CN202693709U - Testing tool and testing system for electrical equipment - Google Patents
Testing tool and testing system for electrical equipment Download PDFInfo
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- CN202693709U CN202693709U CN 201220382512 CN201220382512U CN202693709U CN 202693709 U CN202693709 U CN 202693709U CN 201220382512 CN201220382512 CN 201220382512 CN 201220382512 U CN201220382512 U CN 201220382512U CN 202693709 U CN202693709 U CN 202693709U
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- 238000012360 testing method Methods 0.000 title claims abstract description 181
- 238000004891 communication Methods 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000013522 software testing Methods 0.000 abstract 1
- 238000010998 test method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000005057 refrigeration Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002224 dissection Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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Abstract
The utility model discloses an electrical equipment's test fixture, test system. The test tool comprises a first communication circuit, a second communication circuit and a test module, wherein the first communication circuit is used for connecting an upper computer and receiving a test command sent by the upper computer; the main chip is used for generating a control command according to the test command; and the control key circuit is used for controlling the key circuit to be switched on or switched off according to the control command so as to control the operation of the electrical equipment, wherein the control terminal of the electrical equipment is provided with a mechanical key and comprises the key circuit. Through the utility model discloses, can utilize the test command of host computer to realize the control of control terminal machinery button, and then control electrical equipment operation and accomplish electrical equipment's test, guarantee the test coverage, avoid retesting and leak the survey, realize automatic test, shorten the cycle of test, improve electrical equipment's efficiency of software testing.
Description
Technical field
The utility model relates to field tests, in particular to a kind of test fixture, test macro of electric equipment.
Background technology
At present, when testing with the electric equipment of mechanical key control terminal, usually need to rely on test man's hand operating mechanism button come the operation of control apparatus equipment, thereby finish the test to electric equipment.When for example commercial use air conditioner being tested, need test man's manually-operated manual operator control air conditioner unit operation, change the running status of unit, realize the test to unit.
There is following shortcoming in this manual testing's method: the first, and test period is long, testing efficiency is low, causes very very long of development progress; The second, testing reliability is poor, and test mass can't guarantee, often can be because test man's measuring technology or the impact of test mode, and duplicate the phenomenon of test or test leakage.
For the low problem of electric equipment testing efficiency in the correlation technique, effective solution is proposed not yet at present.
The utility model content
Fundamental purpose of the present utility model is to provide a kind of test fixture, test macro of electric equipment, to solve the low problem of electric equipment testing efficiency.
To achieve these goals, according to an aspect of the present utility model, provide a kind of test fixture of electric equipment.
Test fixture according to electric equipment of the present utility model comprises: the first communicating circuit is used for connecting host computer, the test command that issues to receive host computer; Master chip is connected with the first communicating circuit, is used for generating control command according to test command; And the control key circuit, be connected with master chip, be used for according to the closed or disconnection of control command control key circuit, with the operation of control apparatus equipment, wherein, the control terminal of this electric equipment is with mechanical key, and this control terminal comprises key circuit.
Further, this control terminal also comprises reset circuit and memory chip, and this test fixture also comprises: the control reset circuit, be connected with master chip, and be used for the control reset circuit, so that finishing, control terminal resets; And reading circuit, be connected with master chip, be used for when control terminal resets, reading the operational factor of the electric equipment of storing in the memory chip.
Further, this test fixture also comprises: the second communicating circuit, be connected with master chip, and be used for the operational factor of electric equipment is uploaded to host computer.
Further, control key circuit and comprise relay, by adhesive and the closed or disconnection of disconnection control key circuit of relay.
To achieve these goals, according to another aspect of the present utility model, provide a kind of test macro of electric equipment.
Test macro according to electric equipment of the present utility model comprises: host computer; Control terminal is used for the operation of control apparatus equipment, and wherein, control terminal is with mechanical key; And test fixture, be connected respectively with host computer and electric equipment, be used for the test command control mechanical key that issues according to host computer, with control apparatus equipment, wherein, the test fixture of any one electric equipment that this test fixture provides for the utility model.
