195results about "Visible signals" patented technology

The invention relates to the technical field of traffic information engineering and control, in particular to a railway signal novel LED lamp control system and method, and the system comprises a DC power supply, a control unit, an interlocking machine, a transmission module, a DC voltage regulation and monitoring device, a main filament breakage alarm module and a DC LED lamp. The direct-current power supply, the control unit, the transmission module, the direct-current voltage regulating and monitoring device and the direct-current LED lamp are sequentially connected together, the control unit is connected with the interlocking machine, and the direct-current voltage regulating and monitoring device is connected with the main filament breakage alarm module; by adopting the filter circuit, the redundancy switching circuit and the power supply adjusting circuit, the bypass alternating current electrified railway traction current interference and the lighting interference of a common mode and a differential mode on the direct current LED lamp can be filtered out, wrong lighting is prevented, the redundancy switching circuit judges the current in a loop, the auxiliary LED lamp is switched to be lightened when the main LED lamp is broken, and the safety of the main LED lamp is ensured. The monitoring of the railway signal direct current LED lamp filament is realized.

The invention relates to the technical field of railway traffic safety, and discloses a railway train coming early warning system and method based on a Lora communication technology. Comprising a LoRa data transmission radio transmitter mounted at the head of a train, a LoRa data transmission radio receiver mounted along a railway, an audible and visual alarm and a power supply system, wherein the LoRa data transmission radio transmitter transmits switching value signals according to a set period; the LoRa data radio receiver receives the switching value signal transmitted by the transmitter and judges whether the train enters an early warning area or not according to the strength of the received signal; the audible and visual alarm is controlled by the receiver to be started and sends out sound and light alarm signals. The power supply system is a solar power supply system. By adopting the railway coming train early warning system based on the LoRa communication technology and combining the flexible parameter adjustment of the transmitter and the receiver, the accurate control of the early warning range is realized. Reliable communication can be realized in a range of 800 meters by adjusting key parameters such as transmitting power and a signal threshold value.

The present invention relates to the technical field of train communication control. Disclosed are an indicator module, a working method, and a detection method. The indicator module comprises a supporting plate, light-emitting devices, a first controller, a second controller, a first transformer, and a second transformer. According to the indicator module of the present invention, the two transformers are connected to the two controllers respectively, and the two controllers separately control the light-emitting devices, so that the indicator can be switched to a corresponding working mode according to needs, thereby reducing interference from external information. The present invention provides a working method, in which the first controller and the second controller can work independently, and separately indicate different information by means of the light-emitting devices, thereby facilitating acquisition of information by a train attendant or the like. The present invention provides a detection method, in which the working state of the light-emitting devices are acquired by means of the first controller and the second controller, and if the light-emitting devices do not meet a set working state, the first controller and the second controller send out alarm information.

The utility model discloses a rail traffic signal device for intelligent traffic, which relates to the technical field of rail traffic signal devices and comprises a traffic signal lamp body and a bearing box, a circular plate is rotatably connected onto the bearing box and is in contact with the bottom of the traffic signal lamp body, and four mounting plates are fixedly connected onto the outer surface of the bearing box. A rotating shaft is rotationally connected into the bearing box, a connecting shaft is fixedly connected to the top end of the rotating shaft, and a first circular groove and four first clamping grooves are formed in the connecting shaft. By arranging the direction adjusting assembly, the direction of the traffic signal lamp body can be conveniently adjusted according to requirements, and compared with the mode that a fixing bolt is detached firstly, and then the traffic signal lamp body is manually rotated to the designated direction, the traffic signal lamp body is more convenient to adjust. The direction of the traffic signal lamp body can be adjusted only by fixing the traffic signal lamp body through the fixing bolts, and the process is simpler and more convenient, so that manpower and time can be effectively saved.

