CN212568885U - Multi-test configuration switching device of bus - Google Patents
Multi-test configuration switching device of bus Download PDFInfo
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- CN212568885U CN212568885U CN202021280101.6U CN202021280101U CN212568885U CN 212568885 U CN212568885 U CN 212568885U CN 202021280101 U CN202021280101 U CN 202021280101U CN 212568885 U CN212568885 U CN 212568885U
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Abstract
The utility model discloses a many test configuration auto-change over device of bus, including the low level tandem terminal group that is used for transmitting the high level signal group of high level and is used for transmitting the low level signal, high level tandem terminal group is the same with the structure of low level tandem terminal group, all including at least one emulation terminal group that is used for connecting simulation equipment, emulation terminal group includes terminal B and terminal C, at least one monitor terminal group for connecting monitoring equipment, monitor terminal group includes terminal F and terminal G, and be used for connecting at least one true terminal group of true piece equipment, true piece terminal group is including the terminal A who arranges in proper order, terminal D, terminal E and terminal H. Based on above-mentioned configuration switching device, just can realize the switching of multiple complicated configuration through plug and bridging terminal, compare in the tradition and change the mode of test configuration through line ball and bonding wire, easy and simple to handle is quick, and can show reduction misoperation rate.
Description
Technical Field
The utility model relates to an equipment test configuration technique, more specifically the many test configuration auto-change over device that says so relates to a bus.
Background
Before mass production or use, some large-scale electronic mechanical equipment needs to be tested in performance, so that a test configuration needs to be built to carry out junction of different modes on real equipment, monitoring equipment and simulation equipment, and test functions such as test signal simulation injection, real equipment signal monitoring and the like are realized.
Taking the ARINC825 bus as an example, the real device, the ARINC825 simulation device, and the ARINC825 monitoring device are used as nodes of the ARINC825 bus, and are mounted on the ARINC825 bus, so as to ensure normal communication of ARINC825 signals. And the mounting of the device on the ARINC825 bus is mainly realized by pressing lines or bonding wires. When different test requirements need to be met, namely the test configuration of switching ARINC825 bus signals is switched, the corresponding nodes also need to be subjected to wire pressing or wire bonding again.
However, the method for switching the test configuration of the ARINC825 bus signal adopts a manual wiring and line fixing mode, so that the method has the problems of low efficiency and easy error.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a many test configuration auto-change over device of bus to the realization carries out convenient succinct switching to the test configuration of bus signal.
In order to achieve the above object, the utility model provides a following technical scheme:
a multi-test configuration switching device of a bus comprises a high-level junction terminal group used for transmitting high-level signals and a low-level junction terminal group used for transmitting low-level signals, wherein the high-level junction terminal group and the low-level junction terminal group have the same structure;
the high-level junction terminal group and the low-level junction terminal group respectively include: the terminal group comprises a terminal A, a terminal D, a terminal E and a terminal H which are sequentially arranged, wherein the terminal A and the terminal H are used for connecting real equipment, and the terminal D and the terminal E are internally short-circuited;
the simulation terminal group, the monitoring terminal group and the real terminal group can be bridged among the terminals, and different bridging relations can be used for mounting different bus nodes.
Optionally, the signal connection function of the breakpoint of the bus is integrated on the terminals in the simulation terminal group, the monitoring terminal group and the real terminal group;
or the like, or, alternatively,
the multi-test configuration switching device of the bus further comprises: a DB connector for connecting the multi-test configuration switching device to a bus segment trunk, wherein the bus segment trunk is a line between the multi-test configuration switching device and a mount point of a bus node.
Optionally, the DB connector is disposed on a back panel or a side panel of the multi-test configuration switching device, and the high-level junction terminal group and the low-level junction terminal group are disposed on a front panel of the multi-test configuration switching device.
Optionally, the length of a line between the bus node and the mount point corresponding to the bus node is less than or equal to 1 meter.
Optionally, distances between the terminal B and the terminal C, the terminal F and the terminal G, the terminal a and the terminal D, the terminal E and the terminal H, the terminal B and the terminal a, the terminal C and the terminal D, the terminal F and the terminal E, and the terminal G and the terminal H are the same.
