CN202649363U - Network port detection device - Google Patents
Network port detection device Download PDFInfo
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- CN202649363U CN202649363U CN 201120532617 CN201120532617U CN202649363U CN 202649363 U CN202649363 U CN 202649363U CN 201120532617 CN201120532617 CN 201120532617 CN 201120532617 U CN201120532617 U CN 201120532617U CN 202649363 U CN202649363 U CN 202649363U
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Abstract
The utility model relates to a network port detection device which comprises a controller, a first signal processing unit and a second signal processing unit. The controller comprises a signal generating unit and a detection unit. An output terminal of the signal generating unit is connected with an input terminal of the first signal processing unit. An output terminal of the first signal processing unit is externally connected with an input terminal of a network port to be detected. An input terminal of the second signal processing unit is externally connected with an output terminal of the network port to be detected, and an output terminal of the second signal processing unit is connected with an input terminal of the detection unit. By employing the structure of the utility model, only testing an Ethernet port is needed, and using a whole application circuit of an Ethernet is not needed; a test can be completed independently, using an external PC machine is not needed, a testing flow can be greatly simplified, testing efficiency is raised, and the improvement of the product capacity of a product with an Ethernet interface module is facilitated.
Description
Technical field
The utility model relates to a kind of network interface pick-up unit, is particularly useful for detecting the Ethernet interface with isolating transformer, belongs to data communication technology field.
Background technology
Understand according to the applicant, in present Ethernet interface detects, often need whole application circuits of Ethernet are used in pick-up unit, recycle a PC and carry out the network ping testing, whole proving installation is complicated, and test process is consuming time longer, and testing efficiency is low, is unfavorable for improving the production capacity with the product of Ethernet interface module.
The utility model content
The purpose of this utility model is: for the problem of above-mentioned prior art existence, a kind of network interface pick-up unit ingenious, simple in structure that designs is proposed, can significantly simplify testing process, improve testing efficiency, be conducive to improve the production capacity with the product of Ethernet interface module.
In order to reach above purpose, the technical solution of the utility model is as follows:
A kind of network interface pick-up unit, comprise controller, first signal processing unit and secondary signal processing unit, it is characterized in that, described controller has signal generating unit and detecting unit, the input end of the output termination first signal processing unit of described signal generating unit, the input end of the external network interface to be measured of output terminal of described first signal processing unit; The output terminal of the external network interface to be measured of input end of described secondary signal processing unit, the input end of the output termination detecting unit of described secondary signal processing unit.
During operation, signal generating unit by controller sends signal, this signal by network interface to be measured, enters the detecting unit of controller again, thereby judges whether network interface to be measured exists short circuit, open circuit problem after the first signal processing unit processes after the secondary signal processing unit processes.
The utility model further perfect technical scheme is as follows:
1. the signal generating unit of described controller is pulse-width modulator.
2. described controller also has analog to digital converter, and the output terminal of described secondary signal processing unit connects the input end of detecting unit through analog to digital converter.
3. described controller is LPC2136.
4. described first signal processing unit comprises CPLD and push-pull drive loop, the input end of described CPLD overlaps with the input end of first signal processing unit, the input end in the output termination push-pull drive loop of described CPLD, the output terminal in described push-pull drive loop overlaps with the output terminal of first signal processing unit.
5. described CPLD is EPM3032.
6. described push-pull drive loop is triode push-pull drive loop.
7. described secondary signal processing unit is the filter rectification integrating network.
After adopting structure of the present utility model, only need test Ethernet interface itself, do not need to use whole application circuits of Ethernet; Can test by complete independently, do not need to utilize outer PC, can significantly simplify testing process, improve testing efficiency, be conducive to improve the production capacity with the product of Ethernet interface module.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the schematic diagram in triode push-pull drive loop among Fig. 1 embodiment.
Fig. 3 is the schematic diagram of filter rectification integrating network among Fig. 1 embodiment.
Embodiment
Embodiment
The network interface pick-up unit basic structure of the present embodiment as Figure 1-3, comprise controller 1, first signal processing unit 2 and secondary signal processing unit 3, controller 1 has signal generating unit 11 and detecting unit 12, the input end of the output termination first signal processing unit 4 of signal generating unit 11, the input end of the external network interface 5 to be measured of the output terminal of first signal processing unit 4; The output terminal of the external network interface 5 to be measured of the input end of secondary signal processing unit 6, the input end of the output termination detecting unit 12 of secondary signal processing unit 6.
The signal generating unit 11 of controller 1 is pulse-width modulator (PWM).Controller 1 also has analog to digital converter (ADC), and the output terminal of secondary signal processing unit 6 connects the input end of detecting unit 12 through analog to digital converter (ADC).Controller 1 is LPC2136.
