CN108072855B - Testing device and testing system - Google Patents
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- CN108072855B CN108072855B CN201611010065.XA CN201611010065A CN108072855B CN 108072855 B CN108072855 B CN 108072855B CN 201611010065 A CN201611010065 A CN 201611010065A CN 108072855 B CN108072855 B CN 108072855B
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Abstract
The invention provides a testing device and a testing system, comprising: the communication module is used for receiving a first instruction sent by the upper computer; the analog signal output module is used for generating a first analog signal according to the first instruction and sending the first analog signal to the detection box; the detection box generates a first feedback signal according to the first analog signal; the load and state switching module is used for generating a simulated load network according to the first instruction, and after the detection box receives the first simulation signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module for detecting the simulated load network; the detection box generates a second feedback signal according to the detection result; and the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal. The testing device and the testing system can simulate the working environment of the detection box in practical application, realize the rapid detection of the test result of the detection box through analog signal interaction, and improve the testing efficiency.
Description
Technical Field
The invention relates to the technical field of testing of LEU cable detection boxes, in particular to a testing device and a testing system.
Background
In transponder systems, it is necessary for a LEU cable test box to detect cable faults between a surface electronic unit (LEU) and a transponder between which the LEU cable test box is connected.
The LEU cable detection box has two parts of debugging and testing before leaving factory. The debugging part starts the debugging step of the LEU cable detection box after confirming that the connection state of each device is normal. The parameters of the LEU cable detection box are manually input on the upper computer through a small serial assistant and are sent to the LEU cable detection box equipment through a serial port. After the writing is finished, the upper computer reads back the written parameters through the serial port, and manual checking is carried out to check whether the writing is correct or not.
The test part is to carry out a test mode after debugging is finished, and because a connecting cable (the length of the cable is between 200m and 4500 m) with a plurality of distances is very occupied space during testing, the weight is large, the transfer is very inconvenient, and the test can be carried out only in a fixed place during testing. The test mode comprises CAN communication test, serial port communication test, open circuit test and short circuit test of the connecting cable at a plurality of distances, vehicle passing signal test and LEU cable detection box instruction information verification. For CAN communication test and serial port communication test, the LEU cable detection box instruction information is checked by manually comparing after data is read back through general software on an upper computer, and whether the detection information is correct or not is judged. For open-circuit and short-circuit tests under a plurality of distances, cables and connection states at various distances need to be manually switched, and the efficiency is low. When the vehicle signal is tested, two persons are required to cooperate and carry out simultaneously, one person carries out the activation operation of the transponder, and the other person carries out the test of the vehicle signal.
Therefore, how to rapidly detect the test result of the LEU cable detection box is an urgent problem to be solved.
Disclosure of Invention
In order to solve the problems, the invention provides a testing device and a testing system, which can quickly detect the testing result of the LEU cable detection box.
In order to achieve the purpose, the invention provides the following technical scheme:
a test apparatus, the test apparatus comprising:
the device comprises a communication module, an analog signal output module and a load and state switching module;
the communication module is used for receiving a first instruction sent by the upper computer;
the analog signal output module is used for generating a first analog signal according to the first instruction and sending the first analog signal to the detection box; the detection box generates a first feedback signal according to the first analog signal;
the load and state switching module is used for generating a simulated load network according to the first instruction;
when the detection box receives the first analog signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module for detecting the analog load network; the detection box generates a second feedback signal according to the detection result;
and the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
Preferably, in the above test apparatus, the test apparatus further includes:
and the power supply module is used for providing voltage for the test device.
Preferably, in the above test apparatus, the test apparatus further includes:
and the data processing module is used for switching the state of the load and state switching module according to the first instruction.
Preferably, in the testing device, the communication module is in communication connection with the upper computer through a serial port.
Preferably, in the testing device, the detection box is in communication connection or CAN communication connection with the upper computer through a serial port.
