CN205005057U - Communication testing arrangement and system - Google Patents

Abstract

The utility model provides a communication testing arrangement and system, the testing arrangement that should communicate includes: inputoutput interface is connected with at least one equipment of awaiting measuring and treater electricity, generate test data and a the response data who corresponds with test data are connected with the treater electricity to the watch -dog to send test data for the treater, the treater sends test data for at least one equipment of awaiting measuring through inputoutput interface, the treater still is used for receiving respectively device identification that at least one equipment of awaiting measuring sent and rather than the 2nd the response data who corresponds to send every device identification and its the 2nd the response data who corresponds to the watch -dog, the watch -dog for whether with two the response data that every device identification correspond unanimous, if at least one the 2nd the response data of existence and a the response data are inconsistent, then obtain the trouble device identification who corresponds with first response the 2nd inconsistent the response data, and generate an alarm signal who carries device identification out of order if contrasting a the response data.

Description

Communication test device and system

technical field

The utility model relates to the technical field of train communication, in particular to a communication testing device and system.

Background technique

The existing electric locomotive mainly adopts a train communication network (Train Communication Network, TCN for short) system to realize the network control of the electric locomotive. Among them, the TCN system includes: train bus, vehicle bus, main control equipment of the train and equipment inside the vehicle, wherein the train bus connects different vehicles or EMU units, and the vehicle bus connects equipment inside the vehicle (such as doors, power units, etc. ), the equipment inside the vehicle is connected with the main control equipment of the train.

In order to ensure the normal use of each train, the main control equipment and the equipment inside the vehicle must ensure that they can send and receive data correctly to each other. Therefore, before the train is used, it is tested whether the main control device and the equipment inside the vehicle can correctly send and receive data to each other. At present, the test is performed directly on the train. However, in the prior art, the main control device needs to test the equipment inside the vehicle one by one, which will waste a lot of manpower and material resources, and the test cost is relatively high.

Utility model content

The utility model provides a communication test device and system, which saves a lot of manpower and material resources, and reduces the test cost.

The utility model provides a communication testing device, comprising: a processor, a monitor and an input and output interface;

The input and output interface is electrically connected to at least one device under test and the processor;

The monitor, electrically connected to the processor, is used to generate test data and first response data corresponding to the test data, and send the test data to the processor;

The processor is configured to send the test data to the at least one device under test through the input and output interface;

The processor is further configured to respectively receive the device identification and the corresponding second response data sent by at least one device under test, and send each device identification and its corresponding second response data to the monitor;

The monitor is configured to compare whether the first response data is consistent with the second response data corresponding to each device identifier, and if at least one second response data is inconsistent with the first response data, obtain the The first response is inconsistent with the faulty device identifier corresponding to the second response data, and a first alarm signal carrying the faulty device identifier is generated.

In an embodiment of the present utility model, the monitor is further configured to generate a device identifier carrying the A second alarm signal for device identification that does not return the second response data.

In an embodiment of the present utility model, the monitor is further configured to generate a heartbeat detection signal, and send the heartbeat detection signal to the processor;

The processor is further configured to send the heartbeat detection signal to the at least one device under test through the input and output interface;

The monitor is also used to monitor whether the processor receives the device identification returned by the device under test and the corresponding heartbeat response signal within a second preset time, so as to determine whether the at least one device under test is online.

In an embodiment of the present utility model, the input and output interfaces include: a digital input interface, a digital output interface, an analog input interface and an analog output interface;

Wherein, the digital input interface, the digital output interface, the analog input interface and the analog output interface are all connected to the processor.

In an embodiment of the present utility model, the processor includes: a power supply unit and a gateway unit; wherein,

The power supply unit is used to supply power to the gateway unit;

The gateway unit is electrically connected to the monitor, the digital input interface, the digital output interface, the analog input interface and the analog output interface, and is used for the test data and /or the second response data is converted.

The utility model also provides a communication test system, comprising: a communication test device and at least one device to be tested, and the device to be tested is connected to an input and output interface.

