CN207516414U - A kind of high pressure program controlled matrix switch - Google Patents
A kind of high pressure program controlled matrix switch Download PDFInfo
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- CN207516414U CN207516414U CN201721142953.7U CN201721142953U CN207516414U CN 207516414 U CN207516414 U CN 207516414U CN 201721142953 U CN201721142953 U CN 201721142953U CN 207516414 U CN207516414 U CN 207516414U
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- communication processing
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- high pressure
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Abstract
The utility model is related to a kind of high pressure program controlled matrix switchs, including serial ports modular converter, Communication processing module, drive module, relay matrix, display module, serial ports modular converter is connected to Communication processing module and transmits switching information, display module is connected to Communication processing module display switch state, drive module is connected to Communication processing module and receives to be passed through serial ports transmitted in parallel switch motion information and receives switching-state information with the progress switch motion of latch switch status information rear-guard motor type relay matrix, host computer.The utility model employs the high-voltage relay of low-voltage driving, disclosure satisfy that switching and the testing requirement of high-voltage signal, employs modular design, has good expansion, and the quick positioning of module channels failure can be realized by comparing feedack.
Description
Technical field
Module is switched fast the utility model is related to a kind of multichannel high-voltage isulation signal, specifically a kind of high pressure
Program controlled matrix switch.
Background technology
At present in test equipment for the matrix switch of signal switching primarily directed to low pressure and weak signal, it is main to use
Simulant electronic switch or miniature relay realize the control to switch module, Ke Yi using the backplane bus such as PCI, PXI interface
The limited signal switching for spatially realizing high speed, multichannel.But for the test equipment of high-voltage signal, especially to production
When product carry out Insulation test, common matrix development module can not just meet the testing requirement of equipment, so needing research and design
Go out a kind of switch module for meeting high pressure switching.
As the matrix switch of high pressure switching, having except the program-controlled feature of common matrix switch, the module is necessary
Meet high pressure requirement, there is high reliability in control mode, while also to realize the monitoring of on off state.Therefore emphasis is wanted
Solve the problems, such as the following aspects：
1) switch need to use small, low voltage control high-voltage relay, meet 500V high-voltage isulation testing requirements；
2) reliability of communication is ensured by the even-odd check of frame format using serial communication in control mode；
3) monitoring of on off state by the transmission of hardware handles status signal, is compared and is retransmited, it is ensured that on off state
Monitoring and correct；
4) it solves the problems, such as that facilitating for high-pressure matrix switch is expansible, the test need of different number high-pressure channel can be met
It asks.
Invention content
The technical problem to be solved by the utility model is to propose a kind of high pressure program controlled matrix switch, realize to high pressure journey
Control control and the status display of matrix switch.
Technical problem to be solved in the utility model is realized using following technical scheme：
A kind of high pressure program controlled matrix switch, including serial ports modular converter, Communication processing module, drive module, relay square
Battle array, display module, the serial ports modular converter are connected to the Communication processing module and transmit switching information, and the display module connects
The Communication processing module display switch state is connected to, the drive module is connected to the Communication processing module and receives and latch
The relay matrix is driven after switching-state information.
The serial ports modular converter is used RS232 serial communications with host computer, is adopted between module using unified standard interface
Use parallel data transmission.
The Communication processing module includes the first programmable logic device and the second programmable logic device, and described first can
Programmed logic device and the second programmable logic device model EPM7128, first programmable logic device include with
Host computer communication serial port circuit, second programmable logic device include relay switch decoded signal generation circuit and
State output signal comparison monitoring circuit.
The relay matrix includes m high-voltage relay, and Pickering119-1-A-12/1D type relays can be used
Hi-pot test verification is carried out, wherein m is positive integer.
The beneficial effects of the utility model are：The utility model meets switching and the testing requirement of high-voltage signal, passes through
On off state monitors, and can realize the quick positioning of module channels failure.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the module connection figure of the utility model；
Fig. 2 is the signal flow graph of the utility model.
Specific embodiment
In order to be easy to understand technical means, creative features, achievable purpose and effectiveness of the utility model, under
It is expanded on further in face of the utility model.
