CN211930641U - Vehicle-mounted transponder transmission module assembly and test equipment thereof - Google Patents

Abstract

The utility model provides a vehicle-mounted transponder transmission assembly that is used for test equipment (50) of vehicle-mounted transponder transmission module (1) and has this test equipment (50). The test apparatus (50) comprises: -a controlled switching element (52), the switching element (52) being able to be connected in series between the transmitting device (20) and the receiving device (40); a controller (54) capable of controlling the switching element (52) to be turned on or off. The test equipment (50) can be used for conveniently controlling the length of data received by the decoding device (10) so as to test the vehicle-mounted transponder transmission module.

Description

Vehicle-mounted transponder transmission module assembly and test equipment thereof

Technical Field

The utility model relates to a track traffic technical field, in particular to are used for carrying out the test equipment who tests to on-vehicle transponder transmission module to and have this test equipment's on-vehicle transponder transmission module subassembly.

Background

A transponder is a point device for ground-based transmission of information to a train, typically placed on a track at predetermined intervals, for example between two rails. The transponder device typically transmits to the on-board train control device any of the following information: basic parameters of the route, such as the gradient of the route, track sections and other parameters; line speed information, such as maximum allowable speed of the line, maximum allowable speed of the train, and the like; temporary speed limit information, for example, when the train running speed is limited due to construction and the like, temporary speed limit information is provided for the train; the station route information provides parameters such as 'line gradient', 'line speed', 'track section' and the like for the train according to the station receiving and sending route; the turnout information gives the speed of the front turnout allowing the train to run laterally; special positioning information, such as lifting bows, entering and exiting tunnels, whistling, train positioning and the like; and other information such as fixed obstacle information, train operation target data, link data, and the like.

Transponders can be divided into passive transponders and active transponders. The passive transponder has no power supply configuration and is used for sending fixed and unchangeable data to the vehicle-mounted train control equipment and providing fixed parameters of a line, such as line gradient, line allowable speed, track circuit parameters, link information, train control grade switching and the like. The active transponder is provided with a power supply, for example a control centre connected to the ground subsystem via a dedicated cable, which can transmit variable information to the onboard train control equipment in accordance with messages from the ground subsystem.

The principle of operation is the same whether it is a passive transponder or an active transponder. When a train passes above the ground transponder, after the transponder receives electromagnetic energy transmitted by the vehicle-mounted transponder transmission module through the antenna, the transponder converts the energy into a working power supply, activates an electronic circuit of the transponder to work, encapsulates prestored/obtained information into data frames and circularly transmits the data frames until the electromagnetic energy disappears.

In order to ensure the driving safety, the communication condition of the transponder is generally required to be tested for a long time before the train is on line. Improving test effectiveness and test rate becomes an important consideration.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the utility model is to provide a test equipment for testing on-vehicle transponder transmission module, it can effectively improve the test effect. Another object of the utility model is to provide a be suitable for on-vehicle transponder transmission assembly who tests, it is convenient for test transponder transmission module.

On the one hand, the embodiment of the utility model provides a test equipment, it can be convenient for test on-vehicle transponder transmission module, a serial communication port, include: two first connection ends which can be connected to one transmitting device and one receiving device in the vehicle-mounted transponder transmission module respectively; a controlled switching element connected between the two first connection terminals and capable of being turned on or off in response to a control signal, wherein the switching element is capable of being connected in series between the transmitting device and the receiving device in a case where the test apparatus is connected to the in-vehicle transponder transmission module; a controller capable of sending the control signal to the switching element to control the switching element to be turned on or off. Preferably, the switching element is a relay, a digital isolator, a controlled diode or a triode.

In another aspect, an embodiment of the present invention provides a vehicle-mounted transponder transmission assembly suitable for testing, which is capable of receiving a data frame from a transponder via an antenna, and includes: a transmitting device connected to said antenna and transmitting electromagnetic signals via said antenna to activate said transponder within coverage of said electromagnetic signals while receiving data frames from said activated transponder; a receiving device capable of receiving data frames from said transponder from said transmitting device; a decoding device that decodes the data frame from the receiving device and transmits the decoded content to an in-vehicle control apparatus; a test device which can be connected alternatively in series between the transmitting device and the receiving device, two first connection terminals which can be connected to the transmitting device and the receiving device, respectively; a controlled switching element connected between the two first connection terminals and capable of being turned on or off in response to a control signal, wherein the switching element is connected in series between the transmitting device and the receiving device; a controller capable of sending the control signal to the switching element to control the switching element to be turned on or off.

