of striker clamps 5, the sidewalls of the connecting groove are symmetrically provided with fixing grooves for fixing the spring stopper 7, and the sidewall close to the connecting groove is provided with a rubber ring 8.

[0076] The spring stopper 7 includes a spring 701 and a limiting pin 702, and the two ends of the spring 701 are connected with the fixing groove and the limiting pin 702, respectively.

[0077] The end of the plug 4 close to the striker clamp 5 is provided with a plurality of striker contacts 6 corresponding to the striker clamps 5, and the sidewall is symmetrically provided with limiting grooves.

[0078] Under normal circumstances, the plug 4 is located in the connecting groove, and the striker contacts 6 and the limiting pin 702 are inserted into the striker clamps 5 and the limiting grooves, respectively.

[0079] When the road collapses or the bridge breaks, the plug 4 is pulled out of the connecting groove under the action of tension, and at the same time, the striker contacts 6 and the limiting pin 702 are slid out of the striker clamps 5 and the limiting grooves, respectively, so that the detection line 1 and the alarm line 2 are both cut off.

[0080] When the detection line 1 is disconnected, a closed loop cannot be formed, and the normally closed relay is immediately powered off, changing from an open circuit state to a closed state, instantaneously connecting the alarm line, so that the alarm line 2 located in front of the collapse point or the breaking point is connected, forming a closed loop, and the fault reporting system 203 and the alarm device 204 start working.

[0081] The breakable connector I 103 and the breakable connector II 202 have the same structure.

[0082] Embodiment 6:

[0083] The main structure of this embodiment is the same as any one of embodiments 1-5, and further, the plug 4 and the socket 3 of the breakable connector are separated when the pulling force reaches a threshold value.

[0084] The size of the threshold value is determined by the breakable connector spacing, ground friction, and wire fixing method, and is adjusted by changing the spring 701 stiffness, limiting groove curvature, and depth.

[0085] Embodiment 7:

[0086] The main structure of this embodiment is the same as any one of embodiments 1-6, and further, the normally closed relay 102 includes an open mode and a closed mode.

[0087] Under normal circumstances, the normally closed relay 102 is in the open mode, at which time the detection line 1 is in a connected state and the alarm line 2 is in a disconnected state.

[0088] When the road collapses or the bridge breaks, the normally closed relay 102 is in the closed mode, at which time the detection line 1 and the alarm line 2 are cut off, and the alarm line 2 before the break is in a connected state.

[0089] Embodiment 8:

[0090] The main structure of this embodiment is the same as any one of embodiments 1-7, and further, the detection line 1 and the alarm line 2 are connected using the same set of cables.

[0091] Embodiment 9:

[0092] The main structure of this embodiment is the same as any one of embodiments 1-8, and further, referring to Figure 1 , Figure 2 , the installation method of the detection line 1 and the alarm line 2 includes a single line and multiple lines.

[0093] The laying length of the single line is determined by the power supply and the alarm power consumption, and when it is a single line, the lengths of the detection line 1 and the alarm line 2 are greater than 500m.

[0094] The laying length of the multiple lines is determined by the line installation length, installation conditions, power supply conditions, and vehicle alarm distance, and when it is a multiple line, the adjacent two lines have an overlapping section, and the length of the overlapping section is greater than the vehicle braking reaction distance.

[0095] Embodiment 10:

[0096] The main structure of this embodiment is the same as any one of embodiments 1-9, and further, referring to Figure 7 , N1 sets of detection lines 1 are provided in the system to prevent abnormal interruption of the detection line.

[0097] Each detection line 1 is provided with N2 normally closed relays 102, and the N2 normally closed relays 102 are connected in parallel in the alarm line 2, for preventing the normally closed relays 102 from malfunctioning.

[0098] The alarm line 2 includes N3 alarms 204, and the N3 alarms 204 are connected in parallel in the alarm line 2, and each parallel line is a separate cable, for preventing abnormal interruption of the alarm line.

[0099] Embodiment 11

[0100] The main structure of the embodiment is the same as any one of embodiments 1-10, and further, the power supply I 101 / power supply II 201 includes a storage battery and a solar panel.

[0101] The solar panel is used to supply power for the detection line 1 and the alarm line 2 during the day.

[0102] The storage battery is used to supply power for the detection line 1 and the alarm line 2 at night, and the power can support the operation of the alarm 204 for at least 1 hour.

