Signal machine circuit detection system, signal machine system and full-electronic interlock

Abstract

The invention relates to the field of signal equipment systems, in particular to an annunciator circuit detection system, an annunciator system and a full-electronic interlock. The signal machine circuit detection system not only can detect whether a circuit or a current sensor of the circuit has a fault or not, effectively avoids system shutdown or performance reduction caused by equipment faults, but also can discriminate whether line mixing occurs in the circuit or not, accurately identifies the line mixing type, provides a powerful guarantee for preventing potential safety hazards, and improves the safety of the signal machine. According to the signal machine control circuit, the signal machine control circuit can stably operate in various complex environments, no harm is caused to personnel or equipment, the usability and safety of the signal machine control circuit in full-electronic interlocking are improved, and powerful technical support is provided for stable operation and safe production of related industries.

Description

Technical Field

[0001] The present invention relates to the field of signal equipment systems, and in particular, to a signal machine circuit detection system, a signal machine system, and a full electronic interlocking system. Background Art

[0002] At present, full electronic interlockings are widely used in many fields of railway transportation, such as urban rail transit, urban rail transit, local railways, and tramways. With its excellent safety and reliability, as well as outstanding space optimization capabilities, this system has won wide acceptance and acclaim in the market. In a full electronic interlocking system, in addition to performing conventional control functions, the signal machine control system also needs to monitor the current of the signal machine in real time to promptly detect problems such as filament breakage of color light signal lamps or damage to LED signal machine lamp beads.

[0003] However, due to the large number of signal machines, the involved cables are extremely complex. Cable breakage or mixed-wire connection may wrongly light up the signal machine, posing a threat to train operation safety. At the same time, long-term use may cause the signal machine circuit to break, resulting in lamp failure. If a train enters a restricted area due to this, a serious collision accident may occur. Therefore, comprehensive detection of signal machines is a crucial link in the use of full electronic interlockings. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art. To this end, the first object of the present invention is to provide a signal machine circuit detection system, comprising: a first current sensor and a first relay provided in the outgoing line circuit of the first signal machine; the first current sensor is used to detect the first analog current of the first outgoing line circuit of the first signal machine; the first relay is used to control the on / off of the first outgoing line circuit of the first signal machine; a second current sensor and a second relay provided in the first return line circuit of the first signal machine; the second current sensor is used to detect the second analog current of the first return line circuit of the first signal machine; the second relay is used to control the on / off of the first return line circuit of the second signal machine; a first voltage sensor provided at both ends of the first signal machine; the first voltage sensor is used to detect the first analog voltage of the first signal machine; a third current sensor and a third relay provided in the second outgoing line circuit of the second signal machine; the third current sensor is used to detect the third analog current of the second outgoing line circuit of the second signal machine; the third relay is used to control the on / off of the second outgoing line circuit of the second signal machine; a fourth current sensor and a fourth relay provided in the return line circuit of the second signal machine; the fourth current sensor is used to detect the fourth analog current of the second return line circuit of the second signal machine; the fourth relay is used to control the on / off of the second return line circuit of the second signal machine; a second voltage sensor provided at both ends of the second signal machine; the second voltage sensor is used to detect the second analog voltage of the second signal machine; an analog-to-digital converter and a signal processor; the input end of the analog-to-digital converter is connected to the output ends of the first current sensor, the second current sensor, the third current sensor, the fourth current sensor, the first voltage sensor and the second voltage sensor, and the output end of the analog-to-digital converter is connected to the input end of the signal processor. Through the signal machine circuit detection system of the present invention, not only can it detect whether there is a fault in the voltage or current sensor of the circuit, effectively avoiding system downtime or performance degradation caused by circuit component failures, but also it can distinguish whether there is a mixed line in the circuit and accurately identify the type of mixed line, providing a strong guarantee for preventing potential safety hazards, ensuring that the signal machine control circuit can operate stably in various complex environments, not causing harm to personnel or equipment, improving the availability and safety of the signal machine control circuit in the all-electronic interlocking, and providing strong technical support for the stable operation and safe production of related industries.

[0005] The second object of the present invention is to provide a signal machine system.

[0006] The third object of the present invention is to provide an all-electronic interlocking.