Preferably, under normal operating conditions, the controller sends the control signal to cause the switching element to be in a conducting state. More preferably, in normal operating conditions, the test device can be replaced by an electrically conductive connecting line, which is connected between the transmitting device and the receiving device. Preferably, the switching element is a relay, a digital isolator, a controlled diode or a triode.

Adopt the utility model provides a test equipment can switch on or turn off the connection between sending device and the receiving device through control, and the data volume of decoding device in the transponder sends for on-vehicle transponder transmission module during the test of effective control. By means of this test device, the length of the data frame sent by the transponder to the decoding device in the on-board transponder transmission module can be controlled during the test.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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.

FIG. 1 shows a block diagram of a transponder and an in-vehicle transponder transmission module;

fig. 2 shows a block diagram of a test device and a vehicle-mounted transponder transmission module according to an embodiment of the present invention.

List of reference numerals:

1: vehicle-mounted transponder transmission module 10: the decoding device 20: transmitting device

30: connecting line 40: the receiving device 60: antenna with a shield

50: the test apparatus 90: transponder

52: switching element 54: controller

D1, D2, connecting ends C1, C2: connecting end

Detailed Description

Fig. 1 shows an exemplary schematic representation of a transponder and a vehicle-mounted transponder transmission module communicating with the transponder.

As shown in fig. 1, the vehicle-mounted transponder transmission module 1 includes a decoding device 10, a transmitting device 20, and a receiving device 40. The transmitting device 20 is connected to an antenna 60 and is capable of transmitting an electromagnetic signal via the antenna 60 to activate a transponder 90 within the coverage of the electromagnetic signal. The transponder 90 receives the electromagnetic signal, converts it to electrical energy and activates the electrical circuitry in the transponder 90. Thus, an active transponder 90 may continue to wirelessly transmit data frames until the activation energy is removed. The transmitting device 20 is enabled to receive data frames from the activated transponder 90 via the antenna 60. Typically the data frame is transmitted encrypted.

In normal operation, as shown in fig. 1, the transmitting device 20 and the receiving device 40 are connected by an electrically conductive connection line 30. In practical applications, the connection terminals C1 and C2 shown in fig. 1 are placed on the panel of the vehicle-mounted device. In normal operation, an operator may use a jumper 30 to connect the terminals C1 and C2. The data frame received by the transmitting device 20 from the transponder 90 is passed to the receiving device 40 via the connection 30, and the receiving device 40 passes the data frame from the transponder to the decoding device 10. The decoding device 10 can decode the data frame from the transponder and then transmit the decoded parameters or contents to the vehicle-mounted train control equipment for corresponding operation.

Fig. 1 shows the case of the structure of the on-board transponder transmission module in actual operation. Before actual operation, the transmitting device, the receiving device and the decoding device need to be tested. In order to improve the efficiency of the test, it is desirable to place a qualified transponder close to the antenna 60 of fig. 1 so that the transponder can continue to transmit data frames and then test whether the decoding device 10 can always correctly decode the information transmitted by the transponder. However, since the antenna passes the transponder rapidly when the train is actually running, the data received by the receiving device and the decoding device is very small. Such ideal test patterns often receive long data, resulting in inability to test the processing or decoding capabilities of the receiving device or decoding device for short data.

