Information transmission device for railway bridge and culvert height limiting protection frame collision monitoring

Abstract

The utility model discloses an information transmission device for railway bridge and culvert height limiting protection frame collision monitoring. The information transmission device comprises an information transmission unit, a shell, a cover plate, a first fastener, a second fastener, an indicator lamp, a four-core waterproof interface power supply line, a waterproof plug, a signal connector, a Lora antenna and a 4G antenna. According to the invention, Lora and 4G dual communication modes are fused, and the system has the advantages of low power consumption, long-distance communication, high speed, large capacity, low delay and the like; the watchdog circuit is arranged, so that the system stability and the automatic restart capability are enhanced; meanwhile, a program self-repairing function is built in, and automatic monitoring, program restarting and remote configuration restarting are supported.

Description

Technical Field

[0001] The utility model relates to the technical field of information transmission, in particular to an information transmission device for collision monitoring of railway bridge and culvert height limit protection frames. Background Technique

[0002] The basic principle of communication technology is to transmit the information flow from one device to another, which is realized based on the transmission protocol and network IO. It is mainly divided into two transmission methods: wired and wireless. Among them, the wireless transmission methods mainly include: Wi-Fi, Bluetooth, ZigBee, LoRa, NB-IoT, satellite communication, microwave transmission, infrared transmission, wireless USB, 4G / 5G mobile communication, etc.

[0003] Existing communication products and devices have disadvantages such as electrostatic breakdown and device damage during equipment production and debugging due to static electricity, device damage due to static electricity, incorrect wiring, or overvoltage during equipment installation, poor self-starting and self-repairing capabilities when the device hardware or program is abnormal, inability to form a local Lora network, poor structural reliability, and complex device installation, making it difficult to meet the actual application requirements of the collision alarm at the iron overpass and culvert height limit protection frames. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the application, to avoid obscuring the purpose of this part, the abstract, and the title, but such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above existing problems, the present utility model is proposed.

[0006] Therefore, the utility model provides an information transmission device for collision monitoring of railway bridge and culvert height limit protection frames, which can effectively solve the problems of complex structure, inability to perform local self-networking between communication products, and lack of self-checking and repair functions in the prior art.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: including an information transmission unit, the information transmission unit including a power supply, a first circuit, a second circuit, and a third circuit; the third circuit is respectively connected to two 12V output modules and a fourth circuit, and the fourth circuit is connected to the core board; the third circuit controls the core board through GPIO; the core board controls the Lora module through TTL and power supply; the core board controls the 4G module through USB and power supply; the core board controls the interface, buzzer, and 12V output module respectively through GPIO; the core board controls the connector through Ethernet; the core board controls the communication traffic module through SPI drive, and the communication traffic module is used to provide 4G communication traffic for the core board; the debugging serial port is connected to the fifth circuit, and the fifth circuit is connected to the core board, and the debugging serial port is used to download firmware and debug the device to the core board; the camera is powered by the 12V output module, and the core board communicates with the camera through the connector.

[0008] As a preferred solution of the information transmission device for collision monitoring of railway bridge culvert height limit guard frame described in the utility model, it also includes a shell and a cover plate, the information transmission unit is connected to the inside of the shell by a first fastener, the cover plate is fixed to the shell by a second fastener, and the connector is fixed in the hole in the middle of the shell.

[0009] As a preferred solution of the information transmission device for collision monitoring of railway bridge culvert height limit guard frame described in the utility model, it also includes an indicator light, which is fixed on the shell and connected to the interface through a connecting line to display whether the on and off status of the 4G module and the camera are normal.

[0010] As a preferred solution of the information transmission device for collision monitoring of railway bridge culvert height limit guard frame described in the utility model, it also includes a 4-core waterproof interface power supply line, the two ends of the 4-core waterproof interface power supply line are connected to the positive and negative poles of the power supply corresponding to the information transmission unit, and the other end is connected to the positive pole of the solar panel.

[0011] As a preferred solution of the information transmission device for collision monitoring of railway bridge and culvert height limit guard frame described in the utility model, the Lora module is used to receive the alarm information of the collision alarm module.

[0012] As a preferred solution of the information transmission device for collision monitoring of the height limit guard frame of a railway bridge culvert described in the utility model, it also includes a waterproof plug, which is screwed into the opening at the lower left corner of the shell; the signal connector is internally connected to the antenna interface of the information transmission unit and externally connected to the Lora antenna or the 4G antenna for receiving and sending signals.

[0013] As a preferred solution of the information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to the present utility model, wherein: the first circuit includes a transient suppressor, the transient suppressor is connected to the positive and negative poles of the power supply, and the lower part is connected to GND.