First signal processing unit 4 comprises CPLD and push-pull drive loop 41, the input end of CPLD overlaps with the input end of first signal processing unit 4, the input end in the output termination push-pull drive loop 41 of CPLD, the output terminal in push-pull drive loop 41 overlaps with the output terminal of first signal processing unit 4.CPLD is EPM3032.Push-pull drive loop 41 is triode push-pull drive loop.
Secondary signal processing unit 6 is the filter rectification integrating network.
Principle of work is as follows:
At first, LPC2136 produces 1 100kHz square-wave signal by internal processes at PWM, and this signal resolves into two pairs of symmetrical signals that drive after by EPM3032 respectively as the input of triode push-pull driver circuit; Under the driving circuit effect, so that the same time only has one road detection signal to pass through at band isolating transformer Ethernet interface, and carry out 10 bit AD samples at rear end filtering, rectification, integration by inputing to MCU; Sampling generation the 1 tunnel main signal value, the 2 tunnel auxiliary signal value, the 2 tunnel main signal value, the 1 tunnel auxiliary signal value are sent these results into detecting unit again and the accurate threshold values of interior bidding compares, and can judge network interface to be measured and whether have short circuit open circuit problem.
The present embodiment device is integrated all external logics take the PHI LIPS ARM7 of company core LPC2136 as detecting core by EPM3032, utilizes the PWM output of LPC2136 and push-pull drive loop to generate the test AC signal; Simultaneously, cooperate the filter rectification integrating networks to come to decay and the isolation sampling analysis with the signal of the Ethernet interface of isolating transformer to having passed through with 10 AD of LPC2136 inside, judge test result by software at last.
The present embodiment device can significantly be simplified testing process environment and test fixture circuit, has reduced equipment investment from the production angle, and the specific aim test improves production production capacity and the enterprise core competence that uses with the module product of isolating transformer Ethernet interface.Experiment shows, compares with conventional test methodologies, and the amount detection of single station every day has improved 400%, also can be with the cost cutting of testing procedure to original 20%.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (8)
1. network interface pick-up unit, comprise controller, first signal processing unit and secondary signal processing unit, it is characterized in that, described controller has signal generating unit and detecting unit, the input end of the output termination first signal processing unit of described signal generating unit, the input end of the external network interface to be measured of output terminal of described first signal processing unit; The output terminal of the external network interface to be measured of input end of described secondary signal processing unit, the input end of the output termination detecting unit of described secondary signal processing unit.
2. network interface pick-up unit according to claim 1 is characterized in that, the signal generating unit of described controller is pulse-width modulator.
3. network interface pick-up unit according to claim 2 is characterized in that, described controller also has analog to digital converter, and the output terminal of described secondary signal processing unit connects the input end of detecting unit through analog to digital converter.
4. according to claim 1 and 2 or 3 described network interface pick-up units, it is characterized in that, described controller is LPC2136.
5. according to claim 1 and 2 or 3 described network interface pick-up units, it is characterized in that, described first signal processing unit comprises CPLD and push-pull drive loop, the input end of described CPLD overlaps with the input end of first signal processing unit, the input end in the output termination push-pull drive loop of described CPLD, the output terminal in described push-pull drive loop overlaps with the output terminal of first signal processing unit.
6. network interface pick-up unit according to claim 5 is characterized in that, described CPLD is EPM3032.
7. network interface pick-up unit according to claim 6 is characterized in that, described push-pull drive loop is triode push-pull drive loop.
8. according to claim 1 and 2 or 3 described network interface pick-up units, it is characterized in that, described secondary signal processing unit is the filter rectification integrating network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120532617 CN202649363U (en) | 2011-12-19 | 2011-12-19 | Network port detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120532617 CN202649363U (en) | 2011-12-19 | 2011-12-19 | Network port detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202649363U true CN202649363U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120532617 Expired - Fee Related CN202649363U (en) | 2011-12-19 | 2011-12-19 | Network port detection device |
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| Country | Link |
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| CN (1) | CN202649363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184759A1 (en) * | 2014-06-04 | 2015-12-10 | 中国科学院声学研究所 | Apparatus and method for state detection and fault tolerance of service network port |
| CN105182155A (en) * | 2015-08-30 | 2015-12-23 | 成都千里电子设备有限公司 | Electrode detection circuit used for electrode sheet |
-
2011
- 2011-12-19 CN CN 201120532617 patent/CN202649363U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015184759A1 (en) * | 2014-06-04 | 2015-12-10 | 中国科学院声学研究所 | Apparatus and method for state detection and fault tolerance of service network port |
| CN105281929A (en) * | 2014-06-04 | 2016-01-27 | 中国科学院声学研究所 | Service network port state detection and fault tolerance device and method thereof |
| CN105281929B (en) * | 2014-06-04 | 2018-10-02 | 中国科学院声学研究所 | A kind of service network interface state-detection and fault-tolerant devices and methods therefor |
| CN105182155A (en) * | 2015-08-30 | 2015-12-23 | 成都千里电子设备有限公司 | Electrode detection circuit used for electrode sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20181219 |