In order to realize the above-mentioned comparatively ideal test mode, the utility model provides a test equipment 50 for testing on-vehicle transponder transmission module. The test device 50 has two connection terminals D1 and D2, which can be connected to the panel-mounted transponder connection terminals C1 and C2, respectively. As shown in fig. 2, the test equipment 50 includes a controlled switching element 52 and a controller 54. The switching element 52 is connected between the two connection terminals D1 and D2 and can thus be connected in series between the transmitting device 20 and the receiving device 40 of the vehicle-mounted transponder transmission module 1. The switching element 52 may be a relay, a digital isolator, a controlled diode or transistor, or other device capable of performing a line on or off function. The controller 54 may control the operation of the switching element 52. The controller 54 may be any commercially available Microcontroller (MCU) or similar device, or any device capable of outputting a predetermined on/off signal. The controller 54 sends a control signal to the switching element 52 to control the switching element 52 to be turned on and off. During the test period, in order to control the length of data transmitted from the receiving device to the decoding device, the frequency and duty ratio of the operation of the switching element 52 need to be set in advance in the controller 54. For example, if the train is tested to pass the transponder at a high speed, the on-time of the switching element 52 is relatively small; if the train is tested for low speed passing the transponder, the on time of the switching element 52 may be relatively long.

In this manner, by controlling the time of connection between the sending device 20 and the receiving device 40, the amount of data transferred from the sending device 20 to the receiving device 40 can be effectively controlled. Thus, the continuous and efficient test of the vehicle-mounted transponder transmission module is realized.

Furthermore, the test device 50 is simple in construction and replaceable. At test time, test equipment 50 may be inserted into the panel at connections C1 and C2. In normal operation, the test device 50 can be replaced by a connecting line 30 (jumper). Alternatively, the test device 50 may also form a vehicle transponder transmission assembly together with a vehicle transponder transmission module as an integral part, the structure of which is shown in fig. 2. During the test, the controller 54 controls the switch element 52 according to a predetermined on-off signal to test the decoding capability of the decoding device at various vehicle speeds. In normal operation, the controller 54 may control the switching element 52 to be always in the conducting state, so as to obtain the data frame from the transponder in time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.

Finally, it is to be noted that: the above is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, but not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.

Claims (6)

1. Test device (50) for a vehicle-mounted transponder transmission module (1), characterized in that it comprises:

two first connection terminals (D1, D2) connectable to one transmitting device (20) and one receiving device (40) respectively in the vehicle transponder transmission module (1);

a controlled switching element (52) which is connected between the two first connection terminals (D1, D2) and can be switched on or off in response to a control signal, wherein the switching element (52) can be connected in series between the transmitting device (20) and the receiving device (40) in the case of a connection of the test device (50) to the vehicle-mounted transponder transmission module (1);

a controller (54) capable of sending the control signal to the switching element (52) to control the switching element to be turned on or off.

2. The test apparatus (50) of claim 1, wherein the switching element (52) is a relay, a digital isolator, a controlled diode, or a transistor.

3. A vehicle transponder transmission assembly adapted for testing capable of receiving data frames from a transponder (90) via an antenna (60), comprising:

-a transmitting device (20) connected to said antenna (60) and transmitting electromagnetic signals via said antenna (60) to activate said transponder (90) within the coverage of said electromagnetic signals, while receiving data frames from said activated transponder (90);

-a receiving device (40) capable of receiving data frames from said transponder (90) from said transmitting device (20);

a decoding device (10) that decodes the data frame from the receiving device (40) and transmits the decoded content to an in-vehicle control apparatus;

a test apparatus (50) alternatively connected in series between said transmitting device (20) and said receiving device (40), said test apparatus (50) comprising:

two first connection terminals (D1, D2) connectable to the transmitting device (20) and the receiving device (40), respectively;

a controlled switching element (52) connected between the two first connection terminals (D1, D2) and capable of being turned on or off in response to a control signal, wherein the switching element (52) is connected in series between the transmitting device (20) and the receiving device (40);

a controller (54) capable of sending the control signal to the switching element (52) to control the switching element (52) to be turned on or off.

4. A vehicle transponder transmission assembly according to claim 3, characterized in that under normal operating conditions the controller (54) sends the control signal so that the switching element (52) is in a conductive state.

5. A vehicle transponder transmission assembly according to claim 3, characterized in that the test device (50) can be replaced by an electrically conductive connection line (30) in normal operating conditions, the connection line (30) being connected between the transmitting device (20) and the receiving device (40).

6. A vehicle transponder transmission assembly according to claim 3, characterized in that the switching element (52) is a relay, a digital isolator, a controlled diode or a triode.

Images