[0014] As a preferred solution of the information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to the present utility model, wherein: the second circuit is composed of a MOS transistor Q1, a resistor R203, and a resistor R205; the MOS transistor Q1 is connected to the positive pole of the transient suppressor, the resistor R203 is connected to the negative pole of the transient suppressor, and the resistors R203 and R205 are connected in series to form a voltage divider to supply power to the gate of the MOS transistor Q1 to control the MOS transistor Q1 to conduct.

[0015] As a preferred solution of the information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to the present utility model, wherein: the third circuit includes a watchdog circuit and a power on / off control circuit; the watchdog circuit includes a U25 TPL5010 chip and a resistor R270; the power on / off control circuit includes a triode Q7, a MOS transistor Q8, resistors R293, R294, R297, R298, and R299.

[0016] As a preferred solution of the information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to the present utility model, wherein: the fourth pin of the U25 TPL5010 chip is connected to the core board.

[0017] The beneficial effects of the present utility model: This application integrates Lora and 4G dual communication methods, and has advantages such as low power consumption, long-distance communication, high speed, large capacity, and low latency; by equipping a watchdog circuit, the system stability and automatic restart ability are enhanced; at the same time, a program self-repair function is built in, which supports automatic monitoring and restart of the program and remote configuration restart. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1 It is a schematic structural diagram of the information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to the first embodiment of the present utility model;

[0020] Figure 2 It is a structural block diagram of the information transmission unit according to the first embodiment of the present utility model;

[0021] Figure 3 Schematic diagram of the circuit structure of the first circuit according to the first embodiment of the present invention;

[0022] Figure 4 Schematic diagram of the circuit structure of the second circuit according to the first embodiment of the present invention;

[0023] Figure 5 Schematic diagram of the circuit structure of the third circuit according to the first embodiment of the present invention;

[0024] Figure 6 Schematic diagram of the circuit structure of the fifth circuit according to the first embodiment of the present invention. Detailed implementation manners

[0025] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0028] The present invention will be described in detail in conjunction with the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the protection scope of the present invention herein. In addition, in actual production, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0029] In order to make the objectives, technical solutions, and advantages of this experimental new type clearer, the following will further describe in detail the implementation manners of this experimental new type with reference to the accompanying drawings.

[0030] Refer to Figure 1, An information transmission device for collision monitoring of height limit protection frames of railway bridges and culverts includes an information transmission unit 100, a housing 200, a cover plate 300, a first fastener 400, a second fastener 500, an indicator light 600, a 4-core waterproof interface power supply line 700, a waterproof plug 800, a signal connector 900, a Lora antenna 1000, and a 4G antenna 1100; the information transmission unit 100 is connected to the inside of the housing 200 through the first fastener 400, and the first fastener 400 is a fixing screw; the cover plate 300 is fixed on the housing 200 through the second fastener 500, and the second fastener 500 is a fastening screw. The cover plate 300 is fixed on the housing 200 with 12 fastening screws, making the two closely fit to achieve the effect of waterproofing and dustproofing.

[0031] For the 4-core waterproof interface power supply line 700, both ends of the 4-core waterproof interface power supply line 700 are connected to the positive and negative poles of the corresponding power supply 101 of the information transmission unit 100 to achieve the function of pilot power supply, and the other end is connected to the positive pole of the solar panel to achieve the function of monitoring the voltage of the solar panel; the remaining 1 wire is not connected.

[0032] The waterproof plug 800 is screwed into the opening at the lower left corner of the housing 200 to play the role of plugging the hole for waterproofing and dustproofing; the inside of the signal connector 900 is connected to the antenna interface of the information transmission unit 100, and the outside is connected to the Lora antenna 1000 or the 4G antenna 1100 for receiving and sending signals.

[0033] Refer to Figure 2 , The information transmission unit 100 includes a power supply 101, a first circuit 102, a second circuit 103, and a third circuit 104.

[0034] Refer to Figure 3 , The first circuit 102 is a surge and static electricity protection circuit, including a transient suppressor. The transient suppressor is connected to the positive and negative poles of the power supply 101 at the top and GND at the bottom to complete the functions of anti-static and anti-surge. It should be noted that the transient suppressor can quickly respond and limit the peak value of the transient voltage in the circuit, reducing it to a safe range to prevent overvoltage from damaging sensitive electronic components and effectively coping with the transient high-energy impact of external signals, such as surge voltage, lightning interference, static electricity, noise of switching power supplies, etc.

[0035] Refer to Figure 4 , The second circuit 103 is an anti-reverse connection circuit, composed of a MOS transistor Q1, a resistor R203, and a resistor R205 to achieve the anti-reverse connection function; the MOS transistor Q1 is connected to the positive pole of the transient suppressor, the resistor R203 is connected to the negative pole of the transient suppressor, and the resistor R203 and the resistor R205 are connected in series to form a resistor voltage divider to supply power to the gate of the MOS transistor Q1 to control the conduction of the MOS transistor Q1. When the incoming line is connected reversely, the gate of the MOS transistor cannot obtain the correct driving voltage through the resistor voltage divider and cannot conduct.