Optionally, in a test configuration of the real device interconnection, the terminal a and the terminal D are bridged, and the terminal E and the terminal H are bridged.
Optionally, in the simulation test configuration, terminal C and terminal D are bridged, and terminal E and terminal H are bridged.
Optionally, in the monitoring test configuration, terminal E and terminal F are bridged, terminal G and terminal H are bridged, and terminal a and terminal D are bridged.
Optionally, in the simulation and monitoring test configuration, the terminal a is bridged with the terminal B, the terminal C is bridged with the terminal D, the terminal E is bridged with the terminal F, and the terminal G is bridged with the terminal H.
Optionally, all the terminals in the high-level junction terminal group and the low-level junction terminal group are banana terminals.
Compared with the prior art, the utility model discloses a multi-test configuration switching device of bus, which comprises a high-level junction terminal group for transmitting high-level signals and a low-level junction terminal group for transmitting low-level signals, wherein the high-level junction terminal group and the low-level junction terminal group have the same structure and comprise at least one simulation terminal group for connecting simulation equipment, the simulation terminal group comprises a terminal B and a terminal C, at least one monitoring terminal group for connecting monitoring equipment, the monitoring terminal group comprises a terminal F and a terminal G, and at least one real terminal group for connecting real equipment, wherein the real terminal group comprises a terminal A, a terminal D, a terminal E and a terminal H which are sequentially arranged, wherein terminal A and terminal H are used for connecting genuine equipment, and terminal D and terminal E are short-circuited internally. Based on above-mentioned configuration switching device, just can realize the switching of multiple complicated configuration through plug and bridging terminal, compare in the tradition and change the mode of test configuration through line ball and bonding wire, easy and simple to handle is quick, and can show reduction misoperation rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a switching device of multiple test configurations of an ARINC825 bus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the ARINC825 bus basic architecture;
fig. 3 is a schematic diagram of a tandem connection mode of a multi-test configuration switching device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a mounting point position of an ARINC825 node according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the distance between terminals according to the embodiment of the present invention;
fig. 6 is a schematic diagram of a bridge connection of the test configuration of the real device interconnection disclosed in the embodiment of the present invention;
fig. 7 is a schematic diagram of a bridge connection of simulation test configurations disclosed in an embodiment of the present invention;
fig. 8 is a schematic view of a bridge connection of monitoring test configurations disclosed in an embodiment of the present invention;
fig. 9 is a schematic diagram of a simulation and monitoring test configuration bridge according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses many test configuration auto-change over device of bus CAN be applied to multiple bus, like ARINC825 bus, Flexray bus, serial communication bus, CAN bus etc. when being applied to different buses, the principle effect that many test configuration auto-change over device of bus carried out the test configuration and switches is the same. In order to facilitate better understanding of the specific implementation of the present invention, in the following embodiments, a multi-test configuration switching device of the ARINC825 bus will be taken as an example for corresponding description. It is understood that ARINC825 in the context of the following embodiments may be replaced correspondingly in its entirety by Flexray, serial communication bus or CAN bus in different implementations; and the ARINC825/Flexray bus and the like can also be directly formed into a bus.
Fig. 1 is a schematic structural diagram of a switching device with multiple test configurations of an ARINC825 bus according to an embodiment of the present invention, wherein "simulation", "monitoring" and "real" are not comments on corresponding units or modules, and can be used as an auxiliary identifier.
Referring to fig. 1, the switching device of the multiple test configurations of the ARINC825 bus may include a high-level junction terminal group for transmitting a high-level signal of the ARINC825 and a low-level junction terminal group for transmitting a low-level signal of the ARINC825, and the high-level junction terminal group and the low-level junction terminal group have the same structure. The high-level junction terminal group is used for transmitting an ARINC825 high-level signal Hi, and the low-level junction terminal group is used for transmitting an ARINC825 low-level signal Lo.
