Device, system and method for detecting states of turnout circuit and standby cable

Abstract

The invention discloses a device, system and method for detecting states of a turnout circuit and a standby cable, and the method comprises the steps: enabling a first driving module to drive a relay FJJ to excite when a turnout is located, and enabling a first state collection module to collect the first resistance of an X5 line and a first standby core wire; when the turnout is in a reverse position, the second driving module drives the relay DJJ to excite, so that the second state acquisition module respectively acquires second resistance of the X4 wire and the second standby core wire; and comparing the first resistor and the second resistor with a resistance preset value to judge the states of the X4 wire, the X5 wire, the first standby core wire and the second standby core wire. Whether a circuit key part of a turnout in a future state is normal or not can be detected in real time, whether a standby core wire is normal or not can be detected in real time, and influence of turnout faults on operation is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of rail transit, and in particular to a device, system and method for detecting the status of turnout circuits and spare cables. Background Technology

[0002] A turnout is a device that allows locomotives and rolling stock to switch from one track to another, and it is an important component of the track system. When arranging train routes, turnouts must provide correct indications; if a turnout indicates a circuit fault, it will cause serious operational disruptions. For such critical turnout equipment, each project includes provisions for spare cable cores during the initial design phase, allowing for rapid cable replacement and restoration of operation in the event of a turnout failure.

[0003] Existing technical solutions can only monitor whether the current position of the turnout is faulty. For example, if the turnout is in the correct position and the current position is normal, the condition of the reversing circuit cannot be predicted. If the user operates the turnout to the reverse position at this time, a fault in the reverse position will not provide any indication and the turnout cannot be returned to the correct position. Moreover, the repair time for this fault is long, which will seriously affect operations. If users could know about the reversing circuit fault in advance, they could take measures such as changing the route to avoid the impact of the fault on operations. At the same time, the existing technical solutions do not monitor whether the spare cable core wires are normal, and maintenance personnel cannot know the status of the spare core wires, which also leaves hidden dangers for emergency repairs.

[0004] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a detection device, system, and method for the status of turnout circuits and backup cables, so as to detect in real time whether the key circuit parts of the turnout are normal in the 'future state', thereby allowing users to know in advance whether the turnout is normal after operation and whether the backup core wire is normal, thus avoiding the impact of turnout failure on operation.

[0006] To achieve the above objectives, a first aspect of the present invention provides a detection device for the status of turnout circuits and spare cables, comprising: a positioning acquisition module and a reverse position acquisition module, wherein the positioning acquisition module is connected to a relay DBJ, and the reverse position acquisition module is connected to a relay FBJ, for acquiring the position status of the relay DBJ and the relay FBJ respectively; a first driving module and a second driving module, wherein the first driving module is connected to a first set of nodes of relay DJJ, and the second driving module is connected to a first set of nodes of relay FJJ, for driving relay DJJ or relay FJJ respectively according to the position status; and a first status acquisition module, which, through the second and third sets of nodes of relay FJJ, is connected to the relay to be detected. A first backup core wire in a switch circuit and a backup cable is connected in series; a second status acquisition module is connected in series with the second switch circuit and the second backup core wire in the backup cable to be detected through the second and third sets of nodes of the relay DJJ; when the switch is in the correct position, the second drive module drives the relay FJJ to be energized and disconnects the energization of the relay FBJ, so that the first switch circuit and the first backup core wire connected in series with the first status acquisition module and the relay FJJ are connected; or when the switch is in the reverse position, the first drive module drives the relay DJJ to be energized and disconnects the energization of the relay DBJ, so that the second switch circuit and the second backup core wire connected in series with the second status acquisition module and the relay DJJ are connected.

[0007] In one embodiment, the detection device further includes: a fixed-operation acquisition module and a reverse-operation acquisition module, wherein the fixed-operation acquisition module is connected to a relay DCJ and the reverse-operation acquisition module is connected to a relay FCJ, and is used to acquire the operating status of the relay DCJ and the relay FCJ respectively; during turnout operation, the relays DCJ and FCJ are disconnected according to the operating status.

[0008] In one embodiment, the detection device further includes a power acquisition module, which is connected to the relays DBJ, FBJ, DCJ, and FCJ respectively, for supplying power to the relays DBJ, FBJ, DCJ, and FCJ.

[0009] In one embodiment, the positioning acquisition module acquires data through the front contact of the third group of nodes of the relay DBJ; the reverse position acquisition module acquires data through the front contact of the third group of nodes of the relay FBJ; the fixed operation acquisition module acquires data through the rear contact of the third group of nodes of the relay DCJ; and the reverse operation acquisition module acquires data through the rear contact of the third group of nodes of the relay FCJ.

[0010] In one embodiment, the output voltage of the power acquisition module is 12V DC.

[0011] In one embodiment, the detection device further includes a CAN communication interface module, which is connected to at least the first status acquisition module and the second status acquisition module, for sending acquisition and alarm information.

[0012] A second aspect of the present invention provides a detection system for the status of turnout circuits and spare cables, comprising the detection device described above for detecting the X5 and X4 wires in a five-wire turnout. The X5 and X4 wires are respectively connected to an outdoor cable box and an indoor turnout assembly via a junction box. The first status acquisition module includes a first route and a second route. The first route is connected in series with the first spare core wire in the junction box and the X5 wire in the outdoor cable box via the front contact of the second set of nodes of the relay FJJ. The second route is connected to the first side terminal of the X5 wire in the indoor turnout assembly via the front contact of the third set of nodes of the relay FJJ. The second status acquisition module includes a third route and a fourth route. The third route is connected in series with the second spare core wire in the junction box and the X4 wire in the outdoor cable box via the front contact of the second set of nodes of the relay DJJ. The fourth route is connected to the second side terminal of the X4 wire in the indoor turnout assembly via the front contact of the third set of nodes of the relay DJJ.

[0013] In one embodiment, the first state acquisition module and the second state acquisition module are resistance acquisition modules, used to acquire the resistance of the X5 line, the first spare core wire, the X4 line and the second spare core wire.

[0014] A third aspect of the present invention provides a method for detecting the status of a turnout circuit and a spare cable, implemented using the system described above for detecting the status of a turnout circuit and a spare cable, comprising: when the turnout is in the correct position, a first driving module drives the relay FJJ to energize, causing the first status acquisition module to acquire the first resistance of the X5 line and the first spare core wire respectively; when the turnout is in the reverse position, a second driving module drives the relay DJJ to energize, causing the second status acquisition module to acquire the second resistance of the X4 line and the second spare core wire respectively; comparing the first resistance and the second resistance with preset resistance values ​​to determine the status of the X4 line, the X5 line, the first spare core wire, and the second spare core wire.

[0015] In one embodiment, when the first resistor or the second resistor is less than the preset resistance value, the state of the X5 line and the first spare core wire is determined to be normal, or the state of the X4 line and the second spare core wire is normal; when the first resistor or the second resistor is greater than the preset resistance value, the state of the X5 line and the first spare core wire is determined to be faulty, or the state of the X4 line and the second spare core wire is faulty.

[0016] In one embodiment, the preset resistance value is in the range of 0~5. .

[0017] In one embodiment, when relay FJJ is energized, relay FBJ is disconnected to cut off the connection between relay FBJ and the X5 line; when relay DJJ is energized, relay DBJ is disconnected to cut off the connection between relay DBJ and the X4 line.

[0018] In one embodiment, when the turnout is operated from the position to the reverse position, and the reverse operation acquisition module detects that the relay FCJ is energized, the detection device cuts off the drive of the relay DJJ and the relay FJJ within a preset time.

[0019] In one embodiment, when the turnout is operated from the reverse position and the fixed operation acquisition module detects the excitation of the relay DCJ, the detection device cuts off the drive of the relays DJJ and FJJ within a preset time.

[0020] In one embodiment, the preset time is less than or equal to 10 ms.