[0036] The BAT_in of the second circuit 103 is connected to the BAT_in of the third circuit 104. TP5 is a test point on the circuit board test fixture, which is only used to test whether there are any abnormalities in the hardware connection of the circuit board during the production test and has no effect during the operation of the device.

[0037] Refer to Figure 5 , the third circuit 104 is a watchdog anti-flyaway power-off self-start protection circuit. The third circuit 104 includes a watchdog circuit 104a and a power on / off control circuit 104b; the watchdog circuit 104a includes a U25 TPL5010 chip and a resistor R270. The 4th pin of the U25 TPL5010 chip is connected to the core board 107, and a watchdog signal is input from the 4th pin, and a high level is output from the 6th pin to control the power conduction.

[0038] The power on / off control circuit 104b includes a triode Q7, a MOS tube Q8, resistors R293, R294, R297, R298, and R299. Under normal circumstances, when the watchdog is in the continuous watchdog feeding condition, the RST signal output is high. When the input signal RST is high, the triode Q7 conducts, thereby controlling the MOS tube Q8 to conduct, and the power supply is normally powered. When the program flies, the watchdog signal becomes abnormal, and when the watchdog time is exceeded, the RST signal output is low. When the input signal RST is low, the triode Q7 disconnects, thereby controlling the MOS tube Q8 to disconnect, and the power supply is cut off, thereby controlling the MCU to restart.

[0039] Preferably, the watchdog process of the third circuit 104 will monitor the running signals of various processes in the system, including network, service, operation and maintenance processes, etc. If the monitored process cannot be started and executed for a certain period of time, it will trigger the power-off function inside the external watchdog chip. This power-off function will cut off the power supply of the entire system for 250 ms to restart the device, with stronger stability. When the device is abnormal, the circuit can be restarted and reset through the watchdog circuit 104a.

[0040] On the other hand, a cron timer is enabled inside the device. This timer will monitor whether the executed process is running every minute. If it is monitored that the process is not running, it will automatically start the unexecuted process. If it cannot be started for a long time, it will trigger the watchdog monitoring function to cut off the power and restart.

[0041] The BAT_in of the third circuit 104 is connected to the BAT_in of the second circuit 103; BAT_12V12V—OUT is connected to the access end of the fourth circuit 106 and two 12V output modules 105. The fourth circuit 106 is connected to the core board 107; the fourth circuit 106 is a 5V / 3A buck circuit.

[0042] The third circuit 104 controls the core board 107 through GPIO (General - purpose input / output); the core board 107 is an RK3568 development board, which is designed based on the Rockchip RK3568J / RK3568B2 processor, with four - core ARM Cortex - A55, and the main frequency of each core is up to 1.8GHz / 2.0GHz.

[0043] The core board 107 controls the Lora module 108 through TTL (Transistor - Transistor Logic) and power supply, and the power supply range is 10V - 30V.

[0044] The core board 107 controls the 4G module 109 through USB and power supply, and uploads information to the server and platform through the 4G module 109.

[0045] The core board 107 controls the interface 110, buzzer 111, and 12V output module 105 through GPIO respectively; the interface 110 is connected to the indicator light 600 through a connecting wire, and the indicator light 600 is fixed at the opening in the lower right corner of the housing 200. The indicator light 600 is connected to the interface 110 through a connecting wire, and is used to display whether the on - off status of the 4G module 109 and the camera 116 is normal. If it is normal, the green light flashes; if the 4G module 109 communicates normally but the camera 116 communicates abnormally, the yellow light flashes; if the 4G module 109 is abnormal but the camera 116 is normal, the red light flashes; the buzzer beeps different numbers of times to indicate different states such as device firmware download and device restart.

[0046] The core board 107 controls the connector 112 through Ethernet. The connector 112 is an RJ45 waterproof connector; the connector 112 is fixed in the hole in the middle of the housing 200. One end of the crystal head of the connector 112 is connected to the network port on the information transmission unit 100, and the other end is connected to the camera 116. The connector 112 plays a role in signal transfer and waterproofing, enabling the device to communicate normally with the camera 116.

[0047] The core board 107 drives and controls the communication traffic module 113 through SPI. The communication traffic module 113 is used to provide 4G communication traffic for the core board 107, and the communication traffic module 113 is a TF traffic card.

[0048] The debugging serial port 114 is connected to the fifth circuit 115. The fifth circuit 115 is a serial port anti - static protection circuit, and the fifth circuit 115 is connected to the core board 107. The debugging serial port 114 is used for firmware download and device debugging of the core board 107.