Further, host computer comprises the monitoring module, for the communication data between the master control borad of monitoring control terminal and electric equipment.
Further, control terminal has display screen, and this display screen is used for the duty of display control terminal, this test macro also comprises: camera head, be connected with host computer, be used for the image of reading displayed screen, so that host computer is according to the duty of image recognition control terminal.
By the utility model, adopt the test fixture of the electric equipment comprise following part: be used for connecting host computer, to receive the first communicating circuit of the test command that host computer issues; Be used for generating according to test command the master chip of control command; And be used for according to the closed or disconnection of control command control key circuit, control key circuit with the operation of control apparatus equipment, can be by the test command of host computer, realize the control of control terminal mechanical key via the control key circuit, and then the test of electric equipment is finished in the operation of control apparatus equipment, guarantee test coverage, avoid resurveying and test leakage, realized automatic test, shorten the cycle of test, solve the low problem of electric equipment testing efficiency, and then reached the effect that improves the electric equipment testing efficiency.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the theory diagram according to the test fixture of the electric equipment of the utility model the first embodiment;
Fig. 2 is the theory diagram according to the test fixture of the electric equipment of the utility model the second embodiment;
Fig. 3 is the theory diagram according to the test macro of the electric equipment of the utility model embodiment;
Fig. 4 is the workflow diagram according to the test macro of the electric equipment of the utility model embodiment; And
Fig. 5 is the process flow diagram according to the method for testing of the electric equipment of the utility model embodiment.
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 is the theory diagram according to the test fixture of the electric equipment of the utility model the first embodiment, and as shown in Figure 1, this test fixture comprises communicating circuit 20, master chip 40 and control key circuit 60.
Tested electric equipment among this embodiment comprises control terminal, the user is when using this tested electric equipment, can pass through the operation of the mechanical key control apparatus equipment of control terminal, wherein, mechanical key can be button or button etc., the user triggers the closed or disconnection of key circuit of control terminal inside by button or button, runs on different duties or running parameter with control apparatus equipment.
The test man will comprise the test procedure input host computer of test command, host computer is issued to test fixture via communicating circuit 20 with test command, communicating circuit 20 connects host computer, the test command that issues to receive host computer, the master chip 40 of test fixture is connected with communicating circuit 20, after receiving test command, dissection process is carried out in order, generate control command control key circuit 60 according to test command, control key circuit 60 is connected with the key circuit of electric equipment, be used for according to the closed or disconnection of control command control key circuit, with the operation of control apparatus equipment, run on different duties, or adopt different running parameter operations.
The test fixture that adopts this embodiment to provide, can be by the test command of host computer, realize the control of control terminal mechanical key via the control key circuit, and then the operation of control apparatus equipment, finish the test of electric equipment, guarantee test coverage, avoid resurveying and test leakage, realize automatic test, shortened the cycle of test, improved the testing efficiency of electric equipment.
Fig. 2 is the theory diagram according to the test fixture of the electric equipment of the utility model the second embodiment, as shown in Figure 2, this test fixture comprises program burn writing circuit 10, communicating circuit 20, control reset circuit 30, master chip 40, reading circuit 50, control key circuit 60, reset circuit 70, power circuit 80 and crystal oscillating circuit 90.
Program burn writing circuit 10 is connected with master chip 40, is used for entering the program that need to upgrade to the programming of working plate master chip.Control reset circuit 30 is connected respectively with the reset circuit of master chip 40 and control terminal, and after working plate powered on, control terminal was finished and resetted.When control terminal resetted, reading circuit 50 read the operational factor of the electric equipment of storing in the control terminal memory chip.When communicating circuit 20 receives the test command that host computer issues and is sent to master chip 40, master chip 40 is resolved the test command that receives and the operational factor that reads, the host computer data that receive and the data that read are compared, determine which pin of control terminal key circuit is controlled, generate corresponding control command, control key circuit 60 is according to the corresponding pin of this control command control key circuit, to close the operation of control apparatus equipment, run on different duties, or adopt different running parameter operations.
