CN208125855U - A kind of multichannel short-circuit detecting device and system - Google Patents
A kind of multichannel short-circuit detecting device and system Download PDFInfo
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- CN208125855U CN208125855U CN201820569160.1U CN201820569160U CN208125855U CN 208125855 U CN208125855 U CN 208125855U CN 201820569160 U CN201820569160 U CN 201820569160U CN 208125855 U CN208125855 U CN 208125855U
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Abstract
The utility model relates to detection technique fields, specifically disclose a kind of multichannel short-circuit detecting device, wherein including：Control module, drive module and communication module, control module are connect with drive module and communication module respectively, and drive module can be connect with TCH test channel；The transmission pulse signal of generation can be sent to TCH test channel by control module, and can receive multiple reception test pulse signals, and can will be sent pulse signal and be compared with multiple reception test pulse signals, and test result is obtained；Drive module can be connect with every paths signal in TCH test channel, and control can be sent the transmission of pulse signal under the control for the enable signal that control module generates and be controlled and received the reception of test pulse signal；Test result can be sent to host computer by communication module.The invention also discloses a kind of multichannel short circuit detecting systems.The advantage that multichannel short-circuit detecting device provided by the utility model has detection efficiency at low cost high.
Description
Technical field
It is short the utility model relates to detection technique field more particularly to a kind of multichannel short-circuit detecting device and including the multichannel
The multichannel short circuit detecting system of road detection device.
Background technique
It is whether short-circuit between multiple signals in radar control plate in order to test in radar control technical field, existing skill
It is usually to use to think manual test in art, this mode is although at low cost but efficiency is also low, and in addition there are also one is use
Automatization test system, the heavy workload of this automatization test system research and development, development cost are high.
Therefore, the multichannel short-circuit detecting mode for how providing a kind of low-cost high-efficiency becomes those skilled in the art urgently
The technical issues of solution.
Summary of the invention
The utility model aims to solve at least one of the technical problems existing in the prior art, provides a kind of multichannel short circuit inspection
Device and the multichannel short circuit detecting system including the multichannel short-circuit detecting device are surveyed, to solve the problems of the prior art.
As the first aspect of the utility model, a kind of multichannel short-circuit detecting device is provided, wherein the multichannel short circuit
Detection device includes：Control module, drive module and communication module, the control module respectively with the drive module and described
Communication module connection, the drive module can be connect with TCH test channel, wherein the TCH test channel includes multiplexer channel letter
Number；
The transmission pulse signal of generation can be successively sent to the survey by the drive module by the control module
It pings, and the multiple reception test pulse signals fed back by the drive module can be received, and can be by the hair
It send pulse signal to be compared with multiple reception test pulse signals, obtains test result, wherein each reception is surveyed
Try the corresponding channel signal all the way of pulse signal；
The drive module can be connect with every paths signal in the TCH test channel, and can be in the control mould
The transmission for sending pulse signal and the control reception test pulse letter are controlled under the control for the enable signal that block generates
Number reception；
The test result can be sent to host computer and shown by the communication module.
Preferably, it is described send pulse signal pulsewidth be 100 μ s, period 10ms.
Preferably, when the control module carries out the transmission pulse signal and multiple reception test pulse signals
When comparison, if the transmission pulse signal is identical as reception test pulse signal described in one of them, the test result is
It is short-circuit between the corresponding channel signal of the reception test pulse signal channel signal corresponding with the transmission pulse signal.
Preferably, the control module includes FPGA or single-chip microcontroller.
Preferably, the FPGA includes the chip of model XC6SLX45T.
Preferably, the drive module includes the driving chip of model SN74LVC8T245.
Preferably, the communication module includes RS422 communication module.
Preferably, the RS422 communication module includes the communication chip of model MAX422.
Preferably, the TCH test channel includes 26 paths signals.
As the second aspect of the utility model, a kind of multichannel short circuit detecting system is provided, wherein the multichannel short circuit
Detection system includes host computer and previously described multichannel short-circuit detecting device, and the host computer and the multichannel short-circuit detecting fill
Communication module connection in setting, the host computer can show the test result that the communication module is sent.
Multichannel short-circuit detecting device provided by the utility model is generated by control module and sends pulse signal, then will
The transmission pulse signal passes sequentially through drive module and is sent in the multiplexer channel signal of TCH test channel, then according to drive module
The reception test pulse signal and transmission pulse signal of feedback compare to obtain comparing result, available more according to the comparing result
Short out road testing result, multichannel short-circuit detecting device structure provided by the utility model is simple, low in cost, and testing efficiency is high
And test accuracy is high.