In an embodiment of the present invention, the device under test includes: an analog input terminal, an analog output terminal, a digital input terminal, and a digital output terminal;

Wherein, the analog input terminal is connected to the analog output interface, the analog output terminal is connected to the analog input interface, the digital input terminal is connected to the digital output interface, and the digital The quantity output terminal is connected with the digital quantity input interface.

The utility model provides a communication test device and system, comprising: a processor, a monitor and an input/output interface; the monitor generates test data and first response data corresponding to the test data, and sends the test data to The processor; the processor sends the test data to the at least one device under test through the input and output interface; the processor also respectively receives the device identification sent by the at least one device under test and its corresponding The second response data, and send each device identification and its corresponding second response data to the monitor; the monitor compares whether the first response data is consistent with the second response data corresponding to each device identification, if there is At least one second response data is inconsistent with the first response data, acquiring a faulty equipment identification corresponding to the second response data inconsistent with the first response, and generating a first alarm signal carrying the faulty equipment identification, Since the testing device provided by the utility model realizes testing the communication functions of multiple devices under test at the same time, it does not measure one by one on the train, which saves a lot of manpower and material resources, and reduces the testing cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying creative labor.

FIG. 1 is a schematic structural diagram of Embodiment 1 of a communication testing device provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of the input and output interfaces in the communication test device provided by the embodiment of the utility model;

Fig. 3 is a schematic structural diagram of a communication test system provided by an embodiment of the present invention;

Fig. 4 is the schematic structural diagram of the device under test provided by the embodiment of the present invention;

Fig. 5 is a flow chart of the communication test method provided by the embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

FIG. 1 is a schematic structural diagram of Embodiment 1 of a communication testing device provided by an embodiment of the present invention; as shown in FIG.

In this embodiment, the input-output interface 300 is electrically connected to at least one device under test and the processor 200; the monitor 100 is electrically connected to the processor 200 for generating test data and first response data corresponding to the test data , and send the test data to the processor 200; the processor 200 is used to send the test data to at least one device under test through the input and output interface 300; the processor 200 is also used to respectively receive the device identification sent by at least one device under test and the corresponding second response data, and send each device identification and its corresponding second response data to the monitor 100; the monitor 100 is used to compare the first response data with the second response data corresponding to each device identification Whether it is consistent, if there is at least one second response data that is inconsistent with the first response data, then obtain the faulty equipment identification corresponding to the second response data that is inconsistent with the first response, and generate a first alarm signal that carries the faulty equipment identification.

Specifically, the processor 200 may be a programmable logic controller, and the monitor 100 may be a computer or an Ipad. In addition, the monitor 100 is connected to the processor 200 through a connection line meeting the CANOpen protocol. In addition, the first alarm signal indicates that the equipment on the standby side fails. The first alarm signal can be in the form of an indicator light or in the form of a buzzer alarm, which is not specifically limited in the present invention.

The present embodiment provides a communication testing device including a processor, a monitor and an input/output interface; the monitor generates test data and the first response data corresponding to the test data, and sends the test data to the processor; the processor passes the input and output The interface sends the test data to at least one device under test; the processor also receives the device identification sent by at least one device under test and the corresponding second response data, and sends each device identification and its corresponding second response data to the monitor. Response data; the monitor compares whether the first response data is consistent with the second response data corresponding to each device identifier, and if at least one second response data is inconsistent with the first response data, obtains a second response that is inconsistent with the first response The faulty equipment identification corresponding to the data, and generate the first alarm signal carrying the faulty equipment identification. Since the test device provided by the utility model can simultaneously test the communication functions of a plurality of equipment to be tested, it does not measure one by one on the train , save a lot of manpower and material resources, and reduce the cost of testing.

Further, on the basis of the technical solution in Embodiment 1, in the communication testing device provided in Embodiment 2, the monitor is also used to detect that the processor does not receive the information returned by the standby device within the first preset time. When the device identification of the second response data is used, a second alarm signal carrying the device identification that does not return the second response data is generated.

In addition, in the communication testing device provided in Embodiment 2, the monitor is also used to generate a heartbeat detection signal and send the heartbeat detection signal to the processor; the processor is also used to send the heartbeat detection signal to at least one The device under test; the monitor is also used to monitor whether the processor receives the device identification returned by the device under test and the corresponding heartbeat response signal within the second preset time, so as to determine whether at least one device under test is online.