The test fixture that adopts this embodiment to provide is determined the concrete pin of controlled key circuit by the control terminal memory chip data that compare the host computer data and read, and control mode is simple, accurate.
Preferably, communicating circuit 20 also is used for the operational factor of electric equipment is uploaded to host computer, thereby the test man can revise test command according to operational factor at host computer.
Further preferably, control key circuit 60 comprises relay, and control key circuit 60 also is used for passing through the adhesive of relay and disconnects the closed or disconnection of control key circuit.
Fig. 3 is the theory diagram according to the test macro of the electric equipment of the utility model embodiment, and as shown in Figure 3, this test macro is take the testing air conditioner device as example, and wherein, control terminal is the manual operator of air conditioner.This test macro comprises host computer, manual operator and test fixture plate.
Wherein, with the operation of mechanical key manual operator control air conditioner, host computer can be computing machine, working plate be connected manual operator with air conditioner with host computer and be connected respectively, the test command that is used for issuing according to host computer is controlled the mechanical key of manual operator, with the operation of control air conditioner.
Control software utilizes the exploitation of Labview development platform in the host computer, include user interface, the test man writes ini file according to steering logic, the content of needs test is saved in the ini file, and it is imported upper computer software, call these ini files by upper computer software, set the execution time after, host computer can call corresponding ini file with sequential according to the time of setting, and is handed down to working plate.Simultaneously, ready-made ini file can be saved in the ini file storehouse, directly go to call during for follow-up test identity logic function, further improve testing efficiency.
By the communication of Modbus communications protocol, communication chip adopts the MAX13089EESD chip between host computer and the working plate, carries out communication by 485 between the two.Host computer writes working plate to the ini file corresponding data via the communicating circuit of working plate, the master chip of working plate adopts the LPC2138 chip, the data that receive are carried out dissection process, by master chip I/O mouth control control key circuit, so that relay adhesive or the disconnection of correspondence in the control key circuit, and then conducting and the disconnection of the key circuit of manual operator have been controlled, relay directly links to each other with the manual operator button, when the relay adhesive, being equivalent to the manual operator button is pressed, realize the robotization control of mechanical key manual operator, realized the automatic test of external machine.
When the test man tests, after outer owner's plate of mechanical key manual operator and air conditioner connects, again relay corresponding connect of the key circuit of manual operator with the control key circuit of working plate, by 485 converters host computer and working plate are coupled together at last and just can realize test, when needs change air-conditioning state by manual operator, only need on the corresponding control on the upper computer software interface, get final product by selection mode, when needs are tested different steering logics, only need to call different programs at host computer and get final product.
Particularly, the workflow of this test macro as shown in Figure 4, the test man was integrated into the condition that will test, steering logic in the ini file of Labview in when test, ini file is imported in the upper computer software of Labview exploitation, and the time of calling and carrying out this ini file is set.After working plate powered on, this working plate master chip control manual operator reset circuit was so that manual operator is in reset mode, working plate reads the memory contents of manual operator memory chip, working plate is finished manual operator and is resetted after having read manual operator memory content, and manual operator enters normal operating conditions.Current time is when reaching the time of carrying out this ini file, host computer issues test command, working plate receives the order that host computer sends, resolution data, and the answer host computer, corresponding relay adhesive and disconnection are controlled in the order that the master chip of working plate sends according to host computer, the corresponding key circuit closed and disconnected of manual operator, the different key of control manual operator is pressed, and has controlled the running status of the outer machine of air conditioner.
In the test macro that this embodiment provides, need not manual operation manual operator button, by the ini file that writes, set the time of execution at host computer after, to the execution time, host computer will issue test command automatically to working plate, working plate control manual operator button, and then the operation of control air conditioner.The test macro that adopts this embodiment to provide, guaranteed reliably test coverage, working plate is carried out ini file according to the test man and is carried out test, reduce greatly test leakage, effectively improved test mass, simultaneously, realized automatic test, the time that can effectively utilize the test man to have a rest and have a meal tests, and has shortened the cycle of test, has improved testing efficiency.