[0021] Compared with the prior art, the detection device, system and method for the status of turnout circuits and spare cables provided by the present invention have at least the following beneficial effects: 1. By using the first and second status acquisition modules to detect the status of the backup core wire in real time, the problem of uncontrollable status of the backup core wire is solved, avoiding serious impacts caused by the unavailability of the backup core wire in emergency situations.

[0022] 2. The first and second state acquisition modules can also detect in real time whether the key parts of the turnout circuit are normal in the 'future state', solving the problem of not being able to give early warning of turnout circuit faults.

[0023] 3. When a turnout malfunctions, the detection system can determine whether the critical circuit parts are normal, thereby greatly reducing the scope of the fault and reducing the fault handling time. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the detection device for the status of turnout circuits and spare cables according to the present invention; Figure 2 This is a schematic diagram illustrating the working principle of the detection device for the status of turnout circuits and spare cables according to the present invention. Figure 3 A circuit diagram of an existing five-wire turnout; Figure 4 This is a circuit diagram of a detection system for the status of turnout circuits and spare cables according to a first embodiment of the present invention. Figure 5 This is a circuit diagram of a detection system for the status of turnout circuits and spare cables according to a second embodiment of the present invention. Reference numerals: 100-Detection device, 101-Positioning acquisition module, 102-Reverse position acquisition module, 103-First drive module, 104-Second drive module, 105-First status acquisition module, 151-First route, 152-Second route, 106-Second status acquisition module, 161-Third route, 162-Fourth route, 107-Fixed operation acquisition module, 108-Reverse operation acquisition module, 109-CAN communication interface module, 110-Acquisition power supply module, 201-Outdoor cable box, 202-Indoor turnout assembly, 203-Distribution cabinet, 231-First spare core wire, 232-Second spare core wire. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of the apparatus, system, and method for detecting the status of turnout circuits and spare cables proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of this invention. Please refer to the drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0026] Please see Figure 1 and Figure 2The present invention provides a detection device 100 for the status of turnout circuits and spare cables, comprising: a positioning acquisition module 101 and a reverse position acquisition module 102, wherein the positioning acquisition module 101 is connected to a DBJ (turnout operating relay), and the reverse position acquisition module 102 is connected to a FBJ (turnout operating relay), for acquiring the position status of the DBJ and FBJ respectively; a first drive module 103 and a second drive module 104, wherein the first drive module 103 is connected to a first set of nodes of a DJJ (positioning detection relay). The second driving module 104 is connected to the first set of nodes of the relay FJJ (reverse position detection relay), and is used to drive the relay DJJ or the relay FJJ according to the position state; the first state acquisition module 105 is connected in series with the first switch circuit to be tested and the first spare core wire in the spare cable through the second and third sets of nodes of the relay FJJ; the second state acquisition module 106 is connected in series with the second switch circuit to be tested and the second spare core wire in the spare cable through the second and third sets of nodes of the relay DJJ, so as to realize the detection of the switch circuit and the spare core wire.

[0027] Among them, such as Figure 2 As shown, the detection device 100 also includes a power acquisition module 110, which is connected to the relays DBJ and FBJ respectively, and is used to supply power to the relays DBJ and FBJ. The power acquisition module 110 acquires the raised or lowered state of the relays DBJ and FBJ through its output voltage. When the turnout is indicated, the first drive module 103 or the second drive module 104 in the detection device 100 can drive the corresponding relay DJJ or FJJ to energize, thereby realizing real-time detection of the turnout circuit and spare core wire.

