CN216213169U

CN216213169U - Multi-dimensional multi-channel switch matrix system

Info

Publication number: CN216213169U
Application number: CN202122336217.8U
Authority: CN
Inventors: 徐熹; 徐伟; 华琴娣
Original assignee: Nanjing Tianlang Defense Technology Co ltd
Current assignee: Nanjing Tianlang Defense Technology Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-04-05
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a multidimensional multi-channel switch matrix system, which comprises 64 channels, 8 single-pole four-throw switches, 4 two-way power dividers, 2 four-way power dividers, 9 eight-way power dividers, 2 single-pole eight-throw switches SW8A and SW8B, wherein each 8 channels are connected with one eight-way common divider, the eight-way common divider combines 8 inputs into 1 channel output and is connected with a movable end of the single-pole four-throw switch, four fixed ends of the single-pole four-throw switch are sequentially connected with the input ends of the two-way power dividers, the four-way power dividers and the eight-way common divider and the fixed end of SW8B, the output ends of the two-way power dividers, the four-way power dividers and the eight-way common divider are connected with a fixed end of SW8A, the movable ends of SW8A and SW8B are connected with a test instrument, and the synthesis and switching among the channels are realized by controlling the single-pole four-throw switches and the single-pole eight-throw switches.

Description

Multi-dimensional multi-channel switch matrix system

Technical Field

The utility model relates to the field of switch matrixes, in particular to a multi-dimensional multi-channel switch matrix system.

Background

Most of conventional radio frequency signal switch matrixes are one-to-one channels and many-to-one channels, along with more and more application requirements of the front end of a radar subarray level, when index testing is carried out on a digital subarray, index testing is often carried out after subarray level multi-channel synthesis, and the conventional switch matrixes cannot be completed at the moment.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model discloses a multi-dimensional multi-channel switch matrix system which can meet the synthesis or switching of channel units in a digital subarray, improve the test dimension of a switch matrix and meet the requirement of a subarray multi-channel synthesis test.

A multi-dimensional multi-channel switch matrix system comprises a 64-channel switch matrix system, a control system and an upper computer, wherein the upper computer is connected with the control system through a network switch, the control system responds to a control command sent by the upper computer and sends a matrix control command to the 64-channel switch matrix system, and switches in the 64-channel switch matrix system respond to the matrix control command to switch so as to realize interconnection and intercommunication among channels; the 64-path switch matrix system comprises 64 paths of channels, 8 single-pole four-throw switches, 4 two-way power dividers, 2 four-way power dividers, 9 eight-way power dividers, 2 single-pole eight-throw switches SW8A and SW8B, wherein each 8 paths of channels are connected with one eight-way power divider, the eight-way power dividers combine 8 paths of input into 1 path of output and are connected with the movable end of the single-pole four-throw switch, four immovable ends of the single-pole four-throw switch are sequentially connected with the input ends of the two-way power dividers, the four-way power dividers and the eight-way power divider and the immovable end of SW8B, the output ends of the two-way power dividers, the four-way power dividers and the eight-way power dividers are connected with the immovable end of SW8A, and the movable ends of SW8A and SW8B are used for connecting with a test instrument.

Preferably, the control system comprises an Ethernet module, an ARM, a drive board and a status indicator, the Ethernet module, the ARM and the drive board are sequentially connected, the status indicator is connected with the ARM to display the current status, and the Ethernet module is connected with an upper computer through a network switch to realize interconnection of the control system and the upper computer.

Preferably, when the control system sends a matrix control command, the driving board provides a driving signal for the switch matrix, and the switch inside the switch matrix switches channels by responding to the driving control signal.

Preferably, the single pole, four throw switch is SP 4T.

Preferably, the drive signal controls the operation of the single-pole four-throw switch and the single-pole eight-throw switch to control the combination and switching between the channels.

Has the advantages that:

(1) the utility model can meet the requirement of a system on the synthesis test of the sub-array channels by switching the switch circuit in the matrix, and improves the test dimension of the switch matrix and the universality of the switch matrix.

(2) The utility model utilizes the single-pole multi-throw switch and the corresponding power divider to flexibly realize the synthesis and the splitting of the subarray channel, and has simple device, strong practicability and low cost;

(3) the utility model can realize the synthesis and the splitting of the subarray channel only by controlling the switching of the single-pole multi-throw switch, and has simple control and high efficiency.

