CN205829654U - Power equipment communication test instrument - Google Patents
Power equipment communication test instrument Download PDFInfo
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- CN205829654U CN205829654U CN201620685893.2U CN201620685893U CN205829654U CN 205829654 U CN205829654 U CN 205829654U CN 201620685893 U CN201620685893 U CN 201620685893U CN 205829654 U CN205829654 U CN 205829654U
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Abstract
This utility model provides a kind of power equipment communication test instrument, and this tester includes MCU controller, RS485 interface test circuitry, RS232 interface test circuitry, infrared interface test circuit, GPRS interface test circuitry, WIFI interface test circuit and blue tooth interface test circuit.RS485 interface test circuitry includes RS485 test splice, RS485 communication module and RS485 signal sample circuit, and MCU controller sends RS485 to RS485 communication module and tests data, and RS485 communication module returns data to the conveying of MCU controller.RS485 test splice is electrically connected with RS485 communication module by the first switch element.RS485 signal sample circuit includes that sample path and the first ON-OFF control circuit, sampling path and the first ON-OFF control circuit electrically connect with the first switch element respectively.First ON-OFF control circuit receives the switch controlling signal that MCU controller is sent, and the first ON-OFF control circuit controls the connection of the first switching elements conductive or cut-off sampling path and RS485 test splice according to switch controlling signal.
Description
Technical field
This utility model relates to equipment communication check instrument field, concrete, relates to one and is applied to power equipment communication
The power equipment communication test instrument of interface testing.
Background technology
Along with the development of intelligent grid, it is many that Application of Power Metering Instruments develops into present function from the most simple electric energy meter
The electric energy meter of sample and terminal miscellaneous, wherein, terminal include negative control terminal, distribution transformer terminals, concentrator, harvester,
Plant stand terminal etc..These measuring equipments are provided with communication interface miscellaneous, if electric power operation maintenance personnel runs into logical at the scene
Letter fault, then need to detect communication interface and malfunction elimination, is used for detecting communication without special detection equipment
Interface, can cause certain puzzlement to work on the spot.
Additionally, due to the mouth that connects of field apparatus exists multiformity, therefore, operation maintenance personnel generally requires carries multiple communication
The instrument of interface detection, this can bring unnecessary trouble to operation maintenance personnel.
Summary of the invention
The purpose of this utility model is to provide a kind of a portable set, can detect at the scene of being convenient for carrying,
Field apparatus communicates malfunction elimination, and auxiliary quickly realizes on-the-spot O&M.Support the electricity of multiple communication interface test simultaneously
Power equipment communication test instrument.
To achieve these goals, this utility model provide power equipment communication test instrument include MCU controller,
RS485 interface test circuitry, RS232 interface test circuitry, infrared interface test circuit, GPRS interface test circuitry, WIFI connect
Mouthful test circuit and blue tooth interface test circuit, MCU controller respectively with RS485 interface test circuitry, RS232 interface testing electricity
Road, infrared interface test circuit, GPRS interface test circuitry, WIFI interface test circuit and blue tooth interface test circuit are electrically connected
Connect.RS485 interface test circuitry includes RS485 test splice, RS485 communication module and RS485 signal sample circuit, MCU
Controller sends RS485 to RS485 communication module and tests data, and RS485 communication module returns data to the conveying of MCU controller.
RS485 test splice is electrically connected with RS485 communication module by the first switch element.RS485 signal sample circuit includes sampling
Path and the first ON-OFF control circuit, sampling path and the first ON-OFF control circuit electrically connect with the first switch element respectively.The
One ON-OFF control circuit receives the switch controlling signal that MCU controller is sent, and the first ON-OFF control circuit is according to on-off control
Signal controls the connection of the first switching elements conductive or cut-off sampling path and RS485 test splice.
From such scheme, the RS485 interface test circuitry that this utility model power equipment communication test instrument is arranged leads to
Cross the communication data utilizing RS485 signal sample circuit to obtain between RS485 communication module and RS485 test splice, and transmit
Process in MCU controller, and judge whether tested RS485 communication interface breaks down.By polytype logical
Letter interface test circuitry is arranged on the same device, facilitates staff to carry, and can tackle the situation of different communication interface.
In one scheme, the first ON-OFF control circuit includes second switch element, second switch element respectively with MCU control
Device, the first switch element and power supply electrical connection.
As can be seen here, owing to the job demand of the first switch element provides a working power, at the first on-off control electricity
Road arranges second switch element and controls supply and the cut-out of working power, to reach to control the purpose of the first switch.