[0028] Specifically, when the turnout is in the correct position, the second drive module 104 energizes the relay FJJ and disconnects the energizing of the relay FBJ, thus connecting the first turnout circuit and the first spare core wire, which are connected in series with the first state acquisition module 105 and the relay FJJ. When the turnout is in the reverse position, the first drive module 103 energizes the relay DJJ and disconnects the energizing of the relay DBJ, thus connecting the second turnout circuit and the second spare core wire, which are connected in series with the second state acquisition module 106 and the relay DJJ. Disconnecting the energizing of the relay FBJ or the relay DBJ when the relay FJJ or the relay DJJ is energized avoids the detection device 100's acquisition from affecting the turnout indication circuit. The turnout indication circuit refers to the circuit that feeds back the actual position status of the turnout to the signal system to reflect the turnout position.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the detection device 100 further includes a fixed-operation acquisition module 107 and a reverse-operation acquisition module 108. The fixed-operation acquisition module 107 is connected to a DCJ (turnout operation relay), and the reverse-operation acquisition module 108 is connected to a FCJ (turnout operation relay), respectively used to acquire the operating states of the DCJ and FCJ. During turnout operation, the DCJ and FCJ are disconnected according to the operating states, thereby disconnecting the acquisition circuit from the acquired circuit, thus preventing the acquisition by the detection device 100 from affecting the turnout control circuit. Specifically, the DCJ and FCJ are connected to the acquisition power module 110, which supplies power to the DCJ and FCJ to acquire the energized or de-energized states of the DBJ and FBJ. The turnout control circuit refers to the indoor relay logic circuit, i.e., the relay circuit part that controls turnout switching after receiving interlocking commands.

[0030] In some embodiments, such as Figure 2 As shown, the output voltage of the power acquisition module 100 is 12V DC, which is distinct from the existing 24V of the indicator circuit. Even after mixing the power supplies, it will not cause the relay to malfunction. In this embodiment, the positioning acquisition module 101 acquires data through the front contact of the third group of nodes of the relay DBJ; the reverse position acquisition module 102 acquires data through the front contact of the third group of nodes of the relay FBJ; the fixed operation acquisition module 107 acquires data through the rear contact of the third group of nodes of the relay DCJ; and the reverse operation acquisition module 108 acquires data through the rear contact of the third group of nodes of the relay FCJ.

[0031] In some embodiments, such as Figure 1 As shown, the detection device 100 also includes a CAN communication interface module 109, which is connected to at least the first status acquisition module 105 and the second status acquisition module 106, and is used to send acquisition and alarm information.

[0032] Figure 3The diagram shows the circuit diagram of an existing five-wire turnout. The five-wire turnout includes lines X1 to X5, which are connected to an outdoor cable box 201 and an indoor turnout assembly 202 via a distribution cabinet. In the existing technology, the voltage of lines X1 to X5 is collected in real time by the distribution cabinet 203. When the turnout is in position, faults in lines X1, X2, X4, and X3 can be determined (the specific determination method can be obtained from general knowledge and will not be described here). However, the status of line X5 cannot be detected. This is because when the turnout is in position, the collection point of line X5 is disconnected both indoors and outdoors, and no information can be collected from this collection point. Therefore, the status of line X5 cannot be detected. Similarly, when the turnout is in the reverse position, faults in lines X1, X2, X3, and X5 can be identified (the specific identification methods can be obtained from general knowledge and will not be described here), but the status of line X4 cannot be detected. This is because when the turnout is in the reverse position, the data acquisition point for line X4 is disconnected both indoors and outdoors, and no information can be collected from this data acquisition point, so the status of line X4 cannot be detected.

[0033] Based on the aforementioned deficiencies, the detection device 100 provided in the above-described embodiment of the present invention is used to detect the X5 and X4 lines. For example... Figure 4 As shown, Figure 4 This is a circuit diagram of a detection system for the status of turnout circuits and spare cables according to a first embodiment of the present invention. The first embodiment provides a detection system for the status of turnout circuits and spare cables, used to detect the X5 wire in a five-wire turnout. Specifically, the system involves connecting the relay FJJ node in series with the X5 wire. The first status acquisition module 105 includes a first route 151 and a second route 152. The first route 151 is connected in series with the first spare core wire 231 in the distribution cabinet 203 and the X5 wire in the outdoor cable box 201 through the front contact of the second set of nodes of the relay FJJ. The second route 152 is connected to the first side terminal 05-5 of the X5 wire in the indoor turnout assembly 202 through the front contact of the third set of nodes of the relay FJJ, forming a detection circuit for the turnout circuit of the X5 wire and the first spare core wire 231. When the turnout is in position, the detection device 100 drives the relay FJJ to be energized, thereby activating the detection circuit of the first state acquisition module 105 to acquire the X5 line and the first spare core wire 231, thereby realizing the state detection of the X5 line and the first spare core wire 231.