The invention also provides a test system, comprising:
the device comprises an upper computer, a testing device and a detection box;
the upper computer generates a first instruction and sends the first instruction to the testing device; the testing device generates a first analog signal and an analog load network according to the first instruction, and sends the first analog signal to the detection box; the detection box generates a first feedback signal and a first detection signal according to the first analog signal, sends the first feedback signal to the upper computer, and sends the first detection signal to the testing device for detecting the analog load network; the detection box generates a second feedback signal according to a detection result and sends the second feedback signal to the upper computer;
and the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
Preferably, in the test system, the test device is in communication connection with the upper computer through a serial port.
Preferably, in the test system, the test box is in communication connection or CAN communication connection with the upper computer through a serial port.
Preferably, in the above test system, the detection box is further configured to send a third feedback signal to the test device, and the test device sends the third feedback signal to the upper computer.
Preferably, in the above test system, the cartridge and the test device exchange information via an analog circuit.
As can be seen from the above description, the present invention provides a testing apparatus and a testing system, including: the device comprises a communication module, an analog signal output module and a load and state switching module. The communication module receives a first instruction sent by the upper computer, subsequent operation is carried out, the analog signal output module generates a first analog signal according to the first instruction, the first analog signal is sent to the detection box, and the detection box generates a first feedback signal according to the first analog signal. The load and state switching module generates a simulated load network according to the first instruction, after the detection box receives the first simulated signal, the detection box generates a first detection signal, the first detection signal is sent to the load and state switching module and used for detecting the simulated load network, and finally the detection box generates a second feedback signal according to a detection result. The upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
The upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal, namely, the upper computer compares the signal data stored in the database according to the first feedback signal and the second feedback signal, and then judges the test result of the detection box.
The testing device and the testing system provided by the invention can simulate the working environment of the detection box in practical application, reduce the floor area to a great extent, realize the rapid detection of the test result of the cable detection box through analog signal interaction, greatly shorten the testing time and improve the testing efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another testing apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another testing apparatus according to an embodiment of the present invention;
fig. 4 is a structural framework diagram of a test system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the background art, in the test part of the LEU cable detection box, a connecting cable (the length of the cable is between 200m and 4500 m) with a plurality of distances occupies a large space during testing, the cable is heavy and inconvenient to transfer, the testing can be performed only in a fixed place during testing, and the manual requirement is large in some test environments, so that the problem that how to quickly detect the test result of the LEU cable detection box needs to be solved urgently is solved.
In order to solve the above problem, an embodiment of the present invention provides a test apparatus, including:
the device comprises a communication module, an analog signal output module and a load and state switching module;
the communication module is used for receiving a first instruction sent by the upper computer;
the analog signal output module is used for generating a first analog signal according to the first instruction and sending the first analog signal to the detection box; the detection box generates a first feedback signal according to the first analog signal;
the load and state switching module is used for generating a simulated load network according to the first instruction;
when the detection box receives the first analog signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module for detecting the analog load network; the detection box generates a second feedback signal according to the detection result;
and the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
As can be seen from the above description, the present invention provides a testing apparatus and a testing system, the testing apparatus including: the device comprises a communication module, an analog signal output module and a load and state switching module. The communication module receives a first instruction sent by the upper computer to perform subsequent operation, the analog signal output module can generate a first analog signal according to the first instruction and sends the first analog signal to the detection box, and the detection box generates a first feedback signal according to the first analog signal. The load and state switching module can generate an analog load network according to the first instruction, after the detection box receives the first analog signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module for detecting the analog load network, and finally the detection box generates a second feedback signal according to a detection result. The upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
The first analog signal and the analog load network are equivalent to simulating the working environment of the detection box in practical application, the first feedback signal and the second feedback signal are equivalent to the test result of the detection box in practical application, the detection box sends the first feedback signal and the second feedback signal to the upper computer, the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal, namely, the upper computer compares the first feedback signal and the second feedback signal with signal data stored in the database, and then judges the test result of the detection box.