Specifically, the heartbeat detection signal may refer to a series of randomly generated numbers.

Specifically, in this embodiment, the monitor detects that the processor has not received the device identification returned by the device under test, or the monitor generates a heartbeat detection signal, and detects whether the processor can receive the device identifier returned by the device under test. The device identification and the corresponding heartbeat signal are used to determine whether the device under test is online, and to determine whether the connection wire between the device under test and the processor is normal.

Further, on the basis of the technical solution in Embodiment 1, Fig. 2 is a schematic structural diagram of the input and output interfaces in the communication test device provided in the embodiment of the present utility model. As shown in Fig. 2, the communication test provided in Embodiment 4 The input and output interfaces 300 in the device include: a digital input interface 301 , a digital output interface 302 , an analog input interface 303 and an analog output interface 304 .

In this embodiment, the digital input interface 301 , the digital output interface 302 , the analog input interface 303 and the analog output interface 304 are all connected to the processor 200 .

Specifically, the digital input interface 301 , the digital output interface 302 , the analog input interface 303 and the analog output interface 304 are connected on the backplane.

Further, on the basis of the technical solution in Embodiment 4, the processor in the communication test device provided in Embodiment 5 includes: a power supply unit and a gateway unit; wherein, the power supply unit is used to supply power to the gateway unit; the gateway unit , are respectively electrically connected to the monitor, the digital input interface, the digital output interface, the analog input interface and the analog output interface, and are used for converting the test data and/or the second response data.

Fig. 3 is a schematic structural diagram of a communication test system provided by an embodiment of the present invention. As shown in Fig. 3 , the communication test system provided by this embodiment includes: a communication test device 400 and at least one device to be tested 500, specifically, a device to be tested The device 500 is connected with an input and output interface (not shown in the figure).

Wherein, the communication test device in this embodiment adopts the communication test device in FIG. 1 , its implementation principle and effect are similar, and will not be repeated here.

In this embodiment, the number of devices to be tested is not specifically limited. Fig. 4 is an illustration by taking two devices under test as an example.

It should be noted that before the communication test system provided in this embodiment starts to test the communication function of each device under test, all devices need to be connected into a network through terminal resistors, click on, and observe the indicator lights of each device to ensure that all devices can The communication function of each device is tested only after it is working normally, otherwise, the device needs to be replaced to eliminate the influence of abnormal sending and receiving caused by the device not working normally.

Specifically, the specific working principle of the communication test system is: the input and output interface is electrically connected to at least one device under test and the processor; the monitor generates a heartbeat detection signal and sends the heartbeat detection signal to the processor; the processor is also used for The heartbeat detection signal is sent to at least one device under test through the input and output interface; the monitor is also used to monitor whether the processor receives the device identification returned by the device under test and the corresponding heartbeat response signal within the second preset time to judge Whether at least one device under test is online, if only part of it is online, it means that other parts are not online, and the next operations are all for those online devices under test, the monitor generates test data and corresponds to the test data The first response data, and send the test data to the processor; the processor sends the test data to at least one device under test through the input and output interface; the processor also receives the device identification sent by at least one device under test and the corresponding The second response data, and send each device identification and its corresponding second response data to the monitor; the monitor is used to compare whether the first response data is consistent with the second response data corresponding to each device identification, if there is at least If the second response data is inconsistent with the first response data, the faulty equipment identification corresponding to the second response data inconsistent with the first response is acquired, and a first alarm signal carrying the faulty equipment identification is generated.

Further, on the basis of the technical solutions of the above-mentioned embodiments, FIG. 4 is a schematic structural diagram of the device under test provided by the embodiment of the present invention. As shown in FIG. 4 , the device under test in the communication test device provided by this embodiment 500 includes: an analog input terminal 501 , an analog output terminal 502 , a digital input terminal 503 and a digital output terminal 504 .

In this embodiment, the analog input terminal 501 is connected to the analog output interface 304, the analog output terminal 502 is connected to the analog input interface 303, the digital input terminal 503 is connected to the digital output interface 302, and the digital output terminal 504 Connect with the digital input interface 301.

