CN218387541U - Interface switching device for communication test module of dynamic detection vehicle - Google Patents
Interface switching device for communication test module of dynamic detection vehicle Download PDFInfo
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Abstract
The utility model discloses a dynamic detection car communication test module interface auto-change over device, the device includes: a switch; a switching control circuit module; the serial port switching circuit module is used for selecting one path of serial port output to output a communication service quality test signal to the communication detection system controller when receiving a communication detection system test signal, or selecting two paths of serial port output to output a communication service quality test signal to the automatic detection subsystem controller when receiving an automatic detection subsystem test signal; and the Ethernet switching circuit module is used for selecting one path of Ethernet to output the wireless field intensity coverage test signal to the communication detection system controller when receiving the communication detection system test signal, or selecting two paths of Ethernet to output the wireless field intensity coverage test signal to the automatic detection subsystem controller when receiving the automatic detection subsystem test signal. The utility model discloses can realize the multiplexing of dynamic inspection car test module interface, promote test module's utilization ratio.
Description
Technical Field
The utility model relates to a railway dynamic detection technical field especially relates to a dynamic detection car communication test module interface auto-change over device.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
At present, a dynamic detection vehicle communication detection system realizes dynamic detection of GSM-R network wireless field intensity coverage and service quality, a plurality of detection personnel are required to be equipped for vehicle-mounted detection in the process of executing a detection task, operation contents comprise starting of a detection system, configuration of detection items, switching of detection lines, loading of a line database and the like, and the operation mode has the problems of high investment cost of manpower and material resources, invalid detection data caused by misoperation of the detection personnel and the like. In view of the problem, an automatic detection subsystem is configured on the basis of a communication detection system to realize automatic detection. When the communication detection is realized, the communication detection system and the automatic detection subsystem of the dynamic detection vehicle respectively use a set of wireless field intensity coverage and service quality test module, and the structural design is unreasonable.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a dynamic inspection car communication test module interface auto-change over device for realize the multiplexing of dynamic inspection car communication test module interface, the device includes:
a switch;
the first input end of the switching control circuit module is connected with the switch and used for outputting a communication detection system test control signal to the serial port switching circuit module and/or the Ethernet switching circuit module when the switch is disconnected; when the switch is closed, the test control signal of the automatic detection subsystem is output to the serial port switching circuit module and/or the Ethernet switching circuit module;
a serial port switching circuit module, a first input end of which is connected with a first output end of the switching control circuit module, a second input end of which is connected with an external communication service quality testing module through a serial port input interface, a first output end of which is connected with an external communication detection system controller through a first path of serial port output port of a first multiplexing interface physical output port, and a second output end of which is connected with an external automatic detection subsystem controller through a second path of serial port output port of a second multiplexing interface physical output port, wherein the serial port switching circuit module is used for selecting the first path of serial port output port to output a testing signal of the external communication service quality testing module to the external communication detection system controller when receiving a communication detection system testing control signal, or selecting the second path of serial port output port to output a testing signal of the external communication service quality testing module to the external automatic detection subsystem controller when receiving an automatic detection subsystem testing control signal;
the first input end of the Ethernet switching circuit module is connected with the first output end of the switching control circuit module, the second input end of the Ethernet switching circuit module is connected with the external wireless field intensity coverage testing module through an Ethernet input interface, the first output end of the Ethernet switching circuit module is connected with the external communication detection system controller through a first Ethernet output port of a first multiplexing interface physical output port, the second output end of the Ethernet switching circuit module is connected with the automatic detection subsystem controller through a second Ethernet output port of a second multiplexing interface physical output port, and the Ethernet switching circuit module is used for selecting the first Ethernet output port to output a testing signal of the external wireless field intensity coverage testing module to the external communication detection system controller when receiving a testing control signal of the communication detection system or selecting the second Ethernet output port to output the testing signal of the external wireless field intensity coverage testing module to the external automatic detection subsystem controller when receiving the testing control signal of the automatic detection subsystem.