The testing device provided by the invention can simulate the working environment of the detection box in practical application, greatly reduces the occupied area, can realize the rapid detection of the test result of the cable detection box through analog signal interaction, greatly shortens the test time and improves the test efficiency.
In order to explain the embodiments of the present invention in more detail, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present invention.
The test device includes:
a communication module 11, an analog signal output module 12 and a load and state switching module 13.
The communication module 11 is configured to receive a first instruction sent by an upper computer.
The communication module 11 is configured to receive a first instruction sent by an upper computer, and send the first instruction to each module in the testing apparatus, so that each module in the testing apparatus executes a corresponding operation according to the first instruction.
The analog signal output module 12 is configured to generate a first analog signal according to the first instruction, and send the first analog signal to a detection box, where the detection box generates a first feedback signal according to the first analog signal.
That is to say, the analog signal output module 12 can output an LEU signal in an analog manner, which is equivalent to replacing an LEU device in practical application, the analog signal output module 12 generates a first analog signal according to a first instruction sent by the upper computer, the first analog signal is equivalent to the LEU signal, the first analog signal is sent to the detection box, the detection box receives a signal sent by the LEU device in practical application, and then the determination is performed. It should be noted that the analog signal output module 12 can output various analog signals, including but not limited to LEU signals. Thus, the use condition of the cable between the LEU equipment and the LEU cable detection box and the LEU equipment can be detected.
The load and state switching module 13 is configured to generate a simulated load network according to the first instruction.
When the detection box receives the first analog signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module 13 for detecting the analog load network; the detection box generates a second feedback signal according to the detection result.
The load and status switching module 13 can simulate a load network when a cable with a certain length (the length of the cable is between 200m and 4500 m) is connected with a transponder, and the load network is open or short-circuited. That is, the load and state switching module 13 generates a simulated load network after receiving a first command generated by the upper computer, where the simulated load network is equivalent to the actual situation of the load network when a cable with a length of between 200m and 4500m is connected to a transponder, and when the detection box receives a first analog signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module 13 for detecting the simulated load network, which is equivalent to that in practical application, the use situations of the cable and transponder equipment between the LEU cable detection box and the transponder can be detected, and the devices such as the transponder, the transponder driver, and the cable are replaced. And the load and status switching module 13 can switch different load networks to simulate the test situation under different distance conditions.
And the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
That is to say, the first feedback signal and the second feedback signal that the detection box generated just are equivalent to the test result in practical application, and the detection box sends first feedback signal and second feedback signal to the host computer, and the host computer carries out data processing through first feedback signal and second feedback signal to show the result and supply the technical staff to refer to.
It should be noted that, in the present invention, the upper computer issues an instruction to the testing device, that is, different input conditions of the testing device are given, so as to obtain different testing results, and the testing results are automatically compared with the data in the database through signal interaction, and the information is verified, so as to avoid uncertainty caused by manual data comparison, and make the testing results more reliable.
When the vehicle passing signal is tested, the testing device needs to generate a corresponding simulation load network, and the simulation load network is realized by simulating the impedance load change of the transponder during the vehicle passing. And can replace actual accessories such as LEU equipment, transponders, and cables. Therefore, the occupied area is reduced to a great extent, the test result of the cable detection box can be rapidly detected through signal interaction, the test time is greatly shortened, and the test efficiency is improved.
In the invention, the upper computer software is compiled by using an MFC, and the upper computer comprises a main module, a communication submodule, a data processing submodule, a display submodule and a record storage submodule.
The communication sub-module is used for sending and receiving data information, sending a test instruction to the test device through the soft port, and receiving feedback test state information through the signal port of the detection box after the test is completed.
And the data processing submodule is used for carrying out data analysis processing on the fed back test state information and then submitting the data to the display submodule for display so as to be checked by a worker.
The display submodule is used for displaying the test result.
The recording submodule is used for storing the test result, so that a worker can have certain data to analyze, and further data are provided for subsequent improvement of the test device.