Optionally, in this embodiment, depending on the type of equipment to be tested, and the number of signal analog and digital quantities that need to be transmitted and verified, in actual measurement, multiple digital input interfaces 301 and digital output interfaces may be required. interface 302 , analog input interface 303 and analog output interface 304 . As shown in Figure 4, a digital input interface, a digital output interface, an analog input interface and an analog output interface are taken as examples for illustration. Specifically, the digital input interface 301 transmits information such as lighting control, door status, and high-voltage box selection switch status; the digital output interface 302 transmits air-conditioning start-stop control, passenger compartment door opening, etc.; It is information such as the level signal of the handle of the controller, cylinder pressure, battery voltage, etc.; the analog output interface 304 transmits information such as train mileage, brake cylinder pressure, etc.

Fig. 5 is a flowchart of the communication test method provided by the embodiment of the present invention. As shown in Fig. 5, the communication test method provided by the present embodiment specifically includes the following steps:

Step S501, generating test data and first response data corresponding to the test data.

Step S502, sending test data to at least one device under test.

Step S503, respectively receiving the device identification sent by at least one device under test and its corresponding second response data.

Step S504, comparing whether the first response data is consistent with the second response data corresponding to each device identifier, if there is at least one second response data inconsistent with the first response data, obtain the second response data inconsistent with the first response The faulty equipment identification, and generate the first alarm signal carrying the faulty equipment identification.

Wherein, the communication testing method in this embodiment is applied to the communication testing system shown in FIG. 4 , and its implementation principle and implementation effect are similar, and will not be repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the embodiments of the present utility model Scope of technical solutions.

Claims (7)

1. A communication test apparatus, comprising: the system comprises a processor, a monitor and an input/output interface;

the input/output interface is electrically connected with at least one device to be tested and the processor;

the monitor is electrically connected with the processor and used for generating test data and first response data corresponding to the test data and sending the test data to the processor;

the processor is used for sending the test data to the at least one device to be tested through the input/output interface;

the processor is further configured to receive an equipment identifier and second response data corresponding to the equipment identifier sent by at least one device to be tested, and send each equipment identifier and the second response data corresponding to the equipment identifier to the monitor;

the monitor is configured to compare whether the first response data is consistent with second response data corresponding to each device identifier, and if at least one second response data is inconsistent with the first response data, obtain a faulty device identifier corresponding to the second response data inconsistent with the first response data, and generate a first alarm signal carrying the faulty device identifier.

2. The apparatus according to claim 1, wherein the monitor is further configured to generate a second alarm signal carrying the device identifier without returning the second response data when detecting that the processor does not receive the device identifier of the second response data returned by the device to be tested within a first preset time.

3. The apparatus of claim 1, wherein the monitor is further configured to generate a heartbeat detection signal and send the heartbeat detection signal to the processor;

the processor is further configured to send the heartbeat detection signal to the at least one device under test through the input/output interface;

the monitor is further configured to monitor whether the processor receives an equipment identifier and a corresponding heartbeat response signal, which are returned by the equipment to be tested, within a second preset time, so as to determine whether the at least one equipment to be tested is online.

4. The apparatus of claim 1, wherein the input-output interface comprises: the digital quantity input interface, the digital quantity output interface, the analog quantity input interface and the analog quantity output interface;

the digital input interface, the digital output interface, the analog input interface and the analog output interface are all connected with the processor.

5. The apparatus of claim 4, wherein the processor comprises: a power supply unit and a gateway unit; wherein,

the power supply unit is used for supplying power to the gateway unit;

the gateway unit is respectively electrically connected with the monitor, the digital quantity input interface, the digital quantity output interface, the analog quantity input interface and the analog quantity output interface and is used for converting the test data and/or the second response data.

6. A communication test system, comprising: the communication test apparatus of any of claims 1-5 and at least one device under test, the device under test being connected to the input output interface.

7. The system of claim 6, wherein the device under test comprises: the analog quantity input end, the analog quantity output end, the digital quantity input end and the digital quantity output end;

the analog input end is connected with the analog output interface, the analog output end is connected with the analog input interface, the digital input end is connected with the digital output interface, and the digital output end is connected with the digital input interface.