The embodiment of the utility model provides an in, dynamic verification car communication test module interface auto-change over device, include: a switch; the first input end of the switching control circuit module is connected with the switch and used for outputting a communication detection system test control signal to the serial port switching circuit module and/or the Ethernet switching circuit module when the switch is disconnected; when the switch is closed, the test control signal of the automatic detection subsystem is output to the serial port switching circuit module and/or the Ethernet switching circuit module; a serial port switching circuit module, a first input end of which is connected with a first output end of the switching control circuit module, a second input end of which is connected with an external communication service quality testing module through a serial port input interface, a first output end of which is connected with an external communication detection system controller through a first path of serial port output port of a first multiplexing interface physical output port, and a second output end of which is connected with an external automatic detection subsystem controller through a second path of serial port output port of a second multiplexing interface physical output port, wherein the serial port switching circuit module is used for selecting the first path of serial port output port to output a testing signal of the external communication service quality testing module to the external communication detection system controller when receiving a communication detection system testing control signal, or selecting the second path of serial port output port to output a testing signal of the external communication service quality testing module to the external automatic detection subsystem controller when receiving an automatic detection subsystem testing control signal; the first input end of the Ethernet switching circuit module is connected with the first output end of the switching control circuit module, the second input end of the Ethernet switching circuit module is connected with the external wireless field intensity coverage testing module through an Ethernet input interface, the first output end of the Ethernet switching circuit module is connected with the external communication detection system controller through a first Ethernet output port of a first multiplexing interface physical output port, the second output end of the Ethernet switching circuit module is connected with the automatic detection subsystem controller through a second Ethernet output port of a second multiplexing interface physical output port, and the Ethernet switching circuit module is used for selecting the first Ethernet output port to output a testing signal of the external wireless field intensity coverage testing module to the external communication detection subsystem controller when receiving a testing control signal of the communication detection system or selecting the second Ethernet output port to output the testing signal of the external wireless field intensity coverage testing module to the external automatic detection subsystem controller when receiving the testing control signal of the automatic detection subsystem, so that the multiplexing of the interface of the dynamic detection vehicle testing module can be realized, and the utilization rate of the testing module is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
fig. 1 is a front layout view of an interface switching device of a communication test module of a dynamic test vehicle according to an embodiment of the present invention;
fig. 2 is a back layout diagram of the interface switching device of the communication test module of the dynamic test vehicle in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of an interface switching device of a communication test module of a dynamic test vehicle according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an interface switching device of a communication test module of a dynamic test vehicle according to an embodiment of the present invention;
description of the drawings: 1 is external AC220V,2 is an AC/DC conversion circuit module, 3 is a change-over switch, 4 is a change-over switch state output circuit module, 5 is an 8-path RS-232 input interface, 6 is a 2-path Ethernet input interface, 7 is a first multiplexing interface physical output port, and 8 is a second multiplexing interface physical output port.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Considering that the number of the communication test modules of the dynamic detection vehicle is large, and the interfaces are complex (the number of the wireless field intensity coverage test modules is 2, the interfaces are gigabit Ethernet, the number of the service quality test modules is 3, the interfaces are serial ports, and each module has 2 serial ports), the interface switching device of the communication test module of the dynamic detection vehicle is provided to realize the switching multiplexing of the interfaces of the test modules, and finally realize the purpose that the existing communication test system and the automatic detection subsystem of the dynamic detection vehicle share a GSM-R special antenna, a feeder line, a wireless field intensity coverage and a service quality test module by controlling the physical output port of the interfaces through a switch. The following describes the interface switching device of the communication test module of the dynamic test vehicle in detail.