In another scheme, sampling path includes sampling resistor, and sampling resistor obtains from RS485 test splice and returns data
And return data are sent to MCU controller.
As can be seen here, the return data using sampling resistor that sampling path is obtained are more accurate, and then make tester
Test result more accurate.
Further in scheme, RS232 interface test circuitry include RS232 test splice, RS232 communication module and
RS232 signal sample circuit, RS232 signal sample circuit gathers what RS232 test splice returned to RS232 communication module
RS232 tests data.
As can be seen here, RS232 signal sample circuit is utilized to obtain what RS232 test splice returned to RS232 communication module
Data, and then can determine whether whether detected RS232 interface damages.
Further in scheme, infrared interface test circuit includes infrared communication module and infrared signal sample circuit,
Infrared signal sample circuit gathers the infrared test data that tested infrared interface returns to infrared communication module.
As can be seen here, infrared signal sample circuit is utilized to obtain the number that infrared test joint returns to infrared communication module
According to, and then can determine whether whether tested infrared interface damages.
Further in scheme, GPRS interface test circuitry includes GPRS communication module and GPRS signal sample circuit,
GPRS signal sample circuit gathers the GPRS test data that tested GPRS interface returns to GPRS communication module.
From such scheme, utilize GPRS signal sample circuit to obtain tested GPRS interface and return to GPRS communication module
Data, and then can determine whether whether tested GPRS interface damages.
Further in scheme, WIFI interface test circuit includes WIFI communication module and WIFI signal sample circuit,
WIFI signal sample circuit gathers the WIFI test data that tested WIFI interface returns to WIFI communication module.
As can be seen here, WIFI signal sample circuit is utilized to obtain the number that tested WIFI interface returns to WIFI communication module
According to, and then can determine whether whether tested WIFI interface is damaged.
Further in scheme, blue tooth interface test circuit includes bluetooth communication and Bluetooth signal sample circuit,
Bluetooth signal sample circuit gathers the bluetooth test data that tested blue tooth interface returns to bluetooth communication.
As can be seen here, Bluetooth signal sample circuit is utilized to obtain the number that tested blue tooth interface returns to bluetooth communication
According to, and then can determine whether whether tested blue tooth interface damages.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of this utility model power equipment communication test instrument embodiment.
Fig. 2 is the circuit theory of RS485 interface test circuitry in this utility model power equipment communication test instrument embodiment
Figure.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
As it is shown in figure 1, power equipment communication test instrument of the present utility model includes MCU controller 1, RS485 interface testing
Circuit 2, RS232 interface test circuitry 3, infrared interface test circuit 4, GPRS interface test circuitry 5, WIFI interface test circuit
6 and blue tooth interface test circuit 7, MCU controller 1 respectively with RS485 interface test circuitry 2, RS232 interface test circuitry 3, red
External tapping test circuit 4, GPRS interface test circuitry 5, WIFI interface test circuit 6 and blue tooth interface test circuit 7 electrically connect.
Additionally, power equipment communication test instrument also includes that host computer interface 8, MCU controller 1 pass through host computer interface 8 by RS485 interface
Test circuit 2, RS232 interface test circuitry 3, infrared interface test circuit 4, GPRS interface test circuitry 5, WIFI interface test
Circuit 6 and blue tooth interface test the obtained data of circuit 7 are sent in host computer (such as mobile phone, computer etc.), in order to user checks.
Wherein, RS232 interface test circuitry 3 includes that RS232 test splice 33, RS232 communication module 31 and RS232 are believed
Number sample circuit 32, RS232 signal sample circuit 32 gathers what RS232 test splice 33 returned to RS232 communication module 31
RS232 tests data.Infrared interface test circuit 4 includes infrared communication module 41 and infrared signal sample circuit 42, infrared
Signal sample circuit 42 gathers the infrared test data that tested infrared interface (not shown) returns to infrared communication module 41.GPRS
Interface test circuitry 5 includes GPRS communication module 51 and GPRS signal sample circuit 52, and GPRS signal sample circuit 52 gathers
The GPRS that tested GPRS interface (not shown) returns to GPRS communication module 51 tests data.WIFI interface test circuit 6 includes
WIFI communication module 61 and WIFI signal sample circuit 62, WIFI signal sample circuit gathers 62 tested WIFI interface and (does not shows
Go out) test data to the WIFI of WIFI communication module 61 return.Blue tooth interface test circuit 7 include bluetooth communication 71 and
Bluetooth signal sample circuit 72, Bluetooth signal sample circuit 72 gathers tested blue tooth interface (not shown) to bluetooth communication 71
The bluetooth test data returned.