In another embodiment of the present invention, referring to fig. 2, the testing apparatus further includes:
the data processing module 21 is configured to perform corresponding operations according to a first instruction generated by the upper computer, for example, coordinate ordered work among the modules, and also control the load and state switching module 13 to perform state switching, for example, control the load and state switching module 13 to switch different load networks to simulate test conditions in different distance states.
Referring to fig. 3, the test apparatus further includes:
and the power supply module 31 is used for providing required voltage for each module in the testing device by the power supply module 31. The power supply module 31 is connected with a power adapter with specification of converting 220VAC to 5VDC 2A.
Moreover, it should be noted that the communication module 11 is in communication connection with the upper computer through a serial port, and the detection box is in communication connection with the upper computer through a serial port or a CAN communication.
The embodiment of the invention also provides a test system, and the test system refers to fig. 4.
The test system includes:
The upper computer 41 generates a first instruction and sends the first instruction to the testing device 42; the testing device 42 generates a first analog signal and an analog load network according to the first instruction, and sends the first analog signal to the detecting box 43; the detection box 43 generates a first feedback signal and a first detection signal according to the first analog signal, sends the first feedback signal to the upper computer 41, and sends the first detection signal to the testing device 42 for detecting the analog load network; the detection box 43 generates a second feedback signal according to the detection result, and sends the second feedback signal to the upper computer 41.
The upper computer 41 detects the working state of the detection box 43 according to the first feedback signal and the second feedback signal.
In the process of debugging the detection box 43, after the upper computer 41, the testing device 42 and the detection box 43 are connected, firstly conducting a conductivity test, in order to check whether the detection box 43 has wrong lines or short lines, the test result can be fed back to the upper computer 41 to be displayed and stored, and data storage can be used for comparison and judgment of workers. And then, the upper computer 41 automatically sends the instruction parameters to the detection box through the serial port or the CAN port, then receives feedback information for inspection, and displays the comparison result and the original data for operators to trace. The debugging of the cartridge 43 can be automatically performed.
The detailed operation and signal flow in the test section are as described above in the test apparatus section, and will not be described herein again.
It should be noted that in the test system, the test device 42 is in communication connection with the upper computer 41 through a serial port. The detection box 43 is in communication connection or CAN communication connection with the upper computer 41 through a serial port. The detection box 43 and the testing device 42 perform information interaction through an analog circuit.
It should be noted here that an information interaction function can be realized between the detection box 43 and the testing device 42, an information interaction function can also be realized between the testing device 42 and the upper computer 41, the detection box 43 is further configured to send a third feedback signal to the testing device 42, and the testing device 42 sends the third feedback signal to the upper computer 41. Primarily to detect the operating state of the test device 42.
For example, if the test result of the detection box is accurate, the detection box sends the third feedback information to the test device, the test device sends the third feedback information to the upper computer, and the test device can be tested by comparing the third feedback information with the original information. This function is also within the scope of the present invention.
According to the test system, the working environment of the detection box is realized by simulating each signal according to the test device, the debugging and the test work of the detection box are carried out through the information interaction of the upper computer and the test device, the equipment such as external LEU equipment, a transponder and a cable is not required to be relied on, the whole automatic test is realized, the floor area is reduced to a great extent, the test result of the cable detection box can be quickly detected through the simulation signal interaction, the test time is greatly shortened, and the test efficiency is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A testing device, applied to an LEU cable detection box, comprising:
the device comprises a communication module, an analog signal output module and a load and state switching module;
the communication module is used for receiving a first instruction sent by the upper computer;
the analog signal output module is used for generating a first analog signal according to the first instruction, wherein the type of the signal simulated by the first analog signal is an LEU equipment signal, and the first analog signal is sent to the detection box; the detection box generates a first feedback signal according to the first analog signal;
the load and state switching module is used for generating a simulated load network according to the first instruction;
when the detection box receives the first analog signal, the detection box generates a first detection signal and sends the first detection signal to the load and state switching module for detecting the analog load network; the detection box generates a second feedback signal according to the detection result;
and the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
2. The testing device of claim 1, further comprising:
and the power supply module is used for providing voltage for the test device.