The high-level junction terminal group and the low-level junction terminal group respectively include: at least one simulation terminal group for connecting simulation equipment, simulation terminal group includes terminal B and terminal C for connect monitoring equipment's at least one control terminal group, control terminal group includes terminal F and terminal G and is used for connecting true terminal group of piece equipment at least one, true terminal group is including terminal A, terminal D, terminal E and the terminal H that arranges in proper order, and wherein terminal A and terminal H are used for connecting true equipment, the inside short circuit of terminal D and terminal E. It is obvious that the number of the simulation terminal group, the monitoring terminal group and the genuine terminal group is respectively matched with the number of the simulation device, the monitoring device and the genuine device.
It should be noted that, in order to more clearly and accurately understand the present implementation, only one simulation terminal set, one monitoring terminal set, and one real terminal set are shown in fig. 1, and in practical applications, a plurality of simulation terminal sets, monitoring terminal sets, and real terminal sets may be configured as needed. For example, the terminals in the added simulation terminal group may be B1, C1, B2, C2 … …, etc., and the monitoring terminal group and the real terminal group are the same.
The simulation terminal group, the monitoring terminal group and the real terminal group can be bridged among the terminals, and different bridging relations can be used for mounting different bus nodes. In a specific implementation, the disconnection points of the ARINC825 trunk line can be displayed in a terminal form, a user can use a plurality of terminal bridges to connect different ARINC825 disconnection points, two disconnection points are communicated to form one configuration, and the connection combination of different disconnection points can form different test configurations, so that the switching of multiple ARINC825 test configurations can be conveniently realized.
It should be noted that, because the switching device is used in the ARINC825 bus environment, the multi-test configuration switching device needs to conform to the basic electrical specification of the ARINC825 bus, and the cable specification, the total trunk length, the node branch length, the distance between nodes, the distance between the end node and the terminal resistor, and the like of the switching device need to be within the range required by the bus specification. The nodes can be real devices, ARINC825 simulation devices and ARINC825 monitoring devices, and the nodes are branched to lines between the nodes and the mounting points of the nodes. Fig. 2 is a basic architecture diagram of ARINC825 bus, which can be understood in conjunction with fig. 2. In fig. 2, ARINC825 node 1, ARINC825 node 2, ARINC825 node 3, … …, and ARINC825 node n represent real devices, simulation devices, monitoring devices, and the like, and R is a termination resistance.
In addition, the numbers of the terminal B and the terminal C are interchangeable, the numbers of the terminal F and the terminal G are interchangeable, and the numbers of the terminal a and the terminal H are interchangeable.
The multi-test configuration switching device can realize switching of various complex configurations through the plugging and pulling terminals and the bridging terminals in application, is simple and quick to operate compared with a traditional mode of changing the test configurations through pressing lines and bonding wires, and can obviously reduce the operation error rate.
In the above embodiment, the signal connection function of the breakpoint of the bus is integrated on the terminals in the simulation terminal group, the monitoring terminal group, and the real terminal group, so that the communication of different lines can be directly realized by bridging different terminals. Of course, this is one implementation and there are other implementations in other implementations. For example, on the basis of the disclosure of the above embodiments, the multi-test configuration switching apparatus may further include: a DB connector for connecting the multi-test configuration switching devices to ARINC825 bus segment trunks, wherein the ARINC825 bus segment trunks are lines between the multi-test configuration switching devices and mount points of ARINC825 nodes.
The DB connector can be a DB9 connector or a DB15 connector. In an actual application scenario, the main operation content of the multi-test configuration switching device is to perform bridge switching on the terminals in the high-level junction terminal group and the low-level junction terminal group, and the connection between the multi-test configuration switching device and the ARINC825 bus segment trunk line is not changed, so that the DB connector can be disposed at a non-conspicuous position in the multi-test configuration switching device, such as on a back panel or a side panel of the multi-test configuration switching device, and the high-level junction terminal group and the low-level junction terminal group are disposed on a front panel of the multi-test configuration switching device.
Thus, the multi-test configuration switching device accesses the ARINC825 bus segment trunk of the genuine equipment, the ARINC825 simulation equipment and the ARINC825 monitoring equipment respectively through the DB connector, and completes the connection of the segment trunk at the position to form a complete ARINC825 link.
In order to better understand the switching device with multiple test configurations of the ARINC825 bus disclosed in the embodiment of the present invention, fig. 3 shows a tandem connection manner of the switching device with multiple test configurations.