[0007] To achieve the above object, an embodiment of the first aspect of the present invention provides a signal machine circuit detection system, including a first current sensor and a first relay provided in the outgoing line circuit of the first signal machine; the first current sensor is used to detect the first analog current of the first outgoing line circuit of the first signal machine; the first relay is used to control the on / off of the first outgoing line circuit of the first signal machine; a second current sensor and a second relay provided in the first return line circuit of the first signal machine; the second current sensor is used to detect the second analog current of the first return line circuit of the first signal machine; the second relay is used to control the on / off of the first return line circuit of the first signal machine; a first voltage sensor provided at both ends of the first signal machine; the first voltage sensor is used to detect the first analog voltage of the first signal machine; a third current sensor and a third relay provided in the second outgoing line circuit of the second signal machine; the third current sensor is used to detect the third analog current of the second outgoing line circuit of the second signal machine; the third relay is used to control the on / off of the second outgoing line circuit of the second signal machine; a fourth current sensor and a fourth relay provided in the return line circuit of the second signal machine; the fourth current sensor is used to detect the fourth analog current of the second return line circuit of the second signal machine; the fourth relay is used to control the on / off of the second return line circuit of the second signal machine; a second voltage sensor provided at both ends of the second signal machine; the second voltage sensor is used to detect the second analog voltage of the second signal machine; an analog-to-digital converter and a signal processor; the input end of the analog-to-digital converter is connected to the output ends of the first current sensor, the second current sensor, the third current sensor, the fourth current sensor, the first voltage sensor and the second voltage sensor, and the output end of the analog-to-digital converter is connected to the input end of the signal processor.

[0008] In addition, the signal machine circuit detection system according to the above embodiment of the present invention may further have the following additional technical features:

[0009] According to the signal machine circuit detection system provided by the embodiment of the present invention, the analog-to-digital converter is used to obtain the first analog current, the second analog current, the third analog current, the fourth analog current, the first analog voltage and the second analog voltage, and convert the first analog current, the second analog current, the third analog current, the fourth analog current, the first analog voltage and the second analog voltage into a first digital current, a second digital current, a third digital current, a fourth digital current, a first digital voltage and a second digital voltage respectively, and send the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage and the second digital voltage to the signal processor.

[0010] According to the signal machine circuit detection system provided by the embodiment of the present invention, the signal processor is used to detect the short-circuit situation of the first signal machine and the second signal machine according to the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage and the second digital voltage.

[0011] According to the signal lamp circuit detection system provided by an embodiment of the present invention, the mixed wiring conditions of a first signal lamp and a second signal lamp are detected according to a first digital current, a second digital current, a third digital current, a fourth digital current, a first digital voltage, and a second digital voltage, including: controlling a first relay to close and a second relay to open, and determining whether the first digital voltage is zero; in response to the first digital voltage not being zero, determining that a first return circuit is mixed with an external circuit.

[0012] The signal lamp circuit detection system provided by an embodiment of the present invention further includes: in response to the first digital voltage being zero, controlling the first relay to open and the second relay to close, and determining again whether the first digital voltage is zero; in response to the first digital voltage not being zero, determining that a first outgoing circuit is mixed with an external circuit.

[0013] The signal lamp circuit detection system provided by an embodiment of the present invention further includes: controlling the first relay to close, the second relay to close, the third relay to open, and the fourth relay to close; in response to the first signal lamp and the second signal lamp being lit and the first digital current being equal to twice the fourth digital current, determining that the first outgoing circuit is mixed with the second outgoing circuit.

[0014] The signal lamp circuit detection system provided by an embodiment of the present invention further includes: in response to the first outgoing circuit being mixed with the second outgoing circuit, controlling the third relay to open and the fourth relay to open; in response to the third digital current and the fourth digital current being zero and the first digital voltage being equal to the second digital voltage, determining that the first outgoing circuit is mixed with the second outgoing circuit and the first return circuit is mixed with the second return circuit.

[0015] The signal lamp circuit detection system provided by an embodiment of the present invention further includes: controlling the third relay to open and the fourth relay to open, and in response to the first digital voltage and the second digital voltage being reverse voltages to each other and the third digital current and the fourth digital current being zero, determining that the first outgoing circuit is mixed with the second return circuit and the first return circuit is mixed with the second outgoing circuit.