To provide a ground traffic signal recognition device which improves the recognition accuracy of signal indication contents of a ground traffic signal and enhances safety for railways.SOLUTION: The ground traffic signal recognition device includes: a train position detection device that detects a position of a train; a ground traffic signal information storage device that stores installation positions of ground traffic signals along a track on which the train travels and information about the ground traffic signals; a photographing device that photographs an image ahead of the train; and a signal indication recognition device that recognizes signal indications of the ground traffic signals and inputs information about a preceding train of the train received from outside. The signal indication recognition device recognizes the signal indications of the ground traffic signals present in an advancing direction of the train by using the position of the train output by the train position detection device, the installation positions and information of the ground traffic signals output by the ground traffic signal information storage device, and information about the preceding train as auxiliary information that assists in the recognition of the images photographed by the photographing device and the signal indications of the ground traffic signals.SELECTED DRAWING: Figure 1

The invention provides an annunciator circuit system comprising a first repeating structure which comprises a first white lamp and a first repeating transformer, and the first white lamp is connected in series with the secondary side of the first repeating transformer; the first main structure comprises a second white lamp and a first main transformer, the second white lamp is connected with the secondary side of the first main transformer and the first white lamp in series, and the secondary side of the first main transformer is connected with the secondary side of the first repeating transformer in series. During normal work, the bulbs with the same current, main indication signals and repeat indication signals in a series loop are lightened at the same time, synchronous display is achieved, the broken wire state can be detected in real time, receiving equipment is not added, the equipment structure is simplified, the equipment complexity is reduced, maintenance work of maintenance personnel is more convenient, faults can be rapidly processed, and the fault processing time is shortened.

The invention discloses a brightness adjusting method and device and electronic equipment, and the method comprises the steps: obtaining the brightness of a signal machine, the environment brightness, the current of the signal machine, and an adjusting signal period, and obtaining the preset brightness corresponding to the environment brightness; determining a brightness difference value based on the annunciator brightness and the ambient brightness, and determining a preset current based on a brightness PID control algorithm and the brightness difference value; determining a current difference value according to the preset current and the signal machine current, and determining a duty ratio based on a current PID control algorithm and the current difference value; and based on the duty ratio and the adjustment signal period, determining an adjustment signal for controlling the annunciator so as to control the annunciator to adjust the brightness according to the ambient brightness. The invention further discloses a brightness adjusting device and electronic equipment which are adaptive to the brightness adjusting method. Through the arrangement, the signal transmission accuracy of the signal machine can be improved.

The invention relates to a signal transmission device (3) of a signal-related safety system (1) for the reliable transmission of signal information from an AC signal to a processing unit (4), comprising: • a first input channel (14a) and a second input channel (14b) for acquiring the AC signal, • a first output channel (10a) and a second output channel (10b), wherein the first output channel (10a) and the second output channel (10b) are galvanically isolated from each other, wherein each input channel (14a, 14b) is connected to each output channel (10a, 10b) via a coupling element (8a, 8b) with galvanic isolation, characterized in that at least two resistors (16a - 16f) connected in series of each input channel (14a, 14b) differ in at least one characteristic value, and that at least two voltage-direction-dependent electronic switching devices (19a - 19f) connected in series of each Input channel (14a,14b) differ in at least one characteristic parameter, wherein the voltage direction-dependent electronic switching devices (19a - 19c) of the first input channel (14a) are electrically connected to the AC signal source (2) with opposite polarity to the voltage direction-dependent electronic switching devices (19d - 19f) of the second input channel (14b).

An electronic flasher for controlling yellow flashing and yellow lighting in railway signals includes a power supply unit and a microcontroller, a flash control signal detection unit, a flash check output unit, a lighting control output unit, and a feedback detection unit. The microcontroller is connected to each working unit via corresponding ports. The lighting control output unit and the feedback detection unit, together with the microcontroller, form a control module that switches an external lighting control circuit on or off. The control module can be either a standard control module (the lighting control output unit includes one lighting control output circuit and the feedback detection unit includes one feedback detection circuit) or a redundant control module (the lighting control output unit includes two identical lighting control output circuits and the feedback detection unit includes two identical feedback detection circuits). This electronic flasher has a simple structure, precise control, long life, and is safe and reliable. It meets the requirements of the fault-oriented safety principle of railway signal control, which prohibits output when the device fails.

The invention discloses a protection method for relieving a railway train in advance, relates to a railway train dispatching protection method, and aims to solve the problem that the running safety of the railway train is reduced due to the fact that the railway train is relieved in advance. The method comprises the following steps: firstly, positioning train tail position information of a railway train; judging whether the railway train can be relieved in advance or not according to the train tail position information of the railway train; if the railway train can be relieved in advance, the railway train begins to relieve in advance, and whether the railway train can invade the insulation joint in the process of relieving in advance is judged; if the insulation joints are not invaded in the process of relieving in advance, the railway train continues to relieve in advance until the railway train finishes relieving in advance; if the railway train cannot be relieved in advance, the railway train keeps the original state; if the insulation joints are invaded in the process of relieving in advance, the railway train stops relieving in advance. The method has the beneficial effect that the safety of the train in the process of relieving running in advance is improved.