Fig. 1 is a front layout view of an interface switching device of a communication test module of a dynamic test vehicle according to an embodiment of the present invention;
fig. 2 is a back layout diagram of the interface switching device of the communication test module of the dynamic test vehicle in the embodiment of the present invention; fig. 3 is the embodiment of the utility model provides an in dynamic inspection car communication test module interface auto-change over device's schematic structure, as shown in fig. 3, this auto-change over device includes:
a switch;
the first input end of the switching control circuit module is connected with the switch and used for outputting a test control signal of the communication detection system to the serial port switching circuit module and/or the Ethernet switching circuit module when the switch is disconnected; when the switch is closed, the test control signal of the automatic detection subsystem is output to the serial port switching circuit module and/or the Ethernet switching circuit module;
a serial port switching circuit module, a first input end connected to a first output end of the switching control circuit module, a second input end connected to an external communication quality test module through a serial port input interface (such as serial port input in fig. 3), a first output end connected to an external communication test system controller through a first serial port output port (such as serial port I in fig. 3) of a first multiplexing interface physical output port (the first multiplexing interface physical output port includes serial port I and serial port I in fig. 3), a second output end connected to an external automatic test subsystem controller through a second serial port output port (such as serial port II in fig. 3) of a second multiplexing interface physical output port (the second multiplexing interface physical output port includes serial port II and serial port II in fig. 3), for selecting the first serial port output port (such as serial port I in fig. 3) to output a test signal of the external communication quality test module to the external communication test system controller when receiving the test control signal of the communication test system, or selecting the second serial port output port (such as serial port II in fig. 3) to output the external communication quality test module when receiving the test control signal of the automatic test system, and outputting the test signal of the external communication quality test system controller to the external communication test system controller;
an ethernet switching circuit module, a first input end of which is connected to a first output end of the switching control circuit module, a second input end of which is connected to the external wireless field intensity coverage test module through an ethernet input interface (e.g. ethernet input in fig. 3), a first output end of which is connected to the external communication detection system controller through a first path of ethernet output port (e.g. ethernet output in fig. 3) of the first multiplexing interface physical output port, and a second output end of which is connected to the automatic detection subsystem controller through a second path of ethernet output port (e.g. ethernet output in fig. 3) of the second multiplexing interface physical output port, for selecting the first path of ethernet output port to output the test signal of the external wireless field intensity coverage test module to the external communication detection system controller when receiving the communication detection system test control signal, or selecting the second path of ethernet output port to output the test signal of the external wireless field intensity coverage test module to the external automatic detection subsystem controller when receiving the automatic detection subsystem test control signal.
As shown in fig. 3, the embodiment of the utility model provides a dynamic inspection car communication test module interface auto-change over device, the during operation: inputting a switching signal through a switch, wherein the switching signal can be a signal that the switch is opened or a signal that the switch is closed; when the switch is switched off (namely when a switch off signal is received), the switching control circuit module outputs a communication detection system test control signal to the serial port switching circuit module and/or the Ethernet switching circuit module so as to complete related tests of the communication detection system, namely a communication service quality test and/or a wireless field intensity coverage test; when the switch is closed (namely when a signal for closing the switch is received), the test control signal of the automatic detection subsystem is output to the serial port switching circuit module and/or the Ethernet switching circuit module so as to complete the related test of the automatic detection subsystem, namely a communication service quality test and/or a wireless field intensity coverage test; the serial port switching circuit module selects the first path of serial port output port (such as the I path of serial port output in fig. 3) to output the test signal of the external communication service quality test module to the external communication detection system controller when receiving the test control signal of the communication detection system, or selects the second path of serial port output port (such as the II path of serial port output in fig. 3) to output the test signal of the external communication service quality test module to the external automatic detection subsystem controller when receiving the test control signal of the automatic detection subsystem; the ethernet switching circuit module selects the first path of ethernet output port (e.g., I path of ethernet output in fig. 3) to output the test signal of the external wireless field intensity coverage test module to the external communication detection system controller when receiving the communication detection system test control signal, or selects the second path of ethernet output port (e.g., II path of ethernet output in fig. 3) to output the test signal of the external wireless field intensity coverage test module to the external automatic detection subsystem controller when receiving the automatic detection subsystem test control signal, thereby realizing multiplexing of the dynamic detection vehicle test module interface and improving the utilization rate of the test module.