[0016] Through the signal lamp circuit detection system of the present invention, not only can it accurately detect whether there are faults in the circuit or current sensor, so as to timely eliminate potential safety hazards, but also it can effectively identify whether there is mixed wiring in the circuit, further ensuring the accurate transmission of signals, and can significantly improve the usability and safety of the signal lamp control circuit in the all-electronic interlocking, providing a strong technical guarantee for the smooth operation of railway traffic and the safe travel of passengers.

[0017] To achieve the above object, an embodiment of the second aspect of the present invention provides a signal machine system, including a signal machine and the signal machine circuit detection system described above; the signal machine circuit detection system is used to monitor the circuit short - circuit of the signal machine. By adding current sensors and voltage sensors and designing a specific detection process, signal machine control, open - circuit monitoring, and short - circuit monitoring are realized.

[0018] To achieve the above object, an embodiment of the third aspect of the present invention provides a full - electronic interlocking device, including the signal machine system as described above. By adding current sensors and voltage sensors and designing a specific detection process, signal machine control, open - circuit monitoring, and short - circuit monitoring are realized.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the full - electronic interlocking control circuit in the prior art.

[0022] Figure 2 It is the short - circuit situation of the signal machine in the full - electronic interlocking.

[0023] Figure 3 It is a schematic diagram of the single - signal - machine circuit detection system circuit provided by the embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of the multi - signal - machine circuit detection system circuit provided by the embodiment of the present invention.

[0025] Figure 5 It is a normal electric - light flow chart of the signal machine provided by the embodiment of the present invention.

[0026] Figure 6 It is an open - circuit detection flow chart of the signal machine provided by the embodiment of the present invention.

[0027] Figure 7 It is an external short - circuit detection flow chart of the signal machine provided by the embodiment of the present invention.

[0028] Figure 8 It is a schematic diagram of the single - wire - removal and short - circuit circuit between signal machines provided by the embodiment of the present invention.

[0029] Figure 9 Schematic diagram of a single-loop cross-wiring circuit between signal machines provided by an embodiment of the present invention.

[0030] Figure 10 Schematic diagram of a multi-line cross-wiring circuit between signal machines provided by an embodiment of the present invention.

[0031] Figure 11 Schematic diagram of a multi-line cross-wiring circuit between signal machines provided by an embodiment of the present invention.

[0032] Reference numerals: K1 - first relay, K2 - second relay, K3 - third relay, K4 - fourth relay. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0034] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second", and similar terms used in the present invention do not indicate any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0035] As described in the background art section, existing all - electronic interlocks can achieve the control of signal lights and the acquisition of current data, playing a crucial role in the field of rail transit. However, they lack detection means for the mixing and disconnection of signal lines, and consider that the situation of incorrectly lighting other - colored signal lights or not lighting the signal light due to power failure after line mixing are both safe situations. However, in actual operation, both line - mixing or power - off situations may pose risks. In related technologies, in order to achieve line - mixing detection, a method of injecting additional test incentives is used, and a single - pole double - throw relay and a detection method using a resistor voltage - dividing network as a sensor are used to separate the functions of the control circuit and the detection circuit to achieve the detection of line - mixing. However, this method has a complex structure, many components, and the control circuit and the detection circuit are two independent circuits. In addition, in related technologies, it is also connected through a line - mixing switch, and whether the test line is mixed is achieved by the closing and opening of the line - mixing switch. Although this method can achieve loop detection, it is not within the scope of all - electronic, and moreover, a method of switching multiple switches is used, with a complex structure.

[0036] Hereinafter, the technical solution of the present invention will be further described in detail through specific embodiments.

[0037] Reference Figure 1 , is a schematic diagram of the all - electronic interlock control circuit in the prior art.

[0038] The all - electronic interlock control circuit in the prior art includes: a lighting power supply, a current sensor, a relay, and a signal light. Among them, the lighting power supply provides a stable and reliable power supply for the signal light to ensure that the signal light can be normally lit and extinguished; the current sensor is used to monitor the current magnitude on the outgoing line circuit or the return line circuit in the circuit in real time, and at the same time detect the working condition and power consumption of the circuit; the relay is an important component for realizing automatic circuit control and is used to control the on - off of the circuit; the signal light is used to display driving instructions or warning information to train drivers or pedestrians, and the display state of the signal light (such as red light, yellow light, green light, etc.) represents different traffic instructions, such as stop, attention, or passage, etc.