A fixed signage (10) and method for use of the same are disclosed. In one embodiment, a housing (22) having a window (24) is sized to house a sign (26) therein. A closure assembly (32), under the power of an actuator (112), is installed in the housing (22) to support a cover material (34). The cover material (34) is moveable by a moveable closure member (138) between a fully retracted position whereat the cover material (34) is contained within the housing (22) such that the window (24) is exposed to a fully extended position whereat the cover material (34) covers at least a portion of the window (24). A command signal (180) may be received via a transceiver (160) to remotely control the actuator (112) and cover material (34). A signal sensor (60) within the housing (22) indicates the location of the cover material (34).

The utility model belongs to the technical field of rail transit, and particularly relates to a movable signal lamp for rail transit, which comprises a signal lamp body, a base abutted against the bottom surface of the signal lamp body, a vertical column welded on the top surface of the base, a remote control module in threaded connection with the top surface of the vertical column through bolts, and a motor electrically connected with the remote control module through a power line. The surface of a motor shaft is in threaded connection with the surface of the transverse end of the gear. According to the utility model, through mutual cooperation among the stand column, the remote control module, the motor, the gear, the toothed plate, the sliding block and the limiting groove, the remote control module starts the motor to drive the gear to rotate according to the actual traffic condition and the visual field height of a driver to which the driver needs to face, so that the toothed plate and the signal lamp body which are meshed with each other are driven to adjust the height; therefore, drivers with different view heights can safely drive on the track under the command of the traffic signal lamp.

According to the shunting protection device, four paths of independent power supplies are designed for the interface module, when the signal lamp is turned on, the interface module obtains the power supply from the lighting unit of the corresponding lamp position, and then selects the message of the corresponding channel for coding output after collecting the lamp position state of the signal machine; during a signal machine lamp position switching interval, a standby power supply composed of a super capacitor is designed in the interface module, and it is guaranteed that a mainboard in the interface module continuously and stably works during lamp position switching; fPGA software in the mainboard is additionally provided with lamp position switching logic, and when lamp positions are allowed to be switched, driving messages are allowed to be continuously output to the message transmission module. The device has the technical advantages that the super capacitor is used for storing energy to serve as a standby power supply, and power is supplied to the shunting protection device during lamp position switching; a new FPGA software processing logic is designed, so that the shunting protection device keeps messages continuous when lamp position switching is allowed; power-on heartbeat signals are added, and the service life of the standby power supply is monitored.

The invention discloses a flash power supply and a railway signal power supply system. The flash power supply comprises an AC input circuit, a voltage comparison circuit, a logic control circuit and an AC output circuit. The alternating-current input circuit is connected with the voltage comparison circuit and used for receiving an alternating-current voltage signal output by an alternating-current power supply AC, converting the alternating-current voltage signal into a direct-current voltage signal and outputting the direct-current voltage signal to the voltage comparison circuit; the voltage comparison circuit is respectively connected with the alternating current input circuit, the logic control circuit and the alternating current output circuit; and the alternating current output circuit is connected with the logic control circuit and is used for periodically outputting alternating current voltage signals to external electric equipment. According to the flash power supply and the railway signal power supply system, the design is scientific, the external input alternating current voltage signal can be periodically output after passing through the voltage comparison circuit, the logic control circuit and the output overcurrent protection circuit, a power supply can be reliably provided for electric equipment, and normal use of the electric equipment is guaranteed.

The application discloses a current collection sensor and railway signal section signal machine, and belongs to the field of devices for measuring current. In order to solve the problems of high single-point failure risk, easy common interference synchronous failure, insufficient high-voltage insulation protection, and mismatch between high-precision design and actual demand of the existing railway signal current collection scheme, the application provides a full-link heterogeneous redundant current collection sensor. The sensor comprises a double induction module, a double heterogeneous collection and conditioning module, a double processing module, and a data fusion output module. The application fundamentally avoids common interference synchronous failure, significantly improves the reliability and high-voltage safety of the system under the premise of meeting moderate accuracy, effectively controls the cost, and guarantees the collection continuity under single-path failure, and is particularly suitable for high-reliability monitoring scenarios of the lighting state of railway signal section passing signal machines.