[0034] Similarly, as Figure 5 As shown, Figure 5This is a circuit diagram of a detection system for the status of turnout circuits and spare cables according to a second embodiment of the present invention. The second embodiment provides a detection system for the status of turnout circuits and spare cables, used to detect the X4 wire in a five-wire turnout. Specifically, the system involves connecting the relay DJJ node in series with the X4 wire. The second status acquisition module 106 includes a third route 161 and a fourth route 162. The third route 161 is connected in series with the second spare core wire 232 in the junction box 203 and the X4 wire in the outdoor cable box 201 through the front contact of the second set of nodes of the relay DJJ. The fourth route 162 is connected to the second side terminal 05-4 of the X4 wire in the indoor turnout assembly 202 through the front contact of the third set of nodes of the relay DJJ, forming a detection circuit for the turnout circuit of the X4 wire and the second spare core wire 232. When the turnout is in the reverse position, the detection device 100 drives the relay DJJ to be energized, thereby turning on the detection circuit of the second state acquisition module 106 to acquire the X4 line and the second spare core wire 232, thereby realizing the state detection of the X4 line and the second spare core wire 232.

[0035] It should be noted that the first status acquisition module 105 and the second status acquisition module 106 can be connected to the five-wire turnout simultaneously, or they can be connected to the five-wire turnout independently as needed to detect the status of the turnout circuit and the spare cable. In some embodiments, the first status acquisition module 105 and the second status acquisition module 106 are resistance acquisition modules, used to acquire the resistance of the X5 line, the first spare core wire 231, the X4 line, and the second spare core wire 232. The working principle of the resistance acquisition module is similar to that of a multimeter; by measuring the resistance value of the corresponding detection circuit, the working status of the corresponding turnout circuit and the spare core wire is determined.

[0036] based on Figure 4 and Figure 5 The system shown is for detecting the status of turnout circuits and spare cables. An embodiment of the present invention also provides a method for detecting the status of turnout circuits and spare cables. The method includes: when the turnout is in the correct position, the first drive module 103 drives the relay FJJ to energize, causing the first status acquisition module 105 to acquire the first resistance R1 of the X5 line and the first spare core wire 231 respectively; when the turnout is in the reverse position, the second drive module 104 drives the relay DJJ to energize, causing the second status acquisition module 106 to acquire the second resistance R2 of the X4 line and the second spare core wire 232 respectively; the first resistance R1 and the second resistance R2 are compared with preset resistance values ​​to determine the status of the X4 line, the X5 line, the first spare core wire, and the second spare core wire.

[0037] Specifically, when the first resistor R1 is less than the preset resistance value, the state of the X5 line and the first spare core wire 231 is determined to be normal; when the second resistor R2 is less than the preset resistance value, the state of the X4 line and the second spare core wire 232 is determined to be normal. When the first resistor R1 is greater than the preset resistance value, the state of the X5 line and the first spare core wire 231 is determined to be faulty; when the second resistor R2 is greater than the preset resistance value, the state of the X4 line and the second spare core wire 232 is determined to be faulty, and an alarm signal is output externally through the CAN communication interface module 109. As an optional embodiment, the range of the preset resistance value is 0~5. .

[0038] Furthermore, when relay FJJ is energized, relay FBJ is disconnected to cut off the connection between relay FBJ and the X5 line, thereby eliminating the influence of the acquisition process on the FBJ excitation circuit; when relay DJJ is energized, relay DBJ is disconnected to cut off the connection between relay DBJ and the X4 line, thereby eliminating the influence of the acquisition process on the DBJ excitation circuit.