When the specific implementation, the embodiment of the utility model provides an in switching control circuit module receive panel change over switch input signal, output control signal to serial ports switching circuit module and ethernet switching circuit module.
When the specific implementation, the embodiment of the utility model provides an in serial ports switching circuit module realize the switching of serial ports output physics port, support 8 way full function serial ports, support hot switch.
The utility model discloses well full function serial ports is the RS-232 interface of standard, has contained 9 signals, is TXD, RXD, DCD, DTR, GND, DSR, RTS, CTS, RI respectively, can compatible various types of serial devices.
When the specific implementation, the embodiment of the utility model provides an ethernet switches circuit module realizes the switching of ethernet output physics port, supports two tunnel gigabit ethernet, has following characteristics: the method has the advantages of extremely high switching speed (9 ns), extremely low transmission time delay (250 ps), extremely low power consumption (20 mA) and hot switching support.
In one embodiment, the interface switching device for communication test module of dynamic test vehicle further includes: the first input end of the change-over switch state output circuit module is connected with the second output end of the change-over control circuit module and is used for identifying the state of the change-over switch and outputting the state of the change-over switch to a subsequent processing system; and the subsequent processing system is used for obtaining the output state information of the first multiplexing interface physical output port or the second multiplexing interface physical output port according to the state of the change-over switch.
In one embodiment, the switch state output circuit module adopts two TTL level signals, and the two TTL level signals are invalid when both output levels are high or low.
In specific implementation, the change-over switch state output circuit module can identify the state of the change-over switch and output the state of the change-over switch, so that a subsequent processing system can read the state of the change-over switch and obtain the output state information of the multiplexing port, the subsequent processing system refers to various processing systems, and the processing system can know the port output state of the interface change-over device after obtaining the output state, namely, the output from 1 channel (a first multiplexing interface physical output port) or the output from 2 channels (a second multiplexing interface physical output port). Two paths of TTL level signals are adopted, and two paths of signals are invalid when output is high or low, so that misjudgment caused by external interference is prevented.
In one embodiment, the interface switching device for a communication test module of a dynamic test vehicle further includes: and the first input end of the state indicating circuit module is connected with the third output end of the serial port switching circuit module, the second input end of the state indicating circuit module is connected with the third output end of the Ethernet switching circuit module, and the output end of the state indicating circuit module is connected with the serial port state indicator lamp and the Ethernet state indicator lamp and is used for indicating the data transmission states of the serial port input interface and the Ethernet input interface.
In one embodiment, the serial port status indicator lamp is located on a front panel of the switching device, and the ethernet status indicator lamp is located on a rear panel of the switching device.
During specific implementation, the state indicating circuit module is used for indicating the working state of the power supply, the serial port and the Ethernet data transmission state, the power supply working state indicating lamp and the serial port state indicating lamp are positioned on the front panel, and the Ethernet state indicating lamp is positioned on the rear panel.
In one embodiment, the interface switching device for communication test module of dynamic test vehicle further includes: and an input end of the system power supply module is connected with an external AC220V (1 in fig. 4), and an output end of the system power supply module is connected with a second input end of the switching control circuit module, a third input end of the serial port switching circuit module and a third input end of the Ethernet switching circuit module, and is used for supplying power to the switching control circuit module, the serial port switching circuit module and the Ethernet switching circuit module.
When the system is implemented specifically, the system power supply module receives an externally input AC220V power supply, converts the AC220V into DC12V and DC3.3V through AC/DC conversion, and supplies power to other modules. As shown in fig. 3, the output terminal of the system power supply module may be further connected to the second input terminal of the switch state output circuit module and the third input terminal of the state indication circuit module.