(4) The utility model can meet the test requirements of more channels by splicing a plurality of same matrix systems.

Drawings

FIG. 1 is a schematic diagram of the system components of one embodiment of the present invention;

FIG. 2 is a schematic diagram of an 8-channel connection according to one embodiment of the present invention;

FIG. 3 is a schematic diagram of a switch matrix according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a switch matrix front panel according to one embodiment of the utility model;

fig. 5 is a schematic diagram of a rear panel of a switch matrix according to an embodiment of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model discloses a multi-dimensional multi-channel switch matrix system, which can meet the power division synthesis among 8 channels, 16 channels and 32 channels in a 64-channel unit in a digital sub-matrix or the switching between any single-channel and 64-channel synthesis through the interconnection of multi-dimensional multi-channel radio frequency switches, so that the switch matrix is greatly improved in the aspect of the universality of radar active sub-matrix index test.

As shown in fig. 1, a multi-dimensional multi-channel switch matrix system includes a 64-way switch matrix system control system, a power supply module, a switch matrix frame and an upper computer, wherein the control system and the 64-way switch matrix system are centrally installed in the switch matrix frame, the control system is mainly used for providing control power supply signals for the 64-way switch matrix, and the 64-way switch matrix system is composed of a multi-channel switch and a power division synthesis network. The upper computer is interconnected with the control system through the network switch, the control system responds to a control command of the upper computer, provides a driving signal for the switch matrix through a driving plate inside the control system, sends a matrix control command to the 64-path switch matrix system, switches inside switches of the switch matrix of the control system through responding to the driving control signal, and interconnects and intercommunicates among channels to form multi-path multi-dimensional interconnection. And the power supply module provides a power supply for the whole multi-dimensional multi-channel switch matrix system.

The control system comprises an Ethernet module, an ARM, a drive board and a status indicator, the Ethernet module, the ARM and the drive board are sequentially connected, the ARM sends processing data of control signals and indicates status signals, and meanwhile, the switch is used for carrying out communication control on the instrument and the automatic test system. As shown in fig. 4 to 5, the switch matrix frame panel integrates various connectors such as SMA/N, including a radio frequency signal switching center, an assembly port, a high-power amplifier test port, and 64 channels of test channel interfaces, and is conveniently interconnected with a to-be-tested piece or a test fixture.

As shown in fig. 3, the 64-way switch matrix system serves as a core component of the system, and functions to connect the to-be-tested device with the data collection instrument. A64-way switch matrix system includes 64-way channels DUT1-DUT 64, as shown in FIG. 2, with one column octacentimeter connected every 8-way channel. DUT1-DUT8 is connected to column octaplexer 1, DUT9-DUT16 is connected to column octaplexer 2, DUT17-DUT24 is connected to column octaplexer 3, DUT25-DUT32 is connected to column octaplexer 4, DUT33-DUT40 is connected to column octaplexer 5, DUT41-DUT48 is connected to column octaplexer 6, DUT49-DUT56 is connected to column octaplexer 7, and DUT57-DUT64 is connected to column octaplexer 8. The eight-centimeter combines 8 inputs into 1 output and is connected with the moving end of a single-pole four-throw switch, the single-pole four-throw switch uses an SP4T switch, and the total number of the single-pole four-throw switches is 8, and the switches are represented as SP4T1-SP4T 8. Then column octant 1 connects to the moving end of SP4T1, column octant 2 connects to the moving end of SP4T2, column octant 3 connects to the moving end of SP4T3, column octant 4 connects to the moving end of SP4T4, column octant 5 connects to the moving end of SP4T5, column octant 6 connects to the moving end of SP4T6, column octant 7 connects to the moving end of SP4T7, and column octant 8 connects to the moving end of SP4T 8. The four immovable ends of the single-pole four-throw switch are sequentially connected with the input ends of the two-power divider, the four-power divider and the eight-common divider and the immovable end of the single-pole eight-throw switch SW 8B. The number of the second power divider is 4, which is expressed as two power dividers A, two power dividers B, two power dividers C and two power dividers D, the number of the fourth power dividers is 2, which is four power dividers A and four power dividers B, and the number of the horizontal eight-centimeter dividers is 1, which is eight-centimeter A. Namely, 4 immobile ends of SP4T1 are sequentially connected with a two-power division A, a four-power division A, an eight-centimeter A and SW8B-1 (one channel of SW 8B), 4 immobile ends of SP4T2 are sequentially connected with a two-power division A, a four-power division A, an eight-centimeter A and SW8B-2 (two channels of SW 8B), 4 immobile ends of SP4T3 are sequentially connected with a two-power division B, a four-power division A, an eight-power division A and SW8B-3 (three channels of SW 8B), 4 immobile ends of SP4T3 are sequentially connected with a two-power division B, a four-power division A, an eight-power division A and SW8B-4 (four channels of SW 8B), 4 immobile ends of SP4T8 are sequentially connected with a two-power division C, a four-power division B, an eight-power division A and SW8 356-5 (five channels of SW 8B), 4T 468 immobile ends of SP4T 368 are sequentially connected with a two-power division C, four-power division B, a five channels of SW 4T 468 and SW 8-468-4 and SW 8-6-4 immobile ends are sequentially connected with a, six-468 channels of SW 11 (six-6-SW 7) and six passive ends of SW8 channels of 468 channels of SW 11) are sequentially connected, the 4 immobile ends of the SP4T8 are sequentially connected with a second power divider D, a fourth power divider B, an eighth centimeter A and SW8B-8 (an eighth channel of SW 8B). The output ends of the two-power divider A-D, the four-power divider A-B and the eight-centimeter A are connected with the fixed end of the SW8A, and the movable ends of the SW8A and the SW8B are connected with a test instrument.