The master chip of manual operator has reseting pin, preferably, control this reseting pin via the control reset circuit by the I/O mouth of working plate, the control manual operator resets, carry out communication by the I2C bus of master chip on the working plate and the I2C bus of mechanical key manual operator memory chip again, thereby the reading circuit that makes working plate reads the data of display memory chip, master chip these Data Analysis out, compare with the data that receive host computer, thereby need to determine which button of control to finish test operation.
Be more specifically, the data that read comprise on-off state, design temperature under operational mode and each operational mode, timing and system time, and the state of each load etc., master chip is preserved these data, these data with receive the data that host computer sends over and compare, thereby determine that button of control, should be by several times.For example, read that operational mode is refrigeration mode in the data of manual operator memory chip, and data corresponding to refrigeration mode are 0x00, if it is to switch to heating mode that host computer sends to the order that comes, the data that heating mode is corresponding are 0x03, then master chip is with regard to relay corresponding to control model button, allows this relay adhesive 3 times, and manual operator just can switch to heating mode.
Adopt the preferred embodiment, determine the concrete pin of controlled key circuit by the control terminal memory chip data that compare the host computer data and read, control mode is simple, accurate.
Preferably, the communicating circuit of working plate also is uploaded to host computer for the operational factor of the electric equipment that will read, thereby the test man can revise test command according to operational factor at host computer.
Manual operator has display screen, this display screen is used for showing the duty of manual operator, preferably, this test macro also comprises: camera head, this camera head is preferably the USB camera by the labview exploitation, by this camera, and the image of direct reading displayed screen, the data communication device that obtains is crossed the duty of identifying manual operator after host computer is processed, thereby so that the test man revises test procedure according to the duty of manual operator.
Be more specifically, the image of the display screen that reads by camera, the image that reads and the template image in the database are compared, obtain a result, and show at the host computer Chinese font that image is corresponding, and data corresponding to this image are sent to working plate, working plate is determined the current operational mode of manual operator after reading these data.For example, the current operational mode of manual operator is refrigeration, read the picture of refrigeration mode by camera, (defined Chinese font corresponding to refrigeration mode picture is " refrigeration mode " in the data Kuku, the data of corresponding refrigeration mode are 0x00) host computer will show Chinese font corresponding to refrigeration mode picture " refrigeration mode ", by communication corresponding data 0x00 is sent to working plate, the working plate receive data is also resolved.
Adopt the preferred embodiment, also directly be sent to host computer by the image of setting up camera head reading displayed screen, parse the duty of manual operator by host computer, and then so that the test man can revise test procedure according to the duty that parses, need not test fixture and set up interlock circuit, so that the circuit of test fixture is simple.
Preferably, host computer also is used for monitoring software by SCC and monitors the communication data between owner's plate outside manual operator and the air conditioner, the data that listen to comprise the data that data that outer owner's plate sends or manual operator send, wherein, the data that outer owner's plate sends comprise the running status of mainboard, state of the pattern of current operation, temperature-sensitive bag temperature value, load etc. for example, host computer receives software by the serial ports of labview exploitation, from communication data, read the duty of manual operator, thereby so that the test man revises test procedure according to the duty of manual operator.
For example, first position of first byte of the communications protocol definition valid data between manual operator and air conditioner is the on-off state position, and 0 represents off-mode, and opposite 1 represents open state, be 1 when listening to first byte of valid data, illustrate that air conditioner is in open state.
Adopt the preferred embodiment, resolve the duty of manual operator by the communication data between monitoring manual operator and the outer owner's plate of air conditioner, so that the test man can revise test procedure according to the duty that parses, can realize by software, need not to set up hardware circuit, reduce the hardware cost of test macro.
