Railway signboard state monitoring equipment

Abstract

The utility model discloses railway signboard state monitoring equipment, relates to a railway monitoring device, and aims to solve the problems that when an existing signboard is installed or evacuated, field operation personnel cannot know the situation in real time, and potential safety hazards are likely to occur. The monitoring system is arranged on a railway signboard, a Beidou positioning unit is used for acquiring the position of the railway signboard in real time, and the Beidou positioning unit is connected with a main control unit; the posture monitoring unit is used for acquiring the posture of the railway signboard in real time, and the posture monitoring unit is connected with the main control unit; the lithium battery is used for supplying power to the main control unit; the main control unit is used for converting the position signal and the attitude and speed signal into a communication signal; the communication unit is used for sending the communication signal generated by the main control unit to the handheld terminal in a wireless mode; the handheld terminal is used for displaying the position and the posture of the railway signboard. The railway signboard has the beneficial effect that the purpose of acquiring the position and attitude information of the railway signboard in real time by field operation personnel is achieved.

Description

Technical Field

[0001] The utility model relates to a railway monitoring device. Background Art

[0002] When the railway business systems are working on sections, lines within stations or switches, in order to ensure the safety of the work, it is necessary to insert work signs, mobile stop signs, mobile deceleration signs, mobile location signs or T-signs and other signs at the specified locations. The signboards are inserted and removed by construction protection personnel, and there is no mutual control information verification for the installation or removal of the signboards; when the signboards are overturned or removed by mistake, the on-site workers cannot be informed in real time, which poses a safety hazard; after the construction is completed, if the signboards are forgotten on the line, it will cause a hazard to driving safety. Utility Model Content

[0003] The utility model aims to solve the problem that on-site workers cannot obtain real-time information when installing or removing existing signboards, which may easily lead to potential safety hazards, and proposes a railway signboard status monitoring device.

[0004] The utility model discloses a railway sign status monitoring device, which includes a monitoring system and a handheld terminal;

[0005] The monitoring system is arranged on the railway signboard, and the monitoring system comprises a main control unit, a Beidou positioning unit, a posture monitoring unit, a communication unit and a lithium battery;

[0006] The Beidou positioning unit is used to obtain the position of the railway identification plate in real time, and the position signal output end of the Beidou positioning unit is connected to the position signal input end of the main control unit;

[0007] The posture monitoring unit is used to obtain the posture of the railway sign in real time, and the posture and speed signal output end of the posture monitoring unit is connected to the posture and speed signal input end of the main control unit;

[0008] The lithium battery is used to power the main control unit;

[0009] The main control unit is used to convert the position signal, attitude and speed signal into a communication signal;

[0010] The communication unit is used to send the communication signal generated by the main control unit to the handheld terminal in a wireless form;

[0011] The handheld terminal is used to display the position and posture of the railway identification plate.

[0012] Furthermore, the monitoring system also includes a charging unit;

[0013] The charging unit charges the lithium battery in a wireless manner.

[0014] Furthermore, the monitoring system also includes a voltage monitoring unit and an audio output device;

[0015] The voltage monitoring unit is used to measure the voltage and charging state of the lithium battery; wherein the voltage monitoring unit adopts the voltage detection chip LTC2941; the voltage monitoring unit generates an alarm signal when the power of the lithium battery is lower than the minimum power threshold and the power is higher than the maximum power threshold; the alarm signal output end of the voltage monitoring unit is connected to the alarm signal input end of the audio output device;

[0016] The audio output device is used to issue an abnormal power alarm.

[0017] Furthermore, the monitoring device also includes a housing;

[0018] The monitoring system is disposed in the housing;

[0019] The shell is a rectangular parallelepiped structure.

[0020] Furthermore, the main control unit adopts the STM32L151C8T6A chip.

[0021] Furthermore, the Beidou positioning unit adopts a UM960 positioning chip, and the positioning accuracy of the UM960 positioning chip is 30cm.

[0022] Furthermore, the model of the posture monitoring unit is MPU9250.

[0023] The beneficial effects of the utility model are as follows: the position of the railway signboard is acquired in real time by using the Beidou positioning unit, and the position signal is sent to the main control unit, the main control unit converts the position signal into a communication signal and sends it wirelessly to the handheld terminal, and finally the real-time position of the railway signboard is displayed through the handheld terminal; at the same time, the posture monitoring unit is used to acquire the posture and speed of the railway signboard in real time, and the posture and speed signals are sent to the main control unit, the main control unit converts the posture and speed signals into a communication signal and sends it wirelessly to the handheld terminal, and finally the real-time posture of the railway signboard is displayed through the handheld terminal; the purpose of on-site workers knowing the position and posture information of the railway signboard in real time is achieved, reducing the occurrence of safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a principle block diagram of a railway sign status monitoring device described in the first specific implementation mode;