3. The testing device of claim 1, further comprising:
and the data processing module is used for switching the state of the load and state switching module according to the first instruction.
4. The testing device of claim 1, wherein the communication module is in communication connection with the upper computer through a serial port.
5. The testing device of claim 1, wherein the testing box is in communication connection with the upper computer through a serial port or CAN communication connection.
6. A test system for an LEU cable test cassette, the test system comprising:
the device comprises an upper computer, a testing device and a detection box;
the upper computer generates a first instruction and sends the first instruction to the testing device; the testing device generates a first analog signal and an analog load network according to the first instruction, the type of the signal simulated by the first analog signal is an LEU equipment signal, and the first analog signal is sent to the detection box; the detection box generates a first feedback signal and a first detection signal according to the first analog signal, sends the first feedback signal to the upper computer, and sends the first detection signal to the testing device for detecting the analog load network; the detection box generates a second feedback signal according to a detection result and sends the second feedback signal to the upper computer;
and the upper computer detects the working state of the detection box according to the first feedback signal and the second feedback signal.
7. The test system of claim 6, wherein the test device is in communication connection with the upper computer through a serial port.
8. The test system of claim 6, wherein the test box is in communication connection with the upper computer through a serial port or CAN communication connection.
9. The testing system of claim 6, wherein the testing box is further configured to send a third feedback signal to the testing device, the testing device sends the third feedback signal to the upper computer, and the third feedback signal is used to detect an operating state of the testing device.
10. The testing system of claim 9, wherein the cartridge and the testing device interact via analog circuitry.
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| CN109176601B (en) * | 2018-09-21 | 2022-04-29 | 北京云迹科技股份有限公司 | Door opening test method and device for robot |
| CN110928274B (en) * | 2019-12-09 | 2021-03-02 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Test system of LEU equipment |
| CN112557964A (en) * | 2020-12-02 | 2021-03-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Portable 2M line detection device |
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| CN201489104U (en) * | 2009-08-19 | 2010-05-26 | 成都川美新技术开发有限公司 | GPIB interface-based automatic test system for power detector |
| CN202190280U (en) * | 2011-09-14 | 2012-04-11 | 北京铁路信号有限公司 | Test device for transponder and ground electronic unit |
| CN102818968B (en) * | 2012-09-07 | 2015-05-06 | 北京交大思诺科技有限公司 | System and method for detecting transponder cable |
| CN103095384A (en) * | 2012-12-25 | 2013-05-08 | 北京铁路信号有限公司 | Closed loop test method and system of ground-electronic-unit lineside electronic unit (LEU) |
| CN103427920B (en) * | 2013-08-02 | 2015-06-03 | 北京交大思诺科技有限公司 | Test device and test method for C interface signals of lineside electronic unit (LEU) |
| CN103529416B (en) * | 2013-10-12 | 2017-06-27 | 国家电网公司 | The laboratory simulation test device and its test method of electrical equipment on-line measuring device |
| CN103513223B (en) * | 2013-10-15 | 2016-01-20 | 国家电网公司 | A kind of electric energy meter communication interface load capacity test system |
| CN105116238B (en) * | 2014-05-05 | 2018-04-06 | 广州地铁集团有限公司 | A kind of subway train analog input and output module test system and its method of testing |
| CN104090259B (en) * | 2014-07-04 | 2017-02-01 | 宁波三星智能电气有限公司 | Automatic gauge test platform and method based on Python script |
| CN105738130B (en) * | 2014-12-08 | 2018-06-12 | 联创汽车电子有限公司 | Electric booster steering controller hardware capability testboard |
| CN204993401U (en) * | 2015-08-05 | 2016-01-20 | 四川浩铁仪器仪表有限公司 | Parameter and fault detector are synthesized to transponder |
| CN105931446A (en) * | 2016-06-28 | 2016-09-07 | 常州机电职业技术学院 | Testing system for gas data acquiring unit and working method of testing system |
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