[0039] Specifically, usually, two relays are equipped to control one signal light, which are respectively placed on the outgoing line and the return line. Two processors respectively and simultaneously control the relays to conduct the lighting power supply to control the signal light to light up. While the signal light is lit, the two processors simultaneously obtain the data of the current sensor to ensure that the signal light is working normally without filament breakage or LED lamp bead damage. And in the prior art, generally only one current sensor is configured on the outgoing line or the return line.

[0040] Reference Figure 2 , is the line - mixing situation of the signal light in the all - electronic interlock.

[0041] Specifically, taking the case of the mixing of signal machine 1 and signal machine 2 as an example, the mixing situation can be single - line mixing, that is, the outgoing line circuit of a certain signal machine is mixed with the outgoing line circuit or the return line circuit of another signal machine ( Figure 2 as shown in ①), or the return line circuit of a certain signal machine is mixed with the outgoing line circuit or the return line circuit of another signal machine ( Figure 2 as shown in ②); the mixing situation can also be double - line mixing, that is, the outgoing line circuit and the return line circuit of a certain signal machine are simultaneously mixed with the outgoing line circuit and the return line circuit of another signal machine, including: the outgoing line circuit is mixed with the outgoing line circuit while the return line circuit is mixed with the return line circuit ( Figure 2 as shown in ③), or the outgoing line circuit is mixed with the return line circuit while the return line circuit is mixed with the outgoing line circuit ( Figure 2 as shown in ④). These situations will seriously affect the normal operation of the signal machine and may even lead to incorrect traffic indications. Therefore, it is crucial to monitor, detect, and handle the mixing situation in a timely manner.

[0042] During the implementation of the present invention, the applicant found that by adding current sensors and voltage sensors and designing a dedicated detection process for them, the control function of the signal machine can be significantly enhanced. This design not only enables the signal machine to operate accurately according to the predetermined instructions, but more importantly, it can also monitor abnormal situations such as wire breaks and wire mixing in real - time. Once such problems are detected, the system can immediately respond, thus ensuring the stable operation of the all - electronic interlocking signal machine. This method not only improves the intelligence level of the signal machine but also provides a more secure and reliable usage plan for the all - electronic interlocking signal machine, greatly reducing the safety risks caused by line problems and enhancing the stability and security of the entire system.

[0043] Hereinafter, the technical solution of the present invention will be further described in detail through specific embodiments.

[0044] Refer to Figure 3 , which is a schematic circuit diagram of the single - signal - machine circuit detection system provided by the embodiment of the present invention.

[0045] Among them, the first current sensor is used to collect the first analog current on the first outgoing line circuit of the first signal machine, and the second current sensor is used to collect the second analog current on the first return line circuit of the first signal machine; the first voltage sensor is located at both ends of the first signal machine and is used to collect the first analog voltage at both ends of the first signal machine; the input end of the analog-to-digital converter is connected to the first current sensor, the second current sensor and the first voltage sensor, and is used to convert the collected analog signals into digital signals that can be processed by the processor; the signal processor is connected to the output end of the analog-to-digital converter, and is used to control the first relay K1 and the second relay K2, while collecting current and voltage data, and realizing all logical control functions. In the single signal machine circuit detection system, there are two independent logical modules in the signal processor to process data. If the output results of these two modules are the same, the result is used as the overall result of the logical processing unit and output. At this time, the two processors control the first relay K1 or the second relay K2 to close or open at the same time. If there are differences in the output results of the two logical processing modules, the system will judge that the main system has a fault and will not operate the first relay K1 or the second relay K2.

[0046] Reference Figure 4 , which is the circuit schematic diagram of the multi-signal machine circuit detection system provided by the embodiment of the present invention.