[0025] Figure 2 It is a front view of the housing in the first specific embodiment;

[0026] Figure 3It is a side view of the housing in the first specific implementation mode. DETAILED DESCRIPTION

[0027] Specific implementation method 1. Combination Figures 1 to 3 This embodiment describes a railway sign status monitoring device, which includes a monitoring system and a handheld terminal 1;

[0028] The monitoring system is arranged on the railway signboard, and the monitoring system comprises a main control unit 2, a Beidou positioning unit 3, a posture monitoring unit 4, a communication unit 5 and a lithium battery 6;

[0029] The Beidou positioning unit 3 is used to obtain the position of the railway sign in real time, and the position signal output end of the Beidou positioning unit 3 is connected to the position signal input end of the main control unit 2;

[0030] The posture monitoring unit 4 is used to obtain the posture of the railway sign in real time, and the posture and speed signal output end of the posture monitoring unit 4 is connected to the posture and speed signal input end of the main control unit 2;

[0031] The lithium battery 6 is used to supply power to the main control unit 2;

[0032] The main control unit 2 is used to convert the position signal, attitude and speed signal into a communication signal;

[0033] The communication unit 5 is used to send the communication signal generated by the main control unit 2 to the handheld terminal 1 in a wireless form;

[0034] The handheld terminal 1 is used to display the position and posture of the railway identification plate.

[0035] In this embodiment, the monitoring system and the handheld terminal 1 form a self-organizing network, and the networking time is less than 2s; the inclination monitoring accuracy of the posture monitoring unit 4 is 5°. The lithium battery 6 achieves ultra-low power consumption and ultra-long standby, and can be used continuously for more than 8 hours on a single charge in an environment of -40℃-60℃.

[0036] In a preferred embodiment, the monitoring system further comprises a charging unit 7;

[0037] The charging unit 7 charges the lithium battery 6 in a wireless manner.

[0038] In this embodiment, the charging unit 7 is used to charge the lithium battery 6 in a contactless manner without plugging or unplugging, thereby avoiding the phenomenon of interface inapplicability and poor contact, freeing the charging unit 7 from the limitation of the line, and realizing the complete separation of the charging unit 7 and the power supply; it shows better advantages than wired charging in terms of safety and flexibility; the charging unit 7 adopts electromagnetic induction charging, and the charging efficiency is as high as 75%. The charging unit 7 has the advantages of small size, low wear rate, wide application range, and small required public charging area, and the charging time is 2.5 hours.

[0039] In a preferred embodiment, the monitoring system further comprises a voltage monitoring unit 8 and an audio output device 9;

[0040] The voltage monitoring unit 8 is used to measure the voltage and charging state of the lithium battery 6; wherein the voltage monitoring unit 8 uses a voltage detection chip LTC2941; the voltage monitoring unit 8 generates an alarm signal when the power level of the lithium battery 6 is lower than the minimum power threshold and the power level is higher than the maximum power threshold; the alarm signal output end of the voltage monitoring unit 8 is connected to the alarm signal input end of the audio output device 9;

[0041] The audio output device 9 is used to issue an abnormal power alarm.

[0042] In this embodiment, the voltage detection chip LTC2941 can measure the battery voltage and charging status in real time. Its working range is very suitable for lithium battery 6; the voltage monitoring unit 8 contains a precise coulomb counter responsible for integrating the current flowing through a detection resistor located between the positive terminal of the battery and the load or charger; the measured charge is stored in an internal register; the voltage monitoring unit 8 has an I2C interface for accessing and configuring the device; the voltage detection chip LTC2941 also has a programmable minimum power threshold and maximum power threshold for accumulated charge; if the power of the lithium battery (6) is lower than the minimum power threshold and the power is higher than the maximum power threshold, the voltage detection chip LTC2941 will use the SMBus alarm protocol or set a mark in the internal status register to transmit an alarm signal; when the voltage is lower than the threshold set by the user, an alarm reminder is issued, and the voltage monitoring accuracy is 0.12V.

[0043] In a preferred embodiment, the monitoring device further comprises a housing;

[0044] The monitoring system is disposed in the housing;

[0045] The shell is a rectangular parallelepiped structure.

[0046] In this embodiment, the housing protects the monitoring system and prevents the monitoring system from being damaged by external forces; at the same time, the housing is more convenient to fix.

[0047] In a preferred embodiment, the main control unit 2 uses a STM32L151C8T6A chip.