The utility model relates to the technical field of train signal lamps, and discloses a protective structure and an LED aluminum alloy signal lamp thereof, the protective structure comprises a protective cover assembly, the protective cover assembly comprises a first circular ring, a second circular ring and a plastic transparent plate, and a diamond net is fixedly installed in a cavity of the first circular ring; a hanging plate; a limiting mounting plate; and the fixing piece comprises a first rectangular plate and a second rectangular plate. A protective structure is arranged at the front end of the lamp body, a plastic transparent plate can protect the lamp body and a lamp shell and avoid scratches caused by gravel impact, a diamond net can prevent stones, branches or birds from impacting the lamp body and the lamp shell and avoid damage to the lamp shell, a limiting mounting plate and a driving unit are arranged, an anti-skid pad is close to the lamp body by rotating a folding rotating handle, and the lamp body is protected from being damaged. And the protective cover assembly is limited and fixed by arranging a hanging plate and a fixing piece, and the device is convenient to mount and dismount, high in practicability and suggested to be popularized and used.

The derail warning system may include a solar-powered LED indicator for derail or switch. The derail warning system may also include an orientation sensor that automatically turns on depending on the orientation of the derail (up or down), derail metal flag, or switch indicator flag. The derail warning system may bring more visibility with a 360-degree LED that is solar powered and may detect orientation and turn on based on the position of the derail, switch, or flag. The derail warning system may use a unique acceleration sensor or g-sensor that can detect orientation movement and automatically turn on or off and be fully charged to operate day or night. The derail warning system may also include a data-logging microprocessor to determine a time stamp of position and location.

The invention provides a novel AC annunciator controller and an annunciator control method, and the method comprises the steps: collecting the working current data of an annunciator in real time through a current collection module, and synchronously transmitting the working current data to an MCU1 and an MCU2; opening and closing state information of the safety relay is obtained through the relay node state acquisition module and is synchronously transmitted to the MCU1 and the MCU2; the working current data and the opening and closing state information of the safety relay are verified through the MCU1 and the MCU2 respectively, and when verification results are consistent, the working state of the signal machine is uploaded to interlocking equipment through an interlocking communication interface; according to a control command issued by interlocking equipment, a driving signal is generated and output to the series output control module; the series output control module comprises an execution circuit formed by connecting a first solid-state relay and a second solid-state relay in series; and when the MCU1 and the MCU2 simultaneously output conduction driving signals, the first solid-state relay and the second solid-state relay are synchronously conducted, and the signal machine is electrified to work. The working state of the annunciator can be correctly judged, and the annunciator is accurately and reliably controlled according to the command issued by the interlocking equipment.

The utility model relates to the technical field of indication board structures, in particular to a parking signal board which comprises a base unit, a signal transmission unit and a signal transmission unit. The rotating unit is rotationally connected to the base unit, a stop mark is arranged on one face of the rotating unit, the rotating unit is provided with a first position and a second position, and when the rotating unit is located at the first position, the plane where the rotating unit is located is parallel to the plane where the base unit is located; when the rotating unit is located at the second position, the included angle between the plane where the rotating unit is located and the plane where the base unit is located is larger than 0. And the fixing unit is arranged on the bottom surface of the base unit, and the fixing unit is used for clamping a track. By means of the parking signal board, the defects that in the prior art, when railway business section blocking construction is conducted, a temporary parking signal board needs to be arranged in a railway business line safety limit, but an existing parking signal board needs to be fixed to a fastener bolt on the outer side of a rail, and the installation and disassembly process is tedious are overcome.

The utility model discloses a rail transit indicating lamp which comprises an indicating lamp body, a storage box and a plurality of cleaning mechanisms. A plurality of indicating lamps are installed on the indicating lamp body. The storage box is installed on the lower side of the indicator lamp body, a liquid storage cavity is formed in the storage box, cleaning liquid and a submersible pump are arranged in the liquid storage cavity, a conveying pipe is connected to the submersible pump, and one end of the conveying pipe is arranged in the indicator lamp body; the multiple cleaning mechanisms are all installed on the indicator lamp body and correspond to the indicator lamps, the cleaning mechanisms communicate with the conveying pipe, an installation cavity is further formed in the storage box, an air pump is arranged in the installation cavity, the output end of the air pump is connected with a branch pipe, the branch pipe communicates with the conveying pipe, and when the air pump operates, the air pump pumps outside air. The cleaning mechanism is arranged, so that the track indicator lamp can be cleaned, the influence of dust on the track indicator lamp is effectively reduced, a driver of a railway vehicle can observe the track indicator lamp conveniently, and the occurrence probability of safety accidents is reduced.