Fig. 5 is the process flow diagram according to the method for testing of the electric equipment of the utility model embodiment, electric equipment among this embodiment is with the mechanical key control terminal, this control terminal comprises key circuit, and as shown in Figure 5, the method comprises that following step S102 is to step S106.
Step S102: receive the test command that host computer issues.
The test man writes test procedure according to the content that will test, will comprise that the test procedure of test command is handed down to proving installation, and proving installation receives the order that host computer issues.Wherein, any one test fixture that provides in this embodiment can be provided this proving installation.
Step S104: generate control command according to test command.
The master chip of proving installation is resolved test command, generates control command according to test command.
Step S106: according to the closed or disconnection of control command control key circuit, with the operation of control apparatus equipment,
The method of testing that adopts this embodiment to provide, can be by the test command of host computer, realize the control of control terminal mechanical key, and then the operation of control apparatus equipment, finish the test of electric equipment, guarantee test coverage, avoid resurveying and test leakage, realize automatic test, shortened the cycle of test, improved the testing efficiency of electric equipment.
Preferably, control terminal also comprises reset circuit and memory chip, is receiving before the test command that host computer issues, and the method also comprises: the control reset circuit is so that control terminal is finished resets; And when control terminal resets, read the operational factor of the electric equipment of storing in the memory chip, wherein, generate control command according to test command and comprise: the operational factor according to test command and electric equipment generates control command, to determine which pin of control key circuit.
Adopt the preferred embodiment, at first control terminal is resetted, and in reseting procedure, read the operational factor of the electric equipment of storing in the memory chip, thereby determine the concrete pin of controlled key circuit by the control terminal memory chip data that compare the host computer data and read, control mode is simple, accurate.
Preferably, this method of testing also comprises: the operational factor of electric equipment is uploaded to host computer, so that host computer is resolved this operational factor, according to the duty of the controlled terminal of history run Parameter analysis of electrochemical, thereby so that the test man can revise test procedure according to duty.
Adopt the preferred embodiment, the operational factor of the electric equipment that reads is uploaded to host computer, thereby the test man can revise test command according to operational factor at host computer.
Preferably, this method of testing also comprises: the communication data between the master control borad of monitoring control terminal and electric equipment, host computer is by the communication data between SCC monitoring software monitoring control terminal and the tested electric equipment, host computer reads the duty of control terminal from the communication data that listens to, thereby so that the test man revises test procedure according to the duty of control terminal.
Adopt the preferred embodiment, resolve the duty of control terminal by monitoring control terminal and the communication data of tested electric equipment, so that the test man can be according to the duty modification test procedure that parses.
Control terminal has display screen, and display screen is used for the duty of display control terminal, and preferably, this method of testing also comprises: the image of reading displayed screen; And according to the duty of image recognition control terminal.
Adopt the preferred embodiment, by the image of camera head reading displayed screen, can parse the duty of control terminal by host computer, and then so that the test man can revise test procedure according to the duty that parses.
From above description, can find out, the utility model has been realized following technique effect: by the test command of host computer, via the control of control key circuit realization control terminal mechanical key, and then the operation of control apparatus equipment is finished the test of electric equipment, the assurance test coverage, avoid resurveying and test leakage, realize automatic test, shortened the cycle of test, improved the testing efficiency of electric equipment.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. the test fixture of an electric equipment, the control terminal of described electric equipment is with mechanical key, and described control terminal comprises key circuit, it is characterized in that, and described test fixture comprises:
The first communicating circuit is used for connecting host computer, the test command that issues to receive described host computer;
Master chip is connected with described the first communicating circuit, is used for generating control command according to described test command; And
The control key circuit is connected with described master chip, is used for controlling the closed or disconnection of described key circuit according to described control command, to control described electric equipment operation.
2. the test fixture of electric equipment according to claim 1 is characterized in that, described control terminal also comprises reset circuit and memory chip, and described test fixture also comprises:
The control reset circuit is connected with described master chip, is used for controlling described reset circuit, resets so that described control terminal is finished; And
Reading circuit is connected with described master chip, is used for reading the operational factor of the described electric equipment of storing in the described memory chip when described control terminal resets.