In one embodiment, as shown in fig. 3 and 4, the serial port input interface is an 8-way RS-232 input interface 5.
In one embodiment, as shown in fig. 3 and 4, the ethernet input interface is a 2-way ethernet input interface 6.
In one embodiment, the first multiplexing interface physical output port is a 10-way fully functional serial port.
In one embodiment, the second multiplexing interface physical output port is a 2-way gigabit ethernet interface.
When the specific implementation, the embodiment of the utility model provides a realized multiplexing of 10 way full function serial ports and 2 way gigabit ethernet interfaces for the existing communication detection system of dynamic inspection car and automated inspection subsystem sharing test module have promoted test module's utilization ratio. The embodiment of the utility model provides an in the automated inspection subsystem can the automatic execution "open detecting system, the configuration detects the project, switches the operation such as detection circuitry, loading circuit database", existing communication detecting system can carry out "open detecting system, the configuration detects the project, switches the operation such as detection circuitry, loading circuit database".
It can be known from the above embodiments that the embodiment of the present invention can also achieve the purpose that the communication detection system and the automatic detection subsystem share the GSM-R dedicated antenna and the feeder test module, and the specific implementation can refer to the implementation of fig. 3 and fig. 4.
In order to facilitate understanding of the utility model, the following working steps of the interface switching device of the communication test module of the dynamic test vehicle are described with reference to fig. 4 as follows:
(1) As shown in fig. 4, 2 is an AC/DC conversion circuit module, 3 is a switch, 4 is a switch state output circuit module, a serial port input interface 5 and an ethernet input interface 6 are respectively connected to a communication service quality test module and a wireless field intensity coverage test module, and a first multiplexing interface physical output port 7 and a second multiplexing interface physical output port 8 are respectively connected to an existing communication detection system controller and an automatic detection subsystem controller.
(2) The system is powered up through the external AC220V 1.
(3) The output port is switched by the changeover switch 3, and an input signal is output from the first multiplexing interface physical output port 7 when the changeover switch 3 is open, and an input signal is output from the second multiplexing interface physical output port 8 when the changeover switch 3 is closed.
The embodiment of the utility model provides a dynamic inspection car communication test module interface auto-change over device's beneficial technological effect is:
the embodiment of the utility model provides an interface auto-change over device has realized that dynamic detection car GSM-R special antenna, feeder, wireless field intensity cover and service quality test module are multiplexing, and the testing personnel can export the state of change over switch simultaneously and supply back level processing unit (system) to gather and discern physical port output state through front panel change over switch input switching command (signal), finally realizes test module's multiplexing, improves test module's utilization ratio.
The embodiment of the utility model provides an interface switching device can switch the output port of 10 way serial ports, 2 way ethernet interfaces simultaneously, has characteristics such as high switching speed, low transmission delay, low power consumption.
The embodiment of the utility model provides an interface auto-change over device can realize the switching of gigabit ethernet, satisfies gigabit ethernet data transmission's performance requirement.
The embodiment of the utility model provides an interface auto-change over device can realize the switching of full function serial ports, satisfies serial ports data transmission's performance requirement.