The invention discloses an efficient and low-cost automatic switching device, and relates to the technical field of electromechanical control. The device comprises a track turnout structure and a switch rod body mounted on the track turnout structure, an air cylinder is fixedly mounted on one side of the track turnout structure through a mounting frame, and connecting rod structures are arranged at the ends of the switch rod body and the air cylinder and on the mounting frame. And the air cylinder stretches out and draws back to control the mounting frame through the connecting rod structure to realize switching of tracks of the track turnout structure. According to the invention, the low-cost air cylinder is used as core power, and the existing underground air pipe resources are utilized, so that the switching automation is realized, and the transformation, operation and maintenance cost is extremely low; through remote control operation, a driver can remotely switch the turnout without leaving a cab, so that the transportation efficiency is greatly improved, and the personal potential safety hazard of manual switching is eliminated; by adopting the combination of the metal sensor and the signal indicating lamp, accurate detection and remote visual indication of the turnout position are realized, and double guarantee is provided for safe driving.

The utility model discloses a digital indicator for an auxiliary signal station track of a railway pull-in route, and relates to the field of auxiliary signals of the railway pull-in route. The auxiliary signal station track digital indicator for railway station entering and route entering comprises a station track digital indicator unit. According to the auxiliary signal station track digital indicator for railway station entering and route entering, turnout position sensors are installed at switch rails of a main track and a side track, whether the track changing action is in place or not is monitored in real time, signal transmission is conducted, and a programmable logic controller is installed in a station track digital indicator body. Input signals from a photoelectric sensor in the signal machine unit and a turnout position sensor on the track unit are received, and synchronous judgment logic is executed. The turnout position sensor compares the time sequence and the state of the two signals through a preset program, and if the allowable time difference is exceeded or the states are inconsistent, a fault is triggered.

The utility model discloses a pneumatic type driver control turnout device of a mining locomotive, which relates to the technical field of mining equipment and comprises a protection box and an illuminating lamp, a pushing component is mounted in the protection box, a control box is connected and mounted on one side of the protection box, and a base component is mounted at the bottom of the protection box. A prompt screen is vertically installed on one side of the base assembly, the illuminating lamps are vertically installed on one side of the protection box in a bilateral symmetry mode, and good structural illumination can be provided for the whole device through the structural arrangement of the illuminating lamps, so that an operator can be assisted in maintaining the device, and the working efficiency is improved. Meanwhile, a certain degree of illumination effect can be conveniently provided for a mine tunnel, so that equipment maintenance can be convenient and fast, the protection box provides good structural protection for the pushing assembly, and the prompt screen provides an indication effect for a mine locomotive which travels back and forth, so that the safety and smooth scheduling of mine car traveling are ensured, and the service life of the mine car is prolonged. And the practicability of the device is guaranteed.

The invention relates to the technical field of mining safety guarantee, in particular to an underground mine middle section main transportation rail transit signal system which comprises a PLC. The traffic lights are arranged at a transverse drift opening, a curve blind area and a cross position of the main transportation track and an operation section associated with the ore outlet or the unloading pit; a sound-light alarm device; the proximity switch is arranged on the main transportation track and is used for outputting a trigger signal when the electric locomotive passes through; and the trigger plate is mounted on the electric locomotive. Signal prompting and interlocking control are carried out on key positions such as a transverse drift opening, a curve blind area and a cross node, so that the electric locomotive can orderly pass through the position with high possibility of conflict according to the signal indication, the driving risks such as lateral collision and opposite collision are reduced, and the transportation safety is improved; after the device is put into use in the middle section of 3120 m underground, the driving risk can be effectively avoided when multiple electric locomotives work cooperatively, and the occurrence rate of transportation safety accidents is reduced to zero.

The present invention discloses a device for tapping a signal indication which can be optically displayed on a light signal and generating a data signal for the transmission of the signal indication as a balise protocol by a track-side balise, the device comprising: a) inductively acting scanners for detecting a current flow for each lamp circuit of the light signal; b) means for the wireless and / or wired transfer of a detected current flow signal associated with the corresponding lamp circuit to a control module for the balise; c) control module means for evaluating the wirelessly transferred current flow signals and determining the displayed signal indication; d) control module means for sending the determined signal indication to the balise; and e) balise means for transmitting the balise protocol associated with the determined signal indication in response to a provision of electrical energy to the balise by means of a telepowering signal emitted by a train front. In this way, the present invention ensures that all signal indications are tapped at a signal point by means of a low-power current measurement and can also be transferred to a control module for a balise, referred to in specialist circles as a lineside electronic unit, by means of a low-power transfer and / or a wired transfer. These features thus enable comprehensive capturing of the signal states, and as a result the safety and efficiency of the railway operation can be further increased and the present device, in the form of an extremely power-saving LEU, can be operated largely autonomously.