[0039] In some embodiments, when the turnout is operated from the locating position to the reversing position, and the reversing acquisition module 108 detects the energization of the relay FCJ, the detection device 100 cuts off the drive of the relays DJJ and FJJ within a preset time (not greater than 10 ms) to ensure that the energization of the relays DJJ and FJJ is cut off before the relays 1DQJ / 1DQJF are energized, thus avoiding the connection of 380V voltage to the first state acquisition module 105 and the second state acquisition module 106 of the detection device 100, and avoiding damage to the detection device 100.

[0040] Similarly, in some embodiments, when the turnout is operated from the reverse position to the positioning position, and the positioning acquisition module 107 acquires the excitation of the relay DCJ, the detection device 100 cuts off the drive of the relay DJJ and the relay FJJ within a preset time (not greater than 10 ms) to ensure that the excitation of the relay DJJ and the relay FJJ is cut off before the relay 1DQJ / 1DQJF is energized, so as to avoid the connection of 380V voltage to the first state acquisition module 105 and the second state acquisition module 106 of the detection device 100 and avoid damage to the detection device 100.

[0041] Furthermore, when the turnout is planned to be in the correct or reverse position, but the actual position of the turnout is opposite to the planned position, the detection device 100 can generate an audible and visual alarm signal by detecting the status of the corresponding turnout to remind staff to avoid operating the turnout, thereby preventing the turnout malfunction from having a significant impact on operations.

[0042] In summary, the detection device, system, and method for the status of turnout circuits and spare cables of the present invention, through the real-time detection of the spare core wire status by the first status acquisition module 105 and the second status acquisition module 106, solves the problem of uncontrollable spare core wire status and avoids serious consequences caused by the unavailability of spare core wires in emergencies. Simultaneously, the first status acquisition module 105 and the second status acquisition module 106 can also detect in real-time whether the critical parts of the turnout circuit are normal in the 'future state,' solving the problem of not being able to provide early warning of turnout circuit faults. Furthermore, when a turnout fault occurs, the detection system can determine whether the critical circuit parts are normal, thereby greatly reducing the scope of the fault and shortening the fault handling time.

[0043] It should be noted that, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only the expressly listed elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0044] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A detection device for the status of a turnout circuit and a reserve cable, characterized in that, Comprise: Position acquisition module and anti-position acquisition module, the position acquisition module is connected with relay DBJ, the anti-position acquisition module is connected with relay FBJ, is respectively used for collecting position state of relay DBJ and relay FBJ; First drive module and second drive module, the first drive module is connected with the first group of nodes of relay DJJ, the second drive module is connected with the first group of nodes of relay FJJ, is respectively used for driving relay DJJ or relay FJJ according to the position state; First state acquisition module, through the second, third group of nodes of relay FJJ, with the first standby core line in standby cable and the first turnout circuit to be detected in series connection; Second state acquisition module, through the second, third group of nodes of relay DJJ, with the second standby core line in standby cable and the second turnout circuit to be detected in series connection; When the turnout is in position, the second drive module drives the excitation of relay FJJ, and disconnects the excitation of relay FBJ, so that the first state acquisition module and the first turnout circuit and the first standby core line connected in series with relay FJJ are turned on; Or when the turnout is in anti-position, the first drive module drives the excitation of relay DJJ, and disconnects the excitation of relay DBJ, so that the second state acquisition module and the second turnout circuit and the second standby core line connected in series with relay DJJ are turned on.

2. The detection device of claim 1, wherein Also include: Fixed operation acquisition module and anti-operation acquisition module, the fixed operation acquisition module is connected with relay DCJ, the anti-operation acquisition module is connected with relay FCJ, is respectively used for collecting operation state of relay DCJ and relay FCJ;When the turnout is operated, the relay DJJ and the relay FJJ are cut off according to the operation state.

3. The detection device of claim 2, wherein, Also include acquisition power module, is connected with relay DBJ, relay FBJ, relay DCJ and relay FCJ respectively, for supplying power to relay DBJ, relay FBJ, relay DCJ and relay FCJ.