It addition, see Fig. 2, RS485 interface test circuitry 2 include RS485 test splice 23, RS485 communication module 21 with
And RS485 signal sample circuit 22, MCU controller 1 sends RS485 to RS485 communication module 21 and tests data, and RS485 communicates
Module 21 returns data to MCU controller 1 conveying.RS485 test splice 23 is communicated mould by the first switch element J1 with RS485
Block 21 electrically connects, and in the present embodiment, the first switch element J1 includes relay switch.RS485 signal sample circuit 22 includes sampling
Path 221 and the first ON-OFF control circuit 222, sampling path 221 and the first ON-OFF control circuit 222 are first with the first switch respectively
Part J1 electrically connects.First ON-OFF control circuit 222 receives the switch controlling signal that MCU controller 1 is sent, the first on-off control
Circuit 222 controls the first switch element J1 on or off sampling path 221 and RS485 test splice according to switch controlling signal
The connection of 23.
Wherein, the first ON-OFF control circuit 222 includes second switch element, and the second switch element in the present embodiment includes
PNP transistor Q1, the base stage of PNP transistor Q1 is electrically connected by resistance R4 and MCU controller 1, the emitter stage of PNP transistor Q1
Access power supply VCC, the colelctor electrode of PNP transistor Q1 and the first switch element J1 electrical connection, meanwhile, resistance R4 and MCU controller 1
The path connected is by resistance R5 electric connection of power supply VCC.Sampling path 221 includes sampling resistor, and sampling resistor is tested from RS485
Joint 23 obtains and returns data and return data are sent to MCU controller 1.Sampling resistor includes resistance R1, resistance R2 and electricity
Resistance R3, resistance R1 are connected in series with resistance R2, and one end of resistance R3 is connected electrically on the path that resistance R1 and resistance R2 is connected, electricity
The other end ground connection GND of resistance R3.
Operationally, MCU controller 1 is according to tested communication interface not for power equipment communication test instrument of the present utility model
With sending different test signals, and the information returned tested communication interface by each communication interface sample circuit is adopted
Collection, finally judges whether tested communication interface exists exception.In order to be better understood from this utility model, below RS485 is connect
The operation principle of mouth test circuit 2 is described in detail.
When testing RS485 communication interface, MCU controller 1 sends RS485 test to RS485 communication module 21
Data, RS485 communication module 21 is transmitted to RS485 test splice 23 direction after receiving RS485 test data.Now, relay
First switch element of device switch J1, i.e. the present embodiment makes RS485 communication module 21 be in RS485 test splice 23 and connects shape
State, RS485 test splice 23 and RS485 signal sample circuit 22 be in cut-off state, and RS485 test data are surveyed by RS485
Try 23 transmission to tested RS485 communication interface.Tested RS485 communication interface is according to testing data to RS485 communication module
21 send return data.When tested RS485 communication interface sends and returns data, MCU controller 1 is to PNP transistor Q1, i.e. originally
The second switch element of embodiment sends switch controlling signal so that the first ON-OFF control circuit 222 turns on, and then brilliant with PNP
The emitter stage of body pipe Q1 connects power supply VCC and powers to relay switch J1 so that relay switch J1 is by RS485 communication module 21
Ending with the path of RS485 test splice 23, RS485 test splice 23 turns on the path of RS485 signal sample circuit 22.
RS485 signal sample circuit 22 is acquired returning data and sends to MCU controller 1, and MCU controller 1 is according to return
Data judge that tested RS485 communication interface is the most normal.MCU controller 1 finally will determine that data return host computer, looks into for user
See.
Additionally, RS232 interface test circuitry 3, infrared interface test circuit 4, GPRS interface test circuitry 5, WIFI interface
Test circuit 6 is similar to the operation principle of RS485 interface test circuitry 2 with the operation principle of blue tooth interface test circuit 7, difference
Point is only that and respective communication module and sample circuit, does not repeats them here.
As seen from the above description, this utility model power equipment communication test instrument is by polytype communication interface test electricity
Road is arranged on the same device, facilitates staff to carry, and can tackle the situation of different communication interface.Additionally, arrange
RS485 interface test circuitry 2 connects with RS485 test by utilizing RS485 signal sample circuit 22 to obtain RS485 communication module 21
Communication data between 23, and be sent in MCU controller 1 process, and judge that tested RS485 communication interface is
No break down.
It should be noted that these are only preferred embodiment of the present utility model, but the design concept of utility model is not
It is confined to this, all insubstantial modifications utilizing this design that this utility model is made, also each fall within protection of the present utility model
Within the scope of.