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of multichannel short-circuit detecting device provided by the utility model.
Fig. 2 is the specific embodiment structural schematic diagram of multichannel short-circuit detecting device provided by the utility model.
Fig. 3 is 26 tunnel short-circuit detecting display interface provided by the utility model.
Fig. 4 is the structural schematic diagram of multichannel short circuit detecting system provided by the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
As the first aspect of the utility model, a kind of multichannel short-circuit detecting device is provided, wherein as shown in Figure 1, institute
Stating multichannel short-circuit detecting device 10 includes：Control module 110, drive module 120 and communication module 130, the control module 110
It is connect respectively with the drive module 120 and the communication module 130, the drive module 120 can connect with TCH test channel 140
It connects, wherein the TCH test channel includes multiplexer channel signal；
The transmission pulse signal of generation can be successively sent to by the control module 110 by the drive module 120
The TCH test channel 140, and the multiple reception test pulse signals fed back by the drive module 120 can be received, and
The transmission pulse signal can be compared with multiple reception test pulse signals, test result be obtained, wherein often
A corresponding channel signal all the way of the reception test pulse signal；
The drive module 120 can be connect with every paths signal in the TCH test channel 140, and can be described
The transmission for sending pulse signal is controlled under the control for the enable signal that control module 110 generates and the control reception is surveyed
Try the reception of pulse signal；
The test result can be sent to host computer and shown by the communication module 130.
Multichannel short-circuit detecting device provided by the utility model is generated by control module and sends pulse signal, then will
The transmission pulse signal passes sequentially through drive module and is sent in the multiplexer channel signal of TCH test channel, then according to drive module
The reception test pulse signal and transmission pulse signal of feedback compare to obtain comparing result, available more according to the comparing result
Short out road testing result, multichannel short-circuit detecting device structure provided by the utility model is simple, low in cost, and testing efficiency is high
And test accuracy is high.
Specifically, it is described send pulse signal pulsewidth be 100 μ s, period 10ms.
Specifically, when the control module 110 is by the transmission pulse signal and multiple reception test pulse signals
When being compared, if the transmission pulse signal is identical as reception test pulse signal described in one of them, the test knot
Fruit is short-circuit between the corresponding channel signal of the reception test pulse signal channel signal corresponding with the transmission pulse signal.
As the specific embodiment of the control module 110, the control module 110 includes FPGA or single-chip microcontroller.
Preferably, the FPGA includes the chip of model XC6SLX45T.
As the specific embodiment of the drive module 120, the drive module 120 includes model
The driving chip of SN74LVC8T245.
As the specific embodiment of the communication module 130, the communication module 130 includes RS422 communication module.
Preferably, the RS422 communication module includes the communication chip of model MAX422.
Preferably, the TCH test channel 140 includes 26 paths signals.
Below with reference to shown in Fig. 2, the course of work of multichannel short-circuit detecting device provided by the utility model is carried out detailed
Explanation.
FPGA generates the transmission pulse signal that pulsewidth is 100 μ s, period 10ms, and will send pulse signal and receive test
Pulse signal is compared, and completes the short-circuit detecting of TCH test channel 140.FPGA can also generate control drive module 120 and send
Signal or received enable signal；And it can be sent to host computer 150 by result by RS422 communication module and be shown.
Specifically, it by taking TCH test channel 140 includes 26 paths signals as an example, when testing first channel, is produced by FPGA
Raw test pulse, by the enabled output as drive module 120, remaining 25 tunnel is set to input by enable signal, and FPGA pairs
The received test signal in 25 tunnels is detected, and such as detects that pulse test signal is identical, that is, is judged first via TCH test channel and be somebody's turn to do
Receive TCH test channel short circuit；By the above process, successively remaining 25 TCH test channel is tested, test result passes through RS422
Communication module is sent to host computer 150 and is shown.
It should be noted that the host computer 150 for test result shown when, if the channel signal detected
Normally, then corresponding channel display is green, if the channel detected has short circuit, the channel of short circuit shows green.Such as Fig. 3 institute
Show, is 26 tunnel short-circuit detecting display interfaces.
As the second aspect of the utility model, a kind of multichannel short circuit detecting system is provided, wherein as shown in figure 4, institute
Stating multichannel short circuit detecting system 1 includes host computer 140 and previously described multichannel short-circuit detecting device 10, the host computer 140
It is connect with the communication module in the multichannel short-circuit detecting device 10, the host computer 140 can show the communication module hair
The test result sent.
Multichannel short circuit detecting system provided by the utility model is generated by control module and sends pulse signal, then will
The transmission pulse signal passes sequentially through drive module and is sent in the multiplexer channel signal of TCH test channel, then according to drive module
The reception test pulse signal and transmission pulse signal of feedback compare to obtain comparing result, available more according to the comparing result
Short out road testing result, multichannel short circuit detecting system structure provided by the utility model is simple, low in cost, and testing efficiency is high
And test accuracy is high.
It is understood that embodiment of above is merely to illustrate that the principles of the present invention and uses exemplary
Embodiment, however the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case where the spirit and essence of utility model, various changes and modifications can be made therein, these variations and modifications are also considered as this reality
With novel protection scope.
Claims (10)
1. a kind of multichannel short-circuit detecting device, which is characterized in that the multichannel short-circuit detecting device includes：Control module, driving
Module and communication module, the control module are connect with the drive module and the communication module respectively, the drive module
It can be connect with TCH test channel, wherein the TCH test channel includes multiplexer channel signal；
It is logical that the transmission pulse signal of generation can be successively sent to the test by the drive module by the control module
Road, and the multiple reception test pulse signals fed back by the drive module can be received, and can be by the transmission arteries and veins
It rushes signal to be compared with multiple reception test pulse signals, obtains test result, wherein arteries and veins is tested in each reception
Rush the corresponding channel signal all the way of signal；
The drive module can be connect with every paths signal in the TCH test channel, and can be produced in the control module
The transmission for sending pulse signal is controlled under the control of raw enable signal and controls the reception test pulse signal
It receives；
The test result can be sent to host computer and shown by the communication module.
2. multichannel short-circuit detecting device according to claim 1, which is characterized in that it is described send pulse signal pulsewidth be
100 μ s, period 10ms.
3. multichannel short-circuit detecting device according to claim 1, which is characterized in that when the control module is by the transmission
When pulse signal is compared with multiple reception test pulse signals, if the transmission pulse signal and one of them described in
It is identical to receive test pulse signal, then the test result is the corresponding channel signal of reception test pulse signal and the hair
It send short-circuit between the corresponding channel signal of pulse signal.
4. multichannel short-circuit detecting device according to claim 1, which is characterized in that the control module includes FPGA or list
Piece machine.
5. multichannel short-circuit detecting device according to claim 4, which is characterized in that the FPGA includes model
The chip of XC6SLX45T.
6. multichannel short-circuit detecting device according to claim 1, which is characterized in that the drive module includes model
The driving chip of SN74LVC8T245.
7. multichannel short-circuit detecting device according to claim 1, which is characterized in that the communication module includes RS422 logical
Believe module.
8. multichannel short-circuit detecting device according to claim 7, which is characterized in that the RS422 communication module includes type
Number be MAX422 communication chip.
9. multichannel short-circuit detecting device as claimed in any of claims 1 to 8, which is characterized in that the test is logical
Road includes 26 paths signals.
10. a kind of multichannel short circuit detecting system, which is characterized in that the multichannel short circuit detecting system includes that host computer and right are wanted
It is logical in multichannel short-circuit detecting device described in asking any one of 1 to 9, the host computer and the multichannel short-circuit detecting device
Believe module connection, the host computer can show the test result that the communication module is sent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820569160.1U CN208125855U (en) | 2018-04-20 | 2018-04-20 | A kind of multichannel short-circuit detecting device and system |
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| CN201820569160.1U CN208125855U (en) | 2018-04-20 | 2018-04-20 | A kind of multichannel short-circuit detecting device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305449A (en) * | 2019-07-24 | 2021-02-02 | 苏州清越光电科技股份有限公司 | Light-emitting element defect detection jig and screen short circuit detection method |
| CN114152895A (en) * | 2021-11-10 | 2022-03-08 | 深圳市德明利技术股份有限公司 | Capacitive screen mutual capacitance short circuit testing method and device and computer readable storage medium |
-
2018
- 2018-04-20 CN CN201820569160.1U patent/CN208125855U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305449A (en) * | 2019-07-24 | 2021-02-02 | 苏州清越光电科技股份有限公司 | Light-emitting element defect detection jig and screen short circuit detection method |
| CN114152895A (en) * | 2021-11-10 | 2022-03-08 | 深圳市德明利技术股份有限公司 | Capacitive screen mutual capacitance short circuit testing method and device and computer readable storage medium |
| CN114152895B (en) * | 2021-11-10 | 2023-11-17 | 深圳市德明利技术股份有限公司 | Capacitive screen mutual capacitance short circuit test method and test device |
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