[0103] Embodiment 12

[0104] The main structure of the embodiment is the same as any one of embodiments 1-11, and further, a working principle of a rapid detection and alarm system after interruption of a road or bridge is as follows:

[0105] The core principle of the system is to control whether the alarm line is connected through the normally closed relay.

[0106] Step 1: When collapse occurs at a certain place on the road or a bridge is broken, because the detection line and the alarm line are fixed on the road fixed point or the bridge structure member, the line is pulled by the carrier and the easy-to-break connector is pulled off, so the line is immediately broken with the road.

[0107] Step 2: When the detection line is disconnected, the detection line cannot form a loop, the normally closed relay is powered off, and it is immediately changed from an open state to a closed state, and the alarm line is immediately connected.

[0108] Step 3: After the main line of the alarm line is connected, the part of the road after the breakpoint does not participate in the work, and the alarm before the breakpoint is powered on, prompting the vehicles on the road to slow down or stop through light and alarm sound (the alarm mode is designed and formulated by the traffic management part according to relevant laws and regulations);

[0109] At the same time, the fault reporting system is powered on and works, and sends an alarm to the road management part through wired network, wireless network and other ways, and timely handles the accident.

[0110] Embodiment 13

[0111] The main structure of the embodiment is the same as any one of embodiments 1-12, and further, a mounting method of a road bridge interruption rapid detection and alarm system is provided:

[0112] (1) Single line installation method

[0113] In the system, the detection line 1 and the alarm line 2 are laid synchronously on one side of the road to be detected, and the detection line 1 and the alarm line 2 can be located in the same cable.

[0114] The line laying is described in Figure 1 , the power supply is at the near end, and the line is at the far end;

[0115] The laying length of a single line is determined by the power supply, the line group, and the alarm power consumption, and the minimum length of a single line should not be less than 500m.

[0116] (2) Multiple line installation method

[0117] Due to various factors such as line installation length, installation conditions, and power supply conditions (reason 1), or the distance between the road breakpoint and the monitoring line start point is too close, and the alarm distance for vehicles is insufficient (reason 2), a road section may need multiple lines to relay to complete full coverage monitoring.

[0118] The line laying is described in Figure 2 , so that the adjacent two lines have a certain overlapping section, and the pre-warning length of the overlapping section is not less than the vehicle braking reaction distance (the value is determined by the relevant traffic safety specifications), to ensure that if the breakpoint occurs in the overlapping section, the monitoring line 2 in the following figure may not work, but the monitoring line 1 can still work.

[0119] Embodiment 14:

[0120] The main structure of the embodiment is the same as any one of embodiments 1-13, and further, it includes a detection line 1 and an alarm line 2.

[0121] The detection line and the alarm line should be reliably fixed to the ground, or the detection line and the alarm line are the same cable, and the cable should be reliably fixed to the ground. The line is fixed to the ground, as described in Figure 6 When the road surface breaks, the line breakpoint can be limited to the breakable connector between the fixed points on both sides of the road breakpoint, so as to ensure the accuracy of the breakpoint position and the accuracy of the alarm section. The line fixed point should be located at the midpoint between the two breakable connectors, that is, the spacing is the same as the breakable connector. The line fixing is completed according to the general wire fixing method, and should meet the requirements of rust prevention and reliable fixation.

[0122] The detection line 1 is an important part of the system, as described in Figure 3The low-voltage direct-current power supply, the normally closed relay, the frangible connector and the wire are composed. When the frangible connector is disconnected due to the road surface interruption, the detection line is instantaneously interrupted, the relay is changed from the open state to the closed state, and the sending signal is completed.

[0123] Referring to Figure 4 The alarm line 2 is composed of a power supply, a relay control valve, a fault reporting system, a frangible connector, an alarm and a wire. In the system, the alarm line receives the signal sent by the detection line (the normally closed relay connects the alarm line), and the alarm sends an alarm to the vehicle that has not yet driven to the breakpoint on the road through light or alarm sound, prompting to slow down or stop.

[0124] The alarm can be an alarm light or an alarm sound, and a reliable, low failure rate and high warning efficiency should be adopted, and the spacing is determined by the relevant traffic safety regulations and the power supply load capacity.

[0125] The frangible connector should be arranged on the detection line and the alarm line at a certain interval, and the interval of the frangible connector on the detection line is the same as that of the frangible connector on the alarm line, and the interval is determined by the road danger or the length of the bridge structural member.

[0126] The frangible connector is an important part of the system, which needs to meet the three requirements of reliable conduction, reliable breaking under threshold tension and waterproof. Specifically, referring to Figure 5 :

[0127] ①The conduction part is composed of a striker contact and a striker clamp. When the connector plug is inserted into the connector socket, the striker contact is inserted into the striker clamp with elastic clamping to form a reliable conduction connection.

[0128] ②The spring stopper pushes the limit pin into the connector plug limit groove through the spring to realize the limit.

[0129] When the wires at both ends of the connector are subjected to tension, the limit pin exerts a counter force in the limit groove. When the tension exceeds the spring pushing force, the pin slides out of the limit groove, and the connector is disconnected.

[0130] ③By adjusting the spring stiffness, limit groove curvature and depth of the spring stopper, the breaking force threshold can be adjusted.

[0131] ④When designing the system, the breaking force threshold needs to be determined comprehensively according to the frangible connector interval, ground friction, wire fixing method, etc.

[0132] Embodiment 15:

[0133] The main structure of this embodiment is the same as any one of embodiments 1-14. Further, there are three possible system failure types in the system:

[0134] ①Detection line abnormal interruption: the detection line may be interrupted due to non-road surface interruption reasons, such as wild animal bites, human damage, durable corrosion failure, etc., so false positives may occur;

[0135] ②Relay failure: the relay fails to turn on the alarm line;

[0136] ③Abnormal interruption of alarm line: after the abnormal interruption of the alarm line, the siren cannot work.

[0137] The monitoring design of the present application is described in Figure 7 :

[0138] To avoid the influence of the above fault ① on the reliability of the system, the present application designs multiple groups (≥2 groups) of detection lines (see Figure 7 detection line 1 and detection line 2), when one of the detection lines is disconnected abnormally, but the remaining detection lines are not disconnected, since the relay groups of multiple detection lines are in series, the alarm line will not be powered on. Only when all detection lines are disconnected, the relay group connects the alarm line.

[0139] To avoid the influence of the above fault ② on the reliability of the system, the present application introduces multiple relays (≥2) for each detection line, and the relay group of each detection line is in parallel. When the detection line is interrupted, and one of the relays in the relay group fails to turn to the closed state, the remaining relays can still work normally and connect the alarm line.

[0140] To avoid the influence of the above fault ③ on the reliability of the system, the present application introduces multiple parallel lines in the alarm line, and each line should be a separate cable. When one of the power supply cables is interrupted, the remaining cables can still be powered on normally.

[0141] Example 16:

[0142] The main structure of this embodiment is the same as any one of examples 1-15, further, the power supply system of the system can adopt the scheme containing: ① battery + solar panel; ② battery + power supply from nearby street lamps.

[0143] The battery can support the alarm system for at least 1 hour, that is, to ensure normal alarm operation before the road rescue team arrives.

Claims

1. A rapid detection and alarm system for road and bridge interruptions, characterized in that: The utility model relates to a kind of detection circuit (1) and alarm circuit (2) for road or bridge structure component. The detection circuit (1) includes power supply I (101), normally closed relay (102) and a plurality of easily broken connectors I (103) in series. A plurality of easily broken connectors I (103) are symmetrically arranged along the driving direction of the vehicle. When the road collapses or the bridge breaks, the easily broken connector I (103) cuts off the detection circuit (1). When the easily broken connector I (103) cuts off the detection circuit (1), the normally closed relay (102) is connected with the alarm circuit (2). The alarm circuit (2) includes power supply II (201), normally closed relay (102) and a plurality of easily broken connectors II (202) in series, and fault reporting system (203) and a plurality of alarms (204) in parallel with the easily broken connector II (202). A plurality of easily broken connectors II (202) are symmetrically arranged along the driving direction of the vehicle. When the road collapses or the bridge breaks, the easily broken connector II (202) cuts off the alarm circuit (2) behind the collapse point or the breaking point. When the normally closed relay (102) is connected with the alarm circuit (2), the alarm (204) gives an alarm. When the normally closed relay (102) is connected with the alarm circuit (2), the fault reporting system (203) gives an alarm to the road management end.