Claims (10)
1. power equipment communication test instrument, including MCU controller, RS485 interface test circuitry, RS232 interface test circuitry, red
External tapping test circuit, GPRS interface test circuitry, WIFI interface test circuit and blue tooth interface test circuit, described MCU is controlled
Device processed tests circuit, institute with described RS485 interface test circuitry, described RS232 interface test circuitry, described infrared interface respectively
State GPRS interface test circuitry, described WIFI interface test circuit and the test circuit electrical connection of described blue tooth interface, its feature
It is:
Described RS485 interface test circuitry includes RS485 test splice, RS485 communication module and RS485 signal sampling electricity
Road, described MCU controller sends RS485 to described RS485 communication module and tests data, and described RS485 communication module is to described
The conveying of MCU controller returns data；
Described RS485 test splice is electrically connected with described RS485 communication module by the first switch element；
Described RS485 signal sample circuit includes sample path and the first ON-OFF control circuit, described sampling path and described the
One ON-OFF control circuit electrically connects with described first switch element respectively；
Described first ON-OFF control circuit receives the switch controlling signal that described MCU controller is sent, described first switch control
Circuit processed controls described first switching elements conductive according to described switch controlling signal or ends described sampling path with described
The connection of RS485 test splice.
Power equipment communication test instrument the most according to claim 1, it is characterised in that: described first ON-OFF control circuit bag
Including second switch element, described second switch element is electric with described MCU controller, described first switch element and power supply respectively
Connect.
Power equipment communication test instrument the most according to claim 2, it is characterised in that: described sampling path includes sampling electricity
Resistance, described sampling resistor obtains described return data from described RS485 test splice and described return data is sent to described
MCU controller.
Power equipment communication test instrument the most according to claim 3, it is characterised in that:
Described first switch element includes relay switch.
Power equipment communication test instrument the most according to claim 4, it is characterised in that:
Described second switch element includes triode transistor.
6. according to the power equipment communication test instrument described in any one of claim 1 to 5, it is characterised in that:
Described RS232 interface test circuitry includes RS232 test splice, RS232 communication module and RS232 signal sampling electricity
Road, described RS232 signal sample circuit gathers the RS232 survey that described RS232 test splice returns to described RS232 communication module
Examination data.
7. according to the power equipment communication test instrument described in any one of claim 1 to 5, it is characterised in that:
Described infrared interface test circuit includes infrared communication module and infrared signal sample circuit, and described infrared signal is sampled
Circuit gathers the infrared test data that tested infrared interface returns to described infrared communication module.
8. according to the power equipment communication test instrument described in any one of claim 1 to 5, it is characterised in that:
Described GPRS interface test circuitry includes GPRS communication module and GPRS signal sample circuit, described GPRS signal sampling
Circuit gathers the GPRS test data that tested GPRS interface returns to described GPRS communication module.
9. according to the power equipment communication test instrument described in any one of claim 1 to 5, it is characterised in that:
Described WIFI interface test circuit includes WIFI communication module and WIFI signal sample circuit, and described WIFI signal is sampled
Circuit gathers the WIFI test data that tested WIFI interface returns to described WIFI communication module.
10. according to the power equipment communication test instrument described in any one of claim 1 to 5, it is characterised in that:
Described blue tooth interface test circuit includes bluetooth communication and Bluetooth signal sample circuit, and described Bluetooth signal is sampled
Circuit gathers the bluetooth test data that tested blue tooth interface returns to described bluetooth communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685893.2U CN205829654U (en) | 2016-06-30 | 2016-06-30 | Power equipment communication test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620685893.2U CN205829654U (en) | 2016-06-30 | 2016-06-30 | Power equipment communication test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205829654U true CN205829654U (en) | 2016-12-21 |
Family
ID=57567862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620685893.2U Active CN205829654U (en) | 2016-06-30 | 2016-06-30 | Power equipment communication test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205829654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888299A (en) * | 2017-11-17 | 2018-04-06 | 国网冀北电力有限公司电力科学研究院 | A kind of test device of communication module |
| CN110941214A (en) * | 2019-09-05 | 2020-03-31 | 浙江华云信息科技有限公司 | Intelligent energy controller |
-
2016
- 2016-06-30 CN CN201620685893.2U patent/CN205829654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888299A (en) * | 2017-11-17 | 2018-04-06 | 国网冀北电力有限公司电力科学研究院 | A kind of test device of communication module |
| CN110941214A (en) * | 2019-09-05 | 2020-03-31 | 浙江华云信息科技有限公司 | Intelligent energy controller |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |