CN1959424A - General type test instrument for communication ports - Google Patents
General type test instrument for communication ports Download PDFInfo
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- CN1959424A CN1959424A CN 200610122264 CN200610122264A CN1959424A CN 1959424 A CN1959424 A CN 1959424A CN 200610122264 CN200610122264 CN 200610122264 CN 200610122264 A CN200610122264 A CN 200610122264A CN 1959424 A CN1959424 A CN 1959424A
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Abstract
A testing instrument of universal communication interface is prepared as setting power supply conversion circuit and test circuit on test circuit board, applying expansible modulated circuit component as test circuit, erecting multiple test software on portable computer, providing voltage-converted power supply to test circuit and using it as operation power supply by test circuit after power supply of portable computer is voltage-converted by power supply conversion circuit.
Description
Technical field
The present invention relates to a kind of general type test instrument for communication ports.
Background technology
The various intelligent equipments that move in a distributed system transmit, receive data by its communication port.But if certain link of equipment interface or communication path has had fault, this transmission just can't be carried out.Because communication path relates to a lot of links, be difficult to the failure judgement point especially at the scene, often occasion a delay for handling failure.The present invention is designed to a novel all purpose instrument with micro-computer technology and mechanics of communication, can address this problem easily with this instrument.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of intelligent general type test instrument for communication ports of easy to carry, highly versatile is provided.
The technical solution adopted in the present invention is: the present invention includes palm PC and testing circuit board, described testing circuit board is provided with power-switching circuit and test circuit, the input end of described power-switching circuit is connected with power supply in the described palm PC, output terminal is connected with described test circuit, described test circuit is the open-ended modularity circuit unit, described test circuit is electrically connected with tested communication port, and the Test Application software of multiple stipulations and intelligent analysis is installed in the described palm PC.
Described test circuit comprises RS232/TTL change-over circuit, CS electric current loop test circuit, RS485 test circuit.
Described palm PC is suitable palmtop computer or the computer platform of being made up of ARM kernel that possesses the computer feature and operating system; Described test circuit and described power-switching circuit can be mounted on the PCB circuit board and be packaged in the housing and patch combination with described palm PC brick pattern again, also can be the instrument and equipments that directly is assembled into as a wholeization with described palm PC.
The invention has the beneficial effects as follows: owing to the present invention includes palm PC and testing circuit board, described testing circuit board is provided with power-switching circuit and test circuit, described test circuit is the assembly of open-ended modularity, test circuit can be by the corresponding interface and different tested communication port electrical connections, power-switching circuit can be supported the particular requirement of distinct interface to power supply, multiple stipulations Test Application software is installed in the described palm PC, find the attribute of communication interface by the automatic detection analysis of scan-type, adopt corresponding communication protocol to operate corresponding testing software then, can make things convenient for, measure quickly the communication port of surveying whether normal, test result can be with screen display, aural information provides, and also can generate the test report that can file automatically to be checked in the future.Because described test circuit is the open-ended modularity circuit unit, but can change modular assembly by pluggable mode at any time, also can expand new interface module assembly at different tested objects.
Therefore the present invention is a kind of multiple communication interface, many communication protocol of can be used for, and the intelligent portable instrument of automatic test analysis, has practicality, convenient, general, extendible advantage.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the circuit diagram of the specific embodiment of the invention.
Embodiment
As shown in Figure 1, the present invention includes palm PC 1 and testing circuit board 2, described testing circuit board 2 is provided with power-switching circuit 5 and test circuit, described palm PC 1 is the suitable palmtop computer with infrared communication function, or possesses the ARM kernel of computer feature and the computer platform of operating system; Described test circuit is the open-ended modularity circuit unit, and described test circuit and described power-switching circuit 5 are installed on the PCB circuit board and are packaged in the housing and patch combination with described palm PC 1 brick pattern again.Multiple stipulations Test Application software is installed in the described palm PC 1.
Certainly, described testing circuit board 2 also can directly be assembled into as a whole instrument and equipment with described palm PC 1.
Fig. 2 is a kind of circuit diagram of implementing example of the present invention, and the input end of described power-switching circuit 5 is connected with power supply in the described palm PC 1, and the output terminal of described power-switching circuit 5 is connected with described test circuit; Described test circuit comprises RS232/TTL change-over circuit 3, CS electric current loop test circuit 4, RS485 test circuit 6.
Described power-switching circuit 5 is that the power supply in the described palm PC 1 is carried out offering described test circuit as working power after the voltage transitions, in order to support the specific (special) requirements of different tested interfaces to power supply.Described RS232TTL change-over circuit 3 adopts MAX232A chip and circuit, described CS electric current loop test circuit 4 adopts three S9014 transistors and two PC817 photovalves to form CS electric current loop test circuit, described power-switching circuit 5 adopts NCPI403 chip and a crystal diode to form power-switching circuit, and described RS485 test circuit 6 adopts MAX489 chip and circuit.Certainly, physical circuit is not limited only to this type of components and parts type selecting.In CS electric current loop test circuit 4, by adjusting divider resistance R19, R20 and current-limiting resistance R5, the quiescent current control that can make the CS electric current loop is at 14-18mA.
Test circuit of the present invention is the assembly of open-ended modularity, but can change modular assembly by pluggable mode at any time at different tested objects, also can expand new interface module assembly, for example increase interface and test circuit at M-BUS, low-consumption wireless electricity etc.
At present, the communication protocol that comprises in the software design of the present invention: IEC61107, IEC870-5-102, DL/T645, DLMS, Modbus, EDMI, wasion, ABB communication protocol etc.The communication port test operation needs circuit module selected earlier and that the tested device communication port is complementary, selects the communication protocol and the baud rate that are complementary by the actions menu interface of Test Application software again, begins to test by " determining " key at last on menu.Whether normally the present invention is an attribute of finding communication interface by the automatic detection analysis of scan-type, adopts corresponding communication protocol to operate corresponding testing software then, and test process only needs several seconds, can make communication conclusion to the communication port of tested equipment.Test result provides with screen display, aural information on palm PC 1.If communication port is normal, can demonstrate numbering, date, the time of equipment, the device talk address, the test report that simultaneously automatic generation can be filed is to be checked in the future.
Implementing test job is to operate by described palm PC 1 or by the menu interface of the application software of installing in the nuclear equipment in the ARM that possesses the computer feature.On the operating system platform of palm PC, according to communication protocol (agreement) the establishment testing software of different equipment under tests.These communication protocols are a kind of standards generally speaking, or the self-defining company standard of equipment producer.Up to the present the communication protocol that has possessed in the application software has:
IEC61107-1996Data exchange for metering reading, tariff andload control-Direct local data exchange " the direct local data exchange standard of the control of checking meter, charge and load "
IEC870-5-102 " electric system electric energy cumulative amount transmission planning standard "
DL/T645-1997 multifunctional electric energy meter communication standard " multifunctional electric energy meter communication protocol "
DLMS " electric energy metrical-be used to is checked meter, the exchanges data of rate and load control "
Modbus communication protocol
EDMI corporate communication stipulations
Wasion's corporate communication stipulations
ABB AB's communication protocol
Implementing test automatically is that communication port is carried out many stipulations scannings, analyzes stipulations, baud rate, device talk address then, has realized the intelligent functions of automatic detection communication interface.
Claims (3)
1, a kind of general type test instrument for communication ports, it is characterized in that: it comprises palm PC (1) and testing circuit board (2), described testing circuit board (2) is provided with power-switching circuit (5) and test circuit, the input end of described power-switching circuit (5) is connected with power supply in the described palm PC (1), output terminal is connected with described test circuit, described test circuit is the open-ended modularity circuit unit, described test circuit is electrically connected with tested communication port, and the Test Application software of multiple stipulations and intelligent analysis is installed in the described palm PC (1).
2, general type test instrument for communication ports according to claim 1 is characterized in that: described test circuit comprises RS232/TTL change-over circuit (3), CS electric current loop test circuit (4), RS485 test circuit (6).
3, general type test instrument for communication ports according to claim 1 and 2 is characterized in that: described palm PC (1) is suitable palmtop computer or the computer platform of being made up of ARM kernel that possesses the computer feature and operating system; Described test circuit and described power-switching circuit (5) can be mounted on the PCB circuit board and be packaged in the housing and patch combination with described palm PC (1) brick pattern again, also can be the instrument and equipments that directly is assembled into as a wholeization with described palm PC (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610122264 CN1959424A (en) | 2006-09-20 | 2006-09-20 | General type test instrument for communication ports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610122264 CN1959424A (en) | 2006-09-20 | 2006-09-20 | General type test instrument for communication ports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1959424A true CN1959424A (en) | 2007-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610122264 Pending CN1959424A (en) | 2006-09-20 | 2006-09-20 | General type test instrument for communication ports |
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| CN (1) | CN1959424A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458265B (en) * | 2007-12-14 | 2013-01-09 | 深圳富泰宏精密工业有限公司 | Power supply device for test |
| CN103376777A (en) * | 2012-04-13 | 2013-10-30 | 珠海格力电器股份有限公司 | Testing method for Modbus communication interface of controller and host computer |
| CN104537823A (en) * | 2014-12-29 | 2015-04-22 | 国家电网公司 | Device for detecting carrier communication of collector in power consumption information collection device |
| CN105319453A (en) * | 2014-07-11 | 2016-02-10 | 国家电网公司 | Device and system for testing environmental protection data acquisition instrument |
| CN106526458A (en) * | 2016-12-21 | 2017-03-22 | 珠海市中芯集成电路有限公司 | Communication detection device and detection method used for wafer test |
-
2006
- 2006-09-20 CN CN 200610122264 patent/CN1959424A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458265B (en) * | 2007-12-14 | 2013-01-09 | 深圳富泰宏精密工业有限公司 | Power supply device for test |
| CN103376777A (en) * | 2012-04-13 | 2013-10-30 | 珠海格力电器股份有限公司 | Testing method for Modbus communication interface of controller and host computer |
| CN103376777B (en) * | 2012-04-13 | 2016-03-16 | 珠海格力电器股份有限公司 | The method of testing of the Modbus communication interface of controller and host computer |
| CN105319453A (en) * | 2014-07-11 | 2016-02-10 | 国家电网公司 | Device and system for testing environmental protection data acquisition instrument |
| CN105319453B (en) * | 2014-07-11 | 2018-01-02 | 国家电网公司 | A kind of environment protection digital Acquisition Instrument test device and system |
| CN104537823A (en) * | 2014-12-29 | 2015-04-22 | 国家电网公司 | Device for detecting carrier communication of collector in power consumption information collection device |
| CN106526458A (en) * | 2016-12-21 | 2017-03-22 | 珠海市中芯集成电路有限公司 | Communication detection device and detection method used for wafer test |
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