The embodiment of the utility model provides a configuration automated inspection subsystem realizes automated inspection time measuring on existing communication detecting system basis, changes test module's port output path through interface auto-change over device, finally realizes test module's multiplexing. One path is used for the existing communication detection system, and the other path is used for the automatic detection subsystem.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a dynamic detection car communication test module interface auto-change over device which characterized in that includes:
a switch;
the first input end of the switching control circuit module is connected with the switch and used for outputting a test control signal of the communication detection system to the serial port switching circuit module and/or the Ethernet switching circuit module when the switch is disconnected; when the switch is closed, the test control signal of the automatic detection subsystem is output to the serial port switching circuit module and/or the Ethernet switching circuit module;
a serial port switching circuit module, a first input end of which is connected with a first output end of the switching control circuit module, a second input end of which is connected with an external communication service quality testing module through a serial port input interface, a first output end of which is connected with an external communication detection system controller through a first path of serial port output port of a first multiplexing interface physical output port, and a second output end of which is connected with an external automatic detection subsystem controller through a second path of serial port output port of a second multiplexing interface physical output port, wherein the serial port switching circuit module is used for selecting the first path of serial port output port to output a testing signal of the external communication service quality testing module to the external communication detection system controller when receiving a communication detection system testing control signal, or selecting the second path of serial port output port to output a testing signal of the external communication service quality testing module to the external automatic detection subsystem controller when receiving an automatic detection subsystem testing control signal;
the first input end of the Ethernet switching circuit module is connected with the first output end of the switching control circuit module, the second input end of the Ethernet switching circuit module is connected with the external wireless field intensity coverage testing module through an Ethernet input interface, the first output end of the Ethernet switching circuit module is connected with the external communication detection system controller through the first Ethernet output port of the first multiplexing interface physical output port, the second output end of the Ethernet switching circuit module is connected with the automatic detection subsystem controller through the second Ethernet output port of the second multiplexing interface physical output port, and the Ethernet switching circuit module is used for selecting the first Ethernet output port to output a testing signal of the external wireless field intensity coverage testing module to the external communication detection system controller when receiving a testing control signal of the communication detection system or selecting the second Ethernet output port to output the testing signal of the external wireless field intensity coverage testing module to the external automatic detection subsystem controller when receiving the testing control signal of the automatic detection subsystem.
2. The interface switching device for a communication test module of a dynamic test vehicle according to claim 1, further comprising: the first input end of the switch state output circuit module is connected with the second output end of the switch control circuit module and used for identifying the state of the switch and outputting the state of the switch to a subsequent processing system; and the subsequent processing system is used for obtaining the output state information of the first multiplexing interface physical output port or the second multiplexing interface physical output port according to the state of the change-over switch.
3. The interface switching device of communication test module for dynamic test vehicle according to claim 2, wherein said switch state output circuit module employs two TTL level signals, and both signal outputs are inactive when both are at high or low level.
4. The dynamic test vehicle communication test module interface switching device of claim 1, further comprising: and the first input end of the state indicating circuit module is connected with the third output end of the serial port switching circuit module, the second input end of the state indicating circuit module is connected with the third output end of the Ethernet switching circuit module, and the output end of the state indicating circuit module is connected with the serial port state indicating lamp and the Ethernet state indicating lamp and used for indicating the data transmission state of the serial port input interface and the Ethernet input interface.
5. The interface switching device for the communication test module of the dynamic testing vehicle as claimed in claim 4, wherein the serial status indicator lamp is located on a front panel of the switching device, and the Ethernet status indicator lamp is located on a rear panel of the switching device.
6. The dynamic test vehicle communication test module interface switching device of claim 1, further comprising: and the input end of the system power supply module is connected with an external AC220V (1), and the output end of the system power supply module is connected with the second input end of the switching control circuit module, the third input end of the serial port switching circuit module and the third input end of the Ethernet switching circuit module and is used for supplying power to the switching control circuit module, the serial port switching circuit module and the Ethernet switching circuit module.
7. The interface switching device of the communication test module of the dynamic test vehicle as claimed in claim 1, wherein the serial port input interface is an 8-way RS-232 input interface (5).
8. The interface switching device for the communication test module of the dynamic inspection vehicle according to claim 1, wherein the ethernet input interface is a 2-way ethernet input interface (6).
9. The interface switching device of the communication test module of the dynamic test vehicle as claimed in claim 1, wherein the physical output port of the first multiplexing interface is a 10-way full-function serial port.
10. The interface switching device of the communication testing module of the dynamic testing vehicle as claimed in claim 1, wherein the physical output port of the second multiplexing interface is a 2-channel gigabit ethernet interface.
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