3. the test fixture of electric equipment according to claim 2 is characterized in that, also comprises:
The second communicating circuit is connected with described master chip, is used for the operational factor of described electric equipment is uploaded to described host computer.
4. the test fixture of electric equipment according to claim 1 is characterized in that, described control key circuit comprises relay, by adhesive and the closed or disconnection of the described key circuit of disconnection control of described relay.
5. the test macro of an electric equipment is characterized in that, comprising:
Host computer;
Control terminal is used for controlling the operation of described electric equipment, and wherein, described control terminal is with mechanical key; And
Test fixture, with described host computer be connected electric equipment and be connected respectively, be used for controlling described mechanical key according to the test command that described host computer issues, to control described electric equipment, wherein, described test fixture is the test fixture of each described electric equipment in the claim 1 to 4.
6. the test macro of electric equipment according to claim 5 is characterized in that, described host computer comprises:
Monitor module, for the communication data between the master control borad of monitoring described control terminal and described electric equipment.
7. the test macro of electric equipment according to claim 5 is characterized in that, described control terminal has display screen, and described display screen is used for showing the duty of described control terminal, and described test macro also comprises:
Camera head is connected with described host computer, is used for reading the image of described display screen, so that described host computer is according to the duty of the described control terminal of described image recognition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382512 CN202693709U (en) | 2012-08-02 | 2012-08-02 | Testing tool and testing system for electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382512 CN202693709U (en) | 2012-08-02 | 2012-08-02 | Testing tool and testing system for electrical equipment |
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| CN202693709U true CN202693709U (en) | 2013-01-23 |
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| CN 201220382512 Expired - Fee Related CN202693709U (en) | 2012-08-02 | 2012-08-02 | Testing tool and testing system for electrical equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543359A (en) * | 2013-10-28 | 2014-01-29 | 中国电子科技集团公司第四十一研究所 | Method for achieving self-defining test function sequence in a microwave measurement apparatus |
| CN103576018A (en) * | 2012-08-02 | 2014-02-12 | 珠海格力电器股份有限公司 | Testing tool, testing system and testing method for electrical equipment |
| CN104111644A (en) * | 2014-07-01 | 2014-10-22 | 珠海格力电器股份有限公司 | Monitoring system of household electrical appliances |
| CN104391205A (en) * | 2014-12-03 | 2015-03-04 | 中国航空综合技术研究所 | Voltage fault injector with variable gain |
| CN109059198A (en) * | 2018-07-23 | 2018-12-21 | 珠海格力电器股份有限公司 | Automatic engineering debugging method, device and system for equipment and computer equipment |
-
2012
- 2012-08-02 CN CN 201220382512 patent/CN202693709U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576018A (en) * | 2012-08-02 | 2014-02-12 | 珠海格力电器股份有限公司 | Testing tool, testing system and testing method for electrical equipment |
| CN103543359A (en) * | 2013-10-28 | 2014-01-29 | 中国电子科技集团公司第四十一研究所 | Method for achieving self-defining test function sequence in a microwave measurement apparatus |
| CN103543359B (en) * | 2013-10-28 | 2016-04-13 | 中国电子科技集团公司第四十一研究所 | The implementation method of self-defined test function sequence in a kind of microwave measuring instrument |
| CN104111644A (en) * | 2014-07-01 | 2014-10-22 | 珠海格力电器股份有限公司 | Monitoring system of household electrical appliances |
| CN104391205A (en) * | 2014-12-03 | 2015-03-04 | 中国航空综合技术研究所 | Voltage fault injector with variable gain |
| CN104391205B (en) * | 2014-12-03 | 2017-04-19 | 中国航空综合技术研究所 | Voltage fault injector with variable gain |
| CN109059198A (en) * | 2018-07-23 | 2018-12-21 | 珠海格力电器股份有限公司 | Automatic engineering debugging method, device and system for equipment and computer equipment |
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