Module connection figure as shown in Figure 1：
A kind of high pressure program controlled matrix switch, including serial ports modular converter 1, Communication processing module 2, drive module 3, relay
Matrix 4, display module 5, the serial ports modular converter 1 are connected to the Communication processing module 2 and transmit switching information, the display
Module 5 is connected to the 2 display switch state of Communication processing module, and the drive module 3 is connected to the Communication processing module 2
It receives with driving the relay matrix 4 after latch switch status information.
The serial ports modular converter 1 for convert 232 level, by 232 level conversions for Transistor-Transistor Logic level for Communication processing mould
Block is handled.
The signal processing circuit of the Communication processing module 2 includes two panels programmable logic device EPM7128 devices, wherein
First programmable logic device 21 is used to receive and handle the communication information of host computer and sends status information, and another second can
Programmed logic device 22 is used to decoding and latching the switching-state information received, and second programmable logic device 22 connects
The drive module 3, transmit decoding after switching-state information, the drive module 3 drive signal can be amplified and
Isolation safely and reliably drives high-voltage relay to carry out switch motion, while the switching-state information after action is fed back to the
Two programmable logic chips 22 obtain the actual switch state of relay after decoding, can be real-time by the display module 5
Ground shows the state of each relay.Meanwhile real-time status data sends to by the second programmable logic device 22
It is latched after one programmable logic device 21, host computer is sent feedback to by RS232 serial ports, host computer sends and connects by comparing
The switching-state information of receipts just can rapidly and accurately exclude relay failure, it is ensured that switch motion is reliable.
Signal flow graph as shown in Figure 2, the switch motion information from host computer by RS232 serial ports transmitted in parallel,
The parallel data received from serial ports is latched for use, obtained switch motion information is then subjected to state decoding output, is led to
Module drive of overdriving relay matrix and by display module display switch state, the switching-state information fed back is advanced
Row status data latches, and is then sent to host computer by serial ports and is analyzed and determined.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model also has
Various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model
Protection domain is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of high pressure program controlled matrix switch, it is characterised in that：Including serial ports modular converter (1), Communication processing module (2), drive
Dynamic model block (3), relay matrix (4), display module (5), the serial ports modular converter (1) are connected to the Communication processing module
(2) switching information is transmitted, the display module (5) is connected to Communication processing module (2) the display switch state, the driving
Module (3) is connected to the Communication processing module (2) and receives with driving the relay matrix after latch switch status information
(4)。
2. a kind of high pressure program controlled matrix switch according to claim 1, it is characterised in that：The Communication processing module (2)
Including the first programmable logic device (21) and the second programmable logic device (22), first programmable logic device (21)
With the second programmable logic device (22) model EPM7128.
3. a kind of high pressure program controlled matrix switch according to claim 2, it is characterised in that：First programmable logic device
Part (21) includes the serial port circuit that is communicated with host computer, and second programmable logic device (22) is translated including relay switch
Code signal generation circuit and state output signal comparison monitoring circuit.
4. a kind of high pressure program controlled matrix switch according to claim 1, it is characterised in that：The serial ports modular converter (1)
Including carrying out 232 serial port level chance-over circuits.
5. a kind of high pressure program controlled matrix switch according to claim 1, it is characterised in that：Relay matrix (4) packet
The high-voltage relay of m low-voltage driving, model Pickering119-1-A-12/1D type relays are included, wherein m is just whole
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721142953.7U CN207516414U (en) | 2017-09-07 | 2017-09-07 | A kind of high pressure program controlled matrix switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721142953.7U CN207516414U (en) | 2017-09-07 | 2017-09-07 | A kind of high pressure program controlled matrix switch |
Publications (1)
| Publication Number | Publication Date |
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| CN207516414U true CN207516414U (en) | 2018-06-19 |
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| CN201721142953.7U Active CN207516414U (en) | 2017-09-07 | 2017-09-07 | A kind of high pressure program controlled matrix switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505486A (en) * | 2017-09-07 | 2017-12-22 | 国营芜湖机械厂 | A kind of high pressure program controlled matrix switch |
-
2017
- 2017-09-07 CN CN201721142953.7U patent/CN207516414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505486A (en) * | 2017-09-07 | 2017-12-22 | 国营芜湖机械厂 | A kind of high pressure program controlled matrix switch |
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