The invention discloses a die-casting aluminum alloy material and a strengthening and toughening method and application thereof, and belongs to the technical field of aluminum alloy casting. The strengthening and toughening method of the die-casting aluminum alloy material comprises the following steps that a die-casting aluminum alloy material base body is subjected to heat preservation for the first time at the temperature of 100-180 DEG C, and the heat preservation time ranges from 10 min to 40 min; and the die-casting aluminum alloy material base body subjected to first-time heat preservation is subjected to second-time heat preservation at the temperature of 180-220 DEG C, and the heat preservation time ranges from 120 min to 300 min. According to the strengthening and toughening method for the die-casting aluminum alloy material, through the two-step low-temperature heat treatment process, the yield strength of the die-casting aluminum alloy material is improved by 30%, and the elongation at break is kept unchanged, so that the strength and plasticity of the shell material are improved, and the worse use working condition is met.

The present invention discloses a railway LED signal light system and an LED signal machine. The system comprises: a filament detection module, a flash control module and an LED signal light; the filament detection module is connected to the LED signal light through the flash control module; the flash control module is used to switch different control states under a frequency control instruction; the LED signal light is used to be in a constant light state when the flash control module is in a first control state; and is also used to be in a dim light state when the flash control module is in a second control state; the filament detection module is used to detect the filament state of the LED signal light when the LED signal light is in a constant light state and when the LED signal light is in an adjustable dim light state. This scheme simultaneously realizes the one-on-one flash function of the LED signal light and the normal detection of the filament state of the LED signal light by the filament detection module when the LED signal light is in a one-on-one flash state.

The invention discloses a railway signal device, the railway signal device comprises a base, an adjusting assembly, a signal lamp body and a power supply assembly, the adjusting assembly is arranged on the base, the adjusting assembly is provided with a driving part, a transmission part and a moving part which are connected in sequence, and the driving part is used for driving the transmission part to move so as to drive the moving part to move in the vertical direction; the signal lamp body is connected with the moving part so that the moving part can move and drive the signal lamp body to move, and the power supply assembly is connected with the driving part and the signal lamp body and used for supplying power to the driving part and the signal lamp body. According to the railway signal device, the height of the signal lamp body is adjusted through the adjusting assembly so as to ensure the flexibility and reliability of a signal system, and therefore the safety and efficiency of a coal mine transportation railway are improved.

The invention discloses a supporting device for monitoring and maintaining urban rail transit signals. The supporting device comprises a supporting frame, traffic signal lamps and a cleaning mechanism. The traffic signal lamp is installed on the supporting frame. The cleaning mechanism comprises a first-direction linear driving device, a translation seat, a second-direction linear driving device and a cleaning assembly; the first-direction linear driving device is installed on the supporting frame, an output part of the first-direction linear driving device is connected with the translation base and supports the translation base, and the motion direction of the first-direction linear driving device and the motion direction of the second-direction linear driving device are arranged to form a non-zero included angle; the second-direction linear driving device is installed in the translation seat, and an output part of the second-direction linear driving device is connected with the cleaning assembly so as to drive the cleaning assembly to be close to or away from the traffic signal lamp. According to the supporting device for monitoring and maintaining the urban rail transit signals, the traffic signal lamps can be continuously and reliably cleaned.

The utility model discloses a railway train control device based on track short circuit, which belongs to the technical field of railway communication and comprises a power supply module, an MCU (microprogrammed control unit) module, a relay control module, a track short circuit module, an impedance sensing module and a storage module. The MCU module is externally connected with an RS485 interface of a disaster prevention detection system; the power supply module supplies power to the relay control module; the MCU module is respectively connected with the relay control module and the storage module; the relay control module is connected with the track short circuit module; the track short circuit module is connected with the impedance sensing module; and the impedance sensing module is connected with the MCU module. The problem that it is difficult to automatically control the railway train to stop running in time is solved.