[0048] In this implementation, the STM32L151C8T6A chip uses a Cortex-M3 core and a CPU clock frequency between 32kHz and 32MHz, extending the concept of ultra-low power consumption without sacrificing performance; in addition to dynamic operation and low-power operation modes, the chip also provides two other ultra-low power modes, which can achieve extremely low power consumption while maintaining the operation of RTC, backup registers and low-voltage detectors. The chip also has an onboard high-speed 12-bit 1MSPS ADC (analog-to-digital converter), USB2.0FS and capacitive touch sensing functions; and provides SDIO and FSMC interfaces for easy expansion of storage capacity.

[0049] At the same time, the STM32L151C8T6A chip uses frequency band control technology and self-combination of B1, B2, and B5 bands to achieve anti-interference processing, which reflects the anti-interference performance of the STM32L151C8T6A chip.

[0050] In a preferred embodiment, the Beidou positioning unit 3 adopts a UM960 positioning chip, and the positioning accuracy of the UM960 positioning chip is 30 cm.

[0051] In this embodiment, the Beidou positioning unit 3 adopts the UM960 positioning chip, which is a SoC chip integrating NebulasIV radio frequency baseband and high-precision algorithm; the UM960 positioning chip adopts independent tracking of each satellite frequency point and 60dB narrowband anti-interference technology, single point positioning (RMS) plane: 1.5m elevation: 2.5m, DGPS (RMS) plane: 0.4m elevation: 0.8m, RTK (RMS) plane: 0.8cm+1ppm; fast response speed , supports all satellite signals of BDS (Beidou Satellite Navigation System) B1I / B2I / B3I / B1C / B2a+GPS (Global Positioning System) L1 / L2 / L5+GLONASS (Global Satellite Navigation System) G1 / G2+Galileo (Galileo Satellite Navigation System) E1 / E5b / E5a+QZSS (Quasi-Zenith Satellite System) L1 / L2 / L5+SBAS frequency bands; DGNSS positioning can be achieved using the BDS-BSAS functional module with a positioning accuracy of 30cm.

[0052] In a preferred embodiment, the model of the posture monitoring unit 4 is MPU9250.

[0053] In this embodiment, the posture monitoring unit 4 uses the MPU9250 module to detect the posture and speed of the railway sign. The module integrates two modules, the acceleration sensor and the posture sensor, and uses its own digital motion processor (DMP: Digital Motion Processor) hardware acceleration engine to integrate the nine-axis sensor data, reducing the load of motion processing operations on the operating system, so that the posture of the stop sign can be solved in real time. The module has stable performance and strong anti-interference ability.

[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A railway sign status monitoring device, characterized in that: The monitoring device comprises a monitoring system and a handheld terminal (1); The monitoring system is arranged on a railway signboard, and comprises a main control unit (2), a Beidou positioning unit (3), a posture monitoring unit (4), a communication unit (5) and a lithium battery (6); The Beidou positioning unit (3) is used to obtain the position of the railway identification plate in real time, and the position signal output end of the Beidou positioning unit (3) is connected to the position signal input end of the main control unit (2); The posture monitoring unit (4) is used to obtain the posture and speed of the railway sign in real time, and the posture and speed signal output end of the posture monitoring unit (4) is connected to the posture and speed signal input end of the main control unit (2); The lithium battery (6) is used to supply power to the main control unit (2); The main control unit (2) is used to convert the position signal, attitude and speed signal into a communication signal; The communication unit (5) is used to send the communication signal generated by the main control unit (2) to the handheld terminal (1) in a wireless form; The handheld terminal (1) is used to display the position and posture of a railway identification plate.

2. A railway sign status monitoring device according to claim 1, characterized in that: The monitoring system further comprises a charging unit (7); The charging unit (7) charges the lithium battery (6) in a wireless manner.

3. A railway sign status monitoring device according to claim 2, characterized in that: The monitoring system further comprises a voltage monitoring unit (8) and an audio output device (9); The voltage monitoring unit (8) is used to measure the voltage and charging state of the lithium battery (6); wherein the voltage monitoring unit (8) uses a voltage detection chip LTC2941; the voltage monitoring unit (8) generates an alarm signal when the power level of the lithium battery (6) is lower than a minimum power level threshold and higher than a maximum power level threshold; the alarm signal output end of the voltage monitoring unit (8) is connected to the alarm signal input end of the audio output device (9); The audio output device (9) is used to issue an abnormal power alarm.

4. The railway sign status monitoring device according to claim 3 is characterized in that: The monitoring device also includes a housing; The monitoring system is disposed in the housing; The shell is a rectangular parallelepiped structure.

5. The railway sign status monitoring device according to claim 1, characterized in that: The main control unit (2) adopts the STM32L151C8T6A chip.

6. The railway sign status monitoring device according to claim 1, characterized in that: The Beidou positioning unit (3) adopts a UM960 positioning chip, and the positioning accuracy of the UM960 positioning chip is 30 cm.

7. The railway sign status monitoring device according to claim 1, characterized in that: The model of the posture monitoring unit (4) is MPU9250.

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