Referring to fig. 3, terminals B and C, identified as "emulation", are shorted at the spur connections of the ARINC825 emulation device, and the conductors between terminals B and C and the shorting point (i.e., the mounting point of the emulation device) serve as emulation devices to the ARINC825 bus segment trunk of the multi-test configuration switching apparatus.
The terminals F and G identified as "monitor" are shorted at the spur connections of the ARINC825 monitoring device, and the wires between the terminals F and G and the shorting point are connected as monitoring devices to the multiple test configuration switching apparatus ARINC825 bus segment trunk.
Of terminals a, D, E and H, identified as "true", terminals D and E are shorted inside the ARINC825 multi-configuration switching device. The terminal A or the terminal H is connected to the ARINC825 branch line connection position of the real device, and a wire between the terminal A or the terminal H and the short-circuit point is used as the real device and is connected to the ARINC825 bus segment main line of the multi-test configuration switching device.
The real device, ARINC825 simulation device and ARINC825 monitoring device are used as nodes of an ARINC825 bus, and are mounted on an ARINC825 segmented trunk by using short branches. Wherein short branch line is the circuit between ARINC825 node and its corresponding mounting point, because ARINC825 norm requires the short branch line can not exceed 1 meter, consequently the embodiment of the utility model provides an, the circuit length between ARINC825 node and its corresponding mounting point should be less than or equal to 1 meter, and the mounting point should be close to the node side as far as possible promptly.
In practical application, the distance between the simulation equipment and the physical space position of the multi-test configuration switching device is objectively limited, the terminal B and the terminal C are used as the ARINC825 simulation equipment at two ends of the multi-test configuration switching device ARINC825 bus segment main line, and the mounting point is designed to be as far away from the terminal B and the terminal C as possible. Fig. 4 is a schematic diagram of a mounting point position of the ARINC825 node according to an embodiment of the present invention, which can be understood by referring to fig. 4. The segmented trunk illustrated in fig. 4 is also an ARINC825 bus segmented trunk.
Since the multi-test configuration switching device realizes rapid switching of a plurality of configurations through terminal bridging, distances between terminals adjacent in the horizontal and vertical directions and possibly needing bridging can be set to be consistent in design, so that the same kind of terminal bridging can be used. Fig. 5 is a schematic diagram of distances between terminals according to an embodiment of the present invention, and with reference to fig. 5, ha, hb, hc, la, lb, and lc represent distances between adjacent terminals in the horizontal and vertical directions, respectively, and these lengths may be set to equal lengths. That is, the distances between the terminals B and C, F and G, a and D, E and H, B and a, C and D, F and E, and G and H are the same.
Fig. 6 is the utility model discloses a test configuration bridging schematic diagram of true piece of equipment interconnection, as shown in fig. 6, bridges sign "true piece" module terminal A and terminal D, terminal E and terminal H respectively, and terminal D and terminal E are inside to have short circuit, have just formed the connecting channel of true piece of equipment. The configuration only has a real part mounted on an ARINC825 main line, and is a test configuration for interconnection of real parts and equipment.
Fig. 7 is a schematic diagram of bridging of simulation test configurations disclosed in the embodiment of the present invention, as shown in fig. 7, the terminal C and the terminal D are bridged, the terminal E and the terminal H are bridged, and the terminal D and the terminal E are short-circuited inside, so that a connection path between a real device and a simulation device is formed. The configuration is that the simulation equipment and the real equipment are mounted on an ARINC825 main line and is a simulation test configuration. This configuration can also be used for fault injection of the ARINC825 signal at the same time.
Fig. 8 is the utility model discloses a control test configuration bridging schematic diagram, as shown in fig. 8, with terminal E and terminal F, terminal G and terminal H bridging, terminal A and terminal D bridging, terminal D and the inside short circuit that has of terminal E. The configuration is that the monitoring equipment and the genuine equipment are mounted on an ARINC825 main line, and the ARINC825 signal monitoring test configuration of the genuine equipment is realized.