2. A system for rapid detection and alarm after interruption in road bridges according to claim 1 characterized in that: During driving, the vehicle will pass through power supply I (101) / power supply II (201), normally closed relay (102), fault reporting system (203) and easily broken connector I (103) / easily broken connector II (202) in sequence.

3. A system for rapid detection and alarm after interruption in road bridges according to claim 1 characterized in that: The distance between adjacent easily broken connectors I (103) / easily broken connectors II (202) is less than 10 m. The distance between adjacent alarms (204) is less than 10 m.

4. A system for rapid detection and alarm after interruption in road bridges according to claim 1 characterized in that: The detection circuit (1) and the alarm circuit (2) are laid on the ground or the bridge structure component, and a plurality of line fixing points (9) of fixed lines are arranged at intervals. The fixing point (9) is located between adjacent easily broken connectors, and the distance between adjacent fixing points (9) is equal to the distance between adjacent easily broken connectors.

5. A system for rapid detection and alarm after interruption in road bridges according to claim 1 characterized in that: The easily broken connector I (103) includes socket (3), plug (4), striker collet (5), striker contact (6), spring limiter (7) and rubber ring (8). One end of the socket (3) is provided with a connecting groove for accommodating the plug (4). The bottom of the connecting groove is provided with a plurality of striker collets (5), the sidewalls are symmetrically provided with fixing grooves for fixing the spring limiter (7), and the sidewall close to the connecting groove is provided with a rubber ring (8). The spring limiter (7) includes spring (701) and limiting pin (702), and the two ends of the spring (701) are connected with the fixing groove and the limiting pin (702) respectively. The end of the plug (4) close to the striker collet (5) is provided with a plurality of striker contacts (6) corresponding to the striker collets (5) one by one, and the sidewall is symmetrically provided with limiting grooves. In normal circumstances, the plug (4) is located in the connecting groove, the striker contact (6) and the limiting pin (702) are inserted into the striker clamp (5) and the limiting groove, respectively; When the road collapses or the bridge breaks, the plug (4) is pulled out of the connecting groove under the action of tension, and at the same time, the striker contact (6) and the limiting pin (702) are respectively slid out of the striker clamp (5) and the limiting groove; The easy-to-break connector I (103) and the easy-to-break connector II (202) are the same in structure.

6. A system for rapid detection and alarm after interruption in road bridges according to claim 1 characterized in that: The normally closed relay (102) includes an open mode and a closed mode. In normal circumstances, the normally closed relay (102) is in the open mode, at which time the detection line (1) is in a connected state and the alarm line (2) is in a disconnected state. When the road collapses or the bridge breaks, the normally closed relay (102) is in the closed mode, at which time the detection line (1) and the alarm line (2) are cut off, and the alarm line (2) before the break point is in a connected state.

7. A system for rapid detection and alarm after interruption in road bridges according to claim 1 characterized in that: The detection line (1) and the alarm line (2) are connected using the same group of cables.

8. A system for rapid detection and alerting of road bridge disruptions according to claim 1, characterized in that: The installation mode of the detection line (1) and the alarm line (2) includes a single line and multiple lines. The laying length of the single line is determined by the power supply and the alarm power consumption. When it is a single line, the length of the detection line (1) and the alarm line (2) is greater than 500m. The laying length of the multiple lines is determined by the line installation length, installation conditions, power supply conditions and vehicle alarm distance. When it is a multiple line, the adjacent two lines have an overlapping section, and the length of the overlapping section is greater than the vehicle braking reaction distance.

9. A system for rapid detection and alerting of road bridge disruptions according to claim 1, characterized in that: N1 groups of detection lines (1) are provided in the system for preventing abnormal interruption of the detection line; N2 normally closed relays (102) are provided on each detection line (1), and the N2 normally closed relays (102) are connected in parallel in the alarm line (2) for preventing failure of the normally closed relay (102). The alarm line (2) includes N3 alarms (204), the N3 alarms (204) are connected in parallel in the alarm line (2), and each parallel line is a separate cable for preventing abnormal interruption of the alarm line.

10. A rapid detection and alarm system for road and bridge interruption according to claim 1, characterized in that: The power supply I (101) / power supply II (201) includes a storage battery and a solar panel; The solar panel is used to supply power to the detection line (1) and the alarm line (2) during the day. The storage battery is used to supply power to the detection line (1) and the alarm line (2) at night, and the power can support the alarm (24) to work for at least 1 hour.

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