When the system needs 8-channel synthesis testing, the channels 1-8 of the to-be-tested device are respectively connected with a switch matrix system DUT1-DUT8, 8-channel signals are synthesized by an internal integrated 8-path synthesizer, a switch SP4T1 is set to a channel 4, the channel 4 is connected with a SW8B-1, the SW8B is a single-blade 8-position switch and is connected with a testing instrument through a SW8B, and 1-8-channel synthesis signal testing is completed. While other 8-channel synthesis tests are completed by switching SW 8B.

When the system needs 16-channel synthesis testing, the 1-8 channels and the 9-16 channels of the to-be-tested device are respectively connected with a switch matrix system DUT1-DUT8 and DUT9-DUT16, signals of the 1-8 channels and the 9-16 channels are respectively synthesized by internal integrated 8-path synthesizers 1 and 2, a switch SP4T1 is set to the channel 1, an SP4T2 is set to the channel 1, the SP4T1-1 is connected with a power divider A of the SP4T2-1 and 2, and after synthesis, the to-be-tested device is connected with a testing instrument through the SW8A, and the 1-16-channel synthesis signal testing is completed. When the system needs to complete the 16-channel synthesis testing process between 17-32, 33-48 and 49-64, the principle is the same as 3. But by different power splitting and combining paths.

When the system needs 32-channel synthesis testing, the to-be-tested part 1-8 channels, 9-16 channels, 17-24 channels and 25-32 channels are respectively connected with a switch matrix system DUT1-DUT8, DUT9-DUT16, DUT17-DUT24 and DUT25-DUT32, signals of the 1-8 channels, 9-16 channels, 17-24 channels and 25-32 channels are respectively synthesized by internal integrated 8-

path synthesizers

1,2, 3 and 4, switches SP4T1, SP4T2, SP4T3 and SP4T4 are all set to the channel 2, and the switches SP4T1-2, SP4T2-2, SP4T3-2 and SP4T4-2 are connected with a power divider A, and are connected with a testing instrument through SW8A after synthesis, so that 1-32-channel synthesis signal testing is completed.