Fig. 9 is a schematic diagram of a simulation and monitoring test configuration bridge, as shown in fig. 9, which bridges terminal a and terminal B, terminal C and terminal D, bridges terminal E and terminal F, terminal G and terminal H, and has been shorted inside terminal D and terminal E. Under the configuration, real piece equipment, simulation equipment and monitoring equipment are all mounted on an ARINC825 main line to form a simulation and monitoring test configuration.
The multi-test configuration switching device of the ARINC825 bus in each of the above embodiments, all the terminals in the high-level junction terminal group and the low-level junction terminal group can be, but are not limited to, banana terminals, and can be applied to the scheme of the present invention as long as the terminal types bridging different terminals can be satisfied.
The switching device with multiple test configurations of the ARINC825 bus in the embodiment can realize switching of multiple complex configurations through plugging and unplugging and bridging terminals, is simple and quick to operate compared with a traditional mode of changing the test configurations through pressing lines and bonding wires, and can obviously reduce the operation error rate.
Meanwhile, in application, the multi-test configuration switching device of the ARINC825 bus can be designed as an overhead device, so that the switching device can be installed in a standard cabinet, and operation and maintenance are facilitated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The multi-test configuration switching device of the bus is characterized by comprising a high-level junction terminal group used for transmitting high-level signals and a low-level junction terminal group used for transmitting low-level signals, wherein the high-level junction terminal group and the low-level junction terminal group have the same structure;
the high-level junction terminal group and the low-level junction terminal group respectively include: the terminal group comprises a terminal A, a terminal D, a terminal E and a terminal H which are sequentially arranged, wherein the terminal A and the terminal H are used for connecting real equipment, and the terminal D and the terminal E are internally short-circuited;
the simulation terminal group, the monitoring terminal group and the real terminal group can be bridged among the terminals, and different bridging relations can be used for mounting different bus nodes.
2. The multi-test configuration switching device of the bus according to claim 1, wherein the signal connection function of the break point of the bus is integrated on the terminals in the emulation terminal group, the monitor terminal group, and the genuine terminal group;
or the like, or, alternatively,
the multi-test configuration switching device of the bus further comprises: a DB connector for connecting the multi-test configuration switching device to a bus segment trunk, wherein the bus segment trunk is a line between the multi-test configuration switching device and a mount point of a bus node.
3. The multi-test configuration switching device of claim 2, wherein the DB connector is provided on a back panel or a side panel of the multi-test configuration switching device, and the high-level junction terminal group and the low-level junction terminal group are provided on a front panel of the multi-test configuration switching device.
4. The multi-test configuration switching device of the bus according to claim 3, wherein a line length between the bus node and the mount point corresponding thereto is less than or equal to 1 meter.
5. The multi-test configuration switching device of the bus according to claim 1, wherein distances between the terminal B and the terminal C, the terminal F and the terminal G, the terminal a and the terminal D, the terminal E and the terminal H, the terminal B and the terminal a, the terminal C and the terminal D, the terminal F and the terminal E, and the terminal G and the terminal H are the same.
6. The multi-test configuration switching apparatus of claim 1, wherein in a test configuration in which real devices are interconnected, terminal a is bridged with terminal D, and terminal E is bridged with terminal H.
7. The multi-test configuration switching arrangement of claim 1, wherein in the emulation test configuration, terminal C is bridged to terminal D and terminal E is bridged to terminal H.
8. The multi-test configuration switching arrangement of claim 1, wherein in the monitor test configuration, terminal E is bridged with terminal F, terminal G is bridged with terminal H, and terminal a is bridged with terminal D.
9. The bus multi-test configuration switching device of claim 1, wherein in the simulation and monitoring test configuration, terminal a is bridged with terminal B, terminal C is bridged with terminal D, terminal E is bridged with terminal F, and terminal G is bridged with terminal H.
10. The bus multi-test configuration switching device according to any one of claims 1 to 9, wherein all the terminals in the high-level junction terminal group and the low-level junction terminal group are banana terminals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021280101.6U CN212568885U (en) | 2020-07-02 | 2020-07-02 | Multi-test configuration switching device of bus |
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| CN202021280101.6U CN212568885U (en) | 2020-07-02 | 2020-07-02 | Multi-test configuration switching device of bus |
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| CN212568885U true CN212568885U (en) | 2021-02-19 |
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