[0047] The signal machine circuit detection system of the embodiment of the present invention can be composed of two signal machines. The first current sensor is used to collect the first analog current on the first outgoing line circuit of the first signal machine, and the second current sensor is used to collect the second analog current on the first return line circuit of the first signal machine; the first voltage sensor is located at both ends of the first signal machine and is used to collect the first analog voltage at both ends of the first signal machine; the third current sensor is used to collect the third analog current of the second outgoing line circuit of the second signal machine, and the fourth current sensor is used to collect the fourth analog current on the second return line circuit of the second signal machine; the second voltage sensor is located at both ends of the second signal machine and is used to collect the second analog voltage at both ends of the second signal machine; the analog-to-digital converter is used to obtain the first analog current, the second analog current, the third analog current, the fourth analog current, the first analog voltage and the second analog voltage, and convert the first analog current, the second analog current, the third analog current, the fourth analog current, the first analog voltage and the second analog voltage into the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage and the second digital voltage respectively, and send the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage and the second digital voltage to the signal processor; the signal processor is connected to the output end of the analog-to-digital converter, and is used to control the first relay K1, the second relay K2, the third relay K3 and the fourth relay K4, while collecting current and voltage data, and can judge the wiring mixing situation of the signal machine according to the current and voltage conditions and realize all logical control functions.

[0048] Reference Figure 5 , which is the normal electric lamp flow chart provided by the embodiment of the present invention for the signal machine.

[0049] After the signal machine circuit detection system receives the lighting instruction, it controls the first relay K1 and the second relay K2 to close. At this time, the signal processor first judges whether the voltage at both ends of the signal machine is normal through the first digital voltage; if the voltage at both ends of the signal machine is normal, next, the signal processor receives the data of the first current sensor and the second current sensor, compares whether the data is consistent, and if it is consistent and within the normal lighting current range, the signal processor feeds back to the host of the full electronic interlocking and the signal centralized detection system that this lighting can be executed normally and feeds back the detected current data.

[0050] Reference Figure 6 , which is the signal machine disconnection detection flow chart provided by the embodiment of the present invention.

[0051] After the signal machine circuit detection system receives the lighting instruction, it controls the first relay K1 and the second relay K2 to close. At this time, the signal processor first judges whether the voltage at both ends of the signal machine is normal through the first voltage sensor. If it is normal, it means that the first relay K1 and the second relay K2 have been closed and there is no disconnection inside the signal machine circuit detection system.

[0052] As an optional embodiment, when the signal processor receives that the current value of the first current sensor is zero, and at this time the second current sensor has a normal current value, it means that there is no disconnection in the external line and the signal machine can be lit, only the first current sensor has a fault; similarly, when the signal processor receives that the current value of the second current sensor is zero, and at this time the first current sensor has a normal current value and the signal machine can be lit, it means that there is no disconnection in the external line and only the second current sensor has a fault.

[0053] As an optional embodiment, when the signal processor receives that the current values of both the first current sensor and the second current sensor are zero, but the signal machine can be lit, it means that there may be a disconnection in the external line at this time.

[0054] Reference Figure 7 , which is the external line mixing detection flow chart provided by the embodiment of the present invention for the signal machine.

[0055] After the signal machine circuit detection system receives the lighting instruction, it starts to monitor the circuit. When the signal processor detects that the output currents of the first current sensor and the second current sensor are not both zero, the signal machine is in the lighting state at this time, indicating that there is no mixing of wires with the external at this time, and no further detection is performed on it; when the signal processor detects that the output currents of the first current sensor and the second current sensor are both zero, the signal machine is not lit at this time, indicating that there is a mixing of wires. Further, in order to detect whether it is the outgoing circuit or the return circuit that is mixed with the external circuit, first, close the first relay K1 and open the second relay K2. The signal processor reads that the first digital voltage at this time is zero. At this time, close the second relay K2 and open the first relay K1. The signal processor reads that the first digital voltage at this time is still zero again, indicating that the signal machine is not mixed with the external circuit, and the detection ends at this time.

[0056] As an optional embodiment, if the first relay K1 is closed and the second relay K2 is opened, and the signal processor reads that the first digital voltage at this time is not zero, it means that the first return circuit is mixed with the external line. At this time, read the current value collected by the first outgoing circuit current sensor, and find the lighting circuit where the increased value of other current sensors is consistent with this current value, that is, locate the mixed line, and send the positioning result to the full electronic interlocking host and the maintenance machine to wait for the next operation.