When the system needs 64-channel synthesis test, the to-be-tested pieces 1-8 channels, 9-16 channels, 17-24 channels, 25-32 channels, 33-40 channels, 41-48 channels, 49-56 channels and 57-64 channels are respectively connected with the switch matrix system DUT1-DUT8, DUT9-DUT16, DUT17-DUT24 and DUT25-DUT32 … DUT57-64, signals of the internal integration 8-

way synthesizer

1,2, 3, 4, 5, 6, 7 and 8 channels are respectively synthesized for 1-8, 9-16, 17-24, 25-32, 33-40, 41-48, 49-56 and 57-64 channels, and the switches SP4T1, SP4T2, SP4T3, SP4T4, SP4T5, SP4T6, SP4T7 and SP4T8 are all set to the channels 3, SP4T1-3, SP4T2, SP4T 353-583, SP4T5, SP4T 373-5733 and SP4T 373-5733, SP4T3, SP 3-3, SP 3 and SP4T 3723-8 channels are all set to the channels, SP4T6-3, SP4T7-3 and SP4T8-3 are connected with the power divider A of 8, and after synthesis, the power divider A is connected with a test instrument through SW8A, and a 1-64 channel synthesis signal test is completed.

When the system needs 64-channel single-channel test, the to-be-tested pieces 1-8 channels, 9-16 channels, 17-24 channels, 25-32 channels, 33-40 channels, 41-48 channels, 49-56 channels and 57-64 channels are respectively connected with the switch matrix system DUT1-DUT8, DUT9-DUT16, DUT17-DUT24 and DUT25-DUT32 … DUTs 92-64, signals of the 1-8 channels, 9-16 channels, 17-24 channels, 25-32 channels, 33-40 channels, 41-48 channels, 49-56 channels and 57-64 channels are respectively synthesized by the internal integrated 8-

way synthesizer

1,2, 3, 4, 5, 6, 7 and 8, and the switches SP4T1, SP4T2, SP4T3, SP4T4, SP4T5, SP4T6, SP4T7 and SP4T8 are all set to the channels, SP4T1-4 channels, SP4T 464T 2-5, SP4T 3523, SP4T 584T 3623, SP4T 5734, SP4T 3-8 and SP4T 3723 and SP4T, SP4T6-4, SP4T7-4 and SP4T8-4 are connected with SW8B, when a channel between 1-8 channels needs to be tested, the SW8B is switched to pass through the SP4T1-4, a single-channel radio-frequency signal of the 1-8 channels is controlled to be opened through a subarray to complete the single signal test of any channel between 1-8 channels, and the signal of 9-64 channels is the same.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-dimensional multi-channel switch matrix system, characterized by: the system comprises a 64-path switch matrix system, a control system and an upper computer, wherein the upper computer is connected with the control system through a network switch, the control system responds to a control command sent by the upper computer and sends a matrix control command to the 64-path switch matrix system, and switches in the 64-path switch matrix system respond to the matrix control command to switch so as to realize interconnection and intercommunication among channels; the 64-path switch matrix system comprises 64 paths of channels, 8 single-pole four-throw switches, 4 two-way power dividers, 2 four-way power dividers, 9 eight-way power dividers, 2 single-pole eight-throw switches SW8A and SW8B, wherein each 8 paths of channels are connected with one eight-way power divider, the eight-way power dividers combine 8 paths of input into 1 path of output and are connected with the movable end of the single-pole four-throw switch, four immovable ends of the single-pole four-throw switch are sequentially connected with the input ends of the two-way power dividers, the four-way power dividers and the eight-way power divider and the immovable end of SW8B, the output ends of the two-way power dividers, the four-way power dividers and the eight-way power dividers are connected with the immovable end of SW8A, and the movable ends of SW8A and SW8B are used for connecting with a test instrument.

2. The multi-dimensional multi-channel switch matrix system of claim 1, wherein: the control system comprises an Ethernet module, an ARM, a drive plate and a state indicator, the Ethernet module, the ARM and the drive plate are sequentially connected, the state indicator is connected with the ARM to display the current state, and the Ethernet module is connected with an upper computer through a network switch to realize interconnection of the control system and the upper computer.

3. The multi-dimensional multi-channel switch matrix system of claim 2, wherein: when the control system sends a matrix control command, the drive plate provides a drive signal for the switch matrix, and the switch in the switch matrix switches channels by responding to the drive control signal.

4. The multi-dimensional multi-channel switch matrix system of claim 3, wherein: the drive signal controls the action of the single-pole four-throw switch and the single-pole eight-throw switch so as to control the synthesis and switching between channels.

5. The multi-dimensional multi-channel switch matrix system of claim 1 or 4, wherein: the single pole, four throw switch is SP 4T.