[0049] Refer to Figure 6, UART2_RX_M0_DEBUG and UART2_TX_M0_DEBUG of the fifth circuit are connected to the core board 107 at the upper end and the 4th and 5th pins of the debugging serial port J9 at the lower end. The transient suppressors D5 and D6 of the serial port electrostatic protection circuit implement the electrostatic protection function; TP10 and TP11 are the test points of the circuit board test fixture, which are only used to test whether there are any abnormalities in the hardware connection of the circuit board during the production test and have no effect during the operation of the device.

[0050] The camera 116 is powered by the 12V output module 105, and the core board 107 communicates with the camera 116 through the connector 112.

[0051] The Lora module 108 is used to receive the alarm information of the collision alarm module to implement collision alarm monitoring.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are only illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, changes in color, orientation, etc.). For example, an element shown as being integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those that are not relevant to the implementation of the present utility model).

[0054] It should be understood that, during the development of any actual implementation, such as in any engineering or design project, numerous specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, the development efforts will be routine work in design, manufacturing, and production.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An information transmission device for collision monitoring of height limit protection frames of railway bridges and culverts, characterized in that: It includes an information transmission unit (100), and the information transmission unit (100) includes a power supply (101), a first circuit (102), a second circuit (103), and a third circuit (104); The third circuit (104) is respectively connected to two 12V output modules (105) and a fourth circuit (106), and the fourth circuit (106) is connected to the core board (107); The third circuit (104) controls the core board (107) through GPIO; The core board (107) controls the Lora module (108) through TTL and power supply; The core board (107) controls the 4G module (109) through USB and power supply; The core board (107) controls the interface (110), the buzzer (111), and the 12V output module (105) through GPIO respectively; The core board (107) controls the connector (112) through Ethernet; The core board (107) drives and controls the communication traffic module (113) through SPI, and the communication traffic module (113) is used to provide 4G communication traffic for the core board (107); The debug serial port (114) is connected to a fifth circuit (115), and the fifth circuit (115) is connected to the core board (107). The debug serial port (114) is used to download firmware and debug the device for the core board (107); The camera (116) is powered by the 12V output module (105), and the core board (107) communicates with the camera (116) through the connector (112).

2. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 1, characterized in that: It further includes a housing (200) and a cover plate (300). The information transmission unit (100) is connected to the inside of the housing (200) through a first fastener (400), and the cover plate (300) is fixed on the housing (200) through a second fastener (500). The connector (112) is fixed in the hole in the middle of the housing (200).

3. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 2, characterized in that: It further includes an indicator light (600). The indicator light (600) is fixed on the housing (200), and the indicator light (600) is connected to the interface (110) through a connecting wire, and is used to display whether the on-off status of the 4G module (109) and the camera (116) is normal.

4. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 3, wherein: It further includes a 4-core waterproof interface power supply line (700). Both ends of the 4-core waterproof interface power supply line (700) are connected to the positive and negative poles of the corresponding power supply (101) of the information transmission unit (100), and the other end is connected to the positive pole of the solar panel.

5. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 4, characterized in that: The Lora module (108) is used to receive the alarm information of the collision alarm module.

6. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 5, characterized in that: It further includes a waterproof plug (800), The waterproof plug (800) is screwed into the opening at the lower left corner of the housing (200); The signal connector (900) is internally connected to the antenna interface of the information transmission unit (100) and externally connected to the Lora antenna (1000) or the 4G antenna (1100), and is used to receive and send signals.

7. The information transmission device for collision monitoring of height-limiting protection frames of railway bridges and culverts according to claim 6, characterized in that: The first circuit (102) includes a transient suppressor. The transient suppressor is connected to the positive and negative poles of the power supply (101) at the upper part and connected to GND at the lower part.

8. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 7, characterized in that: The second circuit (103) consists of MOS transistor Q1, resistor R203, and resistor R205; The MOS transistor Q1 is connected to the positive pole of the transient suppressor, the resistor R203 is connected to the negative pole of the transient suppressor, and the resistors R203 and R205 are connected in series to form a resistor voltage divider to supply power to the gate of the MOS transistor Q1, controlling the conduction of the MOS transistor Q1.

9. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 8, wherein: The third circuit (104) includes a watchdog circuit (104a) and a power on / off control circuit (104b); The watchdog circuit (104a) includes U25 TPL5010 chip and resistor R270; The power on / off control circuit (104b) includes transistor Q7, MOS transistor Q8, resistors R293, R294, R297, R298, and R299.

10. The information transmission device for collision monitoring of the height limit protection frame of railway bridges and culverts according to claim 9, characterized in that: The fourth pin of the U25 TPL5010 chip is connected to the core board (107).

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