[0057] As an optional embodiment, if the first relay K1 is closed and the second relay K2 is opened, and the signal processor reads that the first digital voltage at this time is zero, and then the second relay K2 is closed and the first relay K1 is opened, and it is determined again that the first digital voltage at this time is not zero, it means that the first outgoing circuit is mixed with the external line. At this time, read the current value collected by the first return circuit current sensor, and find the lighting circuit where the increased value of other current sensors is consistent with this current value, that is, locate the mixed line, and send the positioning result to the full electronic interlocking host and the maintenance machine to wait for the next operation.

[0058] Reference Figure 8 , is a schematic diagram of the single outgoing wire mixing circuit between signal machines provided by the embodiment of the present invention.

[0059] As an optional embodiment, control to close the first relay, control to close the second relay, control to open the third relay, and control to close the fourth relay; if the first signal machine and the second signal machine are lit, and the first digital current is equal to twice the fourth digital current, it is determined that the first outgoing circuit and the second outgoing circuit are mixed.

[0060] Specifically, when the first signal lamp is lit, the first relay K1 and the second relay K2 are closed at this time, and the first digital current detected by the first current sensor is equal to the second digital current detected by the second current sensor; if the first outgoing line circuit and the second outgoing line circuit are short-circuited at this time, the third relay K3 is disconnected and the fourth relay K4 is closed, and the second signal lamp is lit. At this time, the second outgoing line circuit of the second signal lamp passes through the first relay K1 and the short-circuited circuit. The fourth digital current detected by the fourth current sensor is equal to the values of the first digital current and the second digital current detected when the fourth relay K4 is not closed. At this time, the first current sensor has the current superimposed by the first signal lamp and the second signal lamp flowing through it, that is, the first digital current is equal to twice the fourth digital current at this time.

[0061] It should be noted that since there is no voltage between the third relay K3 and the fourth relay K4 of the second signal lamp before the fourth relay K4 is closed, under normal circumstances, only the fourth relay K4 is closed and the third relay K3 is disconnected, and there is no voltage across the second voltage sensor; due to the short-circuit situation between the first outgoing line circuit and the second outgoing line circuit, the second digital voltage measured by the second voltage sensor at both ends of the second signal lamp at this time is actually the voltage between the first relay K1 and the fourth relay K4.

[0062] Reference Figure 9 , which is a schematic diagram of a single-loop short-circuit circuit between signal lamps provided by an embodiment of the present invention.

[0063] As an optional embodiment, control the first relay to close, control the second relay to open, control the third relay to close, and control the fourth relay to close; in response to the first signal lamp and the second signal lamp being lit, and the fourth digital current being equal to twice the first digital current, it is determined that the first loop circuit and the second loop circuit are short-circuited.

[0064] Specifically, if the first loop circuit and the second loop circuit are short-circuited at this time, close the first relay K1, open the second relay K2, close the third relay K3, and close the fourth relay K4. Both the first signal lamp and the second signal lamp are lit. At this time, there is current passing through the first relay K1, the first signal lamp, and the short-circuit on the second loop circuit of the second signal lamp, and there is also current passing through the third relay and the second signal lamp superimposed. Therefore, the fourth digital current measured by the fourth current sensor at this time should be twice the first digital current measured by the first current sensor.

[0065] Reference Figure 10 , which is a schematic diagram of a multi-loop short-circuit circuit between signal lamps provided by an embodiment of the present invention.

[0066] As an alternative embodiment, in response to a short circuit between the first wire removal circuit and the second wire removal circuit, control is performed to open the third relay and control is performed to open the fourth relay; in response to the third digital current and the fourth digital current being zero, and the first digital voltage being equal to the second digital voltage, it is determined that a short circuit has occurred between the first wire removal circuit and the second wire removal circuit, and a short circuit has occurred between the first return circuit and the second return circuit.

[0067] Specifically, if there is a short circuit between the first wire removal circuit and the second wire removal circuit, and a short circuit between the first return circuit and the second return circuit at this time, when the first relay K1 and the second relay are closed, and at the same time the third relay K3 and the fourth relay K4 are open, there is still current flowing through the second signal machine. At this time, the second voltage sensor can measure that there is a voltage across the second signal machine. At this time, the second digital voltage measured by the second voltage sensor is actually the voltage between the first relay K1 and the second relay K2, that is, the second voltage sensor and the first voltage sensor measure voltages of the same phase; at this time, since both the third relay K3 and the fourth relay K4 are open, that is, the third digital current measured by the third current sensor and the fourth digital current measured by the fourth current sensor are both zero.

[0068] Reference Figure 11 , is a schematic diagram of a multi-wire short circuit circuit between signal machines provided by an embodiment of the present invention.

[0069] As an alternative embodiment, control is performed to open the third relay and control is performed to open the fourth relay. In response to the first digital voltage and the second digital voltage being reverse voltages, and the third digital current and the fourth digital current being zero, it is determined that a short circuit has occurred between the first wire removal circuit and the second return circuit, and a short circuit has occurred between the first return circuit and the second wire removal circuit.

[0070] Specifically, if there is a short circuit between the first wire removal circuit and the second return circuit, and a short circuit between the first return circuit and the second wire removal circuit at this time, when the first relay K1 and the second relay are closed, and at the same time the third relay K3 and the fourth relay K4 are open, the current flows through the first relay K1 to the first signal machine, and then flows reversely into the second signal machine through the short circuit line of the first wire removal circuit and the second return circuit, and then flows to the second relay K2 from the first return circuit and the second wire removal circuit respectively. At this time, the first digital voltage detected by the first voltage sensor and the second digital voltage detected by the second voltage sensor have opposite values, and the third digital current and the fourth digital current detected by the third current sensor and the fourth current sensor are zero.

[0071] It should be noted that if there is a short circuit between the first wire removal circuit and the second return circuit, and a short circuit between the first return circuit and the second wire removal circuit, the third relay K3 and the fourth relay K4 cannot be closed at this time, otherwise it will cause risks such as circuit short circuit, equipment damage or system instability.

[0072] It should be noted that the signal machine circuit detection system in this application can also perform line detection on more than two signal machines and has corresponding beneficial effects, which will not be elaborated here.

[0073] As can be seen from the above, the signal machine circuit detection system provided by the present invention uses two current sensors in each signal machine circuit to synchronously monitor the current changes on the outgoing line and the return line, and adds a voltage sensor at the outlet of the control system to more comprehensively monitor the circuit state. Through a simple and efficient detection process, this signal machine circuit detection system can not only accurately detect the disconnection situation, but also timely identify the faults of the current sensors; in addition, it can also intelligently identify and process various mixed-line conditions, thereby greatly improving the stability, availability and safety of the all-electronic interlocking signal machine control circuit, providing a strong technical guarantee for the reliable operation of the railway signal system.

[0074] It should be noted that some embodiments of the present invention have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order from that in the above embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous. Based on the same inventive concept, corresponding to the signal machine circuit detection system provided in any of the above embodiments, the present invention also provides a signal machine system, including a signal machine and the above-mentioned signal machine circuit detection system. The signal machine circuit detection system is used to monitor the circuit mixed-line situation of the signal machine and has corresponding beneficial effects, which will not be elaborated here.

[0075] Based on the same inventive concept, corresponding to the signal machine circuit detection system provided in any of the above embodiments, the present invention also provides an all-electronic interlock, including the above-mentioned signal machine system, which provides important status information and display functions for the all-electronic interlock, jointly constituting a modern and efficient railway or urban rail transit signal control system and having corresponding beneficial effects, which will not be elaborated here.