4. The detection device of claim 3, wherein The position acquisition module is collected through the front contact point of the third group of nodes of relay DBJ;The anti-position acquisition module is collected through the front contact point of the third group of nodes of relay FBJ; The fixed operation acquisition module is collected through the rear contact point of the third group of nodes of relay DCJ;The anti-operation acquisition module is collected through the rear contact point of the third group of nodes of relay FCJ.

5. The detection device of claim 3, wherein, The output voltage of the acquisition power module is DC 12V.

6. The detection device of claim 1, wherein, Also include CAN communication interface module, at least with the first state acquisition module and the second state acquisition module is connected, for sending acquisition and alarm information.

7. A detection system for turnout circuit and standby cable state, comprising the detection device of any one of claims 1~6, for detecting X5 line and X4 line in five-wire turnout, the X5 line and the X4 line are connected with outdoor cable box and indoor turnout combination respectively through branch cabinet, characterized in that, The first state acquisition module includes a first route and a second route, the first route connects the first spare core wire in the distribution cabinet and the X5 wire in the outdoor cable box in series through the front contact point of the second group of nodes of the relay FJJ; The second route connects the first side terminal of the X5 wire in the indoor turnout combination through the front contact point of the third group of nodes of the relay FJJ; The second state acquisition module includes a third route and a fourth route, the third route connects the second spare core wire in the distribution cabinet and the X4 wire in the outdoor cable box in series through the front contact point of the second group of nodes of the relay DJJ; The fourth route connects the second side terminal of the X4 wire in the indoor turnout combination through the front contact point of the third group of nodes of the relay DJJ.

8. The detection system of claim 7, wherein, The first state acquisition module and the second state acquisition module are resistance acquisition modules, used for acquiring the resistance of the X5 wire, the first spare core wire, the X4 wire and the second spare core wire.

9. A method for detecting the state of a switch circuit and a reserve cable, implemented by using the system for detecting the state of a switch circuit and a reserve cable according to claim 7, characterized in that, Comprise: When the turnout is positioned, the first driving module drives the relay FJJ to excite, so that the first state acquisition module respectively acquires the first resistance of the X5 wire and the first spare core wire; When the turnout is reversed, the second driving module drives the relay DJJ to excite, so that the second state acquisition module respectively acquires the second resistance of the X4 wire and the second spare core wire; The first resistance and the second resistance are compared with the resistance preset value to judge the state of the X4 wire, the X5 wire, the first spare core wire and the second spare core wire.

10. The detection method of claim 9, wherein, When the first resistance or the second resistance is less than the resistance preset value, it is judged that the state of the X5 wire and the first spare core wire is normal, or the state of the X4 wire and the second spare core wire is normal; when the first resistance or the second resistance is greater than the resistance preset value, it is judged that the state of the X5 wire and the first spare core wire is fault, or the state of the X4 wire and the second spare core wire is fault.

11. The detection method of claim 10, wherein, The resistance preset value ranges from 0 to 5 .

12. The detection method of claim 9, wherein, When the relay FJJ is excited, the relay FBJ is disconnected to cut off the connection between the relay FBJ and the X5 wire; when the relay DJJ is excited, the relay DBJ is disconnected to cut off the connection between the relay DBJ and the X4 wire.

13. The method of claim 9, wherein the detecting is performed by a method selected from the group consisting of mass spectrometry, nuclear magnetic resonance, and chromatography. When the turnout is operated from positioning to reversing, the detection device cuts off the driving of the relay DJJ and the relay FJJ within a preset time when the reverse operation acquisition module acquires that the relay FCJ is excited.

14. The method of claim 9, wherein the detecting is performed by a method selected from the group consisting of mass spectrometry, nuclear magnetic resonance, and chromatography. When the turnout is operated from reversing to positioning, the detection device cuts off the driving of the relay DJJ and the relay FJJ within a preset time when the positioning operation acquisition module acquires that the relay DCJ is excited.

15. The detection method according to claim 13 or 14, characterized in that, The preset time is less than or equal to 10 ms.

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