[0076] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the embodiments of the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0077] Although the spirit and principles of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed, and the division of each aspect does not mean that the features in these aspects cannot be combined for benefit. This division is only for the convenience of expression. The present invention aims to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the appended claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A signal machine circuit detection system, characterized in that, Including: A first current sensor and a first relay disposed in the first outgoing line circuit of the first signal lamp; the first current sensor is used to detect a first analog current of the first outgoing line circuit of the first signal lamp; the first relay is used to control the on / off of the first outgoing line circuit of the first signal lamp; A second current sensor and a second relay disposed in the first return line circuit of the first signal lamp; the second current sensor is used to detect a second analog current of the first return line circuit of the first signal lamp; the second relay is used to control the on / off of the first return line circuit of the first signal lamp; A first voltage sensor disposed at both ends of the first signal lamp; the first voltage sensor is used to detect a first analog voltage of the first signal lamp; A third current sensor and a third relay disposed in the second outgoing line circuit of the second signal lamp; the third current sensor is used to detect a third analog current of the second outgoing line circuit of the second signal lamp; the third relay is used to control the on / off of the second outgoing line circuit of the second signal lamp; A fourth current sensor and a fourth relay disposed in the return line circuit of the second signal lamp; the fourth current sensor is used to detect a fourth analog current of the second return line circuit of the second signal lamp; the fourth relay is used to control the on / off of the second return line circuit of the second signal lamp; A second voltage sensor disposed at both ends of the second signal lamp; the second voltage sensor is used to detect a second analog voltage of the second signal lamp; An analog-to-digital converter and a signal processor; The input end of the analog-to-digital converter is connected to the output ends of the first current sensor, the second current sensor, the third current sensor, the fourth current sensor, the first voltage sensor and the second voltage sensor, and the output end of the analog-to-digital converter is connected to the input end of the signal processor.

2. The signal machine circuit detection system according to claim 1, characterized in that, The analog-to-digital converter is used to acquire the first analog current, the second analog current, the third analog current, the fourth analog current, the first analog voltage and the second analog voltage, and respectively convert the first analog current, the second analog current, the third analog current, the fourth analog current, the first analog voltage and the second analog voltage into a first digital current, a second digital current, a third digital current, a fourth digital current, a first digital voltage and a second digital voltage, and send the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage and the second digital voltage to the signal processor.

3. The signal machine circuit detection system according to claim 2, characterized in that, The signal processor is used to detect the mixed line condition of the first signal lamp and the second signal lamp according to the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage and the second digital voltage.

4. The signal machine circuit detection system according to claim 3, wherein, Detecting the short - circuit situation of the first signal machine and the second signal machine according to the first digital current, the second digital current, the third digital current, the fourth digital current, the first digital voltage, and the second digital voltage includes: Controlling the first relay to close, controlling the second relay to open, and determining whether the first digital voltage is zero; In response to the first digital voltage not being zero, determining that the first return - line circuit is short - circuited with an external line.

5. The signal machine circuit detection system according to claim 4, wherein, It further includes: In response to the first digital voltage being zero, controlling the first relay to open, controlling the second relay to close, and determining again whether the first digital voltage is zero; In response to the first digital voltage not being zero, determining that the first outgoing - line circuit is short - circuited with an external line.

6. The signal machine circuit detection system according to claim 3, wherein, It further includes: Controlling the first relay to close, controlling the second relay to close, controlling the third relay to open, and controlling the fourth relay to close; In response to the first signal machine and the second signal machine being lit, and the first digital current being equal to twice the fourth digital current, determining that the first outgoing - line circuit is short - circuited with the second outgoing - line circuit.

7. The signal machine circuit detection system according to claim 6, characterized in that, It further includes: In response to the first outgoing - line circuit being short - circuited with the second outgoing - line circuit, controlling the third relay to open and controlling the fourth relay to open; In response to the third digital current and the fourth digital current being zero, and the first digital voltage being equal to the second digital voltage, determining that the first outgoing - line circuit is short - circuited with the second outgoing - line circuit, and the first return - line circuit is short - circuited with the second return - line circuit.

8. The signal machine circuit detection system according to claim 3, wherein It further includes: Controlling the third relay to open and controlling the fourth relay to open. In response to the first digital voltage and the second digital voltage being reverse voltages of each other, and the third digital current and the fourth digital current being zero, determining that the first outgoing - line circuit is short - circuited with the second return - line circuit, and the first return - line circuit is short - circuited with the second outgoing - line circuit.

9. A signal machine system, characterized in that, It includes a signal machine and the signal - machine circuit detection system according to any one of claims 1 - 8; the signal - machine circuit detection system is used for monitoring the short - circuit of the signal - machine circuit.

10. A full electronic interlock, characterized in that, It includes the